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  • cakephp - try/catch an Action

    - by joshs
    I would like to somehow apply a try catch statement to all Actions as a backstop for any uncaught exceptions. I think this would be particularly helpful for Ajax Actions, because the catch statement could send back a default 4xx status code. Prototype's onFailure() function could then do the client-side error handling. How can I do this without wrapping the Action call with a try/catch in the cake dispatcher like this: try { output = $controller->dispatchMethod($params['action'], $params['pass']); } catch {...} Does anybody have a suggestion or another workable strategy for gaining this functionality without touching the dispatcher? How do people feel about putting exception handling in the Displatcher? I imagine when cake drops php 4 support, there will be a built-in mechanism for this.

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  • Can Ruby on Rails handle AJAX Response by Static Javascript code? by using RJS?

    - by Jian Lin
    So it looks like on RoR, when Ajax (using form_remote_tag) returns a success code, Javascript is also returned to handle the visual effects. (this is the RJS mechanism) using Fiddler, I do see the following response: try { Element.update("vote_score", "Score 58"); $("vote_score").visualEffect("highlight"); } catch (e) { alert('RJS error:\n\n' + e.toString()); alert('Element.update(\"vote_score\", \"Score 58\");\n$(\"vote_score\").visualEffect(\"highlight\");'); throw e } Will there be situation where the code is quite big (like 1 or 2k) that RJS can use some sort of static Javascript already loaded to handle the effect? Is there any other ways to use static Javascript already loaded with the page? Must it be just raw Javascript and use the Prototype's Ajax success response to call the static Javascript code, or can it be some Rails mechanism related to RJS?

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  • Classic ASP result set - ultimate confusion!

    - by Paul
    Consider a simple result set from a mysql query. rs("description") and rs("description").Value should be considered as the same thing. However, depending on how you access them, you get different results (!!) Access rs("description") directly and you are returned a "Field" object. Or, more importantly, use it directly in a call, and you are returned a "Field" object. mydescription = rs("description") + " is the description" Assign it to another variable, and the Value of that object is assigned... mydescription = rs("description") the contents of "mydescription" is a string. Why this difference? At one point in the life of ASP they must have both worked exactly the same, so why have they changed, and how can I change it back?

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  • Compiled Queries and "Parameters cannot be sequences"

    - by David B
    I thought that compiled queries would perform the same query translation as DataContext. Yet I'm getting a run-time error when I try to use a query with a .Contains method call. Where have I gone wrong? //private member which holds a compiled query. Func<DataAccess.DataClasses1DataContext, List<int>, List<DataAccess.TestRecord>> compiledFiftyRecordQuery = System.Data.Linq.CompiledQuery.Compile <DataAccess.DataClasses1DataContext, List<int>, List<DataAccess.TestRecord>> ((dc, ids) => dc.TestRecords.Where(tr => ids.Contains(tr.ID)).ToList()); //this method calls the compiled query. public void FiftyRecordCompiledQueryByID() { List<int> IDs = GetRandomInts(50); //System.NotSupportedException //{"Parameters cannot be sequences."} List<DataAccess.TestRecord> results = compiledFiftyRecordQuery (myContext, IDs); }

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  • How to tell if any entities in context are dirty with .Net Entity Framework 4.0

    - by Mike Gates
    I want to be able to tell if there is any unsaved data in an entity framework context. I have figured out how to use the ObjectStateManager to check the states of existing entities, but there are two issues I have with this. I would prefer a single function to call to see if any entities are unsaved instead of looping though all entities in the context. I can't figure out how to detect entities I have added. This suggests to me that I do not fully understand how the entity context works. For example, if I have the ObjectSet myContext.Employees, and I add a new employee to this set (with .AddObject), I do not see the new entity when I look at the ObjectSet and I also don't see the .Count increase. However, when I do a context.SaveChanges(), my new entity is persisted...huh? I have been unable to find an answer to this in my msdn searches, so I was hoping someone here would be able to clue me in. Thanks in advance.

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  • webview showing white bar on right side

    - by Funkyidol
    I am giving the following method call to my webview client embedded in my layout wv.loadData("<html><body bgcolor=\"Black\"></body></html>","text/html", "utf-8"); when i run this on the device, it shows a white vertical bar on the right side. I fixed the white thing by using webview.setBackgroundColor(Color.BLACK); but i want to remove it completely Following is my layout xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <WebView android:id="@+id/wv1" android:layout_height="fill_parent" android:layout_width="fill_parent" /> </LinearLayout> Any suggestions??

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  • Web service reference location?

    - by Damien Dennehy
    I have a Visual Studio 2008 solution that's currently consisting of three projects: A DataFactory project for Business Logic/Data Access. A Web project consisting of the actual user interface, pages, controls, etc. A Web.Core project consisting of utility classes, etc. The application requires consuming a web service. Normally I'd add the service reference to the Web project, but I'm not sure if this is best practice or not. The following options are open to me: Add the reference to the Web project. Add the reference to the Web.Core project, and create a wrapper method that Web will call to consume the web service. Add a new project called Web.Services, and copy step 2. This project is expected to increase in size so I'm open to any suggestions.

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  • How to automatically include generated source files into a C# project in Visual Studio?

    - by Charles Prakash Dasari
    I have a situation where I need to generate a bunch of C# code files in a prebuild step of a project and include the generated files into the current project for compilation. Is there a way to do this cleanly without having to muck with the project file every time the prebuild step is run? My solution should work for both IDE based build and a Team Build based on MSBuild. Since both are MSBuild based, I suspect there won't be much difference; but wanted to call it out. Any help is greatly appreciated, thanks!

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  • How reliable are URIs like /index.php/seo_path

    - by Boldewyn
    I noticed, that sometimes (especially where mod_rewrite is not available) this path scheme is used: http://host/path/index.php/clean_url_here --------------------------^ This seems to work, at least in Apache, where index.php is called, and one can query the /clean_url_here part via $_SERVER['PATH_INFO']. PHP even kind of advertises this feature. Also, e.g., the CodeIgniter framework uses this technique as default for their URLs. The question: How reliable is the technique? Are there situations, where Apache doesn't call index.php but tries to resolve the path? What about lighttpd, nginx, IIS, AOLServer? A ServerFault question? I think it's got more to do with using this feature inside PHP code. Therefore I ask here.

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  • Some basic COM question...

    - by smwikipedia
    I have just finished my first COM server DLL. And it runs smoothly. So I'd like to show my understanding for now and hear your critics. 1- How COM simply works? COM - "The Call Chain" COM Lib methods - Traditional DLL exports - Classes encapsulated in the COM DLL 2- With C++, the benefits like "interface" in OOP can only be taken advantage of at the source level. With COM, these benefits can be used at a binary level. 3- Some illustration about interface &pInterface ------- pInterface ---------- Interface----------------- methods Ixx ** Ixx * (method table) (void **) A Interface is a data structure in memory. It's nothing but a memory area containg a method table. Is my understanding alright? Thanks for your revision.

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  • Automating Visual Studio 2010 from a console app

    - by JoelFan
    I am trying to run the following code (which I got from here). The code just creates a new "Output" pane in Visual Studio and writes a few lines to it. Public Sub WriteToMyNewPane() Dim win As Window = _ DTE.Windows.Item(EnvDTE.Constants.vsWindowKindOutput) Dim ow As OutputWindow = win.Object Dim owPane As OutputWindowPane Dim cnt As Integer = ow.OutputWindowPanes.Count owPane = ow.OutputWindowPanes.Add("My New Output Pane") owPane.Activate() owPane.OutputString("My text1" & vbCrLf) owPane.OutputString("My text2" & vbCrLf) owPane.OutputString("My text3" & vbCrLf) End Sub Instead of running it as a Macro, I want to run it as an independent console application that connects to a currently running instance of Visual Studio 2010. I'm having a hard time figuring out how to set the value of DTE. I think I may need to call GetActiveObject, but I'm not sure how. Any pointers?

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  • What is the most stupid coded solution you have read/improved/witnessed?

    - by Rigo Vides
    And for stupid I mean Illogical, non-effective, complex(the bad way), ugly code style. I will start: We had a requirement there when we needed to hide certain objects given the press of a button. So this framework we were using at the time provided a way to tag objects and retrieve all the objects with a certain tag in a complete iterable collection. So I presented the most logically solution given these conditions to my partner: Me: you know, tag all the objects we needed to hide with the same tag, then call the function to get them all, iterate trough them and make them hidden. Partner: I don't know, that is hardcoding for me... Me: So what do you suggest? 20 mins later... Partner: I don't know... let's put a tag to all the objects to be hidden like this, 1, 2, 3, 4, 5, 6, 7 (and so for each object to be hidden), Then we make a for from 1 to n (where n was the number of objects to hide) and we hide them all there!

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  • Calling methods within same Javwscript class [Prototype]

    - by eldeejay
    I've created a class in Javscript using the prototype Class.Create complete with the initialize function and a few other functions. However, in one of my functions I want to reference another function in the same class, but cannot seem to get the syntax correct. e.g. var sampleClass = Class.create({ initialize: function(){ //do the init work here }, functionA: function(){ //do some more stuff here } functionB: function(){ //Do some stuff functionA() } } I've tried calling functionA() , this.functionA() but nothing works I just get errors. I know how to call the functions externally when the class has been instantiated, but not reference a function from within the class itself. Thanks

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  • Problem on Windows 7 using Image.FromStream to open cmyk+alpha tiff file

    - by Stefan Andersson
    I'm having a problem running the following code om Windows 7 x86 when creating an Image from a lzw encoded cmyk + alpha TIFF file. The FromStream call throws a System.ArgumentException: Parameter is not validRunning When I run the code on Vista or Server 2008 (both x86 and x64 bit) it just works. using System; using System.Drawing; using System.Drawing.Imaging; . . . using (FileStream stream = File.OpenRead(fileName)) { using (Image image = Image.FromStream(stream, false, false)) { // Do something with the image } }

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  • Spring bean's DESTROY-METHOD attribute [does not work for me]

    - by EugeneP
    Can get work the attribute "destroy-method". First, even if I type non-existing method name into "destroy-method" attribute, Spring initialization completes fine (already strange!). Next, when a bean has a "prototype" scope, then I suppose it must be destroyed before the application is closed. That not happens, it is simply never called in my case. Though, after extracting this bean I can call this method explicitly and it does its job. Could you explain why this method is never called in my Spring 2.5 case? p.s. The method exists, it is public and has no arguments.

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  • How to get the last key pressed on Mac ?

    - by Dheeraj
    Hi All, I'm writing a plugin for an application. I cannot derive from NSApplication as it is a third party application. I can get the callback in my plugin when any key is pressed. But I will not know what key is pressed. So is there any call in Cocoa to find the last key pressed when I get the callback? I only have NSView object. Any ideas will help me a lot. Thanks, Dheeraj.

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  • Accessing a dictionary value by custom object value in Python?

    - by Sam
    So I have a square that's made up of a series of points. At every point there is a corresponding value. What I want to do is build a dictionary like this: class Point: def __init__(self, x, y): self._x = x self._y = y square = {} for x in range(0, 5): for y in range(0, 5): point = Point(x,y) square[point] = None However, if I later create a new point object and try to access the value of the dictionary with the key of that point it doesn't work.. square[Point(2,2)] Traceback (most recent call last): File "<pyshell#19>", line 1, in <module> square[Point(2,2)] KeyError: <__main__.Point instance at 0x02E6C378> I'm guessing that this is because python doesn't consider two objects with the same properties to be the same object? Is there any way around this? Thanks

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  • Why does calling IEnumerable<string>.Count() create an additional assembly dependency ?

    - by Gishu
    Assume this chain of dll references Tests.dll >> Automation.dll >> White.Core.dll with the following line of code in Tests.dll, where everything builds result.MissingPaths Now when I change this to result.MissingPaths.Count() I get the following build error for Tests.dll "White.UIItem is not defined in an assembly that is not referenced. You must add a reference to White.Core.dll." And I don't want to do that because it breaks my layering. Here is the type definition for result, which is in Automation.dll public class HasResult { public HasResult(IEnumerable<string> missingPaths ) { MissingPaths = missingPaths; } public IEnumerable<string> MissingPaths { get; set; } public bool AllExist { get { return !MissingPaths.Any(); } } } Down the call chain the input param to this ctor is created via (The TreeNode class is in White.Core.dll) assetPaths.Where(assetPath => !FindTreeNodeUsingCache(treeHandle, assetPath)); Why does this dependency leak when calling Count() on IEnumerable ? I then suspected that lazy evaluation was causing this (for some reason) - so I slotted in an ToArray() in the above line but didn't work. Update 2011 01 07: Curiouser and Curiouser! it won't build until I add a White.Core reference. So I add a reference and build it (in order to find the elusive dependency source). Open it up in Reflector and the only references listed are Automation, mscorlib, System.core and NUnit. So the compiler threw away the White reference as it was not needed. ILDASM also confirms that there is no White AssemblyRef entry. Any ideas on how to get to the bottom of this thing (primarily for 'now I wanna know why' reasons)? What are the chances that this is an VS2010/MSBuild bug? Update 2011 01 07 #2 As per Shimmy's suggestion, tried calling the method explcitly as an extension method Enumerable.Count(result.MissingPaths) and it stops cribbing (not sure why). However I moved some code around after that and now I'm getting the same issue at a different location using IEnumerable - this time reading and filtering lines out of a file on disk (totally unrelated to White). Seems like it's a 'symptom-fix'. var lines = File.ReadLines(aFilePath).ToArray(); once again, if I remove the ToArray() it compiles again - it seems that any method that causes the enumerable to be evaluated (ToArray, Count, ToList, etc.) causes this. Let me try and get a working tiny-app to demo this issue... Update 2011 01 07 #3 Phew! More information.. It turns out the problem is just in one source file - this file is LINQ-phobic. Any call to an Enumerable extension method has to be explicitly called out. The refactorings that I did caused a new method to be moved into this source file, which had some LINQ :) Still no clue as to why this class dislikes LINQ. using System; using System.Collections.Generic; using System.IO; using System.Linq; using G.S.OurAutomation.Constants; using G.S.OurAutomation.Framework; using NUnit.Framework; namespace G.S.AcceptanceTests { public abstract class ConfigureThingBase : OurTestFixture { .... private static IEnumerable<string> GetExpectedThingsFor(string param) { // even this won't compile - although it compiles fine in an adjoining source file in the same assembly //IEnumerable<string> s = new string[0]; //Console.WriteLine(s.Count()); // this is the line that is now causing a build failure // var expectedInfo = File.ReadLines(someCsvFilePath)) // .Where(line => !line.StartsWith("REM", StringComparison.InvariantCultureIgnoreCase)) // .Select(line => line.Replace("%PLACEHOLDER%", param)) // .ToArray(); // Unrolling the LINQ above removes the build error var expectedInfo = Enumerable.ToArray( Enumerable.Select( Enumerable.Where( File.ReadLines(someCsvFilePath)), line => !line.StartsWith("REM", StringComparison.InvariantCultureIgnoreCase)), line => line.Replace("%PLACEHOLDER%", param)));

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  • Drag and Drop to explorer causing invalid FORMATETC (DV_E_FORMATETC) error

    - by JustABill
    I'm trying to use this excellent example to implement dropping virtual files into Windows Explorer. However, I'm stymied by this error. Towards the bottom, inside void System.Runtime.InteropServices.ComTypes.IDataObject.GetData(ref System.Runtime.InteropServices.ComTypes.FORMATETC formatetc, out System.Runtime.InteropServices.ComTypes.STGMEDIUM medium) on the first call to ((System.Runtime.InteropServices.ComTypes.IDataObject)this).GetDataHere(ref formatetc, ref medium); I'm getting back a DV_E_FORMATETC error. As far as I can tell, all the elements of the FORMATETC struct that are being passed in are valid: cfFormat is "Shell IDList Array" (-16141), ptd is 0, dwAspect is DVASPECT_CONTENT, lindex is -1, and tymed is TYMED_HGLOBAL. I'm kind of confused how there'd be a problem anyway, since this was generated by explorer. I know very little about COM interaction, so any help would be greatly appreciated.

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  • GCC, functions, and pointer arguments, warning behaviour

    - by James Morris
    I've recently updated to a testing distribution, which is now using GCC 4.4.3. Now I've set everything up, I've returned to coding and have built my project and I get one of these horrible messages: *** glibc detected *** ./boxyseq: free(): invalid pointer: 0x0000000001d873e8 *** I absolutely know what is wrong here, but was rather confused as to when I saw my C code where I call a function which frees a dynamically allocated data structure - I had passed it an incompatible pointer type - a pointer to a completely different data structure. warning: passing argument 1 of 'data_A_free' from incompatible pointer type note: expected 'struct data_A *' but argument is of type 'struct data_B *' I'm confused because I'm sure this would have been an error before and compilation would never have completed. Is this not just going to make life more difficult for C programmers? Can I change it back to an error without making a whole bunch of other warnings errors too? Or am I loosing the plot and it's always been a warning?

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  • IStatelessSession insert object with many-to-one

    - by Andrew Kalashnikov
    Hello guys. I've got common mapping <class name="NotSyncPrice, Portal.Core" table='Not_sync_price'> <id name="Id" unsaved-value="0"> <column name="id" not-null="true"/> <generator class="native"/> </id> <many-to-one name="City" class="Clients.Core.Domains.City, Clients.Core" column="city_id" cascade="none"></many-to-one> <!--<property name="City"> <column name="city_id"/> </property>--> I want to use IStatelessSession for batch insert. But when i set city object to NotSyncPrice object and call IStatelessSession I've got strange exception: NHibernate.Impl.StatelessSessionImpl.get_Timestamp() When its null or int all is ok. I try use real && proxy city object. But no result. What's wrong:( Please help

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  • alias_attribute and creating and method with the original attribute name causes a loop

    - by Tiago
    Im trying to dynamically create a method chain in one attribute in my model. By now I have this function: def create_filtered_attribute(attribute_name) alias_attribute "#{attribute_name}_without_filter", attribute_name define_method "#{attribute_name}" do filter_words(self.send("#{attribute_name}_without_filter")) end end so I receive a string with the attribute name, alias it for '*_without_filter*' (alias_method or alias_method_chain fails here, because the attribute isnt there when the class is created), and I create a new method with the attribute name, where I filter its contents. But somehow, when I call *"#{attribute_name}_without_filter"* it calls my new method (i think because the alias_attribute some how), and the program goes into a stack loop. Can someone please enlighten me on this.

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  • Adding a custom control to a page, then adding multiple custom children into that one, null user con

    - by Rickjaah
    Hello all, While nerding my way through the day again. I came across a problem concerning adding children to an already add child control. I can add the controls, but when trying to use the controls in the added control, they all return null. This is the method: protected override CreateChildControls(EventArgs e) { UserControl uControl = LoadControl("~/controls/TwoColumn.ascx"); PlaceHolder holder = uControl.Controls.FindControl(phrContentMiddle) as PlaceHolder; holder.Controls.Add(LoadControl("~/controls/ImageShowControl"); } When i try to call any type of button/UserControl inside the ImageShowControl.... All return null. Is this something in the Page LifeCycle? If so, what is the way to go to realize this?

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  • OutOfMemoryError calling XmlSerializer.Deserialize() - not related to XML size!

    - by Mike Atlas
    This is a really crazy bug. The following is throwing an OutOfMemoryException, for XML snippits that are very short (e.g., <ABC def='123'/>) of one type, but not for others of the same size but a different type: (e.g., <ZYX qpr='baz'/>). public static T DeserializeXmlNode<T>(XmlNode node) { try { return (T)new XmlSerializer(typeof(T)) .Deserialize(new XmlNodeReader(node)); } catch (Exception ex) { throw; // just for catching a breakpoint. } } I read in this MSDN article that if I were using XmlSerializer with additional parameters in the constructor, I'd end up generating un-cached serializer assemblies every it got called, causing an Assembly Leak. But I'm not using additional parameters in the constructor. It also happens on the first call, too, so the AppDomain is fresh. Worse yet, it is only thrown in release builds, not debug builds. What gives?

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