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• How do you handle the deletion of your model working with ViewModels and keeping them in sync ?

  - by Lisa

  Hello, these could be my entity relations: 1 Pupil has 1 Chair 1 Pupil has N Documents 1 Pupil has N Marks 1 Pupil has N IncidentReports etc... So with that sample I get 4 IEnumerable from my database put each into an ObservableCollection. Now I have 4 different Views each bound to one of those 4 collections. Lets assume I delete a single PupilViewModel in the AdministrationController which is the only View where I can delete a PupilViewModel. Now I have to inform 3 other Controller and their ObservableCollections about the one deleted PupilViewModel to keep the whole application synchronized... thats stupid somehow. Do you have any good advice on that scenario? AND it gets even worse. If I delete a schoolclass I have to sync the pupils everywhere AND the documents or incidentreports or marks... gush... o_O

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• django models objects filter

  - by ha22109

  Hello All, I have a model 'Test' ,in which i have 2 foreignkey models.py class Test(models.Model): id =models.Autofield(primary_key=True) name=models.ForeignKey(model2) login=models.ForeignKey(model1) status=models.CharField(max_length=200) class model1(models.Model): id=models.CharField(primary_key=True) . . is_active=models.IntergerField() class model2(model.Model): id=models.ForeignKey(model1) . . status=model.CharField(max_length=200) When i add object in model 'Test' , if i select certain login then only the objects related to that objects(model2) should be shown in field 'name'.How can i achieve this.THis will be runtime as if i change the login field value the objects in name should also change.

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• Doing permutation of different arrays in perl

  - by nubie2

  Hello! I want to do permutation in perl. For example I have three arrays. ["big", "tiny", "small"] and then I have ["red", "yellow", "green"] and also ["apple", "pear", "banana"]. How do I get: ["big", "red", "apple"] ["big", "red", "pear"] ..etc.. ["small", "green", "banana"] I understand this is called permutation. But I am not sure how to do it. Also I don't know how many arrays I can have. There may be three or four, so I don't want to do nested loop.

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• Spark compiled views locating

  - by Gopher

  Hello I have a problem with Spark. I have compiled assembly with views, located in bin subfolder of website, that i created like below engine.BatchCompilation(targetFolder, Global.AllKnownDescriptors()); On start of my app, a try to load compiled views: svf.Engine.LoadBatchCompilation(Assembly.LoadFrom(Path.Combine(basePath, "SharedViews.dll"))); When debugging, i can see that this was successfull. But ViewEngine doesn't find that views. It even doesn'n look for them in CompiledViewHolder where they are located. May that problem be caused ny wrong IViewFolder? Or i should do something more to use compiled views? Thanks

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• Programmatic authentication in JEE 6

  - by Kevin

  Hello, is it possible to authenticate programmatically a user in J2ee 6? Let me explain with some more details: I've got an existing Java SE project with Servlets and hibernate; where I manage manually all the authentication and access control: class Authenticator { int Id string username } Authenticator login(string username, string password) ; void doListData(Authenticator auth) { if (isLoggedIn(auth)) listData(); else doListError } void doUpdateData (Authenticator auth) { if (isLoggedAsAdmin(auth)) updateData() ; else doListError(); } void doListError () { listError() ; } And Im integrating J2ee/jpa/servlet 3/... (Glassfish 3) in this project. I've seen anotations like : @RolesAllowed ("viewer") void doListdata (...) { istData() ; } @RolesAllowed("admin") void doUpdateData (...) { updateData() ; } @PermotAll void dolisterror () { listerror() ; } but how can I manually state, in login(), that my user is in the admin and/or viewer role?

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• How to export more than 1MB in XML format using sqlcmd and without an input file?

  - by jon

  Hello, In SQL Server 2008, I want to export the result of a stored procedure to a file using sqlcmd utility. Now the end of my stored procedure is a select statement with a "for xml path.." clause at the end. I read on BOL that if I don't want my output truncated when reaching 1MB file size, I have to use this :XML ON command, but it should be placed on its own line, before calling the stored procedure. Does any of you experts know if it is possible to do that without specifying an input file for sqlcmd? (I'm calling sqlcmd like this: exec master..xp_cmdshell 'sqlcmd -Q"exec storedProcedureName @param1=value1, @param2=value2" -o c:\exportResults.xml -h-1 -E', but "storedProcedureName" and its parameters can change, which would mean 1 input file per passed parameters to sqlcmd) Also, it seems that I can't use bcp instead of sqlcmd because my stored procedure is creating a temporary table and performing DML statements on it? Thanks a lot

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• Desktop.getDesktop().browse(uri); will open web page on server or client side?

  - by Milan

  Hello everybody, I have a JSF application and when user click on button I want to open a web page. Desktop.getDesktop().browse(uri); probably opens a web page on server side, how to do it on client side? when i try Desktop.getDesktop().browse(uri); it works, but maybe its because I open the JSF application on localhost so I dont know if the opened uri is on server side or client side. In the specification for getDesktop() its written: getDesktop() Returns the Desktop instance of the current browser context. Thanks!

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• CSS for https urls

  - by Vincent

  Hello, looking for some help with images referenced within the stylesheet. I have no problems with these from non secure locations within the site but only from https. The stylesheet loads fine and displays everything correctly except for the images. example: body { margin: 0; padding: 0; background: url(/img/background_tile.gif) top left repeat-x; text-align: center; background-color: #fff; } All my css files and other image paths inside the code use relative urls to images. How can I make sure they all work fine without hard coding my image paths with https or http? I want the code to work fine with http and https. Thanks

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• RichFaces rich:panel header not appearing

  - by Mark Lewis

  Hello I specified this <rich:panel> <f:facet name="header"> Panel #1. Changing Style Synchronously </f:facet> Each component in the RichFaces has a pre-defined set of classes you can manipulate with. If defined, those classes overwrite the ones come from the skin. </rich:panel> from the RichFaces demo, in my JSF page and no header appears, although I've nothing in my css which would interfere. What might be the reason for this? Thanks

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• smart reversing of compressed javascript with obscured variable & function names ?

  - by Jerome WAGNER

  Hello, I want to know if there exists a tool to help in reversing a compressed javascript that has obscure variable names. I am not looking for a pretty-printing beautifier, but for a tool that actually know a to change & propagate variable name choices. Let me be more specific : - some of the functions belong to the 'public' API and i want to impose readable argument names in their prototypes - there are intermediary variables for document, window and other browser idioms I would like to give this knowledge to the tool and then let it create another javascript where the knowledge would have been correctly propagated. thanks Jerome Wagner

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• JQUERY Prepending an LI to an UL with Animation

  - by nobosh

  Hello, I have a UL and I'm working to dynamically add a new LI to the top of the UL with some animation. I have the following so far which works ok: $("#container").prepend('<li id="newhere"><input type="checkbox" /><span class="listTitle">Im new here</span><ul></ul></li>').hide().slideDown("slow"); #container is the UL The problem with the above is that is hides the entire UL and then slides the entire UL down and I just want the NEW LI that was prepended to animate. Ideas? thxs

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• Unable to read .rtf file in VS.NET 2008 Setup

  - by constant learner

  Hello All I have created a simple windows application in .NET 2008. Im packaging the same into a setup file using .NET Setup and Deployment. Also i am customizing it to include a License Agreement UI. And i am pointing the License Agreement window to read the license.rtf file which is being included in the Application folder. After successful build, if i run the setup file i can see the License Agreement window but i cannot see the content of my file. Any ideas what is the issue behind this ? Regards CL

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• How to add link to flash banner

  - by sasa

  Hello, I am primarily a developer and dont know to use Adobe Flash CS4. Is there a simple way to add link to flash banner. I have .flv file with some items in Library and two layers. Please, give me step by step instructions. Thanks. Edit: I find simple solution, by steps: Go to File - Publish settings and set ActionScript version to ActionScript 2.0 Insert new layer Create a square with Rectangle tool, that is larger than banner Right click on square and chose Convert to symbol... In popup windows chose Type: Button Double click on new button from Library panel and move select from Up to Hit and than go back to main scene Right click on new blue square and chose Actions and paste this code in soruce editor: on (release) { getURL("http://www.example.com/", "_blank"); } Close source editor and export file as movie (File-Export-Export Movie).

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• How can I run Octave under Emacs on Windows (Vista)?

  - by Arlie Capps

  Hello, I installed Emacs 23.1.1 and Octave 3.2.3 on my computer running Vista. To make Emacs find Octave, and to make Octave's prompt what Emacs expects, I added the following to the end of my .emacs file: (setq inferior-octave-program "C:/Octave/3.2.3_gcc-4.4.0/bin/octave-3.2.3.exe") (setq inferior-octave-startup-args (list "--eval" "PS1('octave:\# ');" "--persist")) When I do M-x run-octave, I get the "wait" cursor. I can see (using procexp) that Octave starts up as a child process to Emacs, but Emacs and Octave do not talk. Any insight would be much appreciated.

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• Add a DoubleClickHandler to a FixedWidthGrid

  - by MArio

  Hello so I got a FixedWidthGrid table which is made from a pagingtable FixedWidthGrid dataTable = x.getDataTable(); I could add alot of handlers to the dataTables rows like selected or sort policies. but I cant add a double click handler ... anyway idea's ?! thank you I do have a class which I made to try to add a double click hander but it didn't work. class: public class DoubleClickTable extends FixedWidthGrid implements HasDoubleClickHandlers { public DoubleClickTable() { super(); } public HandlerRegistration addDoubleClickHandler(DoubleClickHandler handler) { return addDomHandler(handler, DoubleClickEvent.getType()); } } Thank you so much for your help.

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• Master / Detail datagridview with relation from type string in C#

  - by Daniel

  Hello, I want to show a master / detail relationship using two datagridviews and DataRelation in C#. The relation between the master and the detail table is an ID from type string (and there is no chance to change the ID to type integer). It seems like the DataGridView is not able to update the detail view when changing the row in the master table. Does anybody know if it is possible to achieve a master / detail view using a string ID and if yes, how? Or do I have to use an external DataGrid from another company? Thanks for any help Daniel

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• Query Not Working

  - by John

  Hello, The simple query below is not working. Any idea why? When I echo the three variables, the correct values are returned, so I know I have variables. Thanks in advance, John $comment = $_POST['comment']; $uid = $_POST['uid']; $subid = $_POST['submissionid']; echo $comment; echo $uid; echo $subid; mysql_connect("mysqlv12", "username", "password") or die(mysql_error()); mysql_select_db("database") or die(mysql_error()); $query = sprintf("INSERT INTO comment VALUES (NULL, '%s', '%s', '%s', NULL, NULL)", $uid, $subid, $comment); mysql_query($query);

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• Nested ComboBox doesn't update source by selection.

  - by Shimmy

  Hello. I am using a ComboBox bound under a DataContext: <tk:DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ComboBox ItemsSource="{Binding Source={StaticResource CategoriesCollection}" DisplayMemberPath="Title" SelectedItem="{Binding Category}" /> </DataTemplate> </tk:DataGridTemplateColumn.CellEditingTemplate> When the row is initiated the value of Category is null. Once I select the first value in the ComboBox it sets it up. But when I select another value, it doesn't get changed.

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• Scala type conversion error, need help!

  - by Mansoor Ashraf

  Hello I am getting a weird error when trying to use a Java map in Scala. This is the snippet of code val value:Double = map.get(name) if (value eq null) map.put(name, time) else map.put(name, value + time) the map is defined as val map=new ConcurrentHashMap[String,Double] and this is the error I am getting error: type mismatch; found : Double required: ?{val eq: ?} Note that implicit conversions are not applicable because they are ambiguous: both method double2Double in object Predef of type (Double)java.lang.Double and method doubleWrapper in object Predef of type (Double)scala.runtime.RichDouble are possible conversion functions from Double to ?{val eq: ?} if (value eq null) map.put(name, time) I am new to Scala so I am having a hard time parsing the stacktrace. Any help would be appreciated

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• URLCache - iPhone SDK

  - by Kevin

  Hello everyone.. I need some help in using the NSURLCache to download a simple file. It would need to be saved in the Documents folder of the app. I have seen the URLCache example that apple presented, but I didn't find it useful since it was an image that was being shown. In addition there was some complex code on the modification date. I actually need something when the application opens it will begin the download process. Can someone guide me through just the download process of any file? Thanks Kevin

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• CPP extension and multiline literals in Haskell

  - by jetxee

  Is it possible to use CPP extension on Haskell code which contains multiline string literals? Are there other conditional compilation techniques for Haskell? For example, let's take this code: -- If the next line is uncommented, the program does not compile. -- {-# LANGUAGE CPP #-} msg = "Hello\ \ Wor\ \ld!" main = putStrLn msg If I uncomment {-# LANGUAGE CPP #-}, then GHC refutes this code with a lexical error: [1 of 1] Compiling Main ( cpp-multiline.hs, cpp-multiline.o ) cpp-multiline.hs:4:17: lexical error in string/character literal at character 'o' Using GHC 6.12.1, cpphs is available. I confirm that using cpphs.compat wrapper and -pgmP cpphs.compat option helps, but I'd like to have a solution which does not depend on custom shell scripts. -pgmP cpphs does not work. P.S. I need to use different code for GHC < 6.12 and GHC = 6.12, is it possible without preprocessor?

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• facing problems while updating rows in hbase

  - by sammy

  Hello i've just started exploring hbase i've run samples : SampleUploader,PerformanceEvaluation and rowcount as given in hadoop wiki: http://wiki.apache.org/hadoop/Hbase/MapReduce The problem im facing is : table1 is my table with the column family column create 'table1','column' put 'table1','row1','column:address','SanFrancisco' hbase(main):020:0 scan 'table1' ROW COLUMN+CELL row1 column=column:address, timestamp=1276351974560, value=SanFrancisco put 'table1','row1','column:name','Hannah' hbase(main):020:0 scan 'table1' ROW COLUMN+CELL row1 column=column:address,timestamp=1276351974560,value=SanFrancisco row1 column=column:name, timestamp=1276351899573, value=Hannah i want both the columns to appear in the same row as a different version similary, if i change the name column to sarah, it shows the updated row.... but i want both the old row and the changed row to appear as 2 different versions so that i could make analysis on the data........ whatis the mistake im making???? thank u a lot sammy

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• Convert .png image to .gif image

  - by Brigadier Jigar

  Hello friends, In my project, I have so many .png images. They are working properly in Firefox but when I run my project on Internet Explorer, i get white background in that images. I have used some Image converters but they are also not giving the proper result. After converting, the resolution gets changed. So can any one suggest me some good Converter that will not change the resolution of image and will also convert the .png images to .gif images? Also I dont know in which tag i have to ask this question so i am adding it in C#. Thanks. Regards, Jigar

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• iPhone Web Application + zoom in zoom out issue

  - by pratik

  Hello, I am developing a web application for iPhone safari browser. There is one strange scenario: A web page is loaded. User can zoom out that web page to see the contents in zoomed out manner. There is one button in the web page. Click of this button will hide one of the 'div' in same page and another 'div' of that same page will be visible. Problem, is that suppose the user has zoomed out the web page to see the contacts in zoomed out manner. Now, user clicks the button (the page is zoomed out only), the next 'div' which is get visible is also disaplayed in zoomed out manner. What is want to do is that even if user has zoomed out the page and he clicks on the button, the next 'div' which get visible should have the display as zoomed in only.

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• VBA - Create ADODB.Recordset from the contents of a spreadsheet

  - by robault

  Hello, I am working on an Excel application that queries a SQL database. The queries can take a long time to run (20-40 min). If I've miss-coded something it can take a long time to error or reach a break point. I can save the results to a sheet fine, it's when I am working with the record sets that things can blow up. Is there a way to load the data into a ADODB.Recordset when I'm debugging to skip querying the database (after the first time)? Would I use something like this? http://stackoverflow.com/questions/2086234/query-excel-worksheet-in-ms-access-vba-using-adodb-recordset

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