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  • How do I get results from a link query in the order of IDs that I provide?

    - by Keltex
    I'm looking to get query results back from Linq in the order that I pass IDs to the query. So it would look something like this: var IDs = new int [] { 5, 20, 10 } var items = from mytable in db.MyTable where IDs.Contains(mytable.mytableID) orderby // not sure what to do here select mytable; I'm hoping to get items in the order of IDs (5, 20, 10). (Note this is similar to this question, but I would like to do it in Linq instead of SQL)

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  • Mongodb querying for multiple parameters

    - by gaggina
    I've this collections { "name" : "montalto", "users" : [ { "username" : "ciccio", "email" : "aaaaaaaa", "password" : "aaaaaaaa", "money" : 0 } ], "numers" : "8", "_id" : ObjectId("5040d3fded299bf03a000002") } If I want to search for a collection with the name of montalto and a user named ciccio I'm using the following query: db.coll.find({name:'montalto', users:{username:'ciccio'}}).count() But it does not work. Where I went wrong?

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  • Where to put files that will be read in a Rails app?

    - by Guilherme
    I'm developing a Rails application and within that application I developed a Rake task that will read entries from a file and store them into the DB. Producing the code was no problem, but I'd like to know, where do I place the file that is read? Is there a convention for that, if yes, what is it? I know I could have used the seed.rb file but is it ok, by the standards, to load and read a file from there? Thanks in advance!

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  • How a war file gets deployed in any application server?

    - by gurukulki
    I know that when a war file is created of my web application, i have to deploy it, that is if i am using JBoss i have to copy it to deploy folder and if using WAS i have to install it. But i want to know, When i start the server from where the server starts deploying my application. that is which is the entry point to start loading my classes, properties ,DB connections etc.. Thanks.

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  • How do I protect my website from javascript injection attacks when using rich text editors?

    - by VJ
    Hi all I am using the markitup editor to get the value for one of my fields and storing it a sql server 2008 db. Now I guess the problem is people having script tags and javascript in the editor and injecting malicious scripts and I have my validate input turned false. So can anyone suggest me a way to write a custom validation method that maybe checks for script tags and removes them...or just guide me through the steps i need to do ?...also are there other things also that I should be worried about..?

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  • How to decide on what hardware to deploy web application

    - by Yuval A
    Suppose you have a web application, no specific stack (Java/.NET/LAMP/Django/Rails, all good). How would you decide on which hardware to deploy it? What rules of thumb exist when determining how many machines you need? How would you formulate parameters such as concurrent users, simultaneous connections and DB read/write ratio to a decision on how much, and which, hardware you need? Any resources on this issue would be very helpful...

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  • apt-get install fuse - MAKEDEV not installed, skipping device node creation

    - by holms
    This happened with command apt-get dist-upgrade to upgrade to debian jessie, after which I've tried to remove fuse, and install it again. Same error: root@msgapp:/dev# apt-get install fuse Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: fuse 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/69.9 kB of archives. After this operation, 191 kB of additional disk space will be used. Selecting previously unselected package fuse. (Reading database ... 39354 files and directories currently installed.) Preparing to unpack .../fuse_2.9.3-10_amd64.deb ... Unpacking fuse (2.9.3-10) ... Processing triggers for man-db (2.6.7.1-1) ... Setting up fuse (2.9.3-10) ... MAKEDEV not installed, skipping device node creation. device node not found dpkg: error processing package fuse (--configure): subprocess installed post-installation script returned error exit status 2 Errors were encountered while processing: fuse E: Sub-process /usr/bin/dpkg returned an error code (1) UPDATE Reinstalling makedev gives another problem: root@msgapp:/dev# apt-get install makedev Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: makedev 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/42.6 kB of archives. After this operation, 129 kB of additional disk space will be used. Selecting previously unselected package makedev. (Reading database ... 39347 files and directories currently installed.) Preparing to unpack .../makedev_2.3.1-93_all.deb ... Unpacking makedev (2.3.1-93) ... Processing triggers for man-db (2.6.7.1-1) ... ySetting up makedev (2.3.1-93) ... /run/udev or .udevdb or .udev presence implies active udev. Aborting MAKEDEV invocation. /run/udev or .udevdb or .udev presence implies active udev. Aborting MAKEDEV invocation. /run/udev or .udevdb or .udev presence implies active udev. Aborting MAKEDEV invocation. There's ticket raised, and their fix doesn't give any result: root@msgapp:/dev# cd /dev && ./MAKEDEV fuse /run/udev or .udevdb or .udev presence implies active udev. Aborting MAKEDEV invocation.

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  • Implementing a logging library in .NET with a database as the storage medium

    - by Dave
    I'm just starting to work on a logging library that everyone can use to keep track of any sort of system information while the user is running our application. The simplest example so far is to track Info, Warnings, and Errors. I want all plugins to be able to use this feature, but since each developer might have a different idea of what's important to report, I want to keep this as generic as possible. In the C++ world, I would normally use something like a stl::pair<string,string> to act as a key value pair structure, and have a stl::list of these to act as a "row" in the log. The log cache would then be a list<list<pair<string,string>>> (ugh!). This way, the developers can use a const string key like INFO, WARNING, ERROR to have a consistent naming for a column in the database (for SELECTing specific types of information). I'd like the database to be able to deal with any number of distinct column names. For example, John might have an INFO row with a column called USER, and Bill might have an INFO row with a column called FILENAME. I want the log viewer to be able to display all information, and if one report doesn't have a value for INFO / FILENAME, those fields should just appear blank. So one option is to use List<List<KeyValuePair<String,String>>, and the another is to have the log library consumer somehow "register" its schema, and then have the database do an ALTER TABLE to handle this situation. Yet another idea is to have a table that's just for key value pairs, with a foreign key that maps the key value pairs back to the original log entry. I obviously don't want logging to bog down the system, so I only lock the log cache to make a copy of the data (and remove the already-copied data), then a background thread will dump the information to the database. My specific questions regarding this are: Do you see any performance issues? In other words, have you ever tried something like this and found that certain things just don't work well in practice? Is there a more .NETish way to implement the key value pairs, other than List<List<KeyValuePair<String,String>>>? Even if there is a way to do #2 better, is the ALTER TABLE idea I proposed above a Bad Thing? Would you recommend multiple databases over a single one? I don't yet have an idea of how frequently the log would get written to, but we ideally would like to have lots of low level information. Perhaps there should be a DB with a fixed schema only for the low level stuff, and then another DB that's more flexible for reporting information back to users.

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  • friendship database schema

    - by Daniel Hertz
    I'm creating a db schema that involves users that can be friends, and I was wondering what the best way to model the ability for these friends to have friendships. Should it be its own table that simply has two columns that each represent a user? Thanks!

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  • Redirect to a web server depending on location with nginx

    - by fceruti
    Im working on a web site that has to be reachable from many countries under the same domain. Id like to know how can I receive a request with nginx (or any other static file server), and send it to different web servers depending on IP's location. I mean, what is the point on having multiple db machines on country A and B, if the server that serves you the page is chosen by round robin. Maybe theres another solution to my problem, and I would be very happy if someone can explain it to me.

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  • php forms insert and update

    - by DAFFODIL
    I have a form.The user enter the data ,the data will be stored in the data base. Now,using phpmysql,i need to display the whole data present in db to front end.The user will click a particular thing and make some modifications and if,he press update the data should get into database. Give me a snippet http://dpaste.com/hold/178740/

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  • Multi-Part form in Codeigniter

    - by Kevin Brown
    I'm building a survey w/ Codeigniter, and it's getting cumbersomely long...so I want to split it up into sections (about 5). If I want each section to validate, and submit to db after the user clicks "next", what is the best way to do this? I've never made a multi-step process before. Any advice for a noob? :)

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  • drop down box php

    - by DAFFODIL
    I have stored 6 records in mysql db,when i use this code each of the 6 records getting displayed in seprate drop down box,i want them to be displayed in a single drop down box.Where am i going wrong? Any help ii be appreciated. Thnx in advance. http://dpaste.com/hold/180077/

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  • Delphi & Access

    - by rebel_UA
    Hi all! Please, write small Delphi-program which working woth DB Access For example, in Access will create customer-base(nickname & password), but in Delphi simple autorization form. Thanks

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  • c# eventhandling error

    - by bragin.www
    i have method private void getValues(object sender, EventArgs e) { int id = int.Parse(dgvTable.Rows[dgvTable.CurrentRow.Index].Cells[0].Value.ToString()); var values = from c in v.db.TotalDoc where c.TotalID == id select c.TotalAmount; dgvValues.DataSource = values; } and datagridview "dgvTable" error at this line dgvTable.CellClick += new EventHadler(getValues); error text is: No overload for 'getValues' matches delegate 'System.EventHandler' please help!

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  • Change MS Access to Exclusive on the fly

    - by Nate
    I have a process in an MS Acess database that the users will usually run once daily, but could be more or less. It takes several minutes and requires temporary exclusive access because it deletes and recreates the main table. I have code to check to see if there are other users in the db before the process starts, but is there a way to change the access to "exclusive" at the beginning, and then change it back to open access at the end? Thanks for any help.

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  • Is it worth a try LINQ to SQL as a beginner to an ORM?

    - by Pandiya Chendur
    Thus far used sql server stored procedures for all my web applications... Now thought of moving to an ORM... I would like to ask SO users about LINQ to SQL Is Linq to sql worth a try as a beginner to an ORM? or should i look for some others... Any suggestion... EDIT: I have a sql server 2005 database with all tables.... How to use this db with Linq to sql?

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  • connecting to oracle

    - by LIX
    Dears, I have a report server project in VS2005, and I added an oracle data source to my project and I did anything like my college! both of us did the same settings but I can't connect to the server. I connected to DB in TOAD but in VS2005 I couldn't. What should I check? I get this error during test connection : ORA-12154: TNS:could not resolve the connect identifier specified

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  • How to find out whether SqlCe query Has rows?

    - by Tomas
    Hi, In my simple db I use SqlCe and I cannot figure out how to correctly find out whether the query has rows or not. HasRows does not work. So far I have this: _DbCommand.CommandText="SELECT * FROM X" SqlCeDataReader reader=_DbCommand.ExecuteQuery(); if (reader.FieldCount!=0) //I thought it could work (O rows - 0 fields?), but its true even with 0 rows { while (reader.Read()) { // } } Thanks

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  • Microsoft Word Document Controls not accepting carriage returns

    - by Scott
    So, I have a Microsoft Word 2007 Document with several Plain Text Format (I have tried Rich Text Format as well) controls which accept input via XML. For carriage returns, I had the string being passed through XML containing "\r\n" when I wanted a carriage return, but the word document ignored that and just kept wrapping things on the same line. I also tried replacing the \r\n with System.Environment.NewLine in my C# mapper, but that just put in \r\n anyway, which still didn't work. Note also that on the control itself I have set it to "Allow Carriage Returns (Multiple Paragrpahs)" in the control properties. This is the XML for the listMapper <Field id="32" name="32" fieldType="SimpleText"> <DataSelector path="/Data/DB/DebtProduct"> <InputField fieldType="" path="/Data/DB/Client/strClientFirm" link="" type=""/> <InputField fieldType="" path="strClientRefDebt" link="" type=""/> </DataSelector> <DataMapper formatString="{0} Account Number: {1}" name="SimpleListMapper" type=""> <MapperData> </MapperData> </DataMapper> </Field> Note that this is the listMapper C# where I actually map the list (notice where I try and append the system.environment.newline) namespace DocEngine.Core.DataMappers { public class CSimpleListMapper:CBaseDataMapper { public override void Fill(DocEngine.Core.Interfaces.Document.IControl control, CDataSelector dataSelector) { if (control != null && dataSelector != null) { ISimpleTextControl textControl = (ISimpleTextControl)control; IContent content = textControl.CreateContent(); CInputFieldCollection fileds = dataSelector.Read(Context); StringBuilder builder = new StringBuilder(); if (fileds != null) { foreach (List<string> lst in fileds) { if (CanMap(lst) == false) continue; if (builder.Length > 0 && lst[0].Length > 0) builder.Append(Environment.NewLine); if (string.IsNullOrEmpty(FormatString)) builder.Append(lst[0]); else builder.Append(string.Format(FormatString, lst.ToArray())); } content.Value = builder.ToString(); textControl.Content = content; applyRules(control, null); } } } } } Does anybody have any clue at all how I can get MS Word 2007 (docx) to quit ignoring my newline characters??

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