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  • ActiveRecordStore ruby

    - by Andy
    I've had two previous questions about active record store that all came down to the same thing. Here's what I want: I want to access the session at any time and see who is online right now and access their session variable from anywhere. I need this because: Users are separated into groups. If one person logs in he receives an api token that I receive from some third party site. If a person from the same group logs in he needs to have that same api token in his session. I cannot regenerate new api tokens on a per call basis. I think active record store is a perfect solution for me, however, I have a problem implementing it!!! InvalidAuthenticityToken keeps getting thrown because I used to use the default cookie store. Thus I made this script to delete cookies but it does not seem to work: In application controller after_filter :delete_cookie def delete_cookie puts "deleting cookies" cookies.to_hash.each_pair do |k, v| puts k cookies.delete(k) end end The only other response I got was to remove protect from forgery. http://stackoverflow.com/questions/2941664/activerecordstore-invalidauthenticitytoken

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  • Where does lucene .net cache the search results?

    - by Lanceomagnifico
    Hi, I'm trying to figure out where Lucene stores the cached query results, and how it's configured to do so - and how long it caches for. This is for an ASP.NET 3.5 solution. I'm getting this problem: If I run a search and sort the result by a particular product field, it seems to work the very first time each search and sort combination is used. If I then go in and change some product attributes, reindex and run the same search and sort, I get the products returned in the same order as the very first result. example Product A is named: foo Product B is named: bar For the first search, sort by name desc. This results in: Product A Product B Now mix up the data a bit: Change names to: Product A named: bar Product B named: foo reindex verify that the index contains the changes for these two products. search Result: Product A Product B Since I changed the alphabetical order of the names, I expected: Product B Product A So I think that Lucene is caching the search results. (Which, btw, is a very good thing.) I just need to know where/how to clear these results. I've tried deleting the index files and doing an IISreset to clear the memory, but it seems to have no effect. So I'm thinking there is another set of Lucene files outside of the indexes that Lucene uses for caching. EDIT I just found out that you must create the index for field you wish to sort on as un-tokenized. I had the field as tokenized, so sorting didn't work.

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  • VERY strange stack overflow in C++ program

    - by mav
    Hello, I wrote a program some time ago (Mac OS X, C++, SDL, FMOD) and it perfomed rather good. But lately I wanted to extend its functionality and added some more code to it. And now, when I run it and try to test the new functionality, the program crashes with SIGABRT. Looking into debugger, on function stack I see: _kill kill$UNIX2003 raise __abort __stack_chk_fail odtworz <-- my function that was was modified As far as I know, "__stack_chk_fail" indicates a stack overflow. But that's not the weirdest thing about it. In this function "odtworz", I have some code like this: ... koniec = 0; while ( koniec == 0 ) { ... if (mode == 1) { ... } else if (mode == 2) { ... } else if (mode == 3) { ... } } mode is a global variable and is set to value "2" in a function before. And now imagine - if I delete the third if statement (mode == 3) which never gets executed in this mode, the program doesn't crash! Deleting code that doesn't even get to be executed helps the situation! Now, I don't want to delete this code because it's for other mode of my program. And it works fine there. So any hints where I can search? What could be possibly wrong with this?

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  • Grails beginner problem "Failed to invoke Servlet 2.5"

    - by A Lion
    I'm trying to get Groovy on Grails set up on a Snow Leopard machine. I followed all the grails.com install directions and am trying to start the application from Grails: A Quick-Start Guide by Dave Klein. I ran grails create-app TekDays with no apparent problems and was able to cd to the TekDays folder, but when I try to run grails run-app I get the following: Welcome to Grails 1.3.1 - http://grails.org/ Licensed under Apache Standard License 2.0 Grails home is set to: /grails Base Directory: /apps/TekDays Resolving dependencies... Dependencies resolved in 4469ms. Running script /grails/scripts/RunApp.groovy Environment set to development [delete] Deleting directory /Users/name/.grails/1.3.1/projects/TekDays/tomcat Running Grails application.. 2010-05-24 21:42:39,559 [main] ERROR context.GrailsContextLoader - Error executing bootstraps: Failed to invoke Servlet 2.5 getContextPath method java.lang.IllegalStateException: Failed to invoke Servlet 2.5 getContextPath method at org.grails.tomcat.TomcatServer.start(TomcatServer.groovy:164) at grails.web.container.EmbeddableServer$start.call(Unknown Source) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy:159) at _GrailsRun_groovy$_run_closure5_closure12.doCall(_GrailsRun_groovy) at _GrailsSettings_groovy$_run_closure10.doCall(_GrailsSettings_groovy:282) at _GrailsSettings_groovy$_run_closure10.call(_GrailsSettings_groovy) at _GrailsRun_groovy$_run_closure5.doCall(_GrailsRun_groovy:150) at _GrailsRun_groovy$_run_closure5.call(_GrailsRun_groovy) at _GrailsRun_groovy.runInline(_GrailsRun_groovy:116) at _GrailsRun_groovy.this$4$runInline(_GrailsRun_groovy) at _GrailsRun_groovy$_run_closure1.doCall(_GrailsRun_groovy:59) at RunApp$_run_closure1.doCall(RunApp.groovy:33) at gant.Gant$_dispatch_closure5.doCall(Gant.groovy:381) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy:415) at gant.Gant$_dispatch_closure7.doCall(Gant.groovy) at gant.Gant.withBuildListeners(Gant.groovy:427) at gant.Gant.this$2$withBuildListeners(Gant.groovy) at gant.Gant$this$2$withBuildListeners.callCurrent(Unknown Source) at gant.Gant.dispatch(Gant.groovy:415) at gant.Gant.this$2$dispatch(Gant.groovy) at gant.Gant.invokeMethod(Gant.groovy) at gant.Gant.executeTargets(Gant.groovy:590) at gant.Gant.executeTargets(Gant.groovy:589) Caused by: java.lang.NoSuchMethodException: javax.servlet.ServletContext.getContextPath() at java.lang.Class.getMethod(Class.java:1605) ... 23 more I've googled every derivative of "Failed to invoke Servlet 2.5" that I can think of, but have thus far been unable to find anything that helps me understand, yet alone resolve, the error. Any advice to help me resolve this would be very much appreciated!

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  • Switching from ListView to VirtualStringTree

    - by Jeff
    Hey S.O! I am trying to build my projects with a VirtualStringTree rather than a Listview, because of the vast speed difference. The thing is, even after looking thru the demo's, I just can't figure out exactly how I would use it as a ListView. Like, adding, deleting, and basically just working with ListView items is so easy, but when I look at the VT, it gets almost too complicated. All I am looking for, is a VT that looks like a ListView, with subitems etc. Here are some routines using the ListView, that I would like to use with VT (This is just a pseudo example: procedure Add; begin with ListView.Items.Add do Begin Caption := EditCaption.Text; SubItems.Add(EditSubItem.Text): End; end; Procedure ReadItem(I : Integer); begin ShowMessage(ListView.Items[I].Caption); ShowMessage(ListView.Items[I].SubItems[0]); end; Of course, also the Delete function, but since thats like 1 line, I didnt bother :P Could anyone maybe translate the above examples into using a ListView style VT? Thanks!

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  • Error in ASP.NET MVC 2 View after Upgrading from ASP.NET 4.0 RC to RTM

    - by Chris
    In my View, I am trying to loop through a list in a LINQ object that as part of my View Model. This worked fine earlier today with the VS2010 RC and the .NET 4.0 RC. <% if (Model.User.RoleList.Count > 0 ) { %> <% foreach (var role in Model.User.RoleList) { %> <%: role.Name %><br /> <% } %> <% } else { %> <em>None</em><br /> <% } %> It used to happily spew out a list of the role names. No data or code has changed. Simply the software upgrades from RC to RTM. The error I am getting is this: \Views\Users\Details.aspx(67): error CS0012: The type 'System.Data.Linq.EntitySet`1' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. But System.Data.Linq IS referenced. I see it there in the references list. I tried deleting it and re-adding it but I get the same error. Any ideas?

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  • Python MySQL wrong architecture error

    - by phoebebright
    I've been at this for some time and read many sites on the subject. suspect I have junk lying about causing this problem. But where? This is the error when I import MySQLdb in python: >>> import MySQLdb /Library/Python/2.6/site-packages/MySQL_python-1.2.3c1-py2.6-macosx-10.6-universal.egg/_mysql.py:3: UserWarning: Module _mysql was already imported from /Library/Python/2.6/site-packages/MySQL_python-1.2.3c1-py2.6-macosx-10.6-universal.egg/_mysql.pyc, but /Users/phoebebr/Downloads/MySQL-python-1.2.3c1 is being added to sys.path Traceback (most recent call last): File "<stdin>", line 1, in <module> File "MySQLdb/__init__.py", line 19, in <module> import _mysql File "build/bdist.macosx-10.6-universal/egg/_mysql.py", line 7, in <module> File "build/bdist.macosx-10.6-universal/egg/_mysql.py", line 6, in __bootstrap__ ImportError: dlopen(/Users/phoebebr/.python-eggs/MySQL_python-1.2.3c1-py2.6-macosx-10.6-universal.egg-tmp/_mysql.so, 2): no suitable image found. Did find: /Users/phoebebr/.python-eggs/MySQL_python-1.2.3c1-py2.6-macosx-10.6-universal.egg-tmp/_mysql.so: mach-o, but wrong architecture I'm trying for 64 bit so checked here: file $(which python) /usr/bin/python: Mach-O universal binary with 3 architectures /usr/bin/python (for architecture x86_64): Mach-O 64-bit executable x86_64 /usr/bin/python (for architecture i386): Mach-O executable i386 /usr/bin/python (for architecture ppc7400): Mach-O executable ppc file $(which mysql) /usr/local/mysql/bin/mysql: Mach-O 64-bit executable x86_64 Have set my default version of python to 2.6 python Python 2.6.1 (r261:67515, Feb 11 2010, 00:51:29) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Tried deleting build directory and python setup.py clean Renamed Python/2.5/site-packages so it could not try and pick that up. Run out of ideas. Any suggestions?

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  • powershell errors on remove-item command

    - by Lachlan
    Hi, I've written a powershell script which removes folders more than 7 days old. It seems to be removing the folders, but for some reason its giving me errors. I was wondering if anyone might be able to tell me why? The script is... $rootBackupFolder = "\server\share" get-childitem $rootBackupFolder | where {$.PSIsContainer -AND $.Name -match ("^CVSRepository_(19|20)[0-9]0-9(0[1-9]|[12][0-9]|3[01])$") -AND $_.LastWriteTime -le (Get-Date).AddDays(-7)} | remove-item -recurse -force Their are 2 errors I get, this first is this one... (Get-Date).AddDays(-7)} | remove-item <<<< -recurse -force Remove-Item : Cannot remove item \server\share\CVSRepository_20100305\somesubfolder\sumotherfolder: Could not find a part of the path '\server\share\CVSRepository_20100305\somesubfolder\sumotherfolder'. The other error is this... (Get-Date).AddDays(-7)} | remove-item <<<< -recurse -force Remove-Item : Cannot remove item \server\share\CVSRepository_2010031 2\somesubfolder\: Access to the path 'Rdl' is denied.At C:\CVSRepository_BackupScript\Backup.ps1:43 char:38+ (Get-Date).AddDays(-7)} | remove-item <<<< -recurse -force Any ideas? The script is running under a domain account which has privs to delete the remote folders. And in fact it is indeed deleting the folders! But giving me errors... Thanks, Lachlan

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  • Multiple CodeSnippet in an XML .snippet file

    - by Frinavale
    I'm attempting to supplement the help features for my code by providing other developers with code snippets. These produce skeletons of code which demonstrate how to use/call my classes or methods. I've created a .snippet file and have placed it in the "%Visual Studio Folder%\Code Snippets\Visual Basic\My Snippets" folder. I've used the Code Snippets Manager and ensured that it included this folder so that I can access the snippets. Everything works well when I have 1 CodeSnippet tag within the root CodeSnippets tag.... When I add more than one CodeSnippet tag to the file (each with their own title, and their own code example) I'm experiencing something strange. The first CodeSnippet I've added contains code for adding something to my system, the second contains code for editing something in my system, and the third deleting something from the system. When I use the code snippet by right clicking and selecting "Insert Code Snippet", only the first code snippet in the file shows up as an option. When I select it, the code in the first CodeSnippet is inserted....but so is the code within the other CodeSnippet tags. Do you have to have a separate XML .snippet file for each code snippet you want to make available? After reading through MSDN about creating Code Snippets I was under the impression that this could all be done within one file. It seems that I'm not understanding something very basic here and would love to find the answer but apparently Code Snippets are under used so finding the answer has proven to be a little trickier than I first thought it would be. Thanks, -Frinny

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  • Ant target generate empty suite xml file

    - by user200317
    I am using ant for my project and I have been trying to generate JUnit report using ant target. The problem I run in to is that at the end of the execution my TESTS-TestSuites.xml is empty. But all the other individual test xml files have data. And due to this my html reports are empty, in the sense results shows "0". Here is my ant target <!-- JUnit Reporting --> <target name="test-report" depends="build-all" description="Generate Test Results as HTML"> <taskdef name="junitreport" classname="org.apache.tools.ant.taskdefs.optional.junit.XMLResultAggregator"/> <junit printsummary="on" haltonfailure="off" haltonerror="off" fork="yes"> <batchtest fork="yes" todir="${test.reports}" filtertrace="on"> <fileset dir="${build.classes}" includes="**/Test*Selenium.class"/> </batchtest> <formatter type="plain" usefile="false"/> <formatter type="xml" usefile="true"/> <classpath> <path refid="classpath"/> <path refid="application"/> </classpath> </junit> <echo message="running JUnit Report" /> <junitreport todir="${test.reports}"> <fileset dir="${test.reports}"> <include name="Test-*.xml" /> </fileset> <report format="frames" todir="${test.reports.html}" /> </junitreport> </target> This is what I get as ant print summary, [junitreport] Processing C:\YukonSelenium\reports\TESTS-TestSuites.xml to C:\DOCUME~1\user\LOCALS~1\Temp\null1848051184 [junitreport] Loading stylesheet jar:file:/C:/DevApps/apache-ant-1.7.1/lib/ant junit.jar!/org/apache/tools/ant/taskdefs/optional/junit/xsl/junit-frames.xsl [junitreport] Transform time: 859ms [junitreport] Deleting: C:\DOCUME~1\user\LOCALS~1\Temp\null1848051184 Here's how junit report looks like http://www.freeimagehosting.net/image.php?43dd69d3b8.jpg Thanks in advance,

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  • MSI wrapper for msdeploy?

    - by Nate
    Just moved to vs2010 and found that deployment is quite different. The old way I did things (vs2008) was as follows: 1) I right-click on my web app and "Add web deployment project" 2) Start a web setup project, dump that web deployment project output in it, and add any custom installer actions (connection strings or other user input) as necessary using the custom installer class. Easy! Now that I don't have the "Add web deployment project" option (or can't find it!?!?), msdeploy seems to be the thing to do. I have successfully got this to work via command line, but I still need some custom actions. In this example, we have separated our web services deployment from our UI deployment (Silverlight) so that they can be hosted separately or together. So... during/after install I need to know from the user where the web services are located. So I tried this: 1) Start a web setup project, and include all of the deploy package files (.deploy.cmd, /setparameters.xml, etc) 2) Gather user input in my custom installer class, and shell execute the deploy.cmd. Problem is... the deploy fails on deleting the zip file since it's use by another process (I assume it's my installer). Anyone have any ideas on how to get around this? Or is there a better way to accomplish this task? Any input would be appreciated! Nate

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  • Silverlight 3 - How to "refresh" a DataGrid content?

    - by Josimari Martarelli
    I have the following scenery: 1 using System; 2 using System.Windows; 3 using System.Windows.Controls; 4 using System.Windows.Documents; 5 using System.Windows.Ink; 6 using System.Windows.Input; 7 using System.Windows.Media; 8 using System.Windows.Media.Animation; 9 using System.Windows.Shapes; 10 using System.Collections.Generic; 11 12 namespace refresh 13 { 14 public partial class MainPage : UserControl 15 { 16 17 List c = new List(); 18 19 public MainPage() 20 { 21 // Required to initialize variables 22 InitializeComponent(); 23 c.Add(new Customer{ _nome = "Josimari", _idade = "29"}); 24 c.Add(new Customer{_nome = "Wesley", _idade = "26"}); 25 c.Add(new Customer{_nome = "Renato",_idade = "31"}); 26 27 this.dtGrid.ItemsSource = c; 28 } 29 30 private void Button_Click(object sender, System.Windows.RoutedEventArgs e) 31 { 32 c.Add(new Customer{_nome = "Maiara",_idade = "18"}); 33 } 34 35 } 36 37 public class Customer 38 { 39 public string _nome{get; set;} 40 public string _idade{get; set;} 41 } 42 } Where, dtGrid is my DataGrid control... The Question is: How to get the UI Updated after adding one more register to my list. I get to solve it setting the DataGrid's Item Source to "" and then setting to the list of Customer objects again, like that: 1 private void Button_Click(object sender, System.Windows.RoutedEventArgs e) 2 3 { 4 5 c.Add(new Customer{_nome = "Maiara",_idade = "18"}); 6 7 this.dtGrid.ItemsSource=""; 8 9 this.dtGrid.ItemsSource=c; 10 11 } 12 Is there a way to get the UI updated or the datagrid's itemsSource refreshed automatically after updating, altering or deleting an item from the list c ? Thank you, Josimari Martarelli

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  • Don't Understand Sql Server Error

    - by Jonathan Wood
    I have a table of users (User), and need to create a new table to track which users have referred other users. So, basically, I'm creating a many-to-many relation between rows in the same table. So I'm trying to create table UserReferrals with the columns UserId and UserReferredId. I made both columns a compound primary key. And both columns are foreign keys that link to User.UserID. Since deleting a user should also delete the relationship, I set both foreign keys to cascade deletes. When the user is deleted, any related rows in UserReferrals should also delete. But this gives me the message: 'User' table saved successfully 'UserReferrals' table Unable to create relationship 'FK_UserReferrals_User'. Introducing FOREIGN KEY constraint 'FK_UserReferrals_User' on table 'UserReferrals' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints. Could not create constraint. See previous errors. I don't get this error. A cascading delete only deletes the row with the foreign key, right? So how can it cause "cycling cascade paths"? Thanks for any tips.

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  • Design patter to keep track UITableView rows correspondance to underlying data in constant time.

    - by DenNukem
    When my model changes I want to animate changes in UITableView by inserting/deleting rows. For that I need to know the ordinal of the given row (so I can construct NSIndexPath), which I find hard to do in better-than-linear time. For example, consider that I have a list of addressbook entries which are manualy sorted by the user, i.e. there is no ordering "key" that represents the sort order. There is also a corresponding UITableView that shows one row per addressbook entry. When UITableView queries the datasource I query the NSMUtableArray populated with my entries and return required data in constant time for each row. However, if there is a change in underlying model I am getting a notification "Joe Smith, id#123 has been removed". Now I have a dilemma. A naive approach would be to scan the array, determine the index at which Joe Smith is and then ask UITableView to remove that precise row from the view, also removing it form the array. However, the scan will take linear time to finish. Now I could have an NSDictionary which allows me to find Joe Smith in constant time, but that doesn't do me a lot of good because I still need to find his ordinal index within the array in order to instruct UITableView to remove that row, which is again a linear search. I could further decide to store each object's ordinal inside the object itself to make it constant, but it will become outdated after first such update as all subsequent index values will have changed due to removal of an object. So what is the correct design pattern to accurately reflect model changes in the UITableView in costant (or at least logarithmic) time?

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  • LINQ to SQL: filter nested objects with soft deletes

    - by Alex
    Hello everyone, I'm using soft deleting in my database (IsDeleted field). I'm actively using LoadWith and AssociateWith methods to retrieve and filter nested records. The thing is AssociateWith only works with properties that represents a one-to-many relationship. DataLoadOptions loadOptions = new DataLoadOptions(); loadOption.LoadWith<User>(u = > u.Roles); loadOption.AssociateWith<User>(u = > u.Roles.Where(r = > !r.IsDeleted)); In the example above I just say: I want to retrieve users with related (undeleted) roles. But when I have one-to-one relationship, e.g. Document - File (the only one file is related to the document) I'm unable to filter soft deleted object: DataLoadOptions loadOptions = new DataLoadOptions(); loadOption.LoadWith<Document>(d = > d.File); // the next certainly won't work loadOption.AssociateWith<File>(f = > !f.IsDeleted); So, is there any idea how to filter records within the one-to-one relationship? Thanks!

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  • Strange - Clicking Update button doesn’t cause a postback due to <!-- tag

    - by AspOnMyNet
    If I define the following template inside DetailsView, then upon clicking an Update or Insert button, the page is posted back to the server: <EditItemTemplate> <asp:TextBox ID="txtDate" runat="server" Text='<%# Bind("Date") %>'></asp:TextBox> <asp:CompareValidator ID="valDateType" runat="server" ControlToValidate="txtDate" Type="Date" Operator="DataTypeCheck" Display="Dynamic" >*</asp:CompareValidator> </EditItemTemplate> If I remove CompareValidator control from the above code by simply deleting it, then page still gets posted back.But if instead I remove CompareValidator control by enclosing it within <!-- --> tags, then for some reason clicking an Update or Insert button doesn’t cause a postback...instead nothing happens: <EditItemTemplate> <asp:TextBox ID="txtDate" runat="server" Text='<%# Bind("Date") %>'></asp:TextBox> <!-- <asp:CompareValidator ID="valDateType" runat="server" ControlToValidate="txtDate" Type="Date" Operator="DataTypeCheck" Display="Dynamic" >*</asp:CompareValidator> --> </EditItemTemplate> </EditItemTemplate> Any idea why page doesn't get posted back? thanx

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  • Android USB driver for Xperia X10a

    - by mlohbihler
    I've been trying for a couple hours now, and have hit all of the sites Google found, but i cannot get the Android USB driver on my XP box to talk to my new Xperia X10a. I found the lines that some kind soul posted, and has been syndicated repeated, but they don't work for me. The idea is to add them to the Google.NTx86 and Google.NTamd64 sections of the android_winusb.inf file: ;Xperia X10 %SingleAdbInterface% = USB_Install, USB\VID_0FCE&PID_E12E %CompositeAdbInterface% = USB_Install, USB\VID_0FCE&PID_E12E&MI_01 I tried a number of variations of the first line, including "Sony Ericsson X10a", which is what XP shows me in both the "found new hardware" wizard and the device manager, but no luck. The result is always the same. Here are my steps: Plug in the phone via USB "found new hardware wizard" appears Choose "No, not this time" and "next" Choose "Install from a list or specific location..." and "next" Choose "Search for best driver...", check "Include this location...", and browse for the "usb_driver" folder in the Android SDK installation. Click "next" It does a quick search and then says "Cannot install this hardware", "... because the wizard cannot find the necessary software". I've tried more things that i can recall now, including deleting registry entries, but it just won't work. Any help would be appreciated at this point. Regards, m@

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  • Android media thumbnails. Serious issues?

    - by Ralphleon
    I've been playing with android's thumbnails for a while now, and I've seen some inconsistencies that make me want to scream. My goal is to have a simple list of all Images (and a separate list for video) with the thumbnail and filename. Device: HTC Evo (fresh from Google I/o) First off: http://androidsamples.blogspot.com/2009/06/how-to-display-thumbnails-of-images.html That code doesn't seem to work at all, thumbnails are duplicated... some with the "mirror" effect and some without. Also some won't load and just display a black square. I've tried rebuilding the thumbnails by deleting the "alblum thumbs" directory from the SD card. HTC's gallery application seem to show everything fine. This approach seems to work: Bitmap thumb = MediaStore.Images.Thumbnails.getThumbnail( getContentResolver(), id, MediaStore.Video.Thumbnails.MICRO_KIND, null); imageView.setImageBitmap(curThumb); where id is the original images id and imageView is some image view. This is great! But, strangely, way too slow to be used inside a SimpleViewBinder. Next approach: String [] proj = {MediaStore.Images.Thumbnails._ID}; Cursor c = managedQuery(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, proj, MediaStore.Images.Thumbnails.IMAGE_ID + "=" +id , null, null); if (c != null && c.moveToFirst()) { Uri thumb = Uri.withAppendedPath(mThumbUri,c.getLong(0)+""); imageView.setImageURI(thumb); } I should explain that I feel the needed WHERE condition is required because there doesn't seem to be any guarantee that your uri will have the same ID for both a thumbnail and its parent image. This works for all of the current images, but as soon as I start adding pictures with the camera they show up as blank! Debugging shows a dreaded: SkImageDecoder::Factory returned null error and the URI is returned as invalid. These are the same images that work with the previous call. Can anyone either catch my logical failure or point me to some working code?

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  • force delete row on django app after migration

    - by unsorted
    After a migration with south, I ended up deleting a column. Now the current data in one of my tables is screwed up and I want to delete it, but attempts to delete just result in an error: >>> d = Degree.objects.all() >>> d.delete() Traceback (most recent call last): File "<console>", line 1, in <module> File "C:\Python26\lib\site-packages\django\db\models\query.py", line 440, in d elete for i, obj in izip(xrange(CHUNK_SIZE), del_itr): File "C:\Python26\lib\site-packages\django\db\models\query.py", line 106, in _ result_iter self._fill_cache() File "C:\Python26\lib\site-packages\django\db\models\query.py", line 760, in _ fill_cache self._result_cache.append(self._iter.next()) File "C:\Python26\lib\site-packages\django\db\models\query.py", line 269, in i terator for row in compiler.results_iter(): File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py", line 67 2, in results_iter for rows in self.execute_sql(MULTI): File "C:\Python26\lib\site-packages\django\db\models\sql\compiler.py", line 72 7, in execute_sql cursor.execute(sql, params) File "C:\Python26\lib\site-packages\django\db\backends\util.py", line 15, in e xecute return self.cursor.execute(sql, params) File "C:\Python26\lib\site-packages\django\db\backends\sqlite3\base.py", line 200, in execute return Database.Cursor.execute(self, query, params) DatabaseError: no such column: students_degree.abbrev >>> Is there a simple way to just force a delete? Do I drop the table and then rerun manage.py schemamigration to recreate the table in south?

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  • Delete array of size 1

    - by Arne
    This is possibly a candidate for a one-line answer. I would like know it anyway.. I am writing a simple circular buffer and for some reasons that are not important for the question I need to implement it using an array of doubles. In fact I have not investiated other ways to do it, but since an array is required anyway I have not spent much time on looking for alternatives. template<typename T> class CircularBuffer { public: CircularBuffer(unsigned int size); ~CircularBuffer(); void Resize(unsigned int new_size); ... private: T* buffer; unsigned int buffer_size; }; Since I need to have the buffer dynamically sized the buffer_size is neither const nor a template parameter. Now the question: During construction and in function Resize(int) I only require the size to be at least one, although a buffer of size one is effectively no longer a buffer. Of course using a simple double instead would be more appropriate but anyway. Now when deleting the internal buffer in the destructor - or in function resize for that matter - I need to delete the allocated memory. Question is, how? First candidate is of course delete[] buffer; but then again, if I have allocated a buffer of size one, that is if the pointer was aquired with buffer = new T[0], is it still appropriate to call delete[] on the pointer or do I need to call delete buffer; (without brackets) ? Thanks, Arne

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  • MVC ASP.NET, ObjectContext and Ajax. Weird Behaviour

    - by fabianadipolo
    Hi, i've been creating a web application in mvc asp.net. I have three different project/solutions. One solution contains the model in EF (DAL) and all the methods to add, update, delete and query the objects in the model, the objectcontext is managed here in a per request basis. Other solution contains a content management system in wich authorized users insert, delete, update and access objects through the DAL mentioned before. And the last solution contains the web page that is accessed by all users and where the only operations executed are selects, no update, inserts or deletes here. All the selects are executed against the DAL mentioned before (the first solution). The problem here is that i'm not sure whether an HttpContext lifespan ObjectContext is the best solution. I have a lot of ajax calls in my web app and i'm not sure if an httpcontext could interfere with the performance of the application. I've been noticed that in some cases, specially when someone is working in the content manager inserting, updating or deleting, when you try to click on any link of the user web application (the web app that is accessed by any user - the third one that i mentioned before) the web page freezes and it remains stucked transferring data. In order to stop that behaviour you have to stop and refresh or click several times on the link. Excuse me for my bad english. I hope you could understand and could help me to solve this issue. Thanx in advance.

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  • Asp.net Webdeployment Project override applicationSettings

    - by citronas
    I got a web deyploment project for a web application project in vs 2008. While building the web deployment project, I want to replace properties in the web.config. My settings are autogenrated by the deisgner. <applicationSettings> <NAMESPACE.Properties.Settings> <setting name="Testenvironment" serializeAs="String"> <value>True</value> </setting> </NAMESPACE.Properties.Settings> </applicationSettings> In the config file which contains the settings for the specific server looks like the following: <?xml version="1.0"?> <applicationSettings> <NAMESPACE.Properties.Settings> <setting name="Testenvironment" serializeAs="String"> <value>False</value> </setting> </NAMESPACE.Properties.Settings> </applicationSettings> Sadly, this does not work. I get an error "The format of a configSource file must be an element containing the name of the section" that highlights the second line (2nd example code). How must the Tag be named in order to make evertything work? Edit: Deleting the "applicationSetting"-Tags does not work either.

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  • Debugging SIGABRT within NSManagedObjectContext -save:

    - by westsider
    From inside NSManagedObjectContext -save: I am getting this message: Assertion failed: (_Unwind_SjLj_Resume() can't return), function _Unwind_SjLj_Resume, file /SourceCache/libunwind/libunwind-24.1/src/Unwind-sjlj.c, line 326. Program received signal: “SIGABRT”. warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found). This happens when I delete an Experiment object with to-many with Run which has to-many with Sample which has to-one with Data. Experiment also has to-many with Page which has to-many with Display which has to-many to Run. I mention this to point out the cyclical nature of the graph. Here is a simplified graph of model: I had been using Delete Rules but have now switched to "No Action" delete rules in combination with -prepareForDeletion methods for all of these classes. This change made no difference. In both cases, the error message is the same. Interestingly, when I relaunch the app, all the objects that were marked for deletion have been deleted. Also, if an Experiment has no Run objects, then deletion works without incidence. For that matter, deleting a single Run from an Experiment also works. I am hoping that someone has seen something like this and can offer advice on what would cause this. Or, if someone has advice on how to get libXcodeDebuggerSupport.dylib for iOS 4.2.1, that might also be helpful. Update: I followed advice found here and was able to get Xcode to find libXcodeDebuggerSupport.dylib for iOS 4.2.1. But this did not help at all in diagnosing problem - which persists.

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  • JTable Delete All Rows Exception

    - by Dimitri
    Hi, I'm trying to delete all entrys from my abstractTableModel. As long as I don't delete the last remaining row, everything works fine, but as soon as I delete this one, I get an ArrayOutOfBoundsException. I'm using a DefaultRowSorter and this seems to be the Exception. Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0 at java.util.Vector.get(Vector.java:694) at graphics.tableModel.MyTableModel.getValueAt(MyTableModel.java:78) at graphics.tableModel.MyTableModel.getColumnClass(MyTableModel.java:90) at javax.swing.table.TableRowSorter.useToString(TableRowSorter.java:224) at javax.swing.DefaultRowSorter.updateUseToString(DefaultRowSorter.java:607) at javax.swing.DefaultRowSorter.sort(DefaultRowSorter.java:556) at javax.swing.DefaultRowSorter.shouldOptimizeChange(DefaultRowSorter.java:1008) at javax.swing.DefaultRowSorter.rowsDeleted(DefaultRowSorter.java:866) at javax.swing.JTable.notifySorter(JTable.java:4262) at javax.swing.JTable.sortedTableChanged(JTable.java:4106) at javax.swing.JTable.tableChanged(JTable.java:4383) at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:280) my Code to delete all Rows: public void deleteAll() { int size = data.size()-1; data.clear(); this.fireTableRowsDeleted(0, size); } Same thing happens with simply deleting the last existing row. public void deleteRow(int row) { data.remove(row); } the way i'm calling deleteRow: for (int i = rows.length - 1; i >=0; i--) { tm.deleteRow(rows[i]); } tm.fireTableDataChanged(); thanks for your help

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  • why does text from socket server erase previously written text?

    - by mix
    This is strange enough I'm not sure how to search for an answer. I have a program in Python that communicates via TCP/IP sockets to a telnet-based server. If I telnet in manually and type commands like this: SET MDI G0 X0 Y0 the server will spit back a line like this: SET MDI ACK Pretty standard stuff. Here's the weird part. If, in my code, I precede my printing of each of these lines with some text, the returned line erases what I'm trying to print before it. So for example, if I write the code so it should look like this: SENT: SET MDI G0 X0 Y0 READ: SET MDI ACK What I get instead is: SENT: SET MDI G0 X0 Y0 SET MDI ACK Now, if I make the "READ: " text a bit longer, I can get a better idea of what's happening. Let's say I change READ: to 12345678901234567890, so that it should read as: 12345678901234567890: SET MDI ACK What I get instead is: SET MDI ACK234567890: So it seems like whatever text I'm getting back from the server is somehow deleting what I'm trying to precede it with. I tried saving all of my saved lines in a list, and then printing them out at the end, but it does exactly the same thing. Any ideas on what's going on, or even on how to debug this? Is there a way to get Python to show me any hidden chars in a string, for example? thx!

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