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• NHibernate cascade and generated guid ids - why are they not generated for the children on save?

  - by asgerhallas

  I do the following: var @case = new Case { Name = "test" }; // User is persistent and loaded in the same session User.AddCase(@case); // sets @case.User = User too Session.Update(User); response.CaseId = @case.Id; The cascade on User.Cases is set to All. But @case.Id is not set until the transaction is committed. Is that expected behavior? I would very much like to get the Id before committing. Can it be done?

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• how to dynamically recolor a CGGradientRef

  - by saintmac

  I have three CGGradientRef's that I need to be able to dynamically recolor. When I Initialise the CGGradientRef's the first time I get the expected result, but every time I attempt to change the colors nothing happens. Why? gradient is an instance variable ins a subclass of CALayer: @interface GradientLayer : CALayer { CGGradientRef gradient; //other stuff } @end Code: if (gradient != NULL) { CGGradientRelease(gradient); gradient = NULL; } RGBA color[360]; //set up array CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB(); gradient = CGGradientCreateWithColorComponents ( rgb, color, NULL, sizeof (color) / sizeof (color[0]) ); CGColorSpaceRelease(rgb); [self setNeedsDisplay];

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• What action is my Symfony/Doctrine generated form actually going to?

  - by Arms

  In my Symfony 1.4 project I am using the doctrine:generate-admin task to create the modules that compose my backend system. One such module is "journeys". When I view the source of the "journeys/new" page (which displays the form to create a new journey entity) the action of the form is simply "journeys" (I expected it to be "journeys/create"). The "journeys" route on its own would call the executeIndex method - however I put a log call in there and upon form submission, the log is not made. So this leads me to believe that executeIndex is NOT being called, and another piece of code is being fired upon form submission that then (depending on a hidden input in the form) calls either executeCreate() or executeUpdate(). Problem is, I don't know where that would be happening. Any insight would be much appreciated. I don't if this is relevant, but here is the routing definition for the journeys module journey: class: sfDoctrineRouteCollection options: model: journey module: journeys prefix_path: /journeys column: id with_wildcard_routes: true Thanks!

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• O(N log N) Complexity - Similar to linear?

  - by gav

  Hey All, So I think I'm going to get buried for asking such a trivial but I'm a little confused about something. I have implemented quicksort in Java and C and I was doing some basic comparissons. The graph came out as two straight lines, with the C being 4ms faster than the Java counterpart over 100,000 random integers. The code for my tests can be found here; android-benchmarks I wasn't sure what an (n log n) line would look like but I didn't think it would be straight. I just wanted to check that this is the expected result and that I shouldn't try to find an error in my code. I stuck the formula into excel and for base 10 it seems to be a straight line with a kink at the start. Is this because the difference between log(n) and log(n+1) increases linearly? Thanks, Gav

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• Delete cache when web browser is close.

  - by Edy Cu

  Hi all. I have issue about multiple login in asp.net. Case this happen: User X login as "user1" in web browser. Then user Y also login as "user1" also in another web browser. User Y got error message "Another user log in some account". That is work as expected. If X, close their web browser. Then try again to login in as "user1". X get also get "Another user log in some account". So i trying debug then i found session is remove when web browser is close, but cache still remaining in web browser. Anyone have idea about this how to clear cache when user close their browser, (not tab). Regard.

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• How to stub Restul-authentication's current_user method?

  - by Thiago

  Hi there, I'm trying to run the following spec: describe UsersController, "GET friends" do it "should call current_user.friends" do user = mock_model(User) user.should_receive(:friends) UsersController.stub!(:current_user).and_return(user) get :friends end end My controller looks like this def friends @friends = current_user.friends respond_to do |format| format.html end end The problem is that I cannot stub the current_user method, as when I run the test, I get: Spec::Mocks::MockExpectationError in 'UsersController GET friends should call current _user.friends' Mock "User_1001" expected :friends with (any args) once, but received it 0 times[0m ./spec/controllers/users_controller_spec.rb:44: current_user is a method from Restful-authentication, which is included in this controller. How am I supposed to test this controller? Thanks in advance

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• How to define a url not found servlet mapping in web.xml?

  - by user246114

  Hi, I have a web app, I want to define my index.jsp file to be shown when the entered url is like: www.mysite.com www.mysite.com/ www.mysite.com/index.jsp but if any other url is entered, like: wwww.mysite.com/g I want a particular servlet to handle the request. In my web.xml file, I am doing this: <servlet> <servlet-name>ServletCore</servlet-name> <servlet-class>com.me.test.ServletCore</servlet-class> </servlet> <servlet-mapping> <servlet-name>ServletCore</servlet-name> <url-pattern>/*</url-pattern> </servlet-mapping> so that is letting the ServletCore servlet pick up any url, but as expected it is taking over even the: www.mysite.com/index.jsp type urls. How can I define it in such a way to work how I want? Thank you

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• python writing a list to a file

  - by gfar90

  I need to write a list to a file in python. I know the list should be converted to a string with the join method, but since I have a tuple I got confused. I tried a lot to change my variables to strings etc, this is one of my first attempts: def perform(text): repository = [("","")] fdist = nltk.FreqDist(some_variable) for c in some_variable: repository.append((c, fdist[c])) return ' '.join(repository) but it gives me the following error: Traceback (most recent call last): File "", line 1, in qe = perform(entfile2) File "", line 14, in perform return ' '.join(repository) TypeError: sequence item 0: expected string, tuple found any ideas how to write the list 'repository' to a file? Thanks!

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• link_to_remote in rails, problem pass :id

  - by nakada

  i have problem use link_to_remote link_to_remote document example say link_to_remote "Delete this post", :update => "posts", :url => { :action => "destroy", :id => post.id } this code make below html code <a href="#" onclick="new Ajax.Updater('posts', '/blog/destroy/3', {asynchronous:true, evalScripts:true}); return false;">Delete this post</a> but my app don't. my html is <a href="#" onclick="new Ajax.Updater('posts', '/blog/6', {asynchronous:true, evalScripts:true, parameters:'authenticity_token=' + encodeURIComponent('2C4Yo8OIDN+dm9oieL37uRg++PuWa8LCz18gW5Cu+Vg=')}); return false;">Delete this post</a> where is destroy in url? i expected '/blog/destroy/6' but actually 'blog/6' what's the problem? my rails version is 2.3.5

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• AppendTo, does it change the DOM?

  - by JD

  Hi, I have two list boxes and some JQuery function that does the following: $(document).ready(function () { //If you want to move selected item from fromListBox to toListBox $("#AddButton").click(function () { $("#fromListBox option:selected").appendTo("#toListBox"); }); }); I have a button that when clicked moves items from one list to another. This works, however when I do "View Page Source" in chrome, the list contains the original list and not the newly added items. I expected appendTo to change the DOM but clearly this is not what is happening. Why is this? JD

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• Haskell: Why is it saying my function type is off?

  - by linkmaster03

  I wrote a little Haskell program to find the area of a triangle, primarily to practice custom types, but it keeps throwing the following error on compile: areafinder.hs:7:4: Couldn't match expected type 'Triangle' against inferred type 'm b' In a stmt of a 'do' expression: putStr "Base: " In the expression: do { putStr "Base: "; baseStr I'm not sure where 'm b' comes from, so I'm at a loss here. Why is it throwing this error, and what can I do to fix it? Here is my code: module Main where data Triangle = Triangle Double Double -- base, height getTriangle :: Triangle getTriangle = do putStr "Base: " baseStr Double calcTriangle (Triangle base height) = base * height main = putStrLn ("Area = " ++ show (calcTriangle getTriangle)) Thanks. :)

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• 3-clique counting in a graph

  - by Legend

  I am operating on a (not so) large graph having about 380K edges. I wrote a program to count the number of 3-cliques in the graph. A quick example: List of edges: A - B B - C C - A C - D List of cliques: A - B - C A 3-clique is nothing but a triangle in a graph. Currently, I am doing this using PHP+MySQL. As expected, it is not fast enough. Is there a way to do this in pure MySQL? (perhaps a way to insert all 3-cliques into a table?)

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• How do I restore an Apache configuration after a hard restart?

  - by iPhoneARguy

  I installed Apache on my Ubuntu server, and when it installed, it created a directory ~/Apache/ with directories such as htdocs, logs, cgi-bin, etc. I was then able to create several pages and scripts which I placed into the corresponding directories (~/Apache/htdocs, ~/Apache/cgi-bin), and I was able to serve these files on the web. Unfortunately, my server had an unexpected hard restart, and since then, it seems like the files aren't being served. The server is still up, but when I navigate to the URL, I get a page that says "It works!" instead of what was expected. Does anyone know how I can get Apache to serve from ~/Apache/htdocs again? I tried to RTFM and Google for an answer already but it wasn't very helpful.

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• Javascript syntax error

  - by Mel

  Hello, I'm wondering if anyone can help me with a syntax error in line 14 of this code: The debugger says expected ')' after argument list on var json = eval('(' + content ')'); I tried adding a bracket, but it doesn't seem to be working. // Tooltips for index.cfm $(document).ready(function() { $('#catalog a[href]').each(function() { $(this).qtip( { content: { url: 'components/viewgames.cfc?method=fGameDetails', data: { gameID: $(this).attr('href').match(/gameID=([0-9]+)$/)[1] }, method: 'get' }, api: { beforeContentUpdate: function(content) { var json = eval('(' + content ')'); content = $('<div />').append( $('<h1 />', { html: json.TNAME })); return content; } }, }); }); });

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• Navigating between activities and tasks

  - by Alex Orlov

  The situation: I have an activity "A" that is a delegator activity, in simple words, it's only purpose is to call activity "B" (via startActivityForResult()) depending on data it receives. Activity "B" has launchMode set to "singleTask", so it always runs in a single task. When activity "A" gets started from another task (for example as a share from gallery) it immediately returns ACTION_CANCELLED for activity "B", finishes, and task of activity "B" comes to front (which is an expected behavior). So, what happens, is that we jump from our Gallery app task, to my activity "B" task. Everything is fine until user presses back. Since we are already in a different task, the back button doesn't lead us back to gallery. It navigates in the stack of activity "B" task. The question: is there any way to navigate from one task, to previously shown task (navigate from activity "B" to gallery)? Or maybe there is a way to take currently running activity "B" and move it to another task?

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• jquery ui autcomplete does not disapper with no result

  - by mike

  Hi, I'm using jquery ui autocomplete with the following code: $('#company').autocomplete({ source: function(request, response) { var company_name = $('#company').val(); $.ajax({ type: 'post', url: 'http://new.admin.localhost/client/helper/lookup_company_name', cache: false, data: { company : company_name }, dataType: 'json', success: function(data) { //alert(data); response($.map(data.companies, function(item) { return { label: item.company, value: item.company } })) } }) }, minLength: 2, }); This works as expected... The problem is, if the first few chars match something and then you enter a char that should "break" any match, it just keeps the drop down in place with the results for the last matched char... make sense? Would this be something I needed to change in the script that returns the data or something in the jquery? thanks!

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• Why is super.super.method(); not allowed in Java?

  - by Tim Büthe

  I read this question and thought that would easily be solved (not that it isn't solvable without) if one could write: @Override public String toString() { return super.super.toString(); } I'm not sure if it is useful in many cases, but I wonder why it isn't and if something like this exists in other languages. What do you guys think? EDIT: To clarify: yes I know, that's impossible to at to Java and I don't really miss it. This is nothing I expected to work and was surprised getting a compiler error. I just had the idea and like to discuss it.

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• Javascript + IFrame + Chrome + Https = strange issue

  - by GuiDoody

  Using a modal plugin for jquery, I'm opening an iframe in a modal with a click event and setting the source attribute to a relative url (should be within https). The page containing the click is an authenticated ssl page. In IE and Safari, this works as expected. In Chrome and Firefox, the source url is opened in http not https. If I set the source to an absolute url using https, same result. Example: // This doesn't work - resolves to http $('.lnkViewDetails').click(function(e){ var src = "/ThePage"; $.modal('<iframe src="' + src + '" height="500" width="425" style="border:0" frameborder="no">'); }); // This doesn't work - also resolves to http $('.lnkViewDetails').click(function(e){ var src = "https://MySite.com/ThePage"; $.modal('<iframe src="' + src + '" height="500" width="425" style="border:0" frameborder="no">'); }); Anyone know a way to get around this?

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• F# operator over-loading question

  - by jyoung

  The following code fails in 'Evaluate' with: "This expression was expected to have type Complex but here has type double list" Am I breaking some rule on operator over-loading on '(+)'? Things are OK if I change '(+)' to 'Add'. open Microsoft.FSharp.Math /// real power series [kn; ...; k0] => kn*S^n + ... + k0*S^0 type Powers = double List let (+) (ls:Powers) (rs:Powers) = let rec AddReversed (ls:Powers) (rs:Powers) = match ( ls, rs ) with | ( l::ltail, r::rtail ) -> ( l + r ) :: AddReversed ltail rtail | ([], _) -> rs | (_, []) -> ls ( AddReversed ( ls |> List.rev ) ( rs |> List.rev) ) |> List.rev let Evaluate (ks:Powers) ( value:Complex ) = ks |> List.fold (fun (acc:Complex) (k:double)-> acc * value + Complex.Create(k, 0.0) ) Complex.Zero

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• can the keyword 'this' be used in an abstract class in java

  - by Reddy

  I tried with below example, it is working fine. I expected it to pick sub-class's value since object won't be created for super class (as it is abstract). But it is picking up super class's field value only. Please help me understand what is the concepts behind this? abstract class SuperAbstract { private int a=2; public void funA() { System.out.println("In SuperAbstract: this.a "+a); } } class SubClass extends SuperAbstract { private int a=34; } I am calling new SubClass.funA(); I am expecting it to print 34, but it is printing 2.

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• How should I get Xcode to link an iOS project that uses a C++ static library

  - by user1681572

  Using Xcode, I've written a Cocoa Touch static library, mainly in C++. It exposes a C interface for the benefit of Objective-C client code. I have a client iOS app that uses it, and everything works and runs as expected, except that I found I needed to include a minimal .cpp file in the client project to get the link to succeed. Otherwise I get C++-related unresolved symbols, e.g. operator new(unsigned long). The above hack is easy and effective, and so I guess I'm not breaking any laws, but is there a proper way to eliminate my linker errors?

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• Export environment variable from PHP, for use by exec()'d shell command?

  - by anonymous coward

  Somewhat similar to http://stackoverflow.com/questions/2002970/export-a-variable-from-php-to-shell, but my problem is different. I am forced to work with a program that gets an important location variable from an Environment Variable (Linux), rather than a config or, better, a command line option. I have to call this program from within PHP, and currently am doing it like so: shell_exec('/path/to/program option1 option2'); I need to be able to set/override the environment variable that program will be looking for. As an example, this does not work: shell_exec('VAR1=foo /path/to/program option1 option2'); nor does: shell_exec('VAR1=foo; export foo; /path/to/program option1 option2'); for good measure. Both of the above command lines work "as expected" from the shell. Is it possible to override environment variables for programs called via exec, shell_exec, etc?

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• sql server bulk copy out/postgres copy from infile

  - by Chris Curvey

  I'm starting a conversion of a system from MS SQL Server to Postgres. I have the table structures converted, and I use "bcp" to get the data out of SQL Server. ERROR: invalid byte sequence for encoding "UTF8": 0x80 HINT: This error can also happen if the byte sequence does not match the encoding expected by the server, which is controlled by "client_encoding". CONTEXT: COPY cm_outgoing, line 200: "200 c:\temp\200.xml 2009-10-10 01:50:44.000 1900-01-01 00:00:00.000" I've already used "sed" to get rid of the NUL (0x00) entries in the file, and I can't find any instances of 0x80 in the file that I'm trying to import. Any thoughts? Is there an easier way?

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• Explicitly persist states in Workflow 4.0 rather than everything.

  - by jlafay

  I have ran into an issue with my SQL instance store attached to a WorkflowApplication that is running. When I exit my application I'm calling an Unload() on the WF app to persist it. I didn't think about it during design time, but it does makes sense, it's persisting an arg that was passed in to the WorkflowApplication constructor when instanced. When the application runs, everything in the workflow works as expected. When I call Unload() I get an unhandled exception that states that the arg is not serializable and needs [DataContractAttribute]. What's passed into the workflow is my applications custom logger object that I wrote so that the WF can log to disk in a uniform way that I prefer. How do I prevent the workflow app from persisting this one argument and persist everything else? I'm sure something can be done with extensions but I'm having a hard time finding info on them or finding persistence examples for my scenario.

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• Are multiple asserts bad in a unit test? Even if chaining?

  - by Michael Haren

  Is there anything wrong with checking so many things in this unit test?: ActualModel = ActualResult.AssertViewRendered() // check 1 .ForView("Index") // check 2 .WithViewData<List<Page>>(); // check 3 CollectionAssert.AreEqual(Expected, ActualModel); // check 4 The primary goals of this test are to verify the right view is returned (check 2) and it contains the right data (check 4). Would I gain anything by splitting this into multiple tests? I'm all about doing things right, but I'm not going to split things up if it doesn't have practical value. I'm pretty new to unit testing, so be gentle.

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