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  • iPhone: Cell imageViews repeating when loaded from url

    - by araid
    I'm developing a demo RSS reader for iPhone. I obviously have a tableview to display the feeds, and then a detailed view. Some of this feeds have a thumbnail that I want to display on cell.imageview of the table, and some don't. The problem is that when scrolling the table, loaded thumbnails start repeating on other cells, and I end up with a thumbnail on every cell. Here's a piece of my code. I may upload screenshots later - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: @"rssItemCell"]; if(nil == cell){ cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"rssItemCell"]autorelease]; } BlogRss *item = [[[self rssParser]rssItems]objectAtIndex:indexPath.row]; cell.textLabel.text = [item title]; cell.detailTextLabel.text = [item description]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; // Thumbnail if exists if(noticia.imagePath != nil){ NSData* imageData; @try { imageData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:item.imagePath]]; } @catch (NSException * e) { //Some error while downloading data } @finally { item.image = [[UIImage alloc] initWithData:imageData]; [imageData release]; } } if(item.image != nil){ [[cell imageView] setImage:item.image]; } return cell; } Any help will be very appreciated.

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  • Set the property hibernate.dialect error message

    - by user281180
    I am having the following error when configuring mvc3 and Nhibernate. Can anyone guide me what I have missed please. the dialect was not set. Set the property hibernate.dialect. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: NHibernate.HibernateException: The dialect was not set. Set the property hibernate.dialect. Source Error: Line 16: { Line 17: NHibernate.Cfg.Configuration configuration = new NHibernate.Cfg.Configuration(); Line 18: configuration.AddAssembly(System.Reflection.Assembly.GetExecutingAssembly()); Line 19: sessionFactory = configuration.BuildSessionFactory(); Line 20: } My web.config is as follows: <configSections> <section name="cachingConfiguration"type="Microsoft.Practices.EnterpriseLibrary.Caching.Configuration.CacheManagerSettings,Microsoft.Practices.EnterpriseLibrary.Caching"/> <section name="log4net"type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/> <section name="hibernate-configuration"type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/ <appSettings> <add key="BusinessObjectAssemblies" value="Keeper.API"></add> <add key="ConnectionString" value="Server=localhost\SQLSERVER2005;Database=KeeperDev;User=test;Pwd=test;"></add> <add key="ClientValidationEnabled" value="true"/> <add key="UnobtrusiveJavaScriptEnabled" value="true"/> </appSettings> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> <property name="dialect">NHibernate.Dialect.MsSql2000Dialect</property> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.connection_string">Server=localhost\SQLServer2005;Database=KeeperDev;User=test;Pwd=test;</property> <property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property> </session-factory> </hibernate-configuration>

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  • Python performance improvement request for winkler

    - by Martlark
    I'm a python n00b and I'd like some suggestions on how to improve the algorithm to improve the performance of this method to compute the Jaro-Winkler distance of two names. def winklerCompareP(str1, str2): """Return approximate string comparator measure (between 0.0 and 1.0) USAGE: score = winkler(str1, str2) ARGUMENTS: str1 The first string str2 The second string DESCRIPTION: As described in 'An Application of the Fellegi-Sunter Model of Record Linkage to the 1990 U.S. Decennial Census' by William E. Winkler and Yves Thibaudeau. Based on the 'jaro' string comparator, but modifies it according to whether the first few characters are the same or not. """ # Quick check if the strings are the same - - - - - - - - - - - - - - - - - - # jaro_winkler_marker_char = chr(1) if (str1 == str2): return 1.0 len1 = len(str1) len2 = len(str2) halflen = max(len1,len2) / 2 - 1 ass1 = '' # Characters assigned in str1 ass2 = '' # Characters assigned in str2 #ass1 = '' #ass2 = '' workstr1 = str1 workstr2 = str2 common1 = 0 # Number of common characters common2 = 0 #print "'len1', str1[i], start, end, index, ass1, workstr2, common1" # Analyse the first string - - - - - - - - - - - - - - - - - - - - - - - - - # for i in range(len1): start = max(0,i-halflen) end = min(i+halflen+1,len2) index = workstr2.find(str1[i],start,end) #print 'len1', str1[i], start, end, index, ass1, workstr2, common1 if (index > -1): # Found common character common1 += 1 #ass1 += str1[i] ass1 = ass1 + str1[i] workstr2 = workstr2[:index]+jaro_winkler_marker_char+workstr2[index+1:] #print "str1 analyse result", ass1, common1 #print "str1 analyse result", ass1, common1 # Analyse the second string - - - - - - - - - - - - - - - - - - - - - - - - - # for i in range(len2): start = max(0,i-halflen) end = min(i+halflen+1,len1) index = workstr1.find(str2[i],start,end) #print 'len2', str2[i], start, end, index, ass1, workstr1, common2 if (index > -1): # Found common character common2 += 1 #ass2 += str2[i] ass2 = ass2 + str2[i] workstr1 = workstr1[:index]+jaro_winkler_marker_char+workstr1[index+1:] if (common1 != common2): print('Winkler: Wrong common values for strings "%s" and "%s"' % \ (str1, str2) + ', common1: %i, common2: %i' % (common1, common2) + \ ', common should be the same.') common1 = float(common1+common2) / 2.0 ##### This is just a fix ##### if (common1 == 0): return 0.0 # Compute number of transpositions - - - - - - - - - - - - - - - - - - - - - # transposition = 0 for i in range(len(ass1)): if (ass1[i] != ass2[i]): transposition += 1 transposition = transposition / 2.0 # Now compute how many characters are common at beginning - - - - - - - - - - # minlen = min(len1,len2) for same in range(minlen+1): if (str1[:same] != str2[:same]): break same -= 1 if (same > 4): same = 4 common1 = float(common1) w = 1./3.*(common1 / float(len1) + common1 / float(len2) + (common1-transposition) / common1) wn = w + same*0.1 * (1.0 - w) return wn

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  • Error // Usage: rails new APP_PATH [options] // when running 'rails server'

    - by madphill
    Background info: I'm using GIT to get a repository of a project with Ruby files in it. The project lives in my SITES folder under home directory on my Mac. I have Ruby: 1.8.7 I have just upgraded Rails to: 3.0.3 All I am trying to accomplish is to be able to render localhost.com:3000 in my browser of the GIT project i've already downloaded so I can work on it locally. I ran the command 'rails server' and was returned the message below:: Usage: rails new APP_PATH [options] Options: [--skip-gemfile] # Don't create a Gemfile -m, [--template=TEMPLATE] # Path to an application template (can be a filesystem path or URL) -d, [--database=DATABASE] # Preconfigure for selected database (options: mysql/oracle/postgresql/sqlite3/frontbase/ibm_db) # Default: sqlite3 -O, [--skip-active-record] # Skip Active Record files -J, [--skip-prototype] # Skip Prototype files -T, [--skip-test-unit] # Skip Test::Unit files [--dev] # Setup the application with Gemfile pointing to your Rails checkout -r, [--ruby=PATH] # Path to the Ruby binary of your choice # Default: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -G, [--skip-git] # Skip Git ignores and keeps -b, [--builder=BUILDER] # Path to an application builder (can be a filesystem path or URL) [--edge] # Setup the application with Gemfile pointing to Rails repository Runtime options: -f, [--force] # Overwrite files that already exist -s, [--skip] # Skip files that already exist -p, [--pretend] # Run but do not make any changes -q, [--quiet] # Supress status output Rails options: -h, [--help] # Show this help message and quit -v, [--version] # Show Rails version number and quit Description: The 'rails new' command creates a new Rails application with a default directory structure and configuration at the path you specify. Example: rails new ~/Code/Ruby/weblog This generates a skeletal Rails installation in ~/Code/Ruby/weblog. See the README in the newly created application to get going.

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  • Flex 3: should I provide prepared data to my component or make it to process data before display?

    - by grapkulec
    I'm starting to learn a little Flex just for fun and maybe to prove that I still can learn something new :) I have some idea for a project and one of its parts is a tree component which could display data in different ways depending on configuration. The idea There is list of objects having properties like id, date, time, name, description. And sometimes list should be displayed like this: first level: date second level: time third level: name and sometimes like this: first level: year second level: month third level: day fourth level: time and name By level I mean level of nesting of course. So, we can have years, that have months, that have days, that have hours and so forth. The problem What could be the best way to do it? I mean, should I prepare data for different ways of nesting outside of component or even outside of flex? I can do it at web service level in C# where I plan to have database access layer and send to flex nice and ready to display XML or array of objects. But I wonder if that won't cause additional and maybe unneccessary network traffic. I tried to hack some code in my component to convert my data objects into XML or ArrayCollection but I don't know enough of Flex and got stuck on elimination of duplicates or getting specific data by some key value. Usually to do such things I have STL with maps, sets and vectors and I find Flex arrays and even Dictionary a little bit confusing (I've read language reference and googled without any significant luck). The question So, to sum things up: should I give my tree component data prepared just for chosen type of display or should I try to do it internally inside component (or some helper class written in ActionScript)?

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  • Make Ant's delete task fail when a directory exists and is not deleted but not when it doesn't exist

    - by Tim Visher
    I have tho following clean function in my build script and I'd like to know how I can improve it. <target name="clean" description="Clean output directories."> <!-- Must not fail on error because it fails if directories don't exist. Is there really no better way to do this? --> <delete includeEmptyDirs="true" failonerror="false"> <fileset dir="${main.build.directory}" /> <fileset dir="dist" /> <fileset dir="${documentation.build.directory}" /> <fileset dir="/build-testing" /> </delete> </target> Specifically regarding my comment, I'm unhappy with the fact that I can't run this on a fresh box because the directory structure hasn't been set up yet by the other targets. We run the build in such a way that it entirely recreates the structures necessary for testing and deployment every time to avoid stale class files and such. With the way that delete currently is set up, a failure to delete a file does not fail the build and I'd like it to. I don't want it to fail the build if the file doesn't exist though. If it doesn't exist then what I'm asking it to do has already happened. Thoughts?

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  • Getting value of "i" from GEvent

    - by Cosizzle
    Hello, I'm trying to add an event listener to each icon on the map when it's pressed. I'm storing the information in the database and the value that I'm wanting to retrive is "i" however when I output "i", I get it's last value which is 5 (there are 6 objects being drawn onto the map) Below is the code, what would be the best way to get the value of i, and not the object itself. var drawLotLoc = function(id) { var lotLoc = new GIcon(G_DEFAULT_ICON); // create icon object lotLoc.image = url+"images/markers/lotLocation.gif"; // set the icon image lotLoc.shadow = ""; // no shadow lotLoc.iconSize = new GSize(24, 24); // set the size var markerOptions = { icon: lotLoc }; $.post(opts.postScript, {action: 'drawlotLoc', id: id}, function(data) { var markers = new Array(); // lotLoc[x].description // lotLoc[x].lat // lotLoc[x].lng // lotLoc[x].nighbourhood // lotLoc[x].lot var lotLoc = $.evalJSON(data); for(var i=0; i<lotLoc.length; i++) { var spLat = parseFloat(lotLoc[i].lat); var spLng = parseFloat(lotLoc[i].lng); var latlng = new GLatLng(spLat, spLng) markers[i] = new GMarker(latlng, markerOptions); myMap.addOverlay(markers[i]); GEvent.addListener(markers[i], "click", function() { console.log(i); // returning 5 in all cases. // I _need_ this to be unique to the object being clicked. console.log(this); }); } });

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  • Silverlight - how to render image from non-visible data bound user control?

    - by MagicMax
    Hello! I have such situation - I'd like to build timeline control. So I have UserControl and ItemsControl on it (every row represents some person). The ItemsControl contains another ItemsControl as ItemsControl.ItemTemplate - it shows e.g. events for the person arranged by event's date. So it looks as some kind of grid with dates as a column headers and e.g. peoples as row headers. ........................|.2010.01.01.....2010.01.02.....2010.01.03 Adam Smith....|......[some event#1].....[some event#2]...... John Dow.......|...[some event#3].....[some event#4]......... I can have a lot of persons (ItemsControl #1 - 100-200 items) and a lot of events occured by some day (1-10-30 events per person in one day) the problem is that when user scrolls ItemsControl #1/#2 it happened toooo sloooooowwww due to a lot of elements should be rendered in one time (as I have e.g. a bit of text boxes and other elements in description of particular event) Question #1 - how can I improve it? May be somebody knows better way to build such user control? I have to mention that I'm using custom Virtual panel, based on some custom Virtual panel implementation found somewhere in internet... Question #2 - I'd like to make image with help of WriteableBitmap and render data bound control to image and to show image instead of a lot of elements. Problem is that I'm trying to render invisible data bound control (created in code behind) and it has actualWidth/Height equals to zero (so nothing rendered). How can I solve it? Thank you very much for you help!

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  • How to convert none-Latin-based encoded text into UTF-8, or make them coexist on same page?

    - by Yallaa
    Good day, I have a script that scrapes the title/description of remote pages and prints those values into a corresponding charset=UTF-8 encoded page. Here is the problem, whenever a remote page is encoded with non-Latin characters encoding like (Arabic, Russian, Chinese, Japanese etc.) the imported values print as garbled text. I've tried passing those values through either iconv or mb_convert_encoding converters but without much success. Then, I tried detecting the remote encoding first, then change my presentation page's encoding into the remote one instead of the current utf-8, which works okay with the imported values, but the other existing utf-8 content of that language on the page gets garbled instead. Example: If I try to import those values from a Russian windows-1251 into my UTF-8 encoded page which has a mix English/Russian content. I change the imported non-utf-8 string into a utf-8 using either iconv or mb_convert_encoding. I tried: $RemoteValue = iconv($RemoteEncoding, 'UTF-8', $RemoteValue); or $RemoteValue mb_convert_encoding($RemoteValue, "UTF-8", $RemoteEncoding); or $RemoteValue mb_convert_encoding($RemoteValue, "UTF-8", "auto"); without success. If I detect that the remote page is windows-1251 encoded and I change my presentation page (which already has UTF-8 encoded mixed language content) to be similar to the remote page, then the japanese utf-8 content on the existing page gets garbled... Can 2 differently encoded strings coexist on the same page (ex. utf-8 & windows-1251)? Am I using the converters correctly? any hints as to why they don't work? Is there any better way to do this? Thank you for your help

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  • How to change the view angle and label value of a chart .NET C#

    - by George
    Short Description I am using charts for a specific application where i need to change the view angle of the rendered 3D Pie chart and value of automatic labels from pie label names to corresponding pie values. This how the chart looks: Initialization This is how i initialize it: Dictionary<string, decimal> secondPersonsWithValues = HistoryModel.getSecondPersonWithValues(); decimal[] yValues = new decimal[secondPersonsWithValues.Values.Count]; //VALUES string[] xValues = new string[secondPersonsWithValues.Keys.Count]; //LABELS secondPersonsWithValues.Keys.CopyTo(xValues, 0); secondPersonsWithValues.Values.CopyTo(yValues, 0); incomeExpenseChart.Series["Default"].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Pie; incomeExpenseChart.Series["Default"].Points.DataBindXY(xValues, yValues); incomeExpenseChart.ChartAreas["Default"].Area3DStyle.Enable3D = true; incomeExpenseChart.Series["Default"].CustomProperties = "PieLabelStyle=Outside"; incomeExpenseChart.Legends["Default"].Enabled = true; incomeExpenseChart.ChartAreas["Default"].Area3DStyle.LightStyle = System.Windows.Forms.DataVisualization.Charting.LightStyle.Realistic; incomeExpenseChart.Series["Default"]["PieDrawingStyle"] = "SoftEdge"; Basically i am querying data from database using the HistoryModel.getSecondPersonWithValues(); to get pairs as Dictionary<string, decimal> where key is the person and value is ammount. Problem #1 What i need is to be able to change the marked labels from person names to the ammounts or add another label of ammounts with the same colors (See Image). Problem #2 Another problem is that i need to change the view angle of 3D Pie chart. Maybe it's very simple and I just don't know the needed property or maybe i need to override some paint event. Either ways any kind of ways would be appriciated. Thanks in advance George.

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  • How to force the build to be out of date, when a text file is modified?

    - by demoncodemonkey
    The Scenario My project has a post-build phase set up to run a batch file, which reads a text file "version.txt". The batch file uses the information in version.txt to inject the DLL with a version block using this tool. The version.txt is included in my project to make it easy to modify. It looks a bit like this: @set #Description="TankFace Utility Library" @set #FileVersion="0.1.2.0" @set #Comments="" Basically the batch file renames this file to version.bat, calls it, then renames it back to version.txt afterwards. The Problem When I modify version.txt (e.g. to increment the file version), and then press F7, the build is not seen as out-of-date, so the post-build step is not executed, so the DLL's version doesn't get updated. I really want to include the .txt file as an input to the build, but without anything actually trying to use it. If I #include the .txt file from a CPP file in the project, the compiler fails because it obviously doesn't understand what "@set" means. If I add /* ... */ comments around the @set commands, then the batch file has some syntax errors but eventually succeeds. But this is a poor solution I think. So... how would you do it?

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  • Adding IoC Support to my WCF service hosted in a windows service (Autofac)

    - by user137348
    I'd like to setup my WCF services to use an IoC Container. There's an article in the Autofac wiki about WCF integration, but it's showing just an integration with a service hosted in IIS. But my services are hosted in a windows service. Here I got an advice to hook up the opening event http://groups.google.com/group/autofac/browse_thread/thread/23eb7ff07d8bfa03 I've followed the advice and this is what I got so far: private void RunService<T>() { var builder = new ContainerBuilder(); builder.Register(c => new DataAccessAdapter("1")).As<IDataAccessAdapter>(); ServiceHost serviceHost = new ServiceHost(typeof(T)); serviceHost.Opening += (sender, args) => serviceHost.Description.Behaviors.Add( new AutofacDependencyInjectionServiceBehavior(builder.Build(), typeof(T), ??? )); serviceHost.Open(); } The AutofacDependencyInjectionServiceBehavior has a ctor which takes 3 parameters. The third one is of type IComponentRegistration and I have no idea where can I get it from. Any ideas ? Thanks in advance.

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  • How to set the build.xml for the Groovy Antbuilder?

    - by Jan
    I want to execute a build.xml (Ant buildfile) from using GMaven (Maven Plugin for inline executing of Groovy in a POM). Since I have to execute the buildfile several times using the maven-antrun-plugin is not an option at the moment. I take a list of properties (environment and machine names) from an xml file and want to execute ant builds for each of those machines. I found the executeTarget method in the javadocs but not how to set the location of the buildfile. How can I do that - and is this enough? What I have looks as follows: <plugin> <groupId>org.codehaus.groovy.maven</groupId> <artifactId>gmaven-plugin</artifactId> <executions> <execution> <id>some ant builds</id> <phase>process-sources</phase> <goals> <goal>execute</goal> </goals> <configuration> <source> def ant = new AntBuilder() def machines = new XmlParser().parse(new File(project.build.outputDirectory + '/MachineList.xml')); machines.children().each { log.info('Creating machine description for ' + it.Id.text() + ' / ' + it.Environment.text()); ant.project.setProperty('Environment',it.Environment.text()); ant.project.setProperty('Machine',it.Id.text()); // What's missing? ant.project.executeTarget('Tailoring'); } log.info('Ant has finished.') </source> </configuration> </execution> </executions> </plugin>

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  • Getting an "i" from GEvent

    - by Cosizzle
    Hello, I'm trying to add an event listener to each icon on the map when it's pressed. I'm storing the information in the database and the value that I'm wanting to retrive is "i" however when I output "i", I get it's last value which is 5 (there are 6 objects being drawn onto the map) Below is the code, what would be the best way to get the value of i, and not the object itself. var drawLotLoc = function(id) { var lotLoc = new GIcon(G_DEFAULT_ICON); // create icon object lotLoc.image = url+"images/markers/lotLocation.gif"; // set the icon image lotLoc.shadow = ""; // no shadow lotLoc.iconSize = new GSize(24, 24); // set the size var markerOptions = { icon: lotLoc }; $.post(opts.postScript, {action: 'drawlotLoc', id: id}, function(data) { var markers = new Array(); // lotLoc[x].description // lotLoc[x].lat // lotLoc[x].lng // lotLoc[x].nighbourhood // lotLoc[x].lot var lotLoc = $.evalJSON(data); for(var i=0; i<lotLoc.length; i++) { var spLat = parseFloat(lotLoc[i].lat); var spLng = parseFloat(lotLoc[i].lng); var latlng = new GLatLng(spLat, spLng) markers[i] = new GMarker(latlng, markerOptions); myMap.addOverlay(markers[i]); GEvent.addListener(markers[i], "click", function() { console.log(i); // returning 5 in all cases. // I _need_ this to be unique to the object being clicked. console.log(this); }); } });

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  • parameter error in my Facebook app

    - by Robert
    I have written a small app and put it on facebook. I got an application ID and secret. Then I wrote the following script to access my app (just as told on the facebook page). <?php require './src/facebook.php'; $facebook = new Facebook(array( 'appId' => 'xxxx', 'secret' => 'xxxx', 'cookie' => true, // enable optional cookie support )); try { $me = $facebook->api('/me'); } catch (FacebookApiException $e) { error_log($e); } if ($facebook->getSession()) { echo '<a href="' . $facebook->getLogoutUrl() . '">Logout</a>'; } else { echo '<a href="' . $facebook->getLoginUrl() . '">Login</a>'; } ?> Then I started running this script. It prompted me with the login link, then took me to the facebook login page. However, after I enter my facebook login details, I get this error page: Error. API Error Code: 100 API Error Description: Invalid parameter Error Message: next is not owned by the application. Could anyone help me a little bit please, I am really confused here about what's going on.

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  • Ivy failed to resolve dependency : What to check, what to do ?

    - by fardon57
    Hi everyone, I'm using Ivy to resolve dependency in my very small project. It's the first time I'm doing that and it's more to learn as my project is very small. I had a problem 5 minutes ago, when trying to download log4j. My configuration is very basic, I have an ant task : <target name="resolve" description="--> retrieve dependencies with ivy"> <ivy:retrieve/> </target> and my Ivy.xml file is like this : <dependency org="javax.servlet" name="servlet-api" rev="2.5" /> <dependency org="log4j" name="log4j" rev="1.2.15" /> </dependencies> The problem is seems to happen when ivy tries to download jms 1.1 (I suppose it's needed for log4j) as I can see in the console : : ::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: FAILED DOWNLOADS :: [ivy:retrieve] :: ^ see resolution messages for details ^ :: [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:retrieve] :: javax.jms#jms;1.1!jms.jar [ivy:retrieve] :: com.sun.jdmk#jmxtools;1.2.1!jmxtools.jar [ivy:retrieve] :: com.sun.jmx#jmxri;1.2.1!jmxri.jar [ivy:retrieve] :::::::::::::::::::::::::::::::::::::::::::::: Is there anything I can do ? Thanks a lot guys. F

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  • UUIDs in Rails3

    - by Rob Wilkerson
    I'm trying to setup my first Rails3 project and, early on, I'm running into problems with either uuidtools, my UUIDHelper or perhaps callbacks. I'm obviously trying to use UUIDs and (I think) I've set things up as described in Ariejan de Vroom's article. I've tried using the UUID as a primary key and also as simply a supplemental field, but it seems like the UUIDHelper is never being called. I've read many mentions of callbacks and/or helpers changing in Rails3, but I can't find any specifics that would tell me how to adjust. Here's my setup as it stands at this moment (there have been a few iterations): # migration class CreateImages < ActiveRecord::Migration def self.up create_table :images do |t| t.string :uuid, :limit => 36 t.string :title t.text :description t.timestamps end end ... end # lib/uuid_helper.rb require 'rubygems' require 'uuidtools' module UUIDHelper def before_create() self.uuid = UUID.timestamp_create.to_s end end # models/image.rb class Image < ActiveRecord::Base include UUIDHelper ... end Any insight would be much appreciated. Thanks.

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  • Loading UITableView form UIView

    - by Amarpreet
    Hi Guys, I am working on navigation based application in which i can navigate to many views starting from default UITableView which is starting view in application template. I have added another UIView and added tableView control on that UIView. I am calling that view form one of the many views on a button click. Its showing the view but not populating the data in the table. And I also want to handle the event when user taps on the cell of the table of that view. Below is the Code I am using on button click: if(self.lstView == nil) { ListViewController *viewController = [[ListViewController alloc] initWithNibName:@"ListViewController" bundle:nil]; self.lstView = viewController; [viewController release]; } [self.navigationController pushViewController:lstView animated:YES]; self.lstView.title = @"Select";//@"System"; [self.lstView.tblList.dataSource fillList]; Below is the fillList function code: -(NSArray *)fillList { NSArray *tempArray = [[[NSArray alloc] initWithObjects:@"Item 1" , @"Item 2" , nil]autorelease]; return tempArray; } I am pretty new in Iphone programming and don't have much understanding. Helping with detailed description and code will be highly appreciated. Thanks.

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  • opengl color quadrangle

    - by Tyzak
    hello i try out opengl. i have a programm that creates a black border an white corner (quadrangle). now i want to make the corner of the quadrangle in an different color. i don't know where exactly to write the code, and i don't know much a but color4f, i searcherd on google, but didn't get it. (is there a good description somewhere?) #include <iostream> #include <GL/freeglut.h> void Init() { glColor4f(100,0,0,0); } void RenderScene() //Zeichenfunktion { glLoadIdentity (); glBegin( GL_POLYGON ); glVertex3f( -0.5, -0.5, -0.5 ); glVertex3f( 0.5, -0.5, -0.5 ); glVertex3f( 0.5, 0.5, -0.5 ); glVertex3f( -0.5, 0.5, -0.5 ); glEnd(); glFlush(); } void Reshape(int width,int height) { } void Animate (int value) { std::cout << "value=" << value << std::endl; glutPostRedisplay(); glutTimerFunc(100, Animate, ++value); } int main(int argc, char **argv) { glutInit( &argc, argv ); // GLUT initialisieren glutInitDisplayMode( GLUT_RGB ); // Fenster-Konfiguration glutInitWindowSize( 600, 600 ); glutCreateWindow( "inkrement screen; visual screen" ); // Fenster-Erzeugung glutDisplayFunc( RenderScene ); // Zeichenfunktion bekannt machen glutReshapeFunc( Reshape ); glutTimerFunc( 10, Animate, 0); Init(); glutMainLoop(); return 0; }

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  • Ruby on Rails field_for Form Helper Problems

    - by schone
    Hi all, I'm using the field_for form helper with a loop: <% f.fields_for :permissions do |permission_form| %> <tr> <td><%= permission_form.object.security_module.name %><%= permission_form.hidden_field(:security_module_id) %></td> <td><%= permission_form.object.security_module.description %></td> <tr> <% end %> The resulting output of the above code is this: <input id="role_permissions_attributes_0_id" name="role[permissions_attributes][0][id]" type="hidden" value="76" /> <tr> <td>Diary<input id="role_permissions_attributes_0_security_module_id" name="role[permissions_attributes][0][security_module_id]" type="hidden" value="13" /></td> <td>Access to the Diary Module</td> </tr> <!-- next input field then <tr> tag --> The problem with this markup is that the input tag falls outside of the tr tag which there for causes validation issues with XHTML. Does anyone know how I can have the input tag fall inside the tr tag therefore giving me valid XHTML 1.0 STRICT markup? Thanks

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  • Why put a DAO layer over a persistence layer (like JDO or Hibernate)

    - by Todd Owen
    Data Access Objects (DAOs) are a common design pattern, and recommended by Sun. But the earliest examples of Java DAOs interacted directly with relational databases -- they were, in essence, doing object-relational mapping (ORM). Nowadays, I see DAOs on top of mature ORM frameworks like JDO and Hibernate, and I wonder if that is really a good idea. I am developing a web service using JDO as the persistence layer, and am considering whether or not to introduce DAOs. I foresee a problem when dealing with a particular class which contains a map of other objects: public class Book { // Book description in various languages, indexed by ISO language codes private Map<String,BookDescription> descriptions; } JDO is clever enough to map this to a foreign key constraint between the "BOOKS" and "BOOKDESCRIPTIONS" tables. It transparently loads the BookDescription objects (using lazy loading, I believe), and persists them when the Book object is persisted. If I was to introduce a "data access layer" and write a class like BookDao, and encapsulate all the JDO code within this, then wouldn't this JDO's transparent loading of the child objects be circumventing the data access layer? For consistency, shouldn't all the BookDescription objects be loaded and persisted via some BookDescriptionDao object (or BookDao.loadDescription method)? Yet refactoring in that way would make manipulating the model needlessly complicated. So my question is, what's wrong with calling JDO (or Hibernate, or whatever ORM you fancy) directly in the business layer? Its syntax is already quite concise, and it is datastore-agnostic. What is the advantage, if any, of encapsulating it in Data Access Objects?

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  • Improving SQL Code

    - by jeremib
    I'm using Pervasive SQL. I have the following UNION of mulitple SQL statements. Is there a way to clean this up, especially the Pay Date an the Loc No fields that are selected in each statement. Is there a way to pull this out and have only one place to need to change those two fields? ( SELECT '23400' as Gl_Number, y.Plan as Description, 0 as Hours, ROUND(SUM(Ee_Curr),2) as Debit, 0 as Credit FROM "PR_YLOC" y LEFT JOIN PR_SUMM s ON (s.Summ_No = y.Summ_No) WHERE y.Loc_No = 1041 AND s.Pay_Date = '2010-04-02' AND y.Code IN (100, 105, 110) AND y.Type = 3 GROUP BY y.Plan ) UNION ( SELECT '72000' as Gl_Number, y.Plan, 0, ROUND(SUM(Er_Curr),2), 0 FROM "PR_YLOC" y LEFT JOIN PR_SUMM s ON (s.Summ_No = y.Summ_No) WHERE y.Loc_No = 1041 AND s.Pay_Date = '2010-04-02' AND y.Code IN (100, 105, 110) AND y.Type = 3 GROUP BY y.Plan ) UNION ( SELECT '24800', c.Plan, 0, ROUND(SUM(Ee_Amt),2), 0 FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 100 GROUP BY c.Plan ) UNION ( SELECT '24800', c.Plan, 0, 0, ROUND(SUM(Ee_Amt),2) FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 115 GROUP BY c.Plan ) UNION ( SELECT '24150', c.Plan, 0, 0, ROUND(SUM(Ee_Amt),2) FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 241 GROUP BY c.Plan ) UNION ( SELECT '24150', c.Plan, 0, ROUND(SUM(Ee_Amt),2), 0 FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 239 GROUP BY c.Plan ) UNION ( SELECT '24120', c.Plan, 0, ROUND(SUM(Ee_Amt),2), 0 FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 230 GROUP BY c.Plan ) UNION ( SELECT '24100', c.Plan, 0, ROUND(SUM(Ee_Amt),2), 0 FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 225 GROUP BY c.Plan ) UNION ( SELECT '23800', c.Plan, 0, ROUND(SUM(Ee_Amt),2), 0 FROM "PR_CDED" c WHERE Pay_Date = '2010-04-02' AND Loc_No = 1041 AND Code = 245 GROUP BY c.Plan ) UNION ( select m.Def_Dept as Gl_Number, t.Short_Desc, (SELECT SUM(Hours) FROM pr_earn en WHERE en.Loc_No = e.Loc_No AND en.Emp_No = e.Emp_No AND en.Pay_Date = e.Pay_Date AND en.Pay_Code = e.Pay_Code) as Hours, (SELECT SUM(Pay_Amt) FROM pr_earn en WHERE en.Loc_No = e.Loc_No AND en.Emp_No = e.Emp_No AND en.Pay_Date = e.Pay_Date AND en.Pay_Code = e.Pay_Code) as Debit, 0 from pr_earn e left join pr_mast m on (e.Loc_No = m.Loc_No and e.Emp_No = m.Emp_No) left join pr_ptype t ON (t.Code = e.Pay_Code) where e.loc_no = 1041 and e.pay_date = '2010-04-02' group by m.Def_Dept, t.Short_Desc ) Thanks

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  • How to remove extra white spaces using javascript or jquery?

    - by Amr ElGarhy
    I got HTML element contains this: <!--Product Style--> <div style="float: right; padding-top: 4px; padding-bottom: 5px;"> P6C245RO </div> <div style="text-transform: uppercase; font-weight: bold; padding-top: 4px; padding-bottom: 5px;"> Style </div> <div style="clear: both; border-top: 1px solid rgb(216, 216, 216); padding-top: 4px;"> <!--Product Description--> <div style="font-size: 11px ! important;"></div> <div style="background: url(&quot;http://ii.armaniexchange.com/ArmaniExchange/images/en_US/global/globalgraphics/bullet.gif&quot;) no-repeat scroll 0pt 4px transparent; padding-left: 12px;">fine tonal striped fabric</div> <div style="background: url(&quot;http://ii.armaniexchange.com/ArmaniExchange/images/en_US/global/globalgraphics/bullet.gif&quot;) no-repeat scroll 0pt 4px transparent; padding-left: 12px;">epaulettes and sleeve tab</div> <div style="background: url(&quot;http://ii.armaniexchange.com/ArmaniExchange/images/en_US/global/globalgraphics/bullet.gif&quot;) no-repeat scroll 0pt 4px transparent; padding-left: 12px;">metal logo plate on the chest pocket</div> When i read it using jquery i get the .text() contains a lot of spaces and /n in between the text but without the html tags. How to remove all these white spaces and return the clean text using jquery or pure javascript?

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  • Database design for a media server containing movies, music, tv and everything in between?

    - by user364114
    In the near future I am attempting to design a media server as a personal project. MY first consideration to get the project underway is architecture, it will certainly be web based but more specifically than that I am looking for suggestions on the database design. So far I am considering something like the following, where I am using [] to represent a table, the first text is the table name to give an idea of purpose and the items within {} would be fields of the table. Also not, fid is functional id referencing some other table. [Item {id, value/name, description, link, type}] - this could be any entity, single song or whole music album, game, movie - almost see this as a recursive relation, ie. a song is an item but an album that song is part of is also an item or for example a tv season is an item, with multiple items being tv episodes [Type {id, fid, mime type, etc}] - file type specific information - could identify how code handles streaming/sending this item to a user [Location {id, fid, path to file?}] [Users {id, username, email, password, ...? }] - user account information [UAC {id, fid, acess level}] - i almost feel its more flexible to seperate access control permissions form the user accounts themselves [ItemLog {id, fid, fid2, timestamp}] - fid for user id, and fid2 for item id - this way we know what user access what when [UserLog {id, fid, timestamp}] -both are logs for access, whether login or last item access [Quota {id, fid, cap}] - some sort of way to throttle users from queing up the entire site and letting it download ... Suggestions or comments are welcome as the hope is that this project will be a open source project once some code is laid out.

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  • Mysql Server Optimization

    - by Ish Kumar
    Hi Geeks, We are having serious MySQL(InnoDB) performance issues at a moment when we do: (10-20) insertions on TABLE1 (10-20) updates on TABLE2 Note: Both above operations happens within fraction of a second. And this occurs every few (10-15) minutes. And all online users (approx 400-600) doing read operation on join of TABLE1 & TABLE2 every 1 second. Here is our mysql configuration info: http://docs.google.com/View?id=dfrswh7c_117fmgcmb44 Issues: Lot queries wait and expire later (saw it from phpmyadmin / processes). My poor MySQL server crashes sometimes Questions Q1: Any suggestions to optimize at MySQL level? Q2: I thinking to use persistent connections at application level, is it right? Info Added Later: Database Engine: InnoDB TABLE1 : 400,000 rows (inserting 8,000 daily) & TABLE2: 8,000 rows 1 second query: SELECT b.id, b.user_id, b.description, b.debit, b.created, b.price, u.username, u.email, u.mobile FROM TABLE1 b, TABLE2 u WHERE b.credit = 0 AND b.user_id = u.id AND b.auction_id = "12345" ORDER BY b.id DESC LIMIT 10; // there are few more but they are not so critical. Indexing is good, we are using them wisely. In above query all id's are indexed And TABLE1 has frequent insertions and TABLE2 has frequent updates.

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