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• NoPrimaryKeyException from DBUnit when loading a dataset into a databse

  - by Omar Kooheji

  I'm getting NoPrimaryKeyException when I try to run one of my unit tests which uses DBUnit. The datatable is created using Hibernate and is a join table between two classes mapping a many to many relationship. The annotations that define the relationship are as follows: @Override @ManyToMany @JoinTable(name="offset_file_offset_entries", joinColumns={@JoinColumn(name="offset_entry_id")},inverseJoinColumns={@JoinColumn(name="file_description_id")}) public List<OffsetEntry> getOffsets() { The other entries in in the XML file I'm using to define the dataset seem to work fine but not the join table. I get the following exception: org.dbunit.dataset.NoPrimaryKeyException: offset_file_offset_entries at org.dbunit.operation.UpdateOperation.getOperationData(UpdateOperation.java:72) at org.dbunit.operation.RefreshOperation$UpdateRowOperation.<init>(RefreshOperation.java:266) at org.dbunit.operation.RefreshOperation.createUpdateOperation(RefreshOperation.java:142) at org.dbunit.operation.RefreshOperation.execute(RefreshOperation.java:100) at org.dbunit.ext.mssql.InsertIdentityOperation.execute(InsertIdentityOperation.java:217) at uk.co.sabio.obscheduler.application.dao.AbstractBaseDatabaseTest.setUp(AbstractBaseDatabaseTest.java:57) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests.runManaged(AbstractJUnit38SpringContextTests.java:332) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests.access$0(AbstractJUnit38SpringContextTests.java:326) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests$1.run(AbstractJUnit38SpringContextTests.java:216) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests.runTest(AbstractJUnit38SpringContextTests.java:296) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests.runTestTimed(AbstractJUnit38SpringContextTests.java:253) at org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests.runBare(AbstractJUnit38SpringContextTests.java:213) at junit.framework.TestResult$1.protect(TestResult.java:110) at junit.framework.TestResult.runProtected(TestResult.java:128) at junit.framework.TestResult.run(TestResult.java:113) at junit.framework.TestCase.run(TestCase.java:124) at junit.framework.TestSuite.runTest(TestSuite.java:232) at junit.framework.TestSuite.run(TestSuite.java:227) at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) the Dataset entry in question looks like this: <offset_file_offset_entries offset_entry_id="1" file_description_id="1" /> And matches up with the database which has both fields as primary keys (The Databse is MS SQL Server if that helps) There are corresponding entries in the two tables being Joined defined in the following xml: <dataset> <file_description file_path="src/test/resources/" file_pattern=".txt" file_description_id="1"/> <offset_file_description file_description_id="1"/> <offset_entries offset_entry_id="1" field_name="Field1" field_length="10" start_index="0"/> <offset_file_offset_entries offset_entry_id="1" file_description_id="1" /> </dataset> Do I have to define the primary keys in the hibernate annotations? If so How do I do so? do I have to change the way I define my dataset to imply that the two columns are a joint primary key? I'm not very proficient with hibernate or DBUnit for that matter and I'm at my wits end so any assistance would be really appreciated.

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• Building the DropThings ASP.NET Solution

  - by Sephrial

  Hi all, I'm attempting to build a project called DropThings but I am getting all these errors and I'm not sure how to resolve them. Can anyone lend a helping hand? I'm wondering if anyone else can build the website and if so, what steps it took you. Thanks in advance! Source Code: http://code.google.com/p/dropthings/ My Configuration: Visual Studio 2008 SP1 SQL 2005 (with the database loaded + Web.Config file configured) Microsoft Silverlight Projects 2008 Errors: Error File Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found. ...\Dropthings-v2.2.0\src\DashboardBusiness Build failed due to validation errors in ...\Dropthings-v2.2.0\src\DashboardDataAccess\DropthingsDataContext.dbml. Open the file and resolve the issues in the Error List, then try rebuilding the project. ...\Dropthings-v2.2.0\src\DashboardDataAccess\DropthingsDataContext.dbml Metadata file '...\Dropthings-v2.2.0\src\DashboardBusiness\bin\Debug\Dropthings.Business.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Activities Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Activities Metadata file '...\Dropthings-v2.2.0\src\Dropthings.Business.Activities\bin\Debug\Dropthings.Business.Activities.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Workflows Metadata file '...\Dropthings-v2.2.0\src\DashboardBusiness\bin\Debug\Dropthings.Business.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Workflows Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Workflows Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found Dropthings.Widget.Framework Metadata file '...\Dropthings-v2.2.0\src\DashboardBusiness\bin\Debug\Dropthings.Business.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Facade Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found. ...\Dropthings-v2.2.0\src\Dropthings.Business.Facade Metadata file '...\Dropthings-v2.2.0\src\DashboardDataAccess\bin\Debug\Dropthings.DataAccess.dll' could not be found Dropthings.Web.Framework Metadata file '...\Dropthings-v2.2.0\src\Dropthings.Business.Workflows\bin\Debug\Dropthings.Business.Workflows.dll' could not be found Dropthings.Web.Framework Metadata file '...\Dropthings-v2.2.0\src\Dropthings.Business.Activities\bin\Debug\Dropthings.Business.Activities.dll' could not be found Dropthings.Web.Framework Metadata file '...\Dropthings-v2.2.0\src\Dropthings.Widget.Framework\bin\Debug\Dropthings.Widget.Framework.dll' could not be found Dropthings.Web.Framework Metadata file '...\Dropthings-v2.2.0\src\Dropthings.Business.Facade\bin\Debug\Dropthings.Business.Facade.dll' could not be found Dropthings.Web.Framework Metadata file '...\Dropthings-v2.2.0\src\DashboardBusiness\bin\Debug\Dropthings.Business.dll' could not be found Dropthings.Web.Framework The type or namespace name 'Framework' does not exist in the namespace 'Dropthings.Web' (are you missing an assembly reference?) ...\Dropthings-v2.2.0\src\Dropthings\web.config

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• How do you Send More that 20 Parameters to a Stored Procedure Using ODP.Net?

  - by discwiz

  Switching from Microsofts Oracle Driver to ODP.NET version 10.2.0.100. After changing the data types to OracleDBTypes in a procedure, that worked perficetly using System.Data.OracleClient, the procedure fails if we try and pass in more that 20 parameters. The error returned is: ORA-06550: line 1, column 7: PLS-00306: wrong number or types of arguments in call to 'ADD_TARP_EVENT' ORA-06550: line 1, column 7: PL/SQL: Statement ignorede If we reduce the number of parameters to less than 20 it works. Is this a known issue? Thanks, Dave Here the code for creating the parameters: Shared Function CreateTarpEventCommand(ByVal aTarpEvent As TARPEventType) As OracleCommand Dim cmd As New OracleCommand With aTarpEvent cmd.Parameters.Add(New OracleParameter("I_facID_C", OracleDbType.Char)).Value = .FacilityShortName cmd.Parameters.Add(New OracleParameter("I_facName_VC", OracleDbType.Varchar2)).Value = .FacilityLongName cmd.Parameters.Add(New OracleParameter("I_client_VC", OracleDbType.Varchar2)).Value = .ComputerNameTarpIsRunningOn cmd.Parameters.Add(New OracleParameter("I_TARP_Version_VC", OracleDbType.Varchar2)).Value = .TarpVersionNumber cmd.Parameters.Add(New OracleParameter("I_NAS_Type_VC", OracleDbType.Varchar2)).Value = .FacilityNASSystemType cmd.Parameters.Add(New OracleParameter("I_Aircraft1_Callsign_VC", OracleDbType.Varchar2)).Value = .Aircraft1Callsign If .Aircraft1Type Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Aircraft1_Type_VC", OracleDbType.Varchar2)).Value = .Aircraft1Type End If If .Aircraft1Category Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Aircraft1_Cat_VC", OracleDbType.Varchar2)).Value = .Aircraft1Category End If cmd.Parameters.Add(New OracleParameter("I_Aircraft2_Callsign_VC", OracleDbType.Varchar2)).Value = .Aircraft2Callsign If .Aircraft2Type Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Aircraft2_Type_VC", OracleDbType.Varchar2)).Value = .Aircraft2Type End If If .Aircraft2Category Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Aircraft2_Cat_VC", OracleDbType.Varchar2)).Value = .Aircraft2Category End If If .SensorShortName Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Sensor_Name_VC", OracleDbType.Varchar2)).Value = .SensorShortName End If If .TarpConfigurationName Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_TARP_Config_Name_VC", OracleDbType.Varchar2)).Value = .TarpConfigurationName End If If .EntryCreatorID Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Create_VC", OracleDbType.Varchar2)).Value = .EntryCreatorID End If If .LogAction Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Log_Action_VC", OracleDbType.Varchar2)).Value = .LogAction End If cmd.Parameters.Add(New OracleParameter("I_TARP_Mode_VC", OracleDbType.Varchar2)).Value = .TarpOperatingMode cmd.Parameters.Add(New OracleParameter("I_Min_Loss_N", OracleDbType.Decimal)).Value = .ClosestMeasureOfLoSS If .MapName Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_MAP_NAME_VC", OracleDbType.Varchar2)).Value = .MapName End If If .TarpConfigurationFileHash Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_CONFIG_HASH_VC", OracleDbType.Varchar2)).Value = .TarpConfigurationFileHash End If Dim aDate As OracleDate = CType(.LossEventsMessages(0).LossEventTime, System.DateTime) cmd.Parameters.Add(New OracleParameter("I_FIRST_LOSS_EVENT_DATE", OracleDbType.Date)).Value = aDate cmd.Parameters.Add(New OracleParameter("I_FIRST_LOSS_EVENT_MS_N", OracleDbType.Int32)).Value = .LossEventsMessages(0).LossEventMilliSeconds If .ZippedMapFiles Is Nothing Then cmd.Parameters.Add(New OracleParameter("I_Map_File_BL", OracleDbType.Blob)).Value = .ZippedMapFiles End If cmd.Parameters.Add(New OracleParameter("I_TARP_Package_BL", OracleDbType.Blob)).Value = .ZippedTarpPackageWithoutMaps cmd.Parameters.Add(New OracleParameter("rs_RESULTS", OracleDbType.RefCursor)).Direction = ParameterDirection.Output End With Return cmd End Function And here is the code for executing the procedure: Dim workingDataSet As New DataSet Dim oracleConnection As New OracleConnection Dim cmd As New OracleCommand Dim oracleDataAdapter As New OracleDataAdapter Try Using oracleConnection oracleConnection.ConnectionString = System.Configuration.ConfigurationManager.AppSettings("MasterConnectionODT") cmd = HelperDB.CreateTarpEventCommand(TarpEvent) cmd.Connection = oracleConnection cmd.CommandText = "LOADER.ADD_TARP_EVENT" cmd.CommandType = CommandType.StoredProcedure Using oracleConnection oracleConnection.Open() Dim aTransation As OracleTransaction = oracleConnection.BeginTransaction(IsolationLevel.ReadCommitted) Try Using oracleDataAdapter oracleDataAdapter = New OracleDataAdapter(cmd) oracleDataAdapter.TableMappings.Add("Results", "rs_Max") oracleDataAdapter.Fill(workingDataSet) ....

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• Using nested Master Pages

  - by abatishchev

  Hi. I'm very new to ASP.NET, help me please understand MasterPages conception more. I have Site.master with common header data (css, meta, etc), center form (blank) and footer (copyright info, contact us link, etc). <%@ Master Language="C#" AutoEventWireup="true" CodeFile="Site.master.cs" Inherits="_SiteMaster" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="tagHead" runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" href="styles.css" type="text/css" /> </head> <body> <form id="frmMaster" runat="server"> <div> <asp:ContentPlaceHolder ID="holderForm" runat="server"></asp:ContentPlaceHolder> <asp:ContentPlaceHolder ID="holderFooter" runat="server">Some footer here</asp:ContentPlaceHolder> </div> </form> </body> </html> and I want to use second master page for a project into sub directory, which would contains SQL query on Page_Load for logging (it isn't necessary for whole site). <%@ Master Language="C#" AutoEventWireup="true" CodeFile="Project.master.cs" Inherits="_ProjectMaster" MasterPageFile="~/Site.master" %> <asp:Content ContentPlaceHolderID="holderForm" runat="server"> <asp:ContentPlaceHolder ID="holderForm" runat="server" EnableViewState="true"></asp:ContentPlaceHolder> </asp:Content> <asp:Content ContentPlaceHolderID="holderFooter" runat="server"> <asp:ContentPlaceHolder ID="holderFooter" runat="server" EnableViewState="true"></asp:ContentPlaceHolder> </asp:Content> But I have a problem: footer isn't displayed. Where is my mistake? Am I right to use second master page as super class for logging? Project page looks like this: <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" MasterPageFile="~/Project.master" %> <asp:Content ContentPlaceHolderID="holderForm" runat="server"> <p>Hello World!</p> </asp:Content> <asp:Content ContentPlaceHolderID="holderFooter" runat="Server"> Some footer content </asp:Content>

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• Core Data NSPredicate for relationships.

  - by Mugunth Kumar

  My object graph is simple. I've a feedentry object that stores info about RSS feeds and a relationship called Tag that links to "TagValues" object. Both the relation (to and inverse) are to-many. i.e, a feed can have multiple tags and a tag can be associated to multiple feeds. I referred to http://stackoverflow.com/questions/844162/how-to-do-core-data-queries-through-a-relationship and created a NSFetchRequest. But when fetch data, I get an exception stating, NSInvalidArgumentException unimplemented SQL generation for predicate What should I do? I'm a newbie to core data :( I know I've done something terribly wrong... Please help... Thanks -- NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; // Edit the entity name as appropriate. NSEntityDescription *entity = [NSEntityDescription entityForName:@"FeedEntry" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // Edit the sort key as appropriate. NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"authorname" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; NSEntityDescription *tagEntity = [NSEntityDescription entityForName:@"TagValues" inManagedObjectContext:self.managedObjectContext]; NSPredicate *tagPredicate = [NSPredicate predicateWithFormat:@"tagName LIKE[c] 'nyt'"]; NSFetchRequest *tagRequest = [[NSFetchRequest alloc] init]; [tagRequest setEntity:tagEntity]; [tagRequest setPredicate:tagPredicate]; NSError *error = nil; NSArray* predicates = [self.managedObjectContext executeFetchRequest:tagRequest error:&error]; TagValues *tv = (TagValues*) [predicates objectAtIndex:0]; NSLog(tv.tagName); // it is nyt here... NSPredicate *predicate = [NSPredicate predicateWithFormat:@"tag IN %@", predicates]; [fetchRequest setPredicate:predicate]; // Edit the section name key path and cache name if appropriate. // nil for section name key path means "no sections". NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"]; aFetchedResultsController.delegate = self; self.fetchedResultsController = aFetchedResultsController; --

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• H12 timeout error on Heroku

  - by snowangel

  Can anyone shed some light on what's causing this timeout error on Heroku (at 2012-07-08T08:58:33+00:00)? The docs say that it's because of some long running process. I've set config.assets.initialize_on_precompile = false in config/application.rb. EmBP-2:bc Emma$ heroku restart Restarting processes... done EmBP-2:bc Emma$ heroku logs --tail 2012-07-08T08:47:21+00:00 heroku[nginx]: 82.69.50.215 - - [08/Jul/2012:08:47:21 +0000] "GET /assets/application.js HTTP/1.1" 200 311723 "https://codicology.co.uk/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7" codicology.co.uk 2012-07-08T08:47:21+00:00 heroku[nginx]: 127.0.0.1 - - [08/Jul/2012:08:47:21 +0000] "GET /assets/application.js HTTP/1.0" 200 1311615 "https://codicology.co.uk/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7" codicology.co.uk 2012-07-08T08:51:32+00:00 heroku[slugc]: Slug compilation started 2012-07-08T08:54:05+00:00 heroku[api]: Release v145 created by [email protected] 2012-07-08T08:54:05+00:00 heroku[api]: Deploy 8814b2f by [email protected] 2012-07-08T08:54:05+00:00 heroku[web.1]: State changed from up to starting 2012-07-08T08:54:06+00:00 heroku[slugc]: Slug compilation finished 2012-07-08T08:54:09+00:00 heroku[web.1]: Stopping all processes with SIGTERM 2012-07-08T08:54:09+00:00 heroku[worker.1]: Stopping all processes with SIGTERM 2012-07-08T08:54:09+00:00 heroku[web.1]: Starting process with command `bundle exec unicorn -p 22429 -c ./config/unicorn.rb` 2012-07-08T08:54:10+00:00 app[worker.1]: [Worker(host:2046e0bf-e109-40f2-abdb-10f69d224483 pid:1)] Exiting... 2012-07-08T08:54:11+00:00 app[web.1]: I, [2012-07-08T08:54:11.320616 #1] INFO -- : reaped #<Process::Status: pid 8 exit 0> worker=1 2012-07-08T08:54:11+00:00 app[web.1]: I, [2012-07-08T08:54:11.376765 #1] INFO -- : master complete 2012-07-08T08:54:11+00:00 app[web.1]: I, [2012-07-08T08:54:11.376272 #1] INFO -- : reaped #<Process::Status: pid 5 exit 0> worker=0 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.011695 #1] INFO -- : worker=0 spawning... 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.011386 #1] INFO -- : listening on addr=0.0.0.0:22429 fd=3 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.017917 #5] INFO -- : worker=0 spawned pid=5 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.019309 #1] INFO -- : master process ready 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.018250 #5] INFO -- : Refreshing Gem list 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.016768 #1] INFO -- : worker=1 spawning... 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.020863 #8] INFO -- : Refreshing Gem list 2012-07-08T08:54:12+00:00 app[web.1]: I, [2012-07-08T08:54:12.020617 #8] INFO -- : worker=1 spawned pid=8 2012-07-08T08:54:12+00:00 app[worker.1]: SQL (2.9ms) UPDATE "delayed_jobs" SET locked_by = null, locked_at = null WHERE (locked_by = 'host:2046e0bf-e109-40f2-abdb-10f69d224483 pid:1') 2012-07-08T08:54:12+00:00 heroku[web.1]: Process exited with status 0 2012-07-08T08:54:13+00:00 heroku[web.1]: State changed from starting to up 2012-07-08T08:54:14+00:00 heroku[worker.1]: Process exited with status 0 2012-07-08T08:54:14+00:00 heroku[worker.1]: State changed from up to down 2012-07-08T08:54:14+00:00 heroku[worker.1]: State changed from down to starting 2012-07-08T08:54:20+00:00 heroku[worker.1]: Starting process with command `bundle exec rake jobs:work` 2012-07-08T08:54:20+00:00 heroku[worker.1]: State changed from starting to up 2012-07-08T08:54:28+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:54:28+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:54:28+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:54:28+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:54:33+00:00 app[web.1]: Starting the New Relic Agent. 2012-07-08T08:54:33+00:00 app[web.1]: Starting the New Relic Agent. 2012-07-08T08:54:33+00:00 app[web.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:54:33+00:00 app[web.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:54:34+00:00 app[web.1]: 2012-07-08T08:54:34+00:00 app[web.1]: 2012-07-08T08:54:34+00:00 app[web.1]: [DEVISE] Devise.use_salt_as_remember_token is deprecated and has no effect. Please remove it. 2012-07-08T08:54:34+00:00 app[web.1]: 2012-07-08T08:54:34+00:00 app[web.1]: [DEVISE] Devise.use_salt_as_remember_token is deprecated and has no effect. Please remove it. 2012-07-08T08:54:34+00:00 app[web.1]: 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant XLSX 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant XLSX 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:54:34+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:54:41+00:00 app[worker.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:10) 2012-07-08T08:54:41+00:00 app[worker.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:10) 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importadvancecsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpaymentcsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpurchasecsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importadvancecsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpaymentcsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpurchasecsv class 2012-07-08T08:54:45+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importsalecsv class 2012-07-08T08:54:46+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Profitarchive class 2012-07-08T08:54:46+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importsalecsv class 2012-07-08T08:54:46+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Profitarchive class 2012-07-08T08:54:46+00:00 app[web.1]: [paperclip] Duplicate URL for xml with :s3_eu_url. This will clash with attachment defined in Onixarchive class 2012-07-08T08:54:47+00:00 app[web.1]: [paperclip] Duplicate URL for xml with :s3_eu_url. This will clash with attachment defined in Onixarchive class 2012-07-08T08:54:48+00:00 app[web.1]: I, [2012-07-08T08:54:48.467693 #8] INFO -- : worker=1 ready 2012-07-08T08:54:48+00:00 app[web.1]: I, [2012-07-08T08:54:48.823800 #5] INFO -- : worker=0 ready 2012-07-08T08:54:48+00:00 app[worker.1]: Starting the New Relic Agent. 2012-07-08T08:54:48+00:00 app[worker.1]: New Relic Agent not running. 2012-07-08T08:54:48+00:00 app[worker.1]: [Worker(host:1eabe514-7ec9-43b0-835b-ff3bd23bc266 pid:1)] New Relic Ruby Agent Monitoring DJ worker host:1eabe514-7ec9-43b0-835b-ff3bd23bc266 pid:1 2012-07-08T08:54:48+00:00 app[worker.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:54:49+00:00 app[worker.1]: [Worker(host:1eabe514-7ec9-43b0-835b-ff3bd23bc266 pid:1)] Starting job worker 2012-07-08T08:57:54+00:00 heroku[web.1]: State changed from up to starting 2012-07-08T08:57:56+00:00 heroku[web.1]: Stopping all processes with SIGTERM 2012-07-08T08:57:57+00:00 app[web.1]: I, [2012-07-08T08:57:57.047386 #1] INFO -- : reaped #<Process::Status: pid 5 exit 0> worker=0 2012-07-08T08:57:57+00:00 app[web.1]: I, [2012-07-08T08:57:57.047753 #1] INFO -- : reaped #<Process::Status: pid 8 exit 0> worker=1 2012-07-08T08:57:57+00:00 app[web.1]: I, [2012-07-08T08:57:57.047999 #1] INFO -- : master complete 2012-07-08T08:57:57+00:00 heroku[worker.1]: Stopping all processes with SIGTERM 2012-07-08T08:57:58+00:00 heroku[web.1]: Process exited with status 0 2012-07-08T08:57:58+00:00 app[worker.1]: [Worker(host:1eabe514-7ec9-43b0-835b-ff3bd23bc266 pid:1)] Exiting... 2012-07-08T08:57:59+00:00 heroku[web.1]: Starting process with command `bundle exec unicorn -p 29766 -c ./config/unicorn.rb` 2012-07-08T08:58:01+00:00 app[worker.1]: SQL (27.9ms) UPDATE "delayed_jobs" SET locked_by = null, locked_at = null WHERE (locked_by = 'host:1eabe514-7ec9-43b0-835b-ff3bd23bc266 pid:1') 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.070527 #1] INFO -- : listening on addr=0.0.0.0:29766 fd=3 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.070782 #1] INFO -- : worker=0 spawning... 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.074498 #1] INFO -- : worker=1 spawning... 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.075702 #1] INFO -- : master process ready 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.076732 #5] INFO -- : worker=0 spawned pid=5 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.076957 #5] INFO -- : Refreshing Gem list 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.089022 #8] INFO -- : worker=1 spawned pid=8 2012-07-08T08:58:02+00:00 app[web.1]: I, [2012-07-08T08:58:02.089299 #8] INFO -- : Refreshing Gem list 2012-07-08T08:58:02+00:00 heroku[worker.1]: Process exited with status 0 2012-07-08T08:58:02+00:00 heroku[worker.1]: State changed from up to down 2012-07-08T08:58:02+00:00 heroku[worker.1]: State changed from down to starting 2012-07-08T08:58:02+00:00 heroku[web.1]: State changed from starting to up 2012-07-08T08:58:10+00:00 heroku[worker.1]: Starting process with command `bundle exec rake jobs:work` 2012-07-08T08:58:11+00:00 heroku[worker.1]: State changed from starting to up 2012-07-08T08:58:28+00:00 app[worker.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:10) 2012-07-08T08:58:28+00:00 app[worker.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/Rakefile:10) 2012-07-08T08:58:33+00:00 heroku[router]: Error H12 (Request timeout) -> GET codicology.co.uk/ dyno=web.1 queue= wait= service=30000ms status=503 bytes=0 2012-07-08T08:58:33+00:00 heroku[nginx]: 127.0.0.1 - - [08/Jul/2012:08:58:33 +0000] "GET / HTTP/1.0" 503 601 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7" codicology.co.uk 2012-07-08T08:58:33+00:00 heroku[nginx]: 82.69.50.215 - - [08/Jul/2012:08:58:33 +0000] "GET / HTTP/1.1" 503 601 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/534.52.7 (KHTML, like Gecko) Version/5.1.2 Safari/534.52.7" codicology.co.uk 2012-07-08T08:58:42+00:00 app[worker.1]: New Relic Agent not running. 2012-07-08T08:58:42+00:00 app[worker.1]: [Worker(host:b5fa9243-6f9b-4de4-8f64-adab767fe4b0 pid:1)] New Relic Ruby Agent Monitoring DJ worker host:b5fa9243-6f9b-4de4-8f64-adab767fe4b0 pid:1 2012-07-08T08:58:42+00:00 app[worker.1]: Starting the New Relic Agent. 2012-07-08T08:58:42+00:00 app[worker.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:58:43+00:00 app[worker.1]: [Worker(host:b5fa9243-6f9b-4de4-8f64-adab767fe4b0 pid:1)] Starting job worker 2012-07-08T08:58:56+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:58:56+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:58:56+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:58:56+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:6) 2012-07-08T08:59:02+00:00 app[web.1]: Starting the New Relic Agent. 2012-07-08T08:59:02+00:00 app[web.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:59:02+00:00 app[web.1]: Starting the New Relic Agent. 2012-07-08T08:59:02+00:00 app[web.1]: Installed New Relic Browser Monitoring middleware 2012-07-08T08:59:03+00:00 app[web.1]: 2012-07-08T08:59:03+00:00 app[web.1]: [DEVISE] Devise.use_salt_as_remember_token is deprecated and has no effect. Please remove it. 2012-07-08T08:59:03+00:00 app[web.1]: 2012-07-08T08:59:03+00:00 app[web.1]: 2012-07-08T08:59:03+00:00 app[web.1]: [DEVISE] Devise.use_salt_as_remember_token is deprecated and has no effect. Please remove it. 2012-07-08T08:59:03+00:00 app[web.1]: 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant XLSX 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant XLSX 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:59:04+00:00 app[web.1]: /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/http/mime_type.rb:102: warning: already initialized constant PDF 2012-07-08T08:59:22+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importadvancecsv class 2012-07-08T08:59:22+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpaymentcsv class 2012-07-08T08:59:22+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpurchasecsv class 2012-07-08T08:59:22+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importsalecsv class 2012-07-08T08:59:22+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Profitarchive class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importadvancecsv class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpaymentcsv class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importpurchasecsv class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Importsalecsv class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for csv with :s3_eu_url. This will clash with attachment defined in Profitarchive class 2012-07-08T08:59:23+00:00 app[web.1]: [paperclip] Duplicate URL for xml with :s3_eu_url. This will clash with attachment defined in Onixarchive class 2012-07-08T08:59:24+00:00 app[web.1]: [paperclip] Duplicate URL for xml with :s3_eu_url. This will clash with attachment defined in Onixarchive class 2012-07-08T08:59:25+00:00 app[web.1]: I, [2012-07-08T08:59:25.555052 #5] INFO -- : worker=0 ready 2012-07-08T08:59:25+00:00 app[web.1]: 2012-07-08T08:59:25+00:00 app[web.1]: 2012-07-08T08:59:25+00:00 app[web.1]: Started GET "/" for 82.69.50.215 at 2012-07-08 08:59:25 +0000 2012-07-08T08:59:26+00:00 app[web.1]: Processing by PagesController#home as HTML 2012-07-08T08:59:26+00:00 app[web.1]: I, [2012-07-08T08:59:26.043501 #8] INFO -- : worker=1 ready 2012-07-08T08:59:26+00:00 app[web.1]: Rendered pages/home.html.haml within layouts/application (5.7ms) 2012-07-08T08:59:26+00:00 app[web.1]: (1.1ms) SELECT COUNT(*) FROM "delayed_jobs" 2012-07-08T08:59:26+00:00 app[web.1]: Rendered layouts/_header.html.erb (4.2ms) 2012-07-08T08:59:26+00:00 app[web.1]: Rendered layouts/_footer.html.haml (1.4ms) 2012-07-08T08:59:26+00:00 app[web.1]: Completed 200 OK in 326ms (Views: 258.4ms | ActiveRecord: 65.2ms)

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• Mongodb performance on Windows

  - by Chris

  I've been researching nosql options available for .NET lately and MongoDB is emerging as a clear winner in terms of availability and support, so tonight I decided to give it a go. I downloaded version 1.2.4 (Windows x64 binary) from the mongodb site and ran it with the following options: C:\mongodb\bin>mkdir data C:\mongodb\bin>mongod -dbpath ./data --cpu --quiet I then loaded up the latest mongodb-csharp driver from http://github.com/samus/mongodb-csharp and immediately ran the benchmark program. Having heard about how "amazingly fast" MongoDB is, I was rather shocked at the poor benchmark performance. Starting Tests encode (small).........................................320000 00:00:00.0156250 encode (medium)........................................80000 00:00:00.0625000 encode (large).........................................1818 00:00:02.7500000 decode (small).........................................320000 00:00:00.0156250 decode (medium)........................................160000 00:00:00.0312500 decode (large).........................................2370 00:00:02.1093750 insert (small, no index)...............................2176 00:00:02.2968750 insert (medium, no index)..............................2269 00:00:02.2031250 insert (large, no index)...............................778 00:00:06.4218750 insert (small, indexed)................................2051 00:00:02.4375000 insert (medium, indexed)...............................2133 00:00:02.3437500 insert (large, indexed)................................835 00:00:05.9843750 batch insert (small, no index).........................53333 00:00:00.0937500 batch insert (medium, no index)........................26666 00:00:00.1875000 batch insert (large, no index).........................1114 00:00:04.4843750 find_one (small, no index).............................350 00:00:14.2812500 find_one (medium, no index)............................204 00:00:24.4687500 find_one (large, no index).............................135 00:00:37.0156250 find_one (small, indexed)..............................352 00:00:14.1718750 find_one (medium, indexed).............................184 00:00:27.0937500 find_one (large, indexed)..............................128 00:00:38.9062500 find (small, no index).................................516 00:00:09.6718750 find (medium, no index)................................316 00:00:15.7812500 find (large, no index).................................216 00:00:23.0468750 find (small, indexed)..................................532 00:00:09.3906250 find (medium, indexed).................................346 00:00:14.4375000 find (large, indexed)..................................212 00:00:23.5468750 find range (small, indexed)............................440 00:00:11.3593750 find range (medium, indexed)...........................294 00:00:16.9531250 find range (large, indexed)............................199 00:00:25.0625000 Press any key to continue... For starters, I can get better non-batch insert performance from SQL Server Express. What really struck me, however, was the slow performance of the find_nnnn queries. Why is retrieving data from MongoDB so slow? What am I missing? Edit: This was all on the local machine, no network latency or anything. MongoDB's CPU usage ran at about 75% the entire time the test was running. Edit 2: Also, I ran a trace on the benchmark program and confirmed that 50% of the CPU time spent was waiting for MongoDB to return data, so it's not a performance issue with the C# driver.

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• ASP.NET web forms as ASP.NET MVC

  - by lopkiju

  I am sorry for possible misleading about the title, but I have no idea for a proper title. Feel free to edit. Anyway, I am using ASP.NET Web Forms, and maybe this isn't how web forms is intended to be used, but I like to construct and populate HTML elements manually. It gives me more control. I don't use DataBinding and that kind of stuff. I use SqlConnection, SqlCommand and SqlDataReader, set SQL string etc. and read the data from the DataReader. Old school if you like. :) I do create WebControls so that I don't have to copy-paste every time I need some control, but mostly, I need WebControls to render as HTML so I can append that HTML into some other function that renders the final output with the control inside. I know I can render a control with control.RenderControl(writer), but this can only be done in (pre)Render or RenderContents overrides. For example. I have a dal.cs file where is stored all static functions and voids that communicate with the database. Functions mostly return string so that it can be appended into some other function to render the final result. The reason I am doing like this is that I want to separate the coding from the HTML as much as I can so that I don't do <% while (dataReader.Read()) % in HTML and display the data. I moved this into a CodeBehind. I also use this functions to render in the HttpHandler for AJAX response. That works perfectly, but when I want to add a control (ASP.NET Server control (.cs extension, not .ascx)) I don't know how to do that, so I see my self writing the same control as function that returns string or another function inside that control that returns string and replaces a job that would RenderContents do, so that I can call that function when I need control to be appended into a another string. I know this may not be a very good practice. As I see all the tutorials/videos about the ASP.NET MVC, I think it suite my needs as with the MVC you have to construct everything (or most of it) by your self, which I am already doing right now with web forms. After this long intro, I want to ask how can I build my controls so I can use them as I mentioned (return string) or I have to forget about server controls and build the controls as functions and used them that way? Is that even possible with ASP.NET Server Controls (.cs extension) or am I right when I said that I am not using it right. To be clear, I am talking about how to properly use a web forms, but to avoid data binders because I want to construct everything by my self (render HTML in Code Behind). Someone might think that I am appending strings like "some " + "string", which I am not. I am using StringBuilder for that so there's no slowness. Every opinion is welcome.

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• Why not .NET-style delegates rather than closures in Java?

  - by h2g2java

  OK, this is going to be my beating a dying horse for the 3rd time. However, this question is different from my earlier two about closures/delegates, which asks about plans for delegates and what are the projected specs and implementation for closures. This question is about - why is the Java community struggling to define 3 different types of closures when we could simply steal the whole concept of delegates lock, stock and barrel from our beloved and friendly neighbour - Microsoft. There are two non-technical conclusions I would be very tempted to jump into: The Java community should hold up its pride, at the cost of needing to go thro convoluted efforts, by not succumbing to borrowing any Microsoft concepts or otherwise vindicate Microsoft's brilliance. Delegates is a Microsoft patented technology. Alright, besides the above two possibilities, Q1. Is there any weakness or inadequacy in msft-styled delegates that the three (or more) forms of closures would be addressing? Q2. I am asking this while shifting between java and c# and it intrigues me that c# delegates does exactly what I needed. Are there features that would be implemented in closures that are not currently available in C# delegates? If so what are they because I cannot see what I need more than what C# delegates has adequately provided me? Q3. I know that one of the concerns about implementing closures/delegates in java is the reduction of orthogonality of the language, where more than one way is exposed to perform a particular task. Is it worth the level convolution and time spent to avoid delegates just to ensure java retains its level of orthogonality? In SQL, we know that it is advisable to break orthogonality by frequently adequately satisfying only the 2nd normal form. Why can't java be subjected to reduction of orthogonality and OO-ness for the sake of simplicity? Q4. The architecture of JVM is technically constrained from implementing .NET-styled delegates. If this reason WERE (subjunctive to emphasize unlikelihood) true, then why can't the three closures proposals be hidden behind a simple delegate keyword or annotation: if we don't like to use @delegate, we could use @method. I cannot see how delegate statement format is more complex than the three closure proposals.

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• SQLiteOpenHelper.getWriteableDatabase() null pointer exception on Android

  - by Drew Dara-Abrams

  I've had fine luck using SQLite with straight, direct SQL in Android, but this is the first time I'm wrapping a DB in a ContentProvider. I keep getting a null pointer exception when calling getWritableDatabase() or getReadableDatabase(). Is this just a stupid mistake I've made with initializations in my code or is there a bigger issue? public class DatabaseProvider extends ContentProvider { ... private DatabaseHelper databaseHelper; private SQLiteDatabase db; ... @Override public boolean onCreate() { databaseHelper = new DatabaseProvider.DatabaseHelper(getContext()); return (databaseHelper == null) ? false : true; } ... @Override public Uri insert(Uri uri, ContentValues values) { db = databaseHelper.getWritableDatabase(); // NULL POINTER EXCEPTION HERE ... } private static class DatabaseHelper extends SQLiteOpenHelper { public static final String DATABASE_NAME = "cogsurv.db"; public static final int DATABASE_VERSION = 1; public static final String[] TABLES = { "people", "travel_logs", "travel_fixes", "landmarks", "landmark_visits", "direction_distance_estimates" }; // people._id does not AUTOINCREMENT, because it's set based on server's people.id public static final String[] CREATE_TABLE_SQL = { "CREATE TABLE people (_id INTEGER PRIMARY KEY," + "server_id INTEGER," + "name VARCHAR(255)," + "email_address VARCHAR(255))", "CREATE TABLE travel_logs (_id INTEGER PRIMARY KEY AUTOINCREMENT," + "server_id INTEGER," + "person_local_id INTEGER," + "person_server_id INTEGER," + "start DATE," + "stop DATE," + "type VARCHAR(15)," + "uploaded VARCHAR(1))", "CREATE TABLE travel_fixes (_id INTEGER PRIMARY KEY AUTOINCREMENT," + "datetime DATE, " + "latitude DOUBLE, " + "longitude DOUBLE, " + "altitude DOUBLE," + "speed DOUBLE," + "accuracy DOUBLE," + "travel_mode VARCHAR(50), " + "person_local_id INTEGER," + "person_server_id INTEGER," + "travel_log_local_id INTEGER," + "travel_log_server_id INTEGER," + "uploaded VARCHAR(1))", "CREATE TABLE landmarks (_id INTEGER PRIMARY KEY AUTOINCREMENT," + "server_id INTEGER," + "name VARCHAR(150)," + "latitude DOUBLE," + "longitude DOUBLE," + "person_local_id INTEGER," + "person_server_id INTEGER," + "uploaded VARCHAR(1))", "CREATE TABLE landmark_visits (_id INTEGER PRIMARY KEY AUTOINCREMENT," + "server_id INTEGER," + "person_local_id INTEGER," + "person_server_id INTEGER," + "landmark_local_id INTEGER," + "landmark_server_id INTEGER," + "travel_log_local_id INTEGER," + "travel_log_server_id INTEGER," + "datetime DATE," + "number_of_questions_asked INTEGER," + "uploaded VARCHAR(1))", "CREATE TABLE direction_distance_estimates (_id INTEGER PRIMARY KEY AUTOINCREMENT," + "server_id INTEGER," + "person_local_id INTEGER," + "person_server_id INTEGER," + "travel_log_local_id INTEGER," + "travel_log_server_id INTEGER," + "landmark_visit_local_id INTEGER," + "landmark_visit_server_id INTEGER," + "start_landmark_local_id INTEGER," + "start_landmark_server_id INTEGER," + "target_landmark_local_id INTEGER," + "target_landmark_server_id INTEGER," + "datetime DATE," + "direction_estimate DOUBLE," + "distance_estimate DOUBLE," + "uploaded VARCHAR(1))" }; public DatabaseHelper(Context context) { super(context, DATABASE_NAME, null, DATABASE_VERSION); Log.v(Constants.TAG, "DatabaseHelper()"); } @Override public void onCreate(SQLiteDatabase db) { Log.v(Constants.TAG, "DatabaseHelper.onCreate() starting"); // create the tables int length = CREATE_TABLE_SQL.length; for (int i = 0; i < length; i++) { db.execSQL(CREATE_TABLE_SQL[i]); } Log.v(Constants.TAG, "DatabaseHelper.onCreate() finished"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { for (String tableName : TABLES) { db.execSQL("DROP TABLE IF EXISTS" + tableName); } onCreate(db); } } } As always, thanks for the assistance! -- Not sure if this detail helps, but here's LogCat showing the exception:

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• How to run a powershell script within a DOS batch file

  - by Don Vince

  How do I have a powershell script embedded within the same file as a DOS batch script? I know this kind of thing is possible in other scenarios: Embedding SQL in a DOS batch script using sqlcmd and a clever arrangements of goto's and comments at the beginning of the file In a *nix environment having a the name of the program you wish to run the script with on the first line of the script commented out e.g. #!/usr/local/bin/python There may not be a way to do this - in which case I will have to call the separate powershell script from the launching DOS script. One possible solution I've considered is to echo out the powershell script, and then run it. A good reason to not do this is that part of the reason to attempt this is to be using the advantages of the powershell environment without the pain of, for example, DOS escape characters I have some unusual constraints and would like to find an elegant solution. I suspect this question may be baiting responses of the variety: "why don't you try and solve this different problem instead." Suffice to say these are my constraints, sorry about that. Any ideas? Is there a suitable combination of clever comments and escape characters that will enable me to achieve this? Some thoughts on how to achieve this: A carat ^ at the end of a line in DOS is a continuation - like an underscore in VB An ampersand & in DOS typically is used to separate commands echo Hello & echo World results in 2 echos on separate lines %0 will give you the script that's currently running So something like this (if I could make it work) would be good: # & call powershell -psconsolefile %0 # & goto :EOF /* From here on in we're running nice juicy powershell code */ Write-Output "Hello World" Except... It doesn't work... because the extension of the file isn't as per powershell's liking: Windows PowerShell console file "insideout.bat" extension is not psc1. Windows PowerShell console file extension must be psc1. DOS isn't really altogether happy with the situation either - although it does stumble on '#' is not recognized as an internal or external command, operable program or batch file.

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• jBASE 4.1 Database Noobster Questions

  - by Steve Johnson

  I am a software developer with devlopment experience in C#, C++ .Net alongwith SQL Server 2005/08, Oracle and mysql. But somehow i dont get jBASE to work at Windows XP SP3 machine. My goal is setup user accounts, create database on a JBASE ainstallation, authenticate and backup/restore few table via a C++ program. And i dont need to do it with builtin backup/restore tools of jBASE. I am able to install jBASe 4.1 aling with all its accessories on my WINXPSP3 machine. I was able to run the jSlimserver and TEMENOUS server along with licnesing server. I was able to add the license key as well. But after that what i was supposed to do? i have no idea about it. The docs and online help doesnt answer a simple question of how to create a database! The google search results from the jbase site all go to the 404 Pages! Can a jBASE expert guide to the following steps: Create a jBASE database. Create users Authenticate via those users Connect to database Create tables and insert data. Connect via a C++ or C# program to connect to jBASE DB and backup/restore tables. I know that this is too much too ask but i dont get to get the JBASE system. I cant get it to work on my System somehow. Btw, jdc and jexloree doesnt seem to do anything. I have checked that enironmental variables for jBASE are setup correctly and i have verified them. There are no extra JRE or JDK installations on my system. Besides all that, only licensing client, slim server and temenous server seem to run and listen for connections and no other execuatable ever seems to work. A simple tutorial to achieve the objective will be highly appreciated. Also if anyone can point out the mistake that i have done or anything i might need to check, then please do so. I will be highly encouraged and obliged. Thanks Steve

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• Unity framework - creating & disposing Entity Framework datacontexts at the appropriate time

  - by TobyEvans

  Hi there, With some kindly help from StackOverflow, I've got Unity Framework to create my chained dependencies, including an Entity Framework datacontext object: using (IUnityContainer container = new UnityContainer()) { container.RegisterType<IMeterView, Meter>(); container.RegisterType<IUnitOfWork, CommunergySQLiteEntities>(new ContainerControlledLifetimeManager()); container.RegisterType<IRepositoryFactory, SQLiteRepositoryFactory>(); container.RegisterType<IRepositoryFactory, WCFRepositoryFactory>("Uploader"); container.Configure<InjectedMembers>() .ConfigureInjectionFor<CommunergySQLiteEntities>( new InjectionConstructor(connectionString)); MeterPresenter meterPresenter = container.Resolve<MeterPresenter>(); this works really well in creating my Presenter object and displaying the related view, I'm really pleased. However, the problem I'm running into now is over the timing of the creation and disposal of the Entity Framework object (and I suspect this will go for any IDisposable object). Using Unity like this, the SQL EF object "CommunergySQLiteEntities" is created straight away, as I've added it to the constructor of the MeterPresenter public MeterPresenter(IMeterView view, IUnitOfWork unitOfWork, IRepositoryFactory cacheRepository) { this.mView = view; this.unitOfWork = unitOfWork; this.cacheRepository = cacheRepository; this.Initialize(); } I felt a bit uneasy about this at the time, as I don't want to be holding open a database connection, but I couldn't see any other way using the Unity dependency injection. Sure enough, when I actually try to use the datacontext, I get this error: ((System.Data.Objects.ObjectContext)(unitOfWork)).Connection '((System.Data.Objects.ObjectContext)(unitOfWork)).Connection' threw an exception of type 'System.ObjectDisposedException' System.Data.Common.DbConnection {System.ObjectDisposedException} My understanding of the principle of IoC is that you set up all your dependencies at the top, resolve your object and away you go. However, in this case, some of the child objects, eg the datacontext, don't need to be initialised at the time the parent Presenter object is created (as you would by passing them in the constructor), but the Presenter does need to know about what type to use for IUnitOfWork when it wants to talk to the database. Ideally, I want something like this inside my resolved Presenter: using(IUnitOfWork unitOfWork = new NewInstanceInjectedUnitOfWorkType()) { //do unitOfWork stuff } so the Presenter knows what IUnitOfWork implementation to use to create and dispose of straight away, preferably from the original RegisterType call. Do I have to put another Unity container inside my Presenter, at the risk of creating a new dependency? This is probably really obvious to a IoC guru, but I'd really appreciate a pointer in the right direction thanks Toby

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• Tridion Installation

  - by Kevin Brydon

  I am currently upgrading an installation of Tridion from 5.3 to 2011 starting almost from scratch (aside from migrating the database), brand new virtual servers. I just want to ask for some advice on my current server setup... a sanity check. All servers are running Windows Server 2008. The pages on our website are all classic ASP. Database SQL Server cluster. The 5.3 database has been migrated using the DatabaseManager. This is pretty standard and works well (in test anyway). Content Manager A single server to run the Content Manager and the Publisher. There are around 10 people using it at any one time so not under a particularly heavy load. Content Data Store Filesystem located somewhere on the network. One directory for live and one for staging. Content Delivery Two servers (cd1 and cd2) each with the the following server roles installed. cd1 writes to a filesystem content data store for the live website, cd2 writes to the content data store for the staging website. Presentation Two public facing web servers (web1 and web2) serving both the live and staging websites. The web servers read directly from the content data store as its a filesystem. Each of the web servers have the Content Delivery Server installed so that I can use dynamic linking (and other features?). I've so far set up everything but the web servers. Any thoughts? edit Thanks to Ram S who linked me to a decent walkthrough, upvoted. I suppose I should have posed some questions as I didn't really ask a question. I guess I'm a little confused over the content deliver aspect. I have the Content Delivery split in two separate parts. cd1 and cd2 do the work of shifting information from the Content Manager to the Staging/Live web directories. web1 and web2 should do the work of serving the web pages to the outside world and will interact with the content data store (file system). Is this a correct setup? I need some parts of the Content Delivery on my web servers right? Theoretically I could get rid of the cd1 and cd2 servers and use web1 and web2 to do the deployment right? But I suspect this will put the web servers under unnecessary strain should there ever be a big publish. I've been reading the 2011 Installation Manual, Content Delivery section, and I'm finding it quite hard to get my head around!

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• Lambda Expression to be used in Select() query

  - by jameschinnock

  Hi, I am trying to build a lambda expression, containing two assignments (as shown further down), that I can then pass to a Queryable.Select() method. I am trying to pass a string variable into a method and then use that variable to build up the lambda expression so that I can use it in a LINQ Select query. My reasoning behind it is that I have a SQL Server datasource with many column names, I am creating a charting application that will allow the user to select, say by typing in the column name, the actual column of data they want to view in the y-axis of my chart, with the x-axis always being the DateTime. Therefore, they can essentially choose what data they chart against the DateTime value (it’s a data warehouse type app). I have, for example, a class to store the retrieved data in, and hence use as the chart source of: public class AnalysisChartSource { public DateTime Invoicedate { get; set; } public Decimal yValue { get; set; } } I have (purely experimentaly) built an expression tree for the Where clause using the String value and that works fine: public void GetData(String yAxis) { using (DataClasses1DataContext db = new DataClasses1DataContext()) { var data = this.FunctionOne().AsQueryable<AnalysisChartSource>(); //just to get some temp data in.... ParameterExpression pe = Expression.Parameter(typeof(AnalysisChartSource), "p"); Expression left = Expression.MakeMemberAccess(pe, typeof(AnalysisChartSource).GetProperty(yAxis)); Expression right = Expression.Constant((Decimal)16); Expression e2 = Expression.LessThan(left, right); Expression expNew = Expression.New(typeof(AnalysisChartSource)); LambdaExpression le = Expression.Lambda(left, pe); MethodCallExpression whereCall = Expression.Call( typeof(Queryable), "Where", new Type[] { data.ElementType }, data.Expression, Expression.Lambda<Func<AnalysisChartSource, bool>>(e2, new ParameterExpression[] { pe })); } } However……I have tried a similar approach for the Select statement, but just can’t get it to work as I need the Select() to populate both X and Y values of the AnalysisChartSource class, like this: .Select(c => new AnalysisChartSource { Invoicedate = c.Invoicedate, yValue = c.yValue}).AsEnumerable(); How on earth can I build such an expression tree….or….possibly more to the point…..is there an easier way that I have missed entirely?

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• How to eliminate one of my extra DropDownLists in C#?

  - by salvationishere

  I'm developing a C#/SQL web app in VS 2008 but for some reason I have one extra DropDownList. The very first dropdownlist displaying is empty. Can you help me identify the cause of this behavior? I'm baffled! An excerpt of my code is below. private DropDownList[] newcol; // Add DropDownList Control to Placeholder private DropDownList[] CreateDropDownLists() { DropDownList[] dropDowns = new DropDownList[NumberOfControls]; for (int counter = 0; counter < NumberOfControls; counter++) { DropDownList ddl = new DropDownList(); SqlDataReader dr2 = ADONET_methods.DisplayTableColumns(targettable); ddl.ID = "DropDownListID" + counter.ToString(); int NumControls = targettable.Length; DataTable dt = new DataTable(); dt.Load(dr2); ddl.DataValueField = "COLUMN_NAME"; ddl.DataTextField = "COLUMN_NAME"; ddl.DataSource = dt; ddl.SelectedIndexChanged += new EventHandler(ddlList_SelectedIndexChanged); ddl.DataBind(); ddl.AutoPostBack = true; ddl.EnableViewState = true; //Preserves View State info on Postbacks //ddlList.Style["position"] = "absolute"; //ddl.Style["top"] = 80 + "px"; //ddl.Style["left"] = 0 + "px"; dr2.Close(); dropDowns[counter] = ddl; } return dropDowns; } protected void ddlList_SelectedIndexChanged(object sender, EventArgs e) { DropDownList ddl = (DropDownList)sender; string ID = ddl.ID; } //Create display panel private void CreateDisplayPanel() { btnSubmit.Style.Add("top", "auto"); btnSubmit.Style.Add("left", "auto"); btnSubmit.Style.Add("position", "absolute"); newcol = CreateDropDownLists(); for (int counter = 0; counter < NumberOfControls; counter++) { pnlDisplayData.Controls.Add(newcol[counter]); pnlDisplayData.Controls.Add(new LiteralControl("<br><br><br>")); pnlDisplayData.Visible = true; pnlDisplayData.FindControl(newcol[counter].ID); } }

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• Gateway Page Between ASP and an ASP.NET Page

  - by ajdams

  I'll admit, I am pretty new with ASP .NET programming and I have been asked to take all our gateway pages (written in classic ASP) and make one universal gateway page to the few C# .NET applications we have (that I wrote). I tried searching here and the web and couldn't find much of anything describing a great way to do this and figured I was either not searching properly or was not properly naming what I am trying to do. I decided to to take one of the main gateway pages we had in classic ASP and use that as a base for my new gateway. Without boring you with a bunch of code I will summarize my gateway in steps and then can take advice/critique from there. EDIT: Basically what I am trying to do is go from a classic ASP page to a ASP .NET page and then back again. EDIT2: If my question is still unclear I am asking if what I have an the right start and if anyone has suggestions as to how this could be better. It can be as generic as need-be, not looking for a specific off-the-shelf code answer. My Gateway page: In the first part of the page I grab session variables and determine if the user is leaving or returning through the gateway: Code (in VB): uid = Request.QueryString("GUID") If uid = "" Then direction = "Leaving" End If ' Gather available user information. userid = Session("lnglrnregid") bankid = Session("strBankid") ' Return location. floor = Request.QueryString("Floor") ' The option chosen will determine if the user continues as SSL or not. ' If they are currently SSL, they should remain if chosen. option1 = Application(bankid & "Option1") If MID(option1, 6, 1) = "1" Then sslHttps = "s" End If Next I enter the uid into a database table (SQL-Server 2005) as a uniqueidentifier field called GUID. I omitted the stored procedure call. Lastly, I use the direction variable to determine if the user is leaving or returning and do redirects from there to the different areas of the site. Code (In VB again): If direction = "Leaving" Then Select Case floor Case "sscat", "ssassign" ' A SkillSoft course Response.Redirect("Some site here") Case "lrcat", "lrassign" ' A LawRoom course Response.Redirect("Some site here") Case Else ' Some other SCORM course like MindLeaders or a custom upload. Response.Redirect("Some site here") End Select Session.Abandon Else ' The only other direction is "Returning" ..... That's about it so far - so like I said, not an expert so any suggestions would be greatly appreciated!

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• DataTable identity column not set after DataAdapter.Update/Refresh on table with "instead of"-trigge

  - by Arno

  Within our unit tests we use plain ADO.NET (DataTable, DataAdapter) for preparing the database resp. checking the results, while the tested components themselves run under NHibernate 2.1. .NET version is 3.5, SqlServer version is 2005. The database tables have identity columns as primary keys. Some tables apply instead-of-insert/update triggers (this is due to backward compatibility, nothing I can change). The triggers generally work like this: create trigger dbo.emp_insert on dbo.emp instead of insert as begin set nocount on insert into emp ... select @@identity end The insert statement issued by the ADO.NET DataAdapter (generated on-the-fly by a thin ADO.NET wrapper) tries to retrieve the identity value back into the DataRow: exec sp_executesql N' insert into emp (...) values (...); select id, ... from emp where id = @@identity ' But the DataRow's id-Column is still 0. When I remove the trigger temporarily, it works fine - the id-Column then holds the identity value set by the database. NHibernate on the other hand uses this kind of insert statement: exec sp_executesql N' insert into emp (...) values (...); select scope_identity() ' This works, the NHibernate POCO has its id property correctly set right after flushing. Which seems a little bit counter-intuitive to me, as I expected the trigger to run in a different scope, hence @@identity should be a better fit than scope_identity(). So I thought no problem, I will apply scope_identity() instead of @@identity under ADO.NET as well. But this has no effect, the DataRow value is still not updated accordingly. And now for the best part: When I copy and paste those two statements from SqlServer profiler into a Management Studio query (that is including "exec sp_executesql"), and run them there, the results seem to be inverse! There the ADO.NET version works, and the NHibernate version doesn't (select scope_identity() returns null). I tried several times to verify, but to no avail. Of course this just shows the resultset coming from the database, whatever happens inside NHibernate and ADO.NET is another topic. Also, several session properties defined by T-SQL SET are different in the two scenarios (Management Studio query vs. application at runtime) This is a real puzzle to me. I would be happy about any insights on that. Thank you!

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• decrypt an encrypted value ?

  - by jim

  I have an old Paradox database (I can convert it to Access 2007) which contains more then 200,000 records. This database has two columns: the first one is named "Word" and the second one is named "Mean". It is a dictionary database and my client wants to convert this old database to ASP.NET and SQL. However, we don't know what key or method is used to encrypt or encode the "Mean" column which is in the Unicode format. The software itself has been written in Delphi 7 and we don't have the source code. My client only knows the credentials for logging in to database. The problem is decoding the Mean column. What I do have is the compiled windows application and the Paradox database. This software can decode the "Mean" column for each "Word" so the method and/or key is in its own compiled code(.exe) or one of the files in its directory. For example, we know that in the following row the "Zymurgy" exactly means "???? ??? ????? ?? ???? ????, ????? ?????" since the application translates it like that. Here is what the record looks like when I open the database in Access: Word Mean Zymurgy 5OBnGguKPdDAd7L2lnvd9Lnf1mdd2zDBQRxngsCuirK5h91sVmy0kpRcue/+ql9ORmP99Mn/QZ4= Therefore we're trying to discover how the value in the Mean column is converted to "???? ??? ????? ?? ???? ????, ????? ?????". I think the "Mean" column value in above row is encoded in Base64 string format, but decoding the Base64 string does not yet result in the expected text. The extensions for files in the win app directory are dll, CCC, DAT, exe (other than the main app file), SYS, FAM, MB, PX, TV, VAL. Any kind of help is appreciated. Additional information: guys! the creators are not that stupid to save the values only in encoded form. they're definitely encrypted them. so i guess we have to look for the key.

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• Oracle 9i Session Disconnections

  - by mlaverd

  [Cross-Posting from ServerFault] I am in a development environment, and our test Oracle 9i server has been misbehaving for a few days now. What happens is that we have our JDBC connections disconnecting after a few successful connections. We got this box set up by our IT department and handed over to. It is 'our problem', so options like 'ask you DBA' isn't going to help me. :( Our server is set up with 3 plain databases (one is the main dev db, the other is the 'experimental' dev db). We use the Oracle 10 ojdbc14.jar thin JDBC driver (because of some bug in the version 9 of the driver). We're using Hibernate to talk to the DB. The only thing that I can see that changed is that we now have more users connecting to the server. Instead of one developer, we now have 3. With the Hibernate connection pools, I'm thinking that maybe we're hitting some limit? Anyone has any idea what's going on? Here's the stack trace on the client: Caused by: org.hibernate.exception.GenericJDBCException: could not execute query at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) [hibernate3.jar:na] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) [hibernate3.jar:na] at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2235) [hibernate3.jar:na] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129) [hibernate3.jar:na] at org.hibernate.loader.Loader.list(Loader.java:2124) [hibernate3.jar:na] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401) [hibernate3.jar:na] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:363) [hibernate3.jar:na] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196) [hibernate3.jar:na] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1149) [hibernate3.jar:na] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102) [hibernate3.jar:na] ... Caused by: java.sql.SQLException: Io exception: Connection reset at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:829) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1049) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.T4CPreparedStatement.executeMaybeDescribe(T4CPreparedStatement.java:854) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1154) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3370) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3415) [ojdbc14.jar:Oracle JDBC Driver version - "10.2.0.4.0"] at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208) [hibernate3.jar:na] at org.hibernate.loader.Loader.getResultSet(Loader.java:1812) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQuery(Loader.java:697) [hibernate3.jar:na] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259) [hibernate3.jar:na] at org.hibernate.loader.Loader.doList(Loader.java:2232) [hibernate3.jar:na]

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• MySql multiple selects batching in .net

  - by Amith George

  I have a situation in my application. For each x-axis point in my chart, I am plotting 5 y-axis values. To calculate each of these 5 values, I need to make 4 different queries. Ie, for each x-axis point I need to fire 20 sql queries. Now, I need to plot 40 such points in the my chart. Its resulting in a pathetic performance where it takes close to a minute to get all the data back from the database. Each of 4 different queries consists of a join between 2 tables. One has only 6 rows. The other close to 10,000. Each of the 4 queries has different WHERE clauses, so they are different queries. For each point in the x-axis, only the values for the where clauses change. I have tried combining each of the 4 queries into one big string. Basically batch the four selects. These are again batched for each y-axis value. So, for each x-axis point, I am now firing one big command that consists of 20 different select statements. Technically, I should be experiencing a big performance boost, right? Instead of hitting the db 40x5x4 = 800 times, I am now hitting it just 40 times. But instead of taking 60 seconds, it taking 50-55 seconds... not much of a help. I am using MySql 5.1, and the 6.1 version of its .Net connector. What can I do to improve the performance? Edit: One of the 4 queries is as follows: SELECT SUM(TIME_TO_SEC(TIMEDIFF(T1.col2, T1.col1))* T2.col1 / (3600 *1000)) AS TotalTime FROM Table T1 JOIN Table T2 ON T1.col3 = T2.col3 WHERE T1.col4 = 'i' AND T1.col1 >= '2009-12-25 00:00:00' AND T1.col2 <= '2009-12-26 00:00:00'; The other 3 queries are similar, only the where clause changes slightly. This set of 4 queries is fired 5 times. The first 3 times against the join of table T1 and T2, passing in different values for col4. And the next two times against the join of table T3 and T2 passing in different values for col4. These 5 values are the y-axis values for a particular x-axis point. The data returned by all these queries is the same format. so, we tried doing a UNION ALL on all these queries. No substantial difference. One strange thing, however, after indexing the foreign key on the table T1 [while it contained over a lakh records], the queries were using the index, but they had become slower. At times, the queries would take double the time to return the data.

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• C# and NpgsqlDataAdapter returning a single string instead of a data table

  - by tme321

  I have a postgresql db and a C# application to access it. I'm having a strange error with values I return from a NpgsqlDataAdapter.Fill command into a DataSet. I've got this code: NpgsqlCommand n = new NpgsqlCommand(); n.Connection = connector; // a class member NpgsqlConnection DataSet ds = new DataSet(); DataTable dt = new DataTable(); // DBTablesRef are just constants declared for // the db table names and columns ArrayList cols = new ArrayList(); cols.Add(DBTablesRef.all); //all is just * ArrayList idCol = new ArrayList(); idCol.Add(DBTablesRef.revIssID); ArrayList idVal = new ArrayList(); idVal.Add(idNum); // a function parameter // Select builder and Where builder are just small // functions that return an sql statement based // on the parameters. n is passed to the where // builder because the builder uses named // parameters and sets them in the NpgsqlCommand // passed in String select = SelectBuilder(DBTablesRef.revTableName, cols) + WhereBuilder(n,idCol, idVal); n.CommandText = select; try { NpgsqlDataAdapter da = new NpgsqlDataAdapter(n); ds.Reset(); // filling DataSet with result from NpgsqlDataAdapter da.Fill(ds); // C# DataSet takes multiple tables, but only the first is used here dt = ds.Tables[0]; } catch (Exception e) { Console.WriteLine(e.ToString()); } So my problem is this: the above code works perfectly, just like I want it to. However, if instead of doing a select on all (*) if I try to name individual columns to return from the query I get the information I asked for, but rather than being split up into seperate entries in the data table I get a string in the first index of the data table that looked something like: "(0,5,false,Bob Smith,7)" And the data is correct, I would be expecting 0, then 5, then a boolean, then some text etc. But I would (obviously) prefer it to not be returned as just one big string. Anyone know why if I do a select on * I get a datatable as expected, but if I do a select on specific columns I get a data table with one entry that is the string of the values I'm asking for?

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• JAX-WS errors when SOAP body contains UTF-8 BOM

  - by Vinny Carpenter

  I have developed a Web Service using JAX-WS (v2.1.3 - Sun JDK 1.6.0_05) deployed on WebLogic 10.3 that works just fine when I use a Java client or SoapUI or other Web Services testing tools. I need to consume this service using 2005 Microsoft SQL Server Reporting Services and I get the following error Couldn't create SOAP message due to exception: XML reader error: unexpected character content SEVERE: Couldn't create SOAP message due to exception: XML reader error: unexpected character content: "?" com.sun.xml.ws.protocol.soap.MessageCreationException: Couldn't create SOAP message due to exception: XML reader error: unexpected character content: "?" at com.sun.xml.ws.encoding.SOAPBindingCodec.decode(SOAPBindingCodec.java:292) at com.sun.xml.ws.transport.http.HttpAdapter.decodePacket(HttpAdapter.java:276) at com.sun.xml.ws.transport.http.HttpAdapter.access$500(HttpAdapter.java:93) at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:432) at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244) at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:134) at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:129) at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:160) at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at javax.servlet.http.HttpServlet.service(HttpServlet.java:820) at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227) at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292) at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:175) at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3498) at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321) at weblogic.security.service.SecurityManager.runAs(Unknown Source) at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180) at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086) at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406) at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) Caused by: com.sun.xml.ws.streaming.XMLStreamReaderException: XML reader error: unexpected character content: "?" at com.sun.xml.ws.streaming.XMLStreamReaderUtil.nextElementContent(XMLStreamReaderUtil.java:102) at com.sun.xml.ws.encoding.StreamSOAPCodec.decode(StreamSOAPCodec.java:174) at com.sun.xml.ws.encoding.StreamSOAPCodec.decode(StreamSOAPCodec.java:296) at com.sun.xml.ws.encoding.StreamSOAPCodec.decode(StreamSOAPCodec.java:128) at com.sun.xml.ws.encoding.SOAPBindingCodec.decode(SOAPBindingCodec.java:287) ... 22 more If I use a HTTP proxy to sniff out what SSRS is sending to JAX-WS, I see EF BB BF as the beginning of the post body and JAX-WS doesn't like that. If I remove the special characters and resubmit the request using Fiddler, then the web-service invocation works. Why does JAX-WS blow up with the standard UTF-8 BOM? Is there a workaround to get past this issue? Any suggestions would be greatly appreciated. Thanks --Vinny

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• rails paperclip unable to access image from another view

  - by curiousCoder

  my app has an habtm relation b/w listings and categories. now from the categories index page, a user filters select box to view listings in the show page. now i am not able to access images attached to listings in the category show page. listing.rb attr_accessible :placeholder, :categories_ids has_and_belongs_to_many :categories has_attached_file :placeholder, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png", :url => "/system/:hash.:extension", :hash_secret => "longSecretString" categories controller def index @categories = Category.all end def show @categories = Category.find_by_sql ["select distinct l.* from listings l , categories c, categories_listings cl where c.id = cl.category_id and l.id = cl.listing_id and c.id in (?,?)" , params[:c][:id1] , params[:c][:id2]] end the sql just filters and displays the listings in show page where i can show its attributes, but cant access the placeholder. note the plural @categories in show categories show page <ul> <% @categories.each_with_index do |c, index| %> <% if index == 0 %> <li class="first"><%= c.place %></li> <%= image_tag c.placeholder.url(:thumb) %> <li><%= c.price %></li> <% else %> <li><%= c.place %></li> <li><%= c.price %></li> <%= image_tag c.placeholder.url(:thumb) %> <% end %> <% end %> </ul> Access image from different view in a view with paperclip gem ruby on rails this said to make the object plural and call a loop, wch shall allow to access the image. it does not work in this case. undefined method `placeholder' for #<Category:0x5c78640> but the amazing thing is, placeholder will be displayed as an array of all images for all the listings if used as suggested in that stackoverflow, wch is, obviously, not the way i prefer. where's the issue? what am i missing?

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• ISQLQuery using AddJoin not loading related instance

  - by Remi Despres-Smyth

  I've got a problem using an ISQLQuery with an AddJoin. The entity I'm trying to return is RegionalFees, which has a composite-id which includes a Province instance. (This is the the instance being improperly loaded.) Here's the mapping: <class name="Project.RegionalFees, Project" table="tblRegionalFees"> <composite-id name="Id" class="Project.RegionalFeesId, project" unsaved-value="any" access="property"> <key-many-to-one class="Project.Province, Project" name="Region" access="property" column="provinceId" not-found="exception" /> <key-property name="StartDate" access="property" column="startDate" type="DateTime" /> </composite-id> <property name="SomeFee" column="someFee" type="Decimal" /> <property name="SomeOtherFee" column="someOtherFee" type="Decimal" /> <!-- Other unrelated stuff --> </class> <class name="Project.Province, Project" table="trefProvince" mutable="false"> <id name="Id" column="provinceId" type="Int64" unsaved-value="0"> <generator class="identity" /> </id> <property name="Code" column="code" access="nosetter.pascalcase-m-underscore" /> <property name="Label" column="label" access="nosetter.pascalcase-m-underscore" /> </class> Here's my query method: public IEnumerable<RegionalFees> GetRegionalFees() { // Using an ISQLQuery cause there doesn't appear to be an equivalent of // the SQL HAVING clause, which would be optimal for loading this set const String qryStr = "SELECT * " + "FROM tblRegionalFees INNER JOIN trefProvince " + "ON tblRegionalFees.provinceId=trefProvince.provinceId " + "WHERE EXISTS ( " + "SELECT provinceId, MAX(startDate) AS MostRecentFeesDate " + "FROM tblRegionalFees InnerRF " + "WHERE tblRegionalFees.provinceId=InnerRF.provinceId " + "AND startDate <= ? " + "GROUP BY provinceId " + "HAVING tblRegionalFees.startDate=MAX(startDate))"; var qry = NHibernateSessionManager.Instance.GetSession().CreateSQLQuery(qryStr); qry.SetDateTime(0, DateTime.Now); qry.AddEntity("RegFees", typeof(RegionalFees)); qry.AddJoin("Region", "RegFees.Id.Region"); return qry.List<RegionalFees>(); } The odd behavior here is that when I call GetRegionalFees (whose goal is to load just the most recent fee instances per region), it all loads fine if the Province instance is a proxy. If, however, Province is not loaded as a transparent proxy, the Province instance which is part of RegionalFees' RegionalFeesId property has null Code and Region values, although the Id value is set correctly. It looks to me like I have a problem in how I'm joining the Province class - since if it's lazy loaded the id is set from tblRegionalFees, and it gets loaded independently afterwards - but I haven't been able to figure out the solution.

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