Search Results

Search found 80218 results on 3209 pages for 'client side data'.

Page 415/3209 | < Previous Page | 411 412 413 414 415 416 417 418 419 420 421 422  | Next Page >

• cPanel Virtfs won't umount

  - by JPerkSter

  Anyone have any experience with virtfs on cPanel servers? I can't seem to get them to unmount, as they say they are already unmounted: [root@Server ~]# cat /proc/mounts | grep user /dev/root /home/virtfs/user/lib ext3 rw,errors=continue,data=ordered 0 0 /dev/root /home/virtfs/user/opt ext3 rw,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/lib ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/sbin ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/share ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/bin ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/man ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/X11R6 ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/kerberos ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/libexec ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/local/bin ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/local/share ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/local/Zend ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/local/IonCube ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/include ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda3 /home/virtfs/user/usr/local/lib ext3 rw,nodev,errors=continue,data=ordered 0 0 /dev/sda2 /home/virtfs/user/var/spool ext3 rw,nodev,noatime,nodiratime,errors=continue,data=ordered 0 0 /dev/sda2 /home/virtfs/user/var/lib ext3 rw,nodev,noatime,nodiratime,errors=continue,data=ordered 0 0 /dev/sda2 /home/virtfs/user/var/cpanel ext3 rw,nodev,noatime,nodiratime,errors=continue,data=ordered 0 0 /dev/sda2 /home/virtfs/user/var/run ext3 rw,nodev,noatime,nodiratime,errors=continue,data=ordered 0 0 /dev/sda2 /home/virtfs/user/var/log ext3 rw,nodev,noatime,nodiratime,errors=continue,data=ordered 0 0 /dev/sda6 /home/virtfs/user/tmp ext3 rw,nosuid,nodev,noexec,noatime,errors=continue,data=ordered 0 0 /dev/root /home/virtfs/user/bin ext3 rw,errors=continue,data=ordered 0 0 [root@Server ~]# for i in cat /proc/mounts |grep virtfs |grep user |awk '{print$2}'; do umount $i; done umount: /home/virtfs/user/lib: not mounted umount: /home/virtfs/user/opt: not mounted umount: /home/virtfs/user/usr/lib: not mounted umount: /home/virtfs/user/usr/sbin: not mounted umount: /home/virtfs/user/usr/share: not mounted umount: /home/virtfs/user/usr/bin: not mounted umount: /home/virtfs/user/usr/man: not mounted umount: /home/virtfs/user/usr/X11R6: not mounted umount: /home/virtfs/user/usr/kerberos: not mounted umount: /home/virtfs/user/usr/libexec: not mounted umount: /home/virtfs/user/usr/local/bin: not mounted umount: /home/virtfs/user/usr/local/share: not mounted umount: /home/virtfs/user/usr/local/Zend: not mounted umount: /home/virtfs/user/usr/local/IonCube: not mounted umount: /home/virtfs/user/usr/include: not mounted umount: /home/virtfs/user/usr/local/lib: not mounted umount: /home/virtfs/user/var/spool: not mounted umount: /home/virtfs/user/var/lib: not mounted umount: /home/virtfs/user/var/cpanel: not mounted umount: /home/virtfs/user/var/run: not mounted umount: /home/virtfs/user/var/log: not mounted umount: /home/virtfs/user/tmp: not mounted umount: /home/virtfs/user/bin: not mounted umount: /home/virtfs/user/dev: not mounted umount: /home/virtfs/user/proc: not mounted

  Read the article

• Deploying Django on EC2 using Bitnami Djangostack: WSGI script cannot be loadded

  - by Arman

  I've been struggling to deploy Django application on Amazon EC2 using Bitnami Djangostack for the last couple of days. When I go to http://dewey.io I see the default bitnami page (/opt/bitnami/apache2/htdocs/index.html), however, when I open http://dewey.io/portnoy, I get 'Internal Server Error'. But it's known that if mod_wsgi is setup correctly, the DocumentRoot value from httpd.conf is ignored, thus, I should see my Django application when accessing http://dewey.io. Essentially, the main error is this - 'Target WSGI script cannot be loaded as Python module'. Two questions: 1) any ideas how to fix these mod_wsgi errors (the Apache logs are below)? 2) how to disable the default /opt/bitnami/apache2/htdocs/index.html page and show my homepage from django application when accessing http://dewey.io? Thank you in advance! The details On my EC2 instance I"m running 64-bit Ubuntu 12.04 with DjangoStack 1.4-1. My Django project is located here - /opt/bitnami/apps/django/django_projects/portnoy. root@dewey:/opt/bitnami/apps/django/django_projects/portnoy# ls manage.py README.md settings.py site_media users Procfile sandbox static test.py topics urls.py views.py __init__.pyc templates testviews.py Apache error logs (/opt/bitnami/apache2/logs/error_log): [Wed Jul 04 02:29:00 2012] [error] [client 140.180.6.212] File does not exist: /opt/bitnami/apache2/htdocs/favicon.ico [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] mod_wsgi (pid=3990): Target WSGI script '/opt/bitnami/apps/django/scripts/django.wsgi' cannot be loaded as Python module. [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] mod_wsgi (pid=3990): Exception occurred processing WSGI script '/opt/bitnami/apps/django/scripts/django.wsgi'. [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] Traceback (most recent call last): [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/apps/django/scripts/django.wsgi", line 8, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] import django.core.handlers.wsgi [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/apps/django/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 8, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] from django import http [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/apps/django/lib/python2.7/site-packages/django/http/__init__.py", line 119, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] from django.http.multipartparser import MultiPartParser [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/apps/django/lib/python2.7/site-packages/django/http/multipartparser.py", line 13, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] from django.utils.text import unescape_entities [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/apps/django/lib/python2.7/site-packages/django/utils/text.py", line 4, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] from gzip import GzipFile [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/python/lib/python2.7/gzip.py", line 10, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] import io [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File "/opt/bitnami/python/lib/python2.7/io.py", line 60, in <module> [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] import _io [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] ImportError: /opt/bitnami/python/lib/python2.7/lib-dynload/_io.so: undefined symbol: PyUnicodeUCS2_AsEncodedString [Wed Jul 04 02:29:15 2012] [error] [client 140.180.6.212] File does not exist: /opt/bitnami/apache2/htdocs/favicon.ico [Wed Jul 04 02:44:00 2012] [error] [client 140.180.6.212] File does not exist: /opt/bitnami/apache2/htdocs/favicon.ico Let me quickly introduce the contents of the files to make the case more concrete. This is my /etc/apache2/sites-available/default file <VirtualHost *:80> ServerAdmin [email protected] ServerName dewey.io Alias /site_media/ /opt/bitnami/apps/django/django_projects/portnoy/site_media/ Alias /static/ /opt/bitnami/apps/django/lib/python2.7/site-packages/django/contrib/admin/static/ Alias /robots.txt /opt/bitnami/apps/django/django_projects/portnoy/site_media/robots.txt Alias /favicon.ico /opt/bitnami/apps/django/django_projects/portnoy/site_media/favicon.ico CustomLog "|/usr/sbin/rotatelogs /opt/bitnami/apps/django/django_projects/logs/access.log.%Y%m%d-%H%M%S 5M" combined ErrorLog "|/usr/sbin/rotatelogs /opt/bitnami/apps/django/django_projects/logs/error.log.%Y%m%d-%H%M%S 5M" LogLevel warn WSGIProcessGroup dewey.io WSGIScriptAlias / /opt/bitnami/apps/django/scripts/django.wsgi <Directory /opt/bitnami/apps/django/django_projects/portnoy/site_media> Order deny,allow Allow from all Options -Indexes FollowSymLinks </Directory> <Directory /opt/bitnami/apps/django/django_projects/portnoy/conf/apache> Order deny,allow Allow from all </Directory> </VirtualHost> This is my /opt/bitnami/apps/django/scripts/django.wsgi file import os, sys sys.path.append('/opt/bitnami/apps/django/lib/python2.7/site-packages/') sys.path.append('/opt/bitnami/apps/django/django_projects') sys.path.append('/opt/bitnami/apps/django/django_projects/portnoy') os.environ['DJANGO_SETTINGS_MODULE'] = 'portnoy.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() Here is the relevant portion of /opt/bitnami/apache2/conf/httpd.conf file: ServerRoot "/opt/bitnami/apache2" Listen 80 ServerName dewey.io DocumentRoot "/opt/bitnami/apache2/htdocs" LoadModule wsgi_module modules/mod_wsgi.so WSGIPythonHome /opt/bitnami/python Include "/opt/bitnami/apache2/conf/ssi.conf" Include "/opt/bitnami/apps/django/conf/django.conf" Include "/opt/bitnami/apache2/conf/bitnami/httpd.conf"

  Read the article

• Node.js Adventure - Storage Services and Service Runtime

  - by Shaun

  When I described on how to host a Node.js application on Windows Azure, one of questions might be raised about how to consume the vary Windows Azure services, such as the storage, service bus, access control, etc.. Interact with windows azure services is available in Node.js through the Windows Azure Node.js SDK, which is a module available in NPM. In this post I would like to describe on how to use Windows Azure Storage (a.k.a. WAS) as well as the service runtime.   Consume Windows Azure Storage Let’s firstly have a look on how to consume WAS through Node.js. As we know in the previous post we can host Node.js application on Windows Azure Web Site (a.k.a. WAWS) as well as Windows Azure Cloud Service (a.k.a. WACS). In theory, WAWS is also built on top of WACS worker roles with some more features. Hence in this post I will only demonstrate for hosting in WACS worker role. The Node.js code can be used when consuming WAS when hosted on WAWS. But since there’s no roles in WAWS, the code for consuming service runtime mentioned in the next section cannot be used for WAWS node application. We can use the solution that I created in my last post. Alternatively we can create a new windows azure project in Visual Studio with a worker role, add the “node.exe” and “index.js” and install “express” and “node-sqlserver” modules, make all files as “Copy always”. In order to use windows azure services we need to have Windows Azure Node.js SDK, as knows as a module named “azure” which can be installed through NPM. Once we downloaded and installed, we need to include them in our worker role project and make them as “Copy always”. You can use my “Copy all always” tool mentioned in my last post to update the currently worker role project file. You can also find the source code of this tool here. The source code of Windows Azure SDK for Node.js can be found in its GitHub page. It contains two parts. One is a CLI tool which provides a cross platform command line package for Mac and Linux to manage WAWS and Windows Azure Virtual Machines (a.k.a. WAVM). The other is a library for managing and consuming vary windows azure services includes tables, blobs, queues, service bus and the service runtime. I will not cover all of them but will only demonstrate on how to use tables and service runtime information in this post. You can find the full document of this SDK here. Back to Visual Studio and open the “index.js”, let’s continue our application from the last post, which was working against Windows Azure SQL Database (a.k.a. WASD). The code should looks like this. 1: var express = require("express"); 2: var sql = require("node-sqlserver"); 3:  4: var connectionString = "Driver={SQL Server Native Client 10.0};Server=tcp:ac6271ya9e.database.windows.net,1433;Database=synctile;Uid=shaunxu@ac6271ya9e;Pwd={PASSWORD};Encrypt=yes;Connection Timeout=30;"; 5: var port = 80; 6:  7: var app = express(); 8:  9: app.configure(function () { 10: app.use(express.bodyParser()); 11: }); 12:  13: app.get("/", function (req, res) { 14: sql.open(connectionString, function (err, conn) { 15: if (err) { 16: console.log(err); 17: res.send(500, "Cannot open connection."); 18: } 19: else { 20: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 21: if (err) { 22: console.log(err); 23: res.send(500, "Cannot retrieve records."); 24: } 25: else { 26: res.json(results); 27: } 28: }); 29: } 30: }); 31: }); 32:  33: app.get("/text/:key/:culture", function (req, res) { 34: sql.open(connectionString, function (err, conn) { 35: if (err) { 36: console.log(err); 37: res.send(500, "Cannot open connection."); 38: } 39: else { 40: var key = req.params.key; 41: var culture = req.params.culture; 42: var command = "SELECT * FROM [Resource] WHERE [Key] = '" + key + "' AND [Culture] = '" + culture + "'"; 43: conn.queryRaw(command, function (err, results) { 44: if (err) { 45: console.log(err); 46: res.send(500, "Cannot retrieve records."); 47: } 48: else { 49: res.json(results); 50: } 51: }); 52: } 53: }); 54: }); 55:  56: app.get("/sproc/:key/:culture", function (req, res) { 57: sql.open(connectionString, function (err, conn) { 58: if (err) { 59: console.log(err); 60: res.send(500, "Cannot open connection."); 61: } 62: else { 63: var key = req.params.key; 64: var culture = req.params.culture; 65: var command = "EXEC GetItem '" + key + "', '" + culture + "'"; 66: conn.queryRaw(command, function (err, results) { 67: if (err) { 68: console.log(err); 69: res.send(500, "Cannot retrieve records."); 70: } 71: else { 72: res.json(results); 73: } 74: }); 75: } 76: }); 77: }); 78:  79: app.post("/new", function (req, res) { 80: var key = req.body.key; 81: var culture = req.body.culture; 82: var val = req.body.val; 83:  84: sql.open(connectionString, function (err, conn) { 85: if (err) { 86: console.log(err); 87: res.send(500, "Cannot open connection."); 88: } 89: else { 90: var command = "INSERT INTO [Resource] VALUES ('" + key + "', '" + culture + "', N'" + val + "')"; 91: conn.queryRaw(command, function (err, results) { 92: if (err) { 93: console.log(err); 94: res.send(500, "Cannot retrieve records."); 95: } 96: else { 97: res.send(200, "Inserted Successful"); 98: } 99: }); 100: } 101: }); 102: }); 103:  104: app.listen(port); Now let’s create a new function, copy the records from WASD to table service. 1. Delete the table named “resource”. 2. Create a new table named “resource”. These 2 steps ensures that we have an empty table. 3. Load all records from the “resource” table in WASD. 4. For each records loaded from WASD, insert them into the table one by one. 5. Prompt to user when finished. In order to use table service we need the storage account and key, which can be found from the developer portal. Just select the storage account and click the Manage Keys button. Then create two local variants in our Node.js application for the storage account name and key. Since we need to use WAS we need to import the azure module. Also I created another variant stored the table name. In order to work with table service I need to create the storage client for table service. This is very similar as the Windows Azure SDK for .NET. As the code below I created a new variant named “client” and use “createTableService”, specified my storage account name and key. 1: var azure = require("azure"); 2: var storageAccountName = "synctile"; 3: var storageAccountKey = "/cOy9L7xysXOgPYU9FjDvjrRAhaMX/5tnOpcjqloPNDJYucbgTy7MOrAW7CbUg6PjaDdmyl+6pkwUnKETsPVNw=="; 4: var tableName = "resource"; 5: var client = azure.createTableService(storageAccountName, storageAccountKey); Now create a new function for URL “/was/init” so that we can trigger it through browser. Then in this function we will firstly load all records from WASD. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: } 18: } 19: }); 20: } 21: }); 22: }); When we succeed loaded all records we can start to transform them into table service. First I need to recreate the table in table service. This can be done by deleting and creating the table through table client I had just created previously. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: // transform the records 26: } 27: }); 28: }); 29: } 30: } 31: }); 32: } 33: }); 34: }); As you can see, the azure SDK provide its methods in callback pattern. In fact, almost all modules in Node.js use the callback pattern. For example, when I deleted a table I invoked “deleteTable” method, provided the name of the table and a callback function which will be performed when the table had been deleted or failed. Underlying, the azure module will perform the table deletion operation in POSIX async threads pool asynchronously. And once it’s done the callback function will be performed. This is the reason we need to nest the table creation code inside the deletion function. If we perform the table creation code after the deletion code then they will be invoked in parallel. Next, for each records in WASD I created an entity and then insert into the table service. Finally I send the response to the browser. Can you find a bug in the code below? I will describe it later in this post. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: // transform the records 26: for (var i = 0; i < results.rows.length; i++) { 27: var entity = { 28: "PartitionKey": results.rows[i][1], 29: "RowKey": results.rows[i][0], 30: "Value": results.rows[i][2] 31: }; 32: client.insertEntity(tableName, entity, function (error) { 33: if (error) { 34: error["target"] = "insertEntity"; 35: res.send(500, error); 36: } 37: else { 38: console.log("entity inserted"); 39: } 40: }); 41: } 42: // send the 43: console.log("all done"); 44: res.send(200, "All done!"); 45: } 46: }); 47: }); 48: } 49: } 50: }); 51: } 52: }); 53: }); Now we can publish it to the cloud and have a try. But normally we’d better test it at the local emulator first. In Node.js SDK there are three build-in properties which provides the account name, key and host address for local storage emulator. We can use them to initialize our table service client. We also need to change the SQL connection string to let it use my local database. The code will be changed as below. 1: // windows azure sql database 2: //var connectionString = "Driver={SQL Server Native Client 10.0};Server=tcp:ac6271ya9e.database.windows.net,1433;Database=synctile;Uid=shaunxu@ac6271ya9e;Pwd=eszqu94XZY;Encrypt=yes;Connection Timeout=30;"; 3: // sql server 4: var connectionString = "Driver={SQL Server Native Client 11.0};Server={.};Database={Caspar};Trusted_Connection={Yes};"; 5:  6: var azure = require("azure"); 7: var storageAccountName = "synctile"; 8: var storageAccountKey = "/cOy9L7xysXOgPYU9FjDvjrRAhaMX/5tnOpcjqloPNDJYucbgTy7MOrAW7CbUg6PjaDdmyl+6pkwUnKETsPVNw=="; 9: var tableName = "resource"; 10: // windows azure storage 11: //var client = azure.createTableService(storageAccountName, storageAccountKey); 12: // local storage emulator 13: var client = azure.createTableService(azure.ServiceClient.DEVSTORE_STORAGE_ACCOUNT, azure.ServiceClient.DEVSTORE_STORAGE_ACCESS_KEY, azure.ServiceClient.DEVSTORE_TABLE_HOST); Now let’s run the application and navigate to “localhost:12345/was/init” as I hosted it on port 12345. We can find it transformed the data from my local database to local table service. Everything looks fine. But there is a bug in my code. If we have a look on the Node.js command window we will find that it sent response before all records had been inserted, which is not what I expected. The reason is that, as I mentioned before, Node.js perform all IO operations in non-blocking model. When we inserted the records we executed the table service insert method in parallel, and the operation of sending response was also executed in parallel, even though I wrote it at the end of my logic. The correct logic should be, when all entities had been copied to table service with no error, then I will send response to the browser, otherwise I should send error message to the browser. To do so I need to import another module named “async”, which helps us to coordinate our asynchronous code. Install the module and import it at the beginning of the code. Then we can use its “forEach” method for the asynchronous code of inserting table entities. The first argument of “forEach” is the array that will be performed. The second argument is the operation for each items in the array. And the third argument will be invoked then all items had been performed or any errors occurred. Here we can send our response to browser. 1: app.get("/was/init", function (req, res) { 2: // load all records from windows azure sql database 3: sql.open(connectionString, function (err, conn) { 4: if (err) { 5: console.log(err); 6: res.send(500, "Cannot open connection."); 7: } 8: else { 9: conn.queryRaw("SELECT * FROM [Resource]", function (err, results) { 10: if (err) { 11: console.log(err); 12: res.send(500, "Cannot retrieve records."); 13: } 14: else { 15: if (results.rows.length > 0) { 16: // begin to transform the records into table service 17: // recreate the table named 'resource' 18: client.deleteTable(tableName, function (error) { 19: client.createTableIfNotExists(tableName, function (error) { 20: if (error) { 21: error["target"] = "createTableIfNotExists"; 22: res.send(500, error); 23: } 24: else { 25: async.forEach(results.rows, 26: // transform the records 27: function (row, callback) { 28: var entity = { 29: "PartitionKey": row[1], 30: "RowKey": row[0], 31: "Value": row[2] 32: }; 33: client.insertEntity(tableName, entity, function (error) { 34: if (error) { 35: callback(error); 36: } 37: else { 38: console.log("entity inserted."); 39: callback(null); 40: } 41: }); 42: }, 43: // send reponse 44: function (error) { 45: if (error) { 46: error["target"] = "insertEntity"; 47: res.send(500, error); 48: } 49: else { 50: console.log("all done"); 51: res.send(200, "All done!"); 52: } 53: } 54: ); 55: } 56: }); 57: }); 58: } 59: } 60: }); 61: } 62: }); 63: }); Run it locally and now we can find the response was sent after all entities had been inserted. Query entities against table service is simple as well. Just use the “queryEntity” method from the table service client and providing the partition key and row key. We can also provide a complex query criteria as well, for example the code here. In the code below I queried an entity by the partition key and row key, and return the proper localization value in response. 1: app.get("/was/:key/:culture", function (req, res) { 2: var key = req.params.key; 3: var culture = req.params.culture; 4: client.queryEntity(tableName, culture, key, function (error, entity) { 5: if (error) { 6: res.send(500, error); 7: } 8: else { 9: res.json(entity); 10: } 11: }); 12: }); And then tested it on local emulator. Finally if we want to publish this application to the cloud we should change the database connection string and storage account. For more information about how to consume blob and queue service, as well as the service bus please refer to the MSDN page.   Consume Service Runtime As I mentioned above, before we published our application to the cloud we need to change the connection string and account information in our code. But if you had played with WACS you should have known that the service runtime provides the ability to retrieve configuration settings, endpoints and local resource information at runtime. Which means we can have these values defined in CSCFG and CSDEF files and then the runtime should be able to retrieve the proper values. For example we can add some role settings though the property window of the role, specify the connection string and storage account for cloud and local. And the can also use the endpoint which defined in role environment to our Node.js application. In Node.js SDK we can get an object from “azure.RoleEnvironment”, which provides the functionalities to retrieve the configuration settings and endpoints, etc.. In the code below I defined the connection string variants and then use the SDK to retrieve and initialize the table client. 1: var connectionString = ""; 2: var storageAccountName = ""; 3: var storageAccountKey = ""; 4: var tableName = ""; 5: var client; 6:  7: azure.RoleEnvironment.getConfigurationSettings(function (error, settings) { 8: if (error) { 9: console.log("ERROR: getConfigurationSettings"); 10: console.log(JSON.stringify(error)); 11: } 12: else { 13: console.log(JSON.stringify(settings)); 14: connectionString = settings["SqlConnectionString"]; 15: storageAccountName = settings["StorageAccountName"]; 16: storageAccountKey = settings["StorageAccountKey"]; 17: tableName = settings["TableName"]; 18:  19: console.log("connectionString = %s", connectionString); 20: console.log("storageAccountName = %s", storageAccountName); 21: console.log("storageAccountKey = %s", storageAccountKey); 22: console.log("tableName = %s", tableName); 23:  24: client = azure.createTableService(storageAccountName, storageAccountKey); 25: } 26: }); In this way we don’t need to amend the code for the configurations between local and cloud environment since the service runtime will take care of it. At the end of the code we will listen the application on the port retrieved from SDK as well. 1: azure.RoleEnvironment.getCurrentRoleInstance(function (error, instance) { 2: if (error) { 3: console.log("ERROR: getCurrentRoleInstance"); 4: console.log(JSON.stringify(error)); 5: } 6: else { 7: console.log(JSON.stringify(instance)); 8: if (instance["endpoints"] && instance["endpoints"]["nodejs"]) { 9: var endpoint = instance["endpoints"]["nodejs"]; 10: app.listen(endpoint["port"]); 11: } 12: else { 13: app.listen(8080); 14: } 15: } 16: }); But if we tested the application right now we will find that it cannot retrieve any values from service runtime. This is because by default, the entry point of this role was defined to the worker role class. In windows azure environment the service runtime will open a named pipeline to the entry point instance, so that it can connect to the runtime and retrieve values. But in this case, since the entry point was worker role and the Node.js was opened inside the role, the named pipeline was established between our worker role class and service runtime, so our Node.js application cannot use it. To fix this problem we need to open the CSDEF file under the azure project, add a new element named Runtime. Then add an element named EntryPoint which specify the Node.js command line. So that the Node.js application will have the connection to service runtime, then it’s able to read the configurations. Start the Node.js at local emulator we can find it retrieved the connections, storage account for local. And if we publish our application to azure then it works with WASD and storage service through the configurations for cloud.   Summary In this post I demonstrated how to use Windows Azure SDK for Node.js to interact with storage service, especially the table service. I also demonstrated on how to use WACS service runtime, how to retrieve the configuration settings and the endpoint information. And in order to make the service runtime available to my Node.js application I need to create an entry point element in CSDEF file and set “node.exe” as the entry point. I used five posts to introduce and demonstrate on how to run a Node.js application on Windows platform, how to use Windows Azure Web Site and Windows Azure Cloud Service worker role to host our Node.js application. I also described how to work with other services provided by Windows Azure platform through Windows Azure SDK for Node.js. Node.js is a very new and young network application platform. But since it’s very simple and easy to learn and deploy, as well as, it utilizes single thread non-blocking IO model, Node.js became more and more popular on web application and web service development especially for those IO sensitive projects. And as Node.js is very good at scaling-out, it’s more useful on cloud computing platform. Use Node.js on Windows platform is new, too. The modules for SQL database and Windows Azure SDK are still under development and enhancement. It doesn’t support SQL parameter in “node-sqlserver”. It does support using storage connection string to create the storage client in “azure”. But Microsoft is working on make them easier to use, working on add more features and functionalities.   PS, you can download the source code here. You can download the source code of my “Copy all always” tool here.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

  Read the article

• Arduino - AdHoc Network Setup

  - by methodMan

  I`m currently working with an arduino trying to build an adhoc network to which a device can connect to and send web request to. The problem I am currently having is that I can only set up one connection and then when that connection is terminated (client.stop()) all subsequent connections are not picked up by the server, even a curl command just sits there spinning. The first connection I start when I reset the server works fine and I am able to talk to the server; but after that, the arduino can no longer find new clients (even though it's trying with the library given). I`m using the sparkfun library for the wifly shield cloned from github, along with an Arduino Uno. My current code is based off their default example 'WiFly_AdHoc_Example' but I had to remove a few things to get the network to start up which might be the cause of this problem. Here is the .ino file that I am running. #include <SPI.h> #include <WiFly.h> //#include <SoftwareSerial.h> //SoftwareSerial mySerial( 5, 4); //Part from example not used(see below) WiFlyServer server(80); void setup() { Serial.begin(9600); //The code below is from the example but when I run it the WiFly will hang // on Wifly.begin(). Without it the WiFly starts up fine but only works for // one request. //mySerial.begin(9600); //WiFly.setUart(&mySerial); // Tell the WiFly library that we are not //using the SPIUart Serial.println("**************Starting WiFly**************"); // Enable Adhoc mod WiFly.begin(true); Serial.println("WiFly started, creating network."); if (!WiFly.createAdHocNetwork("wifly")) { Serial.print("Failed to create ad hoc network."); while (1) { // Hang on failure. } } Serial.println("Network created"); Serial.print("IP: "); Serial.println(WiFly.ip()); Serial.println("Starting Server..."); server.begin(); Serial.print("Server started, waiting for client."); } void loop() { delay(200); WiFlyClient client = server.available(); if (client) { Serial.println("Client Found."); // a string to store received commands String current_command = ""; while (client.connected()) { if (client.available()) { //Gets a character from the sent request. char c = client.read(); if (c=='#' || c=='\n') //End of extraneous output { current_command = ""; } else if(c!= '\n') { current_command+=c; } if (current_command== "get") { // output the value of each analog input pin for (int i = 0; i < 6; i++) { client.print("analog input "); client.print(i); client.print(" is "); client.print(analogRead(i)); client.println("<br />"); } } else if(current_command== "hello") { client.println("Hello there, I'm still here."); } else if (current_command== "quit") { client.println("Goodbye..."); client.stop(); current_command == ""; break; } else if (current_command == "*OPEN*") { current_command == ""; } } } // give the web browser time to receive the data delay(200); // close the connection client.stop(); } } If anyone understands this better then I (I`m new to arduino) please leave some helpful comments. Or just help me out on getting this little web server up and running so that I can hit it with more then one request. If there is any other helpful information I can provide please let me know. Thanks for reading and hope you can help. EDIT: Using telnet I can successfully connect (the first time) and send commands to the arduino including one to terminate the connection (calls the client.stop() method). But when I try to reconnect though telnet, it says the connection was successful but on the arduino it's still looping thinking the client is still false. WHAT??? I know right, I'm getting mixed messages from telnet vs arduino. None of the commands work obviously since the ardunio is still looping waiting for a client that evaluates to true. I'm gonna take a look at WiFlyServer from the library I imported and see if I can dig up the problem because somehow that server.available() method isn't finding new clients. Noticing a lot of TODO's in the library code.... EDIT: So I found the reason for the problem, it was in WiFlyServer.cpp file from the sparkfun library. The code that was causing the reconnect issue was infact in the server.availible() method. Right at the top of the method, there is a check: // TODO: Ensure no active non-server client connection. if (!WiFly.serverConnectionActive) { activeClient._port = 0; } For some reason when I comment this out, I can reconnect fine and everything works as it should. I will now dive into the library and see if I can fix this, I'm not exactly sure what this is doing but it gets called when the server connection is not active and is somehow blocking subsequent connections. Does anyone have any ideas how I might get to the root of this problem without using this commenting hack? Please help, no-one has commented or answered yet! Don't you want to join in on the fun???

  Read the article

• Trouble updating my datagrid in WPF

  - by wrigley06

  As the title indicates, I'm having trouble updating a datagrid in WPF. Basically what I'm trying to accomplish is a datagrid, that is connected to a SQL Server database, that updates automatically once a user enters information into a few textboxes and clicks a submit button. You'll notice that I have a command that joins two tables. The data from the Quote_Data table will be inserted by a different user at a later time. For now my only concern is getting the information from the textboxes and into the General_Info table, and from there into my datagrid. The code, which I'll include below compiles fine, but when I hit the submit button, nothing happens. This is the first application I've ever built working with a SQL Database so many of these concepts are new to me, which is why you'll probably look at my code and wonder what is he thinking. public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } public DataSet mds; // main data set (mds) private void Window_Loaded_1(object sender, RoutedEventArgs e) { try { string connectionString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString; using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); //Merging tables General_Info and Quote_Data SqlCommand cmd = new SqlCommand("SELECT General_Info.Quote_ID, General_Info.Open_Quote, General_Info.Customer_Name," + "General_Info.OEM_Name, General_Info.Qty, General_Info.Quote_Num, General_Info.Fab_Drawing_Num, " + "General_Info.Rfq_Num, General_Info.Rev_Num, Quote_Data.MOA, Quote_Data.MOQ, " + "Quote_Data.Markup, Quote_Data.FOB, Quote_Data.Shipping_Method, Quote_Data.Freight, " + "Quote_Data.Vendor_Price, Unit_Price, Quote_Data.Difference, Quote_Data.Vendor_NRE_ET, " + "Quote_Data.NRE, Quote_Data.ET, Quote_Data.STI_NET, Quote_Data.Mfg_Time, Quote_Data.Delivery_Time, " + "Quote_Data.Mfg_Name, Quote_Data.Mfg_Location " + "FROM General_Info INNER JOIN dbo.Quote_Data ON General_Info.Quote_ID = Quote_Data.Quote_ID", connection); SqlDataAdapter da = new SqlDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt); MainGrid.ItemsSource = dt.DefaultView; mds = new DataSet(); da.Fill(mds, "General_Info"); MainGrid.DataContext = mds.Tables["General_Info"]; } } catch (Exception ex) { MessageBox.Show(ex.Message); } // renaming column names from the database so they are easier to read in the datagrid MainGrid.Columns[0].Header = "#"; MainGrid.Columns[1].Header = "Date"; MainGrid.Columns[2].Header = "Customer"; MainGrid.Columns[3].Header = "OEM"; MainGrid.Columns[4].Header = "Qty"; MainGrid.Columns[5].Header = "Quote Number"; MainGrid.Columns[6].Header = "Fab Drawing Num"; MainGrid.Columns[7].Header = "RFQ Number"; MainGrid.Columns[8].Header = "Rev Number"; MainGrid.Columns[9].Header = "MOA"; MainGrid.Columns[10].Header = "MOQ"; MainGrid.Columns[11].Header = "Markup"; MainGrid.Columns[12].Header = "FOB"; MainGrid.Columns[13].Header = "Shipping"; MainGrid.Columns[14].Header = "Freight"; MainGrid.Columns[15].Header = "Vendor Price"; MainGrid.Columns[16].Header = "Unit Price"; MainGrid.Columns[17].Header = "Difference"; MainGrid.Columns[18].Header = "Vendor NRE/ET"; MainGrid.Columns[19].Header = "NRE"; MainGrid.Columns[20].Header = "ET"; MainGrid.Columns[21].Header = "STINET"; MainGrid.Columns[22].Header = "Mfg. Time"; MainGrid.Columns[23].Header = "Delivery Time"; MainGrid.Columns[24].Header = "Manufacturer"; MainGrid.Columns[25].Header = "Mfg. Location"; } private void submitQuotebtn_Click(object sender, RoutedEventArgs e) { CustomerData newQuote = new CustomerData(); int quantity; quantity = Convert.ToInt32(quantityTxt.Text); string theDate = System.DateTime.Today.Date.ToString("d"); newQuote.OpenQuote = theDate; newQuote.CustomerName = customerNameTxt.Text; newQuote.OEMName = oemNameTxt.Text; newQuote.Qty = quantity; newQuote.QuoteNumber = quoteNumberTxt.Text; newQuote.FdNumber = fabDrawingNumberTxt.Text; newQuote.RfqNumber = rfqNumberTxt.Text; newQuote.RevNumber = revNumberTxt.Text; try { string insertConString = Sqtm.Properties.Settings.Default.SqtmDbConnectionString; using (SqlConnection insertConnection = new SqlConnection(insertConString)) { insertConnection.Open(); SqlDataAdapter adapter = new SqlDataAdapter(Sqtm.Properties.Settings.Default.SqtmDbConnectionString, insertConnection); SqlCommand updateCmd = new SqlCommand("UPDATE General_Info " + "Quote_ID = @Quote_ID, " + "Open_Quote = @Open_Quote, " + "OEM_Name = @OEM_Name, " + "Qty = @Qty, " + "Quote_Num = @Quote_Num, " + "Fab_Drawing_Num = @Fab_Drawing_Num, " + "Rfq_Num = @Rfq_Num, " + "Rev_Num = @Rev_Num " + "WHERE Quote_ID = @Quote_ID"); updateCmd.Connection = insertConnection; System.Data.SqlClient.SqlParameterCollection param = updateCmd.Parameters; // // Add new SqlParameters to the command. // param.AddWithValue("Open_Quote", newQuote.OpenQuote); param.AddWithValue("Customer_Name", newQuote.CustomerName); param.AddWithValue("OEM_Name", newQuote.OEMName); param.AddWithValue("Qty", newQuote.Qty); param.AddWithValue("Quote_Num", newQuote.QuoteNumber); param.AddWithValue("Fab_Drawing_Num", newQuote.FdNumber); param.AddWithValue("Rfq_Num", newQuote.RfqNumber); param.AddWithValue("Rev_Num", newQuote.RevNumber); adapter.UpdateCommand = updateCmd; adapter.Update(mds.Tables[0]); mds.AcceptChanges(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } Thanks in advance to anyone who can help, I really appreciate it, Andrew

  Read the article

• MVVM - implementing 'IsDirty' functionality to a ModelView in order to save data

  - by Brendan

  Hi, Being new to WPF & MVVM I struggling with some basic functionality. Let me first explain what I am after, and then attach some example code... I have a screen showing a list of users, and I display the details of the selected user on the right-hand side with editable textboxes. I then have a Save button which is DataBound, but I would only like this button to display when data has actually changed. ie - I need to check for "dirty data". I have a fully MVVM example in which I have a Model called User: namespace Test.Model { class User { public string UserName { get; set; } public string Surname { get; set; } public string Firstname { get; set; } } } Then, the ViewModel looks like this: using System.Collections.ObjectModel; using System.Collections.Specialized; using System.Windows.Input; using Test.Model; namespace Test.ViewModel { class UserViewModel : ViewModelBase { //Private variables private ObservableCollection<User> _users; RelayCommand _userSave; //Properties public ObservableCollection<User> User { get { if (_users == null) { _users = new ObservableCollection<User>(); //I assume I need this Handler, but I am stuggling to implement it successfully //_users.CollectionChanged += HandleChange; //Populate with users _users.Add(new User {UserName = "Bob", Firstname="Bob", Surname="Smith"}); _users.Add(new User {UserName = "Smob", Firstname="John", Surname="Davy"}); } return _users; } } //Not sure what to do with this?!?! //private void HandleChange(object sender, NotifyCollectionChangedEventArgs e) //{ // if (e.Action == NotifyCollectionChangedAction.Remove) // { // foreach (TestViewModel item in e.NewItems) // { // //Removed items // } // } // else if (e.Action == NotifyCollectionChangedAction.Add) // { // foreach (TestViewModel item in e.NewItems) // { // //Added items // } // } //} //Commands public ICommand UserSave { get { if (_userSave == null) { _userSave = new RelayCommand(param => this.UserSaveExecute(), param => this.UserSaveCanExecute); } return _userSave; } } void UserSaveExecute() { //Here I will call my DataAccess to actually save the data } bool UserSaveCanExecute { get { //This is where I would like to know whether the currently selected item has been edited and is thus "dirty" return false; } } //constructor public UserViewModel() { } } } The "RelayCommand" is just a simple wrapper class, as is the "ViewModelBase". (I'll attach the latter though just for clarity) using System; using System.ComponentModel; namespace Test.ViewModel { public abstract class ViewModelBase : INotifyPropertyChanged, IDisposable { protected ViewModelBase() { } public event PropertyChangedEventHandler PropertyChanged; protected virtual void OnPropertyChanged(string propertyName) { PropertyChangedEventHandler handler = this.PropertyChanged; if (handler != null) { var e = new PropertyChangedEventArgs(propertyName); handler(this, e); } } public void Dispose() { this.OnDispose(); } protected virtual void OnDispose() { } } } Finally - the XAML <Window x:Class="Test.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:Test.ViewModel" Title="MainWindow" Height="350" Width="525"> <Window.DataContext> <vm:UserViewModel/> </Window.DataContext> <Grid> <ListBox Height="238" HorizontalAlignment="Left" Margin="12,12,0,0" Name="listBox1" VerticalAlignment="Top" Width="197" ItemsSource="{Binding Path=User}" IsSynchronizedWithCurrentItem="True"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <TextBlock Text="{Binding Path=Firstname}"/> <TextBlock Text="{Binding Path=Surname}"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <Label Content="Username" Height="28" HorizontalAlignment="Left" Margin="232,16,0,0" Name="label1" VerticalAlignment="Top" /> <TextBox Height="23" HorizontalAlignment="Left" Margin="323,21,0,0" Name="textBox1" VerticalAlignment="Top" Width="120" Text="{Binding Path=User/UserName}" /> <Label Content="Surname" Height="28" HorizontalAlignment="Left" Margin="232,50,0,0" Name="label2" VerticalAlignment="Top" /> <TextBox Height="23" HorizontalAlignment="Left" Margin="323,52,0,0" Name="textBox2" VerticalAlignment="Top" Width="120" Text="{Binding Path=User/Surname}" /> <Label Content="Firstname" Height="28" HorizontalAlignment="Left" Margin="232,84,0,0" Name="label3" VerticalAlignment="Top" /> <TextBox Height="23" HorizontalAlignment="Left" Margin="323,86,0,0" Name="textBox3" VerticalAlignment="Top" Width="120" Text="{Binding Path=User/Firstname}" /> <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="368,159,0,0" Name="button1" VerticalAlignment="Top" Width="75" Command="{Binding Path=UserSave}" /> </Grid> </Window> So basically, when I edit a surname, the Save button should be enabled; and if I undo my edit - well then it should be Disabled again as nothing has changed. I have seen this in many examples, but have not yet found out how to do it. Any help would be much appreciated! Brendan

  Read the article

• How to let maas' cloud-init client select internal mirror?

  - by Michael

  Our maas lan can't access internet and have a internal apt-mirror site 192.168.3.6. I changed mirror set of maas server's snippets/maas_proxy file like: d-i mirror/country string manual d-i mirror/http/hostname string 192.168.3.6 d-i mirror/http/directory string /ubuntu d-i mirror/http/proxy string I deployed two maas node ok. Dashboard show the two node's state are ready. But node's cloud-init client changed the apt's sources.list like this: ## Note, this file is written by cloud-init on first boot of an instance ## modifications made here will not survive a re-bundle. ## if you wish to make changes you can: ## a.) add 'apt_preserve_sources_list: true' to /etc/cloud/cloud.cfg ## or do the same in user-data ... deb http://archive.ubuntu.com/ubuntu precise main deb-src http://archive.ubuntu.com/ubuntu precise main ... Directly use cobbler install node(without maas), the node apt's sources.list like: ... deb http://192.168.3.6/ubuntu precise main deb-src http://192.168.3.6/ubuntu precise main ... My question is: How to set user-data in maas? So that I can set cloud-init's mirror's url to 192.168.3.6 or prevent cloud-init to change mirror's url. Maas node's file /home/ubuntu/.ssh/authorized_keys is empty. Is it caused by the mirror's setup?

  Read the article

• Repopulating a collection of Backbone forms with previously submitted data

  - by Brian Wheat

  I am able to post my forms to my database and I have stepped through my back end function to check and see that my Get function is returning the same data I submitted. However I am having trouble understanding how to have this data rendered upon visiting the page again. What am I missing? The intention is to be able to create, read, update, or delete (CRUD) some personal contact data for a variable collection of individuals. //Model var PersonItem = Backbone.Model.extend({ url: "/Application/PersonList", idAttribute: "PersonId", schema: { Title: { type: 'Select', options: function (callback) { $.getJSON("/Application/GetTitles/").done(callback); } }, Salutation: { type: 'Select', options: ['Mr.', 'Mrs.', 'Ms.', 'Dr.'] }, FirstName: 'Text', LastName: 'Text', MiddleName: 'Text', NameSuffix: 'Text', StreetAddress: 'Text', City: 'Text', State: { type: 'Select', options: function (callback) { $.getJSON("/Application/GetStates/").done(callback); } }, ZipCode: 'Text', PhoneNumber: 'Text', DateOfBirth: 'Date', } }); Backbone.Form.setTemplates(template, PersonItem); //Collection var PersonList = Backbone.Collection.extend({ model: PersonItem , url: "/Application/PersonList" }); //Views var PersonItemView = Backbone.Form.extend({ tagName: "li", events: { 'click button.delete': 'remove', 'change input': 'change' }, initialize: function (options) { console.log("ItemView init"); PersonItemView.__super__.initialize.call(this, options); _.bindAll(this, 'render', 'remove'); console.log("ItemView set attr = " + options); }, render: function () { PersonItemView.__super__.render.call(this); $('fieldset', this.el).append("<button class=\"delete\" style=\"float: right;\">Delete</button>"); return this; }, change: function (event) { var target = event.target; console.log('changing ' + target.id + ' from: ' + target.defaultValue + ' to: ' + target.value); }, remove: function () { console.log("delete button pressed"); this.model.destroy({ success: function () { alert('person deleted successfully'); } }); return false; } }); var PersonListView = Backbone.View.extend({ el: $("#application_fieldset"), events: { 'click button#add': 'addPerson', 'click button#save': 'save2db' }, initialize: function () { console.log("PersonListView Constructor"); _.bindAll(this, 'render', 'addPerson', 'appendItem', 'save'); this.collection = new PersonList(); this.collection.bind('add', this.appendItem); //this.collection.fetch(); this.collection.add([new PersonItem()]); console.log("collection length = " + this.collection.length); }, render: function () { var self = this; console.log(this.collection.models); $(this.el).append("<button id='add'>Add Person</button>"); $(this.el).append("<button id='save'>Save</button>"); $(this.el).append("<fieldset><legend>Contact</legend><ul id=\"anchor_list\"></ul>"); _(this.collection.models).each(function (item) { self.appendItem(item); }, this); $(this.el).append("</fieldset>"); }, addPerson: function () { console.log("addPerson clicked"); var item = new PersonItem(); this.collection.add(item); }, appendItem: function (item) { var itemView = new PersonItemView({ model: item }); $('#anchor_list', this.el).append(itemView.render().el); }, save2db: function () { var self = this; console.log("PersonListView save"); _(this.collection.models).each(function (item) { console.log("item = " + item.toJSON()); var cid = item.cid; console.log("item.set"); item.set({ Title: $('#' + cid + '_Title').val(), Salutation: $('#' + cid + '_Salutation').val(), FirstName: $('#' + cid + '_FirstName').val(), LastName: $('#' + cid + '_LastName').val(), MiddleName: $('#' + cid + '_MiddleName').val(), NameSuffix: $('#' + cid + '_NameSuffix').val(), StreetAddress: $('#' + cid + '_StreetAddress').val(), City: $('#' + cid + '_City').val(), State: $('#' + cid + '_State').val(), ZipCode: $('#' + cid + '_ZipCode').val(), PhoneNumber: $('#' + cid + '_PhoneNumber').val(), DateOfBirth: $('#' + cid + '_DateOfBirth').find('input').val() }); if (item.isNew()) { console.log("item.isNew"); self.collection.create(item); } else { console.log("!item.isNew"); item.save(); } }); return false; } }); var personList = new PersonList(); var view = new PersonListView({ collection: personList }); personList.fetch({ success: function () { $("#application_fieldset").append(view.render()); } });

  Read the article

• Self-relation messes up contents in fetching

  - by holographix

  Hi folks, I'm dealing with an annoying problem in core data I've got a table named Character, which is made as follows I'm filling the table in various steps: 1) fill the attributes of the table 2) fill the Character Relation (charRel) FYI charRel is defined as follows I'm feeding the contents by pulling the data from an xml, the feeding code is this curStr = [[NSMutableString stringWithString:[curStr stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]] retain]; NSLog(@"Parsing relation within these keys %@, in order to get'em associated",curStr); NSArray *chunks = [curStr componentsSeparatedByString: @","]; for( NSString *relId in chunks ) { NSLog(@"Associating %@ with id %@",[currentCharacter valueForKey:@"character_id"], relId); NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"character_id == %@", relId]; [request setEntity:[NSEntityDescription entityForName:@"Character" inManagedObjectContext:[self managedObjectContext] ]]; [request setPredicate:predicate]; NSerror *error = nil; NSArray *results = [[self managedObjectContext] executeFetchRequest:request error:&error]; // error handling code if(error != nil) { NSLog(@"[SYMBOL CORRELATION]: retrieving correlated symbol error: %@", [error localizedDescription]); } else if([results count] > 0) { Character *relatedChar = [results objectAtIndex:0]; // grab the first result in the stack, could be done better! [currentCharacter addCharRelObject:relatedChar]; //VICE VERSA RELATIONS NSArray *charRels = [relatedChar valueForKey:@"charRel"]; BOOL alreadyRelated = NO; for(Character *charRel in charRels) { if([[charRel valueForKey:@"character_id"] isEqual:[currentCharacter valueForKey:@"character_id"]]) { alreadyRelated = YES; break; } } if(!alreadyRelated) { NSLog(@"\n\t\trelating %@ with %@", [relatedChar valueForKey:@"character_id"], [currentCharacter valueForKey:@"character_id"]); [relatedChar addCharRelObject:currentCharacter]; } } else { NSLog(@"[SYMBOL CORRELATION]: related symbol was not found! ##SKIPPING-->"); } [request release]; } NSLog(@"\t\t### TOTAL OF REALTIONS FOR ID %@: %d\n%@", [currentCharacter valueForKey:@"character_id"], [[currentCharacter valueForKey:@"charRel"] count], currentCharacter); error = nil; /* SAVE THE CONTEXT */ if (![managedObjectContext save:&error]) { NSLog(@"Whoops, couldn't save the symbol record: %@", [error localizedDescription]); NSArray* detailedErrors = [[error userInfo] objectForKey:NSDetailedErrorsKey]; if(detailedErrors != nil && [detailedErrors count] > 0) { for(NSError* detailedError in detailedErrors) { NSLog(@"\n################\t\tDetailedError: %@\n################", [detailedError userInfo]); } } else { NSLog(@" %@", [error userInfo]); } } at this point when I print out the values of the currentCharacter, everything looks perfect. every relation is in its place. in example in this log we can clearly see that this element has got 3 items in charRel: <Character: 0x5593af0> (entity: Character; id: 0x55938c0 <x-coredata://67288D50-D349-4B19-B7CB-F7AC4671AD61/Character/p86> ; data: { catRel = "<relationship fault: 0x9a29db0 'catRel'>"; charRel = ( "0x9a1f870 <x-coredata://67288D50-D349-4B19-B7CB-F7AC4671AD61/Character/p74>", "0x9a14bd0 <x-coredata://67288D50-D349-4B19-B7CB-F7AC4671AD61/Character/p109>", "0x558ba00 <x-coredata://67288D50-D349-4B19-B7CB-F7AC4671AD61/Character/p5>" ); "character_id" = 254; examplesRel = "<relationship fault: 0x9a29df0 'examplesRel'>"; meaning = "\n Left"; pinyin = "\n zu\U01d2"; "pronunciation_it" = "\n zu\U01d2"; strokenumber = 5; text = "\n \n <p>The most ancient form of this symbol"; unicodevalue = "\n \U5de6"; }) then when I'm in need of retrieving this item I perform an extraction, like this: // at first I get the single Character record NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSError *error; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"character_id == %@", self.char_id ]; [request setEntity:[NSEntityDescription entityForName:@"Character" inManagedObjectContext:_context ]]; [request setPredicate:predicate]; NSArray *fetchedObjs = [_context executeFetchRequest:request error:&error]; when, for instance, I print out in NSLog the contents of charRel NSArray *correlations = [singleCharacter valueForKey:@"charRel"]; NSLog(@"CHARACTER OBJECT \n%@", correlations); I get this Relationship fault for (<NSRelationshipDescription: 0x5568520>), name charRel, isOptional 1, isTransient 0, entity Character, renamingIdentifier charRel, validation predicates (), warnings (), versionHashModifier (null), destination entity Character, inverseRelationship (null), minCount 1, maxCount 99 on 0x6937f00 hope that I made myself clear. this thing is driving me insane, I've googled all over world, but I couldn't find a solution (and this make me think to as issue related to bad coding somehow :P). thank you in advance guys. k

  Read the article

• Matplotlib plotting non uniform data in 3D surface

  - by Raj Tendulkar

  I have a simple code to plot the points in 3D for Matplotlib as below - from mpl_toolkits.mplot3d import axes3d import matplotlib.pyplot as plt import numpy as np from numpy import genfromtxt import csv fig = plt.figure() ax = fig.add_subplot(111, projection='3d') my_data = genfromtxt('points1.csv', delimiter=',') points1X = my_data[:,0] points1Y = my_data[:,1] points1Z = my_data[:,2] ## I remove the header of the CSV File. points1X = np.delete(points1X, 0) points1Y = np.delete(points1Y, 0) points1Z = np.delete(points1Z, 0) # Convert the array to 1D array points1X = np.reshape(points1X,points1X.size) points1Y = np.reshape(points1Y,points1Y.size) points1Z = np.reshape(points1Z,points1Z.size) my_data = genfromtxt('points2.csv', delimiter=',') points2X = my_data[:,0] points2Y = my_data[:,1] points2Z = my_data[:,2] ## I remove the header of the CSV File. points2X = np.delete(points2X, 0) points2Y = np.delete(points2Y, 0) points2Z = np.delete(points2Z, 0) # Convert the array to 1D array points2X = np.reshape(points2X,points2X.size) points2Y = np.reshape(points2Y,points2Y.size) points2Z = np.reshape(points2Z,points2Z.size) ax.plot(points1X, points1Y, points1Z, 'd', markersize=8, markerfacecolor='red', label='points1') ax.plot(points2X, points2Y, points2Z, 'd', markersize=8, markerfacecolor='blue', label='points2') plt.show() My problem is that I tried to make a decent surface plot out of these data points that I have. I already tried to use ax.plot_surface() function to make it look nice. For this I eliminated some points, and recalculated the matrix kind of input needed by this function. However, the graph I generated was far more difficult to interpret and understand. So there might be 2 possibilities: either I am not using the function correctly, or otherwise, the data I am trying to plot is not good for the surface plot. What I was expecting was 3D graph which would have an effect similar to that we have of 3D pie chart. We see that one piece (that which is extracted out) is part of another piece. I was not expecting it to be exactly same like that, but some kind of effect like that. What I would like to ask is: Do you think it will be possible to make such 3D graph? Is there any way better, I could express my data in 3 dimension? Here are the 2 files - points1.csv Dim1,Dim2,Dim3 3,8,1 3,8,2 3,8,3 3,8,4 3,8,5 3,9,1 3,9,2 3,9,3 3,9,4 3,9,5 3,10,1 3,10,2 3,10,3 3,10,4 3,10,5 3,11,1 3,11,2 3,11,3 3,11,4 3,11,5 3,12,1 3,12,2 3,13,1 3,13,2 3,14,1 3,14,2 3,15,1 3,15,2 3,16,1 3,16,2 3,17,1 3,17,2 3,18,1 3,18,2 4,8,1 4,8,2 4,8,3 4,8,4 4,8,5 4,9,1 4,9,2 4,9,3 4,9,4 4,9,5 4,10,1 4,10,2 4,10,3 4,10,4 4,10,5 4,11,1 4,11,2 4,11,3 4,11,4 4,11,5 4,12,1 4,13,1 4,14,1 4,15,1 4,16,1 4,17,1 4,18,1 5,8,1 5,8,2 5,8,3 5,8,4 5,8,5 5,9,1 5,9,2 5,9,3 5,9,4 5,9,5 5,10,1 5,10,2 5,10,3 5,10,4 5,10,5 5,11,1 5,11,2 5,11,3 5,11,4 5,11,5 5,12,1 5,13,1 5,14,1 5,15,1 5,16,1 5,17,1 5,18,1 6,8,1 6,8,2 6,8,3 6,8,4 6,8,5 6,9,1 6,9,2 6,9,3 6,9,4 6,9,5 6,10,1 6,11,1 6,12,1 6,13,1 6,14,1 6,15,1 6,16,1 6,17,1 6,18,1 7,8,1 7,8,2 7,8,3 7,8,4 7,8,5 7,9,1 7,9,2 7,9,3 7,9,4 7,9,5 and points2.csv Dim1,Dim2,Dim3 3,12,3 3,12,4 3,12,5 3,13,3 3,13,4 3,13,5 3,14,3 3,14,4 3,14,5 3,15,3 3,15,4 3,15,5 3,16,3 3,16,4 3,16,5 3,17,3 3,17,4 3,17,5 3,18,3 3,18,4 3,18,5 4,12,2 4,12,3 4,12,4 4,12,5 4,13,2 4,13,3 4,13,4 4,13,5 4,14,2 4,14,3 4,14,4 4,14,5 4,15,2 4,15,3 4,15,4 4,15,5 4,16,2 4,16,3 4,16,4 4,16,5 4,17,2 4,17,3 4,17,4 4,17,5 4,18,2 4,18,3 4,18,4 4,18,5 5,12,2 5,12,3 5,12,4 5,12,5 5,13,2 5,13,3 5,13,4 5,13,5 5,14,2 5,14,3 5,14,4 5,14,5 5,15,2 5,15,3 5,15,4 5,15,5 5,16,2 5,16,3 5,16,4 5,16,5 5,17,2 5,17,3 5,17,4 5,17,5 5,18,2 5,18,3 5,18,4 5,18,5 6,10,2 6,10,3 6,10,4 6,10,5 6,11,2 6,11,3 6,11,4 6,11,5 6,12,2 6,12,3 6,12,4 6,12,5 6,13,2 6,13,3 6,13,4 6,13,5 6,14,2 6,14,3 6,14,4 6,14,5 6,15,2 6,15,3 6,15,4 6,15,5 6,16,2 6,16,3 6,16,4 6,16,5 6,17,2 6,17,3 6,17,4 6,17,5 6,18,2 6,18,3 6,18,4 6,18,5 7,10,1 7,10,2 7,10,3 7,10,4 7,10,5 7,11,1 7,11,2 7,11,3 7,11,4 7,11,5 7,12,1 7,12,2 7,12,3 7,12,4 7,12,5 7,13,1 7,13,2 7,13,3 7,13,4 7,13,5 7,14,1 7,14,2 7,14,3 7,14,4 7,14,5 7,15,1 7,15,2 7,15,3 7,15,4 7,15,5 7,16,1 7,16,2 7,16,3 7,16,4 7,16,5 7,17,1 7,17,2 7,17,3 7,17,4 7,17,5 7,18,1 7,18,2 7,18,3 7,18,4 7,18,5

  Read the article

• PHP: How to automate building a 100 <UL>/<LI> menuitems, while keeping the Menu Structure File Flat / Simply Managable?

  - by Sam

  Above: current "stupid" menu. (entire ul/li menu for javascript menu system) + (some li lines as page-specific submenu) Hi folks! With passion for automation and elegancy, but limited knowledge/knowhow, im stuck with "my hands in my hair" as we Dutch say, for my current menu system works perfectly, but is a pain in the a*s to update! So, i would appreciate it greatly, if you can suggest how to automate this in php: how to let the php generate the html menu code basing on a flat menu input file with TABS indented. OLD SITUATION <ul> <!-- about 100 of these <li>....</li> lines --> <li><a href="carrot.php"><p class="mnu" style="background-position:0 -820px"><? echo __("carrot juice") ?></p></a></li> <!-- lots of data, with only little bit thats really the menu itself--> </ul a javascript file reads a ul/li structure as input to build menu of format in that ul/li, the items with a hyperlink and sprite-bg position represent webpages, (inside LI) while items without hyperlink and sprite-bg are just headers of that menusection, (inside H6) to highlight the current page in the menu, the javascript menumaker uses an id number. this number corresponds to the consequtive li that is a webpage, skips h6 headers correctly. these h6 headers are only there for when importing sections of the same menu as submenu. non-li headers are not shown in menu, nore counted by the javascript menu for their ID. to know which page should be shown, i have to count from ID 0, the li items till finding the current webpage in the li structure and then manually put it in each webpage! BUT: changing an item in li order, means stupidly re-counting their entire li again! each webpage has an icon (= sprite bg-position numer), which is also used in the webpage. INTENDED RESULT I dream of, once setting what the current webpage is (e.g carrot.php) the menu system automatically "finds" and "counts" the li's and returns the id nr (for proper highlight of main menu); generates the entire menu html, and depending on which headings are set for submenu, (e.g. meals, drinks) generates those submenu (entire section below each given header); ginally adds h5 highlight inside the li of that submenu item. For the menu, i wish an easily readable, simple plain txt menu that is indented with tabs, (each tab is one depth for example) and further tabs follow for url and sprite position of icon. MY DREAM MENU-MANAGEMENT FILE |>TAB SEPARATED/INDENTED FLATMENU FILE |MUST BE CALCULATED BY PHP: |>MENUTEXT============URL=============SPRITE=====|ID===TAG================== |>about "#" -520 |00 li |> INFORMATION |—— h6 |> physical state "physical.php" -920 |01 li |> mental health "mental.php" -10 |02 li |> |>apetite "#" -1290 |03 li |> meals "#" -600 |04 li |> COLD MEAL |—— h6 |> egg salade "salad.php" -1040 |05 li |> salmon fish "salmon.php" -540 |06 li |> HOT MEAL |—— h6 |> spare ribs "spareribs.php" -120 |07 li |> di macaroni "macaroni.php" -870 |08 li |> |> drinks "#" -230 |09 li |> JUCY DRINK |—— h6 |> carrot juice "carrot.php" -820 |10 li |> mango hive "mango.php" -270 |11 li DESIRED CHRONOLOGY php outputs the entire ul/li html so the javascript can show the menu: webpage items go inside li tags, and header items go inside h6 tags, e.g. <h6>JUCY DRINK</h6> Each website page has a url filename [eg: salad.php]. Based on this given fact, the php menu generator detects the pagename, gives the IDnr of the position of that page according to the li-item nr and sets variable for javascript to highlight current menu item. the menu items below the specified headers are loaded as submenu in which the current page.php is wrapped inside h5 to highlight current page in submenu: e.g. (<li><h5><a href="carrot.php"><p>..etc..</p></h5></li> Question Which methods / steps / (chronological)ways are there for doing this? I am no good in php programming, but am learning it so please dont write any code without a line of comment why I should use that method etc. Where do I start? If I am unclear in my question, please ask. Thanks. Much appreciated!! Concrete Task List from the provided Comments/Answers, sofar: (RobertB) First, get some PHP code working that can read through a tab-delimited file and put the data into an appropriate data structure. NOW WORKING AT THIS

  Read the article

• Custom Section Name Crashing NSFetchedResultsController

  - by Mike H.

  I have a managed object with a dueDate attribute. Instead of displaying using some ugly date string as the section headers of my UITableView I created a transient attribute called "category" and defined it like so: - (NSString*)category { [self willAccessValueForKey:@"category"]; NSString* categoryName; if ([self isOverdue]) { categoryName = @"Overdue"; } else if ([self.finishedDate != nil]) { categoryName = @"Done"; } else { categoryName = @"In Progress"; } [self didAccessValueForKey:@"category"]; return categoryName; } Here is the NSFetchedResultsController set up: NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Task" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; NSMutableArray* descriptors = [[NSMutableArray alloc] init]; NSSortDescriptor *dueDateDescriptor = [[NSSortDescriptor alloc] initWithKey:@"dueDate" ascending:YES]; [descriptors addObject:dueDateDescriptor]; [dueDateDescriptor release]; [fetchRequest setSortDescriptors:descriptors]; fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:@"category" cacheName:@"Root"]; The table initially displays fine, showing the unfinished items whose dueDate has not passed in a section titled "In Progress". Now, the user can tap a row in the table view which pushes a new details view onto the navigation stack. In this new view the user can tap a button to indicate that the item is now "Done". Here is the handler for the button (self.task is the managed object): - (void)taskDoneButtonTapped { self.task.finishedDate = [NSDate date]; } As soon as the value of the "finishedDate" attribute changes I'm hit with this exception: 2010-03-18 23:29:52.476 MyApp[1637:207] Serious application error. Exception was caught during Core Data change processing: no section named 'Done' found with userInfo (null) 2010-03-18 23:29:52.477 MyApp[1637:207] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'no section named 'Done' found' I've managed to figure out that the UITableView that is currently hidden by the new details view is trying to update its rows and sections because the NSFetchedResultsController was notified that something changed in the data set. Here's my table update code (copied from either the Core Data Recipes sample or the CoreBooks sample -- I can't remember which): - (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { [self.tableView beginUpdates]; } - (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath { switch(type) { case NSFetchedResultsChangeInsert: [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeDelete: [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeUpdate: [self configureCell:[self.tableView cellForRowAtIndexPath:indexPath] atIndexPath:indexPath]; break; case NSFetchedResultsChangeMove: [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade]; // Reloading the section inserts a new row and ensures that titles are updated appropriately. [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:newIndexPath.section] withRowAnimation:UITableViewRowAnimationFade]; break; } } - (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type { switch(type) { case NSFetchedResultsChangeInsert: [self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; break; case NSFetchedResultsChangeDelete: [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade]; break; } } - (void)controllerDidChangeContent:(NSFetchedResultsController *)controller { [self.tableView endUpdates]; } I put breakpoints in each of these functions and found that only controllerWillChange is called. The exception is thrown before either controller:didChangeObject:atIndexPath:forChangeType:newIndex or controller:didChangeSection:atIndex:forChangeType are called. At this point I'm stuck. If I change my sectionNameKeyPath to just "dueDate" then everything works fine. I think that's because the dueDate attribute never changes whereas the category will be different when read back after the finishedDate attribute changes. Please help! UPDATE: Here is my UITableViewDataSource code: - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return [[self.fetchedResultsController sections] count]; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { id <NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections] objectAtIndex:section]; return [sectionInfo numberOfObjects]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } [self configureCell:cell atIndexPath:indexPath]; return cell; } - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { id <NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections] objectAtIndex:section]; return [sectionInfo name]; }

  Read the article

• On screen orientation loads again data with Async Task

  - by Zookey

  I make Android application with master/detail pattern. So I have ListActivity class which is FragmentActivity and ListFragment class which is Fragment It all works perfect, but when I change screen orientation it calls again AsyncTask and reload all data. Here is the code for ListActivity class where I handle all logic: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_list); getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); getActionBar().setTitle("Dnevni horoskop"); if(findViewById(R.id.details_container) != null){ //Tablet mTwoPane = true; //Fragment stuff FragmentManager fm = getSupportFragmentManager(); FragmentTransaction ft = fm.beginTransaction(); DetailsFragment df = new DetailsFragment(); ft.add(R.id.details_container, df); ft.commit(); } pb = (ProgressBar) findViewById(R.id.pb_list); tvNoConnection = (TextView) findViewById(R.id.tv_no_internet); ivNoConnection = (ImageView) findViewById(R.id.iv_no_connection); list = (GridView) findViewById(R.id.gv_list); if(mTwoPane == true){ list.setNumColumns(1); //list.setPadding(16,16,16,16); } adapter = new CustomListAdapter(); list.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) { pos = position; if(mTwoPane == false){ Bundle bundle = new Bundle(); bundle.putSerializable("zodiac", zodiacFeed); Intent i = new Intent(getApplicationContext(), DetailsActivity.class); i.putExtra("position", position); i.putExtras(bundle); startActivity(i); overridePendingTransition(R.anim.right_in, R.anim.right_out); } else if(mTwoPane == true){ DetailsFragment fragment = (DetailsFragment) getSupportFragmentManager().findFragmentById(R.id.details_container); fragment.setHoroscopeText(zodiacFeed.getItem(position).getText()); fragment.setLargeImage(zodiacFeed.getItem(position).getLargeImage()); fragment.setSign("Dnevni horoskop - "+zodiacFeed.getItem(position).getName()); fragment.setSignDuration(zodiacFeed.getItem(position).getDuration()); // inflate menu from xml /*if(menu != null){ MenuItem item = menu.findItem(R.id.share); Toast.makeText(getApplicationContext(), item.getTitle().toString(), Toast.LENGTH_SHORT).show(); }*/ } } }); if(!Utils.isConnected(getApplicationContext())){ pb.setVisibility(View.GONE); tvNoConnection.setVisibility(View.VISIBLE); ivNoConnection.setVisibility(View.VISIBLE); } //Calling AsyncTask to load data Log.d("TAG", "loading"); HoroscopeAsyncTask task = new HoroscopeAsyncTask(pb); task.execute(); } @Override public void onConfigurationChanged(Configuration newConfig) { // TODO Auto-generated method stub super.onConfigurationChanged(newConfig); } class CustomListAdapter extends BaseAdapter { private LayoutInflater layoutInflater; public CustomListAdapter() { layoutInflater = (LayoutInflater) getBaseContext().getSystemService( Context.LAYOUT_INFLATER_SERVICE); } public int getCount() { // TODO Auto-generated method stub // Set the total list item count return names.length; } public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } public long getItemId(int arg0) { // TODO Auto-generated method stub return 0; } public View getView(int position, View convertView, ViewGroup parent) { // Inflate the item layout and set the views View listItem = convertView; int pos = position; zodiacItem = zodiacList.get(pos); if (listItem == null && mTwoPane == false) { listItem = layoutInflater.inflate(R.layout.list_item, null); } else if(mTwoPane == true){ listItem = layoutInflater.inflate(R.layout.tablet_list_item, null); } // Initialize the views in the layout ImageView iv = (ImageView) listItem.findViewById(R.id.iv_horoscope); iv.setScaleType(ScaleType.CENTER_CROP); TextView tvName = (TextView) listItem.findViewById(R.id.tv_zodiac_name); TextView tvDuration = (TextView) listItem.findViewById(R.id.tv_duration); iv.setImageResource(zodiacItem.getImage()); tvName.setText(zodiacItem.getName()); tvDuration.setText(zodiacItem.getDuration()); Animation animation = AnimationUtils.loadAnimation(getBaseContext(), R.anim.push_up); listItem.startAnimation(animation); animation = null; return listItem; } } private void getHoroscope() { String urlString = "http://balkanandroid.com/download/horoskop/examples/dnevnihoroskop.php"; try { HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(urlString); HttpResponse response = client.execute(post); resEntity = response.getEntity(); response_str = EntityUtils.toString(resEntity); if (resEntity != null) { Log.i("RESPONSE", response_str); runOnUiThread(new Runnable() { public void run() { try { Log.d("TAG", "Response from server : n " + response_str); } catch (Exception e) { e.printStackTrace(); } } }); } } catch (Exception ex) { Log.e("TAG", "error: " + ex.getMessage(), ex); } } private class HoroscopeAsyncTask extends AsyncTask<String, Void, Void> { public HoroscopeAsyncTask(ProgressBar pb1){ pb = pb1; } @Override protected void onPreExecute() { pb.setVisibility(View.VISIBLE); super.onPreExecute(); } @Override protected Void doInBackground(String... params) { getHoroscope(); try { Log.d("TAG", "test u try"); JSONObject jsonObject = new JSONObject(response_str); JSONArray jsonArray = jsonObject.getJSONArray("horoscope"); for(int i=0;i<jsonArray.length();i++){ Log.d("TAG", "test u for"); JSONObject horoscopeObj = jsonArray.getJSONObject(i); String horoscopeSign = horoscopeObj.getString("name_sign"); String horoscopeText = horoscopeObj.getString("txt_hrs"); zodiacItem = new ZodiacItem(horoscopeSign, horoscopeText, duration[i], images[i], largeImages[i]); zodiacList.add(zodiacItem); zodiacFeed.addItem(zodiacItem); //Treba u POJO klasu ubaciti sve. Log.d("TAG", "ZNAK: "+zodiacItem.getName()+" HOROSKOP: "+zodiacItem.getText()); } } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); Log.e("TAG", "error: " + e.getMessage(), e); } return null; } @Override protected void onPostExecute(Void result) { pb.setVisibility(View.GONE); list.setAdapter(adapter); adapter.notifyDataSetChanged(); super.onPostExecute(result); } } Here is the code for ListFragment class: public class ListFragment extends Fragment { @Override public void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub // Retain this fragment across configuration changes. setRetainInstance(true); super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // TODO Auto-generated method stub View view = inflater.inflate(R.layout.fragment_list, container, false); return view; } }

  Read the article

• Strategy for clients to retrieve real-time log from HTTP server

  - by Jerry Dodge

  I have an HTTP Server Service application which has its own logging mechanism. It's written in Delphi. I would like to provide a way for multiple clients to connect to this service and get a real-time update of the log. The log in the service moves rather fast, there's a lot of things to log. There may be up to 50 messages within 1 second at times. The existing log which is already implemented is not saved, it's only kept in the memory of the server service - where I will need to distribute it to any client which needs it. Once all clients have a log message, it should be deleted. I intend to use HTTP to "ask" the server for the log, and respond with an XML packet. The connections are not keep-alive. The only problem is, the server should only send the client those log records which it needs, not everything. I have no way of the server pushing the log to the clients in real-time, so each client needs to repeatedly ask the server for the latest log records. This HTTP Server is very lightweight, and there is no session management. There isn't even any type of authentication. The only way I see is for a client to register its self on the server, and whenever a log is issued on the server, it creates a copy of the log for each client, where each client has a log queue (string list). However, suppose there are 100 clients connected and expecting to receive this log. That means the server must create 100 copies of each log, add this log to the end of each client log queue, and wait for the client to request it. At that point, when the server replies with the XML log, it should flush (delete) whatever's in the queue. I'm worried however that this could cause memory issues. Each client log queue might get 100 log messages before the client requests the latest logs. How should I go about doing this in the fastest way possible without hindering the performance of the server? I'm trying to avoid having to create a copy of each log for each client.

  Read the article

• Deserializing JSON data to C# using JSON.NET

  - by Derek Utah

  I'm relatively new to working with C# and JSON data and am seeking guidance. I'm using C# 3.0, with .NET3.5SP1, and JSON.NET 3.5r6. I have a defined C# class that I need to populate from a JSON structure. However, not every JSON structure for an entry that is retrieved from the web service contains all possible attributes that are defined within the C# class. I've been being doing what seems to be the wrong, hard way and just picking out each value one by one from the JObject and transforming the string into the desired class property. JsonSerializer serializer = new JsonSerializer(); var o = (JObject)serializer.Deserialize(myjsondata); MyAccount.EmployeeID = (string)o["employeeid"][0]; What is the best way to deserialize a JSON structure into the C# class and handling possible missing data from the JSON source? My class is defined as: public class MyAccount { [JsonProperty(PropertyName = "username")] public string UserID { get; set; } [JsonProperty(PropertyName = "givenname")] public string GivenName { get; set; } [JsonProperty(PropertyName = "sn")] public string Surname { get; set; } [JsonProperty(PropertyName = "passwordexpired")] public DateTime PasswordExpire { get; set; } [JsonProperty(PropertyName = "primaryaffiliation")] public string PrimaryAffiliation { get; set; } [JsonProperty(PropertyName = "affiliation")] public string[] Affiliation { get; set; } [JsonProperty(PropertyName = "affiliationstatus")] public string AffiliationStatus { get; set; } [JsonProperty(PropertyName = "affiliationmodifytimestamp")] public DateTime AffiliationLastModified { get; set; } [JsonProperty(PropertyName = "employeeid")] public string EmployeeID { get; set; } [JsonProperty(PropertyName = "accountstatus")] public string AccountStatus { get; set; } [JsonProperty(PropertyName = "accountstatusexpiration")] public DateTime AccountStatusExpiration { get; set; } [JsonProperty(PropertyName = "accountstatusexpmaxdate")] public DateTime AccountStatusExpirationMaxDate { get; set; } [JsonProperty(PropertyName = "accountstatusmodifytimestamp")] public DateTime AccountStatusModified { get; set; } [JsonProperty(PropertyName = "accountstatusexpnotice")] public string AccountStatusExpNotice { get; set; } [JsonProperty(PropertyName = "accountstatusmodifiedby")] public Dictionary<DateTime, string> AccountStatusModifiedBy { get; set; } [JsonProperty(PropertyName = "entrycreatedate")] public DateTime EntryCreatedate { get; set; } [JsonProperty(PropertyName = "entrydeactivationdate")] public DateTime EntryDeactivationDate { get; set; } } And a sample of the JSON to parse is: { "givenname": [ "Robert" ], "passwordexpired": "20091031041550Z", "accountstatus": [ "active" ], "accountstatusexpiration": [ "20100612000000Z" ], "accountstatusexpmaxdate": [ "20110410000000Z" ], "accountstatusmodifiedby": { "20100214173242Z": "tdecker", "20100304003242Z": "jsmith", "20100324103242Z": "jsmith", "20100325000005Z": "rjones", "20100326210634Z": "jsmith", "20100326211130Z": "jsmith" }, "accountstatusmodifytimestamp": [ "20100312001213Z" ], "affiliation": [ "Employee", "Contractor", "Staff" ], "affiliationmodifytimestamp": [ "20100312001213Z" ], "affiliationstatus": [ "detached" ], "entrycreatedate": [ "20000922072747Z" ], "username": [ "rjohnson" ], "primaryaffiliation": [ "Staff" ], "employeeid": [ "999777666" ], "sn": [ "Johnson" ] }

  Read the article

• NSFetchedResultsController fetch request - updating predicate and UITableView

  - by Macatomy

  In my iPhone Core Data app I have it configured in a master-detail view setup. The master view is a UITableView that lists objects of the List entity. The List entity has a to-many relationship with the Task entity (called "tasks"), and the Task entity has an inverse to-one relationship with List called "list". When a List object is selected in the master view, I want the detail view (another UITableView) to list the Task objects that correspond to that List object. What I've done so far is this: In the detail view controller I've declared a property for a List object: @property (nonatomic, retain) List *list; Then in the master view controller I use this table view delegate method to set the list property of the detail view controller when a list is selected: - (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { NSManagedObject *selectedObject = [[self fetchedResultsController] objectAtIndexPath:indexPath]; detailViewController.list = (List*)selectedObject; } Then, I've overriden the setter for the list property in the detail view controller like this: - (void)setList:(List*)newList { if (list != newList) { [list release]; list = [newList retain]; NSPredicate *newPredicate = [NSPredicate predicateWithFormat:@"(list == %@)", list]; [NSFetchedResultsController deleteCacheWithName:@"Root"]; [[[self fetchedResultsController] fetchRequest] setPredicate:newPredicate]; NSError *error = nil; if (![[self fetchedResultsController] performFetch:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } } } What I'm doing here is setting a predicate on the fetched results to filter out the objects so that I only get the ones that belong to the selected List object. The fetchedResultsController getter for the detail view controller looks like this: - (NSFetchedResultsController *)fetchedResultsController { if (fetchedResultsController == nil) { NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Task" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"FALSEPREDICATE"]; [fetchRequest setPredicate:predicate]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; aFetchedResultsController.delegate = self; self.fetchedResultsController = aFetchedResultsController; [aFetchedResultsController release]; [fetchRequest release]; [sortDescriptor release]; [sortDescriptors release]; } return fetchedResultsController; } Its almost unchanged from the default in the Core Data project template, the change I made is to add a predicate that always returns false, the reason being that when there is no List selected I don't want any items to be displayed in the detail view (if a list is selected the predicate is changed in the setter for the list property). However, when I select a list item, nothing really happens. Nothing in the table view changes, it stays empty. I'm sure my logic is flawed in several places, advice is appreciated Thanks

  Read the article

• Upload files with HTTPWebrequest (multipart/form-data)

  - by dr. evil

  Is there any class, library or some piece of code which will help me to upload files with HTTPWebrequest? Edit 2: I do not want to upload to a WebDAV folder or something like that. I want to simulate a browser, so just like you upload your avatar to a forum or upload a file via form in a web application. Upload to a form which uses a multipart/form-data. Edit: WebClient is not cover my requirements, so I'm looking for a solution with HTTPWebrequest.

  Read the article

• [R] Merge multiple data frames - Error in match.names(clabs, names(xi)) : names do not match previou

  - by Jasmine

  Hi all- I'm getting some really bizarre stuff while trying to merge multiple data frames. Help! I need to merge a bunch of data frames by the columns 'RID' and 'VISCODE'. Here is an example of what it looks like: d1 = data.frame(ID = sample(9, 1:100), RID = c(2, 5, 7, 9, 12), VISCODE = rep('bl', 5), value1 = rep(16, 5)) d2 = data.frame(ID = sample(9, 1:100), RID = c(2, 2, 2, 5, 5, 5, 7, 7, 7), VISCODE = rep(c('bl', 'm06', 'm12'), 3), value2 = rep(100, 9)) d3 = data.frame(ID = sample(9, 1:100), RID = c(2, 2, 2, 5, 5, 5, 9,9,9), VISCODE = rep(c('bl', 'm06', 'm12'), 3), value3 = rep("a", 9), values3.5 = rep("c", 9)) d4 = data.frame(ID =sample(8, 1:100), RID = c(2, 2, 5, 5, 5, 7, 7, 7, 9), VISCODE = c(c('bl', 'm12'), rep(c('bl', 'm06', 'm12'), 2), 'bl'), value4 = rep("b", 9)) dataList = list(d1, d2, d3, d4) I looked at the answers to the question titled "Merge several data.frames into one data.frame with a loop." I used the reduce method suggested there as well as a loop I wrote: try1 = mymerge(dataList) try2 <- Reduce(function(x, y) merge(x, y, all= TRUE, by=c("RID", "VISCODE")), dataList, accumulate=F) where dataList is a list of data frames and mymerge is: mymerge = function(dataList){ L = length(dataList) mdat = dataList[[1]] for(i in 2:L){ mdat = merge(mdat, dataList[[i]], by.x = c("RID", "VISCODE"), by.y = c("RID", "VISCODE"), all = TRUE) } mdat } For my test data and subsets of my real data, both of these work fine and produce exactly the same results. However, when I use larger subsets of my data, they both break down and give me the following error: Error in match.names(clabs, names(xi)) : names do not match previous names. The really weird thing is that using this works: dataList = list(demog[1:50,], neurobat[1:50,], apoe[1:50,], mmse[1:50,], faq[1:47, ]) And using this fails: dataList = list(demog[1:50,], neurobat[1:50,], apoe[1:50,], mmse[1:50,], faq[1:48, ]) As far as I can tell, there is nothing special about row 48 of faq. Likewise, using this works: dataList = list(demog[1:50,], neurobat[1:50,], apoe[1:50,], mmse[1:50,], pdx[1:47, ]) And using this fails: dataList = list(demog[1:50,], neurobat[1:50,], apoe[1:50,], mmse[1:50,], pdx[1:48, ]) Row 48 in faq and row 48 in pdx have the same values for RID and VISCODE, the same value for EXAMDATE (something I'm not matching on) and different values for ID (another thing I'm not matching on). Besides the matching RID and VISCODE, I see anything special about them. They don't share any other variable names. This same scenario occurs elsewhere in the data without problems. To add icing on the complication cake, this doesn't even work: dataList = list(demog[1:50,], neurobat[1:50,], apoe[1:50,], mmse[1:50,], faq[1:48, 2:3]) where columns 2 and 3 are "RID" and "VISCODE". 48 isn't even the magic number because this works: dataList = list(demog[1:500,], neurobat[1:500,], apoe[1:500,], mmse[1:457,]) while using mmse[1:458, ] fails. I can't seem to come up with test data that causes the problem. Has anyone had this problem before? Any better ideas on how to merge? Thanks for your help! Jasmine

  Read the article

• How to achieve "Blendability" when using DataServiceCollection in my ViewModel

  - by andlju

  I'm looking at using oData endpoints in my Silverlight client. Naturally, I'm doing MVVM and I want the project to be nice and "Blendable" (i.e. I must be able to cleanly use static data instead of the oData endpoints when in design mode.) Now to the problem. I'd like to use the DataServiceCollection in my ViewModels, since it allows for nice bindable collections without having to worry too much with BeginExecute/EndExecute etc. Now, let's look at some code. My Model interface looks like this: public interface ITasksModel { IQueryable<Task> Tasks { get; } } The oData endpoint implementation of that interface: public class TasksModel : ITasksModel { Uri svcUri = new Uri("http://localhost:2404/Services/TasksDataService.svc"); TaskModelContainer _container; public TasksModel() { _container = new TaskModelContainer(svcUri); } public IQueryable<Task> Tasks { get { return _container.TaskSet; } } } And the "Blendable" design-time implementation: public class DesignModeTasksModel : ITasksModel { private List<Task> _taskCollection = new List<Task>(); public DesignModeTasksModel() { _taskCollection.Add(new Task() { Id = 1, Title = "Task 1" }); _taskCollection.Add(new Task() { Id = 2, Title = "Task 2" }); _taskCollection.Add(new Task() { Id = 3, Title = "Task 3" }); } public IQueryable<Task> Tasks { get { return _taskCollection.AsQueryable(); } } } However, when I try to use this last one in my ViewModel constructor: public TaskListViewModel(ITasksModel tasksModel) { _tasksModel = tasksModel; _tasks = new DataServiceCollection<Task>(); _tasks.LoadAsync(_tasksModel.Tasks); } I get an exception: Only a typed DataServiceQuery object can be supplied when calling the LoadAsync method on DataServiceCollection. First of all, if this is the case, why not make the input parameter of LoadAsync be typed as DataServiceQuery? Second, what is the "proper" way of doing what I'm trying to accomplish?

  Read the article

• Decimal data type in Visual Basic 6.0

  - by Appu

  I need to do calculations (division or multiplication) with very large numbers. Currently I am using Double and getting the value round off problems. I can do the same calculations accurately on C# using Decimal type. I am looking for a method to do accurate calculations in VB6.0 and I couldn't find a Decimal type in VB6.0. What is the data type used for doing arithmetic calculations with large values and without getting floating point round off problems? Thanks

  Read the article

• How to use GWT 2.1 Data Presentation Widgets

  - by Caffeine Coma

  At the 2010 Google IO it was announced that GWT 2.1 would include new Data Presentation Widgets. 2.1M is available for download, and presumably the widgets are included, but no documentation has yet surfaced. Is there a short tutorial or example for how to use them? I've seen a rumor that CellList and CellTable are the classes in question. The Javadoc for them is riddled with lots of TODOs, so quite a bit is still missing in terms of usage.

  Read the article

• Custom Line Chart Data Co-ordinates using Adobe Flex

  - by Anoop

  Hi All, I want to draw a line chart, in which the co-ordinates should be rendered as an image like a triangle or diamond, rather than showing the default circle. By co-ordinates, i mean the places where the data tip occurs. How can i achieve this? Regards,PK

  Read the article

• How to get rid of "Uncaught SoapFault exception: [Client] looks like we got no XML document in..." e

  - by Eedoh

  Hello I'm trying to develop business logic for a dynamic site using nusoap on server side (because I need wsdls, and PHP SOAP extension can't generate wsdls), and PHP SOAP extenstion on client side. However, I can't get even login and getRole functions right. When i try to invoke client, I get following message Uncaught SoapFault exception: [Client] looks like we got no XML document in [some paths]... Wsdl does exist on server side, and client does read it (when I put wrong url for wsdl, I get an error). Can anyone help??

  Read the article

• Ecommerce::Shopping cart::Where should i store shopping cart data in session or in database

  - by Yosef

  Where should I store shopping cart data in session or in database? (I think in amazon.com shopping cart after user logout and after month login again his orders that he choose in shopping cart saved) Thanks, Yosef

  Read the article

• Saving Python Complex Data Types to Amazon S3

  - by JCR000

  Can Python class data be saved to S3 without marshalling? I am trying to cut down of I/O operations until necessary.

  Read the article

< Previous Page | 411 412 413 414 415 416 417 418 419 420 421 422  | Next Page >