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• How to make QCombobox painting item delegate for it's current Item? (Qt 4)

  - by r4nj33t

  QCombobox set Item delegate not painting for current Item.. I am trying to create a combo box showing different line types (Solid, Dotted, Dash etc). Currently i am setting item delegate for its content so as to draw/paint line type instead of displaying names. All line types are drawing currectly but as soon as i am selecting any line type from the combobox, the current index of combo box is displaying just the line name and not painting it. How can i make it paint the selected line type on the current combo box index?

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• Where do I subclass SC.Record?

  - by Jake

  I'm using SproutCore and going through the Todos tutorial on http://wiki.sproutcore.com/Todos+06-Building+with+Rails. SproutCore and Rails use different names for the primary key on a model (Sproutcore = 'guid', Rails = 'id'). The tutorial gives directions to Adjust Rails JSON output, but in my app that I'm planning on building, I cannot do this because sproutcore is only one of a couple interfaces used to interact with the Rails app. As an alternate option, the tutorial gives the following directions: Option 2: Set primaryKey in your Sproutcore model class You can subclass SC.Record and set the primaryKey of your sublcass to "id". Your Todo- Object then needs to extend from e.g. App.Rails.Record. App.Rails.Record = SC.Record.extend({ primaryKey : "id" // Extend your records from App.Rails.Record instead of SC.Record. }); Where should I subclass SC.Record (i.e. in what file) such that it is properly read and included?

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• Decode json string returned from Flickr API using PHP, curl

  - by Globalz

  Im trying to decode a json string returned from flickr within my PHP code. Im using CURL but it keeps returning a string even when I wrap json_decode() around the json sring variable. Any ideas? $api_key = '####'; $photoset_id = '###'; $query = 'http://api.flickr.com/services/rest/?&method=flickr.photosets.getPhotos&api_key='.$api_key.'&photoset_id='.$photoset_id.'&extras=url_o,url_t&format=json&jsoncallback=1'; $ch = curl_init(); // open curl session // set curl options curl_setopt($ch, CURLOPT_URL, $query); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $data = curl_exec($ch); // execute curl session curl_close($ch); // close curl session var_dump(json_decode($data));

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• How to access "overridden" inner class in Scala?

  - by doom2.wad

  I have two traits, one extending the other, each with an inner class, one extending the other, with the same names: trait A { class X { def x() = doSomething() } } trait B extends A { class X extends super.X { override def x() = doSomethingElse() } } class C extends B { val x = new X() // here B.X is instantiated val y = new A.X() // does not compile val z = new A.this.X() // does not compile } How do I access A.X class in the C class's body? Renaming B.X not to hide A.X is not a preferred way. To make things a bit complicated, in the situation I have encountered this problem the traits have type parameters (not shown in this example).

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• Parameters with default value not in PsBoundParameters?

  - by stej

  General code Consider this code: PS> function Test { param($p='default value') $PsBoundParameters } PS> Test 'some value' Key Value --- ----- p some value PS> Test # nothing I would expect that $PsBoundParameters would contain record for $p variable on both cases. Is that correct behaviour? Question I'd like to use splatting for a lot of functions that would work like this: function SomeFuncWithManyRequiredParams { param( [Parameter(Mandatory=$true)][string]$p1, [Parameter(Mandatory=$true)][string]$p2, [Parameter(Mandatory=$true)][string]$p3, ...other parameters ) ... } function SimplifiedFuncWithDefaultValues { param( [Parameter(Mandatory=$false)][string]$p1='default for p1', [Parameter(Mandatory=$false)][string]$p2='default for p2', [Parameter(Mandatory=$false)][string]$p3='default for p3', ...other parameters ) SomeFuncWithManyRequiredParams @PsBoundParameters } I have more functions like this and I don't want to call SomeFuncWithManyRequiredParams with all the params enumerated: SomeFuncWithManyRequiredParams -p1 $p1 -p2 $p2 -p3 $p3 ... Is it possible?

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• will paginate, nested routes, ruby, rails

  - by Sam

  I'm trying to get will paginate to link to my nested route instead of the regular posts variable. I know I'm supposed to pass some params to paginate but I don't know how to pass them. Basically there is an array stored in @posts and the other param paginate has access to is category_id. The nested route is /category/1/posts but hitting next and previous on will paginate returns a url like this posts?page=1&category_id=7. <%= will_paginate @most_recent_posts "What do I do here?" %> This is the result of Yannis's answer: In your controller you can do: @posts = @category.posts.paginate And in your view: <%= will_paginate(@post) %> Doing this comes up with the following URL posts?page=2&post_category_id=athlete_management routes.rb #there are more routes but these are the relevant ones map.resources :posts map.resources :post_categories, :has_many => :posts solution map.resources :post_categories do |post_category| post_category.resources :posts end map.resources :posts Had to declare the resource after the block Thanks stephen!

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• Java Logger with Servlets

  - by Sunny

  Hi Guys, I am using a wrapper class A which initializes the java.util.logger static class A { public static Logger logger; public static void init(){ logger = Logger.getLogger("test"); } Now, everywhere in my program I call A.init() and then logger.log("Message+uniqid"). But recently I moved to HTTP servlets and I am having problems. Basically, If a app is already running and the logger is logging... and someone else runs the app again, the logger from the previous instance stops and starts logging for the second one. Can anyone have a solution to how I should go about fixing this static variable issue? I can pass the logger into all constructor classes but thats really tedious. Any better solution would be appreciated..

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• How can I loop through every letter in MS Word using VBA?

  - by Behrooz Karjooravary

  I have about 100 ms word documents which include transliteration of foreign names. The author of these docs used a special font called e2 which has about a dozen special transliteration characters (all of which are available in ms sans serif font). I would like to loop through every letter of the document and whenever the font = e2 i would like to loop through the dozen letters (it's easy to guess what they are) and replace them with a Microsoft Sans Serif equivalent. But I can't figure out how you can loop though letters. Is that doable like looping through cells in an excel spread sheet?

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• Interpolation of time series data in R

  - by Pierreten

  I'm not sure what i'm missing here, but i'm basically trying to compute interpolated values for a time series; when I directly plot the series, constraining the interpolation points with "interpolation.date.vector", the plot is correct: plot(date.vector,fact.vector,ylab='Quantity') lines(spline(date.vector,fact.vector,xout=interpolation.date.vector)) When I compute the interpolation, store it in an intermediate variable, and then plot the results; I get a radically incorrect result: intepolated.values <- spline(date.vector,fact.vector,xout=interpolation.date.vector) plot(intepolated.values$x,intepolated.values$y) lines(testinterp$x,testinterp$y) Doesn't the lines() function have to execute the spline() function to retrieve the interpolated points in the same way i'm doing it?

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• Quick question about PayPal IPN Security

  - by Alix Axel

  PayPal IPN sends a POST request with a variable number of fields to the notify URL, in order to confirm that the POST request is legit we need to resubmit the same request along with a additional cmd=_notify-validate field to PayPal, which then replies SUCCESS or FAILURE. My question is, why do we need to resend the request to PayPal? Wouldn't something like this work? if (preg_match('~^(?:.+[.])?paypal[.]com$~i', gethostbyaddr($_SERVER['REQUEST_ADDR'])) > 0) { // request came from PayPal, it's legit. } Iff we can trust the server to correctly resolve IPs, I assume we can trust PayPal POST requests, no?

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• Multiple Default Routes in ASP.NET MVC to different Default Actions

  - by Alex

  I have multiple controllers with different actions (no "Index" actions). The actions I consider "default" actions, are named differently. I want to create default routes for their names and have the first available action (from my list of default actions) executed if only the controller name is provided in the route. So, for example, I have the following actions which I want to consider default and want checked for their existence in a controller in this order: List() Draw() ViewSingle() The routing should somehow search for /{controller} and then take the first available action from the list above as default action, e.g.: /ControllerA -> ControllerA.List() /ControllerB -> ControllerB.Draw() /ControllerC -> ControllerC.ViewSingle() /ControllerD -> ControllerD.Draw() /ControllerE -> ControllerE.List() Is this possible? I tried creating additional Default actions like this but couldn't get it to work: routes.MapRoute("Default1", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "List" } routes.MapRoute("Default2", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "Draw" } routes.MapRoute("Default3", "{controller}/{action}", new { controller = UrlParameter.Optional, action = "ViewSingle" } Help?

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• How to get elements from a page using Simple HTML DOM Parser

  - by sm56d

  Hi I am trying to parse a HTML page using the Simple HTML DOM Parser. This HTML page doesn't make use of IDs which makes it harder to refer to elements. On this page I am trying to get the Album name, Song title, download link and the album image. I have done this but I can't even get the Album names! $html = file_get_html('http://music.banadir24.com/singer/aasha_abdoo/247.html'); $article = $html->find('table td[class=title]', 0); foreach($article as $link){ echo $link; } This outputs: 1tdArrayArrayArray Artist Array I need to get this sort of output: Image Path Duniya Jamiila [URL] Macaan Badnoo [URL] Donimaayee [URL] ... Thanks all for any help Please note: This is legal as the songs are not bound by copyright and they are available to download freely, its just I need to download a lot of them and I can't sit there clicking a button all day. Having said that, its taken me an hour to get this far.

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• Sorting an array of Objective-c objects

  - by davbryn

  So I have a custom class Foo that has a number of members: @interface Foo : NSObject { NSString *title; BOOL taken; NSDate *dateCreated; } And in another class I have an NSMutableArray containing a list of these objects. I would very much like to sort this array based on the dateCreated property; I understand I could write my own sorter for this (iterate the array and rearrange based on the date) but I was wondering if there was a proper Objective-C way of achieving this? Some sort of sorting mechanism where I can provide the member variable to sort by would be great. In C++ I used to overload the < = operators and this allowed me to sort by object, but I have a funny feeling Objective-C might offer a nicer alternative? Many thanks

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• Problem passing ELMAH log id to Custom Error page in ASP.NET

  - by Ronnie Overby

  I am using ELMAH to log unhandled exceptions in an ASP.NET Webforms application. Logging is working fine. I want to pass the ELMAH error log id to a custom error page that will give the user the ability to email an administrator about the error. I have followed the advice from this answer. Here is my global.asax code: void ErrorLog_Logged(object sender, ErrorLoggedEventArgs args) { Session[StateKeys.ElmahLogId] = args.Entry.Id; // this doesn't work either: // HttpContext.Current.Items[StateKeys.ElmahLogId] = args.Entry.Id; } But, on the Custom error page, the session variable reference and HttpContext.Current.Items are giving me a NullReference exception. How can I pass the ID to my custom error page?

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• jquery loop to create elements

  - by Andy Simpson

  Dear all, I have had no luck with this task so far so grateful for any help. I have an html form, in which there is a small select menu (1-10) ie <select> <option value = '1'>1</option> <option value = '2'>2</option> ... <option value = '10'>10</option> </select> depending on what value is selected i would like jquery to create (or remove) that number of input text boxes (with different names and id's). eg if 2 was selected these inputs would be created: <input type = 'text' name = 'name1' id = 'id1' /> <input type = 'text' name = 'name2' id = 'id2' /> i look forward to your no doubt simple and elegant solutions! andy

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• Using Active Objects and BLOBs

  - by Andrew L.

  I am in a group of people who are creating a Defect Tracking program as a project. We have been using Active Objects and have run into some issues. Currently maximum file size for the blob is approx. 2Mb but we want to be able to increase it up to 2Gb. We currently have been looking at many sites and have not been able to find out how to increase the size. We are currently storing the blob as an array of bytes. Our current error says, Packet for Query is too large? We don't know how to set the variable, and we don't know how to set it using AO. We are programming this in Java, too. We are wondering if anyone has a solution to this problem. Thanks for the Help.

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• Is it possible to load ListPreference items from an adapter?

  - by Brad Hein

  I'm setting out to create a settings activity for my app. I've defined a PreferenceActivity with a nice layout including a ListPreference object for the user to select a bluetooth device. I'm having trouble dynamically populating the list. I would like to populate ListPreference with values from an array adapter (which I'll create and populate with relevant bluetooth device names). If this were a spinner View, I could just call setAdapter(). However with the ListPreference object I can't figure out how to attach an adapter (findviewByID won't cast from View To ListPreference, so I can't even get a handle to the object). I would like to attach an adapter and then populate the adapter with values, which in turn would populate the ListPreference with values.

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• Problem with WiX Votive 3.0 preprocessor

  - by Leith Bade

  I have just started using WiX for the first time. I added a WiX Votive project to my existing C project. To automatically select the correct source folder for the binaries add used the following: <Directory Id="INSTALLLOCATION" Name="Trapeze Capture For Objective" FileSource="$(var.CaptureForObjective.TargetDir)"> That results in the following error: 1C:\code\CaptureForObjective\Installer\Product.wxs(10,0): error CNDL0150: Undefined preprocessor variable '$(var.CaptureForObjective.TargetDir)'. The C project is called CaptureForObjective, and the WiX project is called Installer. What do I need to do to get this to work?

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• Strange behaviour of code inside TransactionScope?

  - by Krishna

  We are facing a very complex issue in our production application. We have a WCF method which creates a complex Entity in the database with all its relation. public void InsertEntity(Entity entity) { using(TransactionScope scope = new TransactionScope()) { EntityDao.Create(entity); } } EntityDao.Create(entity) method is very complex and has huge pieces of logic. During the entire process of creation it creates several child entities and also have several queries to database. During the entire WCF request of entity creation usually Connection is maintained in a ThreadStatic variable and reused by the DAOs. Although some of the queries in DAO described in step 2 uses a new connection and closes it after use. Overall we have seen that the above process behaviour is erratic. Some of the queries in the inner DAO does not even return actual data from the database? The same query when run to the actaul data store gives correct result. What can be possible reason of this behaviour?

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• CLR debugger and 'var'

  - by Ken

  I'm using the CLR debugger (version 8, from "Visual Studio 2005") to debug some C# code. I can step through my code, but for many variables, the debugger won't show me its value. That is, if I type it in the "Immediate" frame or add it to the "Watch" frame, it says "Unable to evaluate the expression.". It seems to do this a lot for var variables, but I'm also seeing it for parameters and properties, too. I have not been able to figure out what the pattern is. Is there a rule for when it can display the value of a variable? Is there something I need to do to my code, or in my build script, to make the debugger able to view variables? Or is there a hidden debugger setting?

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• When Debugging in Xcode what does "out of scope" mean?

  - by Buffernet

  I'm in xcode debugging my iphone application. when i get to a break point and I roll over my object and properties of that object say "out of scope" instead of their respective values. Here's what I do: I have inited a view with nib name (initwithnibname). Then set the property of that view to the object that I want. I have placed the breakpoint in the viewwillappear method. I rollover my reference to the variable that was is my property. All properties in the object say "out of scope" Does anyone know why this is happening?

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• How to select items from XmlList

  - by Cen

  My Flash designer is reading an XML stream I'm sending back to the browser (I'm a C# dev). We have this working fine. He is then selecting into an XMLList where a element has its id a certain value i.e. . This is also working just fine. In this XmlList, are Events, that look a little something like this: event startdate enddate end event I don't know how to use the formatting here - but each of those items is an element. startdate would have a value such as 04/02/2010 and enddate 6/30/2010. Now, from this XmlList I do have of Events, I need to select all Events where a new variable myDate, falls in between the startdate and enddate. I'm not sure how to do this in AS3 - can anyone help me? Thank you very much in advance!

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• libxml2dom and parsing

  - by Ockonal

  Hello, I have the html-content in some python-variable. Is it possible to use DOM for it? As I understand, libxml2dom is the tool for this. And about question. In my html there is div with id = 'some_needed_block'. In python-script: pageData = someHandler.read() pageDOM = libxml2dom.parseString(pageData, html=1) print pageDOM -> <libxml2dom.Document object at 0x2d160d0> block = pageDOM.getElementById('some_needed_block') print block -> <libxml2dom.Node object at 0xf5d1d0> def collect_text(node): s = "" for child_node in node.childNodes: if child_node.nodeType == child_node.TEXT_NODE: s += child_node.nodeValue else: s += collect_text(child_node) return s collect_text(block) -> for child_node in node.childNodes: -> AttributeError: 'NoneType' object has no attribute 'childNodes'

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• How to get a handle/reference to the current controller object inside a rails functional test?

  - by Dave Paroulek

  I must be missing something very simple, but can't find the answer to this. I have a method named foo inside bar_controller. I simply want to call that method from inside a functional test. Here's my controller: class BarsController < ApplicationController def foo # does stuff end end Here's my functional test: class BarsControllerTest << ActionController::TestCase def "test foo" do # run foo foo # assert stuff end end When I run the test I get: NameError: undefined local variable or method `foo' for #<BarsControllerTest:0x102f2eab0> All the documentation on functional tests describe how to simulate a http get request to the bar_controller which then runs the method. But I'd just like to run the method without hitting it with an http get or post request. Is that possible? There must be a reference to the controller object inside the functional test, but I'm still learning ruby and rails so need some help.

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• How to work with session variables in php mvc pattern

  - by Richard

  Hello, I just found out that I loose any reference to the session array if I create a new view and try to set a session variable in the controller. The array just comes out as empty. I actually try to use the session array to store the post vars from a multistep registration form. This was actually working when the php was spachetticode, but now that I dumpt everything in a mvc pattern, it is not functioning anymore. Can anyone explain what is going om here and possibly offer a solution om how to work with the session array? Thanks in adv, Richard

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