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  • Constructor overriding

    - by demas
    I have a library with a class: class One def initialize puts "one initialize" end end I can not change the declaration and difinition of this class. I need create new class with my own constructor. Like this: class Two < One def initialize(some) puts some super end end one = One.new one = Two.new("thing") But when I launch code I got error: [[email protected]][~/temp]% ruby test.rb one initialize thing test.rb:10:in `initialize': wrong number of arguments (1 for 0) (ArgumentError) from test.rb:15:in `new' from test.rb:15:in `<main>'

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  • Git pre-receive hook

    - by Ralphz
    Hi When you enable pre-receive hook for git repository: It takes no arguments, but for each ref to be updated it receives on standard input a line of the format: < old-value SP < new-value SP < ref-name LF where < old-value is the old object name stored in the ref, < new-value is the new object name to be stored in the ref and is the full name of the ref. When creating a new ref, < old-value is 40 0. Does anyone can explain me how do I examine all the files that will be changed in the repository if i allow this commit? I'd like to run that files through some scripts to check syntax and so on. Thanks.

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  • Unit testing "hybrid" WPF/Silverlight controls

    - by Alan Mendelevich
    I'm starting a new WPF/Silverlight custom control project and wanted to do unit testing on this one. However I'm a little confused about how to approach this. This control would be based on the same codebase for both WPF and Silverlight with minor forking using #ifs and partial classes to tame the differences. I guess I could write unit tests for WPF part with NUnit, MSTest, xUnit, etc. and for the Silverlight part with Silverlight Unit Test Framework but this doesn't sound very elegant to me. I'd have to either ignore testing identical code on one of the platforms and test only differing parts (which is not very trustworthy) or rewrite tests for 2 frameworks (which is annoying). Is this the right way to go? I'm wondering if there's some guidance, articles, tutorials out there on how to approach this task. Any pointers?

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  • Regex Searching in Emacs

    - by Inaimathi
    I'm trying to write some Elisp code to format a bunch of legacy files. The idea is that if a file contains a section like "<meta name=\"keywords\" content=\"\\(.*?\\)\" />", then I want to insert a section that contains existing keywords. If that section is not found, I want to insert my own default keywords into the same section. I've got the following function: (defun get-keywords () (re-search-forward "<meta name=\"keywords\" content=\"\\(.*?\\)\" />") (goto-char 0) ;The section I'm inserting will be at the beginning of the file (or (march-string 1) "Rubber duckies and cute ponies")) ;;or whatever the default keywords are When the function fails to find its target, it returns Search failed: "[regex here]" and prevents the rest of evaluation. Is there a way to have it return the default string, and ignore the error?

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  • Reading numeric Excel data as text using xlrd in Python

    - by Brian
    Hi guys, I am trying to read in an Excel file using xlrd, and I am wondering if there is a way to ignore the cell formatting used in Excel file, and just import all data as text? Here is the code I am using for far: import xlrd xls_file = 'xltest.xls' xls_workbook = xlrd.open_workbook(xls_file) xls_sheet = xls_workbook.sheet_by_index(0) raw_data = [['']*xls_sheet.ncols for _ in range(xls_sheet.nrows)] raw_str = '' feild_delim = ',' text_delim = '"' for rnum in range(xls_sheet.nrows): for cnum in range(xls_sheet.ncols): raw_data[rnum][cnum] = str(xls_sheet.cell(rnum,cnum).value) for rnum in range(len(raw_data)): for cnum in range(len(raw_data[rnum])): if (cnum == len(raw_data[rnum]) - 1): feild_delim = '\n' else: feild_delim = ',' raw_str += text_delim + raw_data[rnum][cnum] + text_delim + feild_delim final_csv = open('FINAL.csv', 'w') final_csv.write(raw_str) final_csv.close() This code is functional, but there are certain fields, such as a zip code, that are imported as numbers, so they have the decimal zero suffix. For example, is there is a zip code of '79854' in the Excel file, it will be imported as '79854.0'. I have tried finding a solution in this xlrd spec, but was unsuccessful.

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  • Passing Interface Class as a Parameter in Java

    - by aleclerc
    I have an interface: public interface IMech { } and a class that implements it public class Email implements IMech { } and a third class that has this method implemented: public void sendNotification( Class< IMech > mechanism ){ } now I'm trying to call that method like so foo.sendNotification(Email.class); but i keep getting an exception saying: The method sendNotification(Class<IMechanism>) in the type RemediationOperator is not applicable for the arguments (Class<EmailNotification>) Shouldn't this work if it interfaces that class?

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  • jQuery style Constructors in PHP

    - by McB
    Is there a way to instantiate a new PHP object in a similar manner to those in jQuery? I'm talking about assigning a variable number of arguments when creating the object. For example, I know I could do something like: ... //in my Class __contruct($name, $height, $eye_colour, $car, $password) { ... } $p1 = new person("bob", "5'9", "Blue", "toyota", "password"); But I'd like to set only some of them maybe. So something like: $p1 = new person({ name: "bob", eyes: "blue"}); Which is more along the lines of how it is done in jQuery and other frameworks. Is this built in to PHP? Is there a way to do it? Or a reason I should avoid it?

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  • Good input validation loop using cin - C++

    - by Alex
    Hi there, I'm in my second OOP class, and my first class was taught in C#, so I'm new to C++ and currently I am practicing input validation using cin. So here's my question: Is this loop I constructed a pretty good way of validating input? Or is there a more common/accepted way of doing it? Thanks! Code: int taxableIncome; int error; // input validation loop do { error = 0; cout << "Please enter in your taxable income: "; cin >> taxableIncome; if (cin.fail()) { cout << "Please enter a valid integer" << endl; error = 1; cin.clear(); cin.ignore(80, '\n'); } }while(error == 1);

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  • Sending data recursively using jquery $.ajax gives stack overflow error..

    - by Rosdi
    Why am I getting "too much recursion" error when I do the following? function sendTheNames() { alert("start submitting names.."); return function (array) { var name = $(array.shift()).text(); $.ajax({ url: "test.jsp?name=" + name, complete: function () { if (array.length > 0) { return arguments.callee(array); } } }); }; } $(document).ready(function () { var selectedNames = []; $('ul li input:checked').each(function () { selectedNames.push($(this).parent()); }); alert("begin"); sendTheNames()(selectedNames); alert("done"); });

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  • .htaccess : Forward any link to /index.htm

    - by Kevin
    Hey all, I'd like to do the following: If a user gets to a url or types it in, and it is along the lines of any the following: /path/path/path /path /path/path/ I would like htaccess to forward them to that url + /index.htm before triggering a 404. Also, I would like to ignore this rule for certain paths. Here is what I was trying and wasn't having success: RewriteCond %{REQUEST_URI} !^(admin) RewriteCond %{REQUEST_URI} !^(node) RewriteRule ^/(.*)/$ $1/index.htm [L] Here is how the app is outlined. It is actually a subdirectory within an application as the site is in transition at the moment. ParentApp/ /folder/ /folder/ /Drupal/ /(new application here) /... /...

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  • How to: WCF XML-RPC client?

    - by mr.b
    I have built my own little custom XML-RPC server, and since I'd like to keep things simple, on both server and client side, what I would like to accomplish is to create a simplest possible client (in C# preferably) using WCF. Let's say that Contract for service exposed via XML-RPC is as follows: [ServiceContract] public interface IContract { [OperationContract(Action="Ping")] string Ping(); // server returns back string "Pong" [OperationContract(Action="Echo")] string Echo(string message); // server echoes back whatever message is } So, there are two example methods, one without any arguments, and another with simple string argument, both returning strings (just for sake of example). Service is exposed via http. Aaand, what's next? :) P.S. I have tried googling around for samples and similar, but all that I could come up with are some blog-related samples that use existing (and very big/numerous) classes, which implement appropriate IContract (or IBlogger) interfaces, so that most of what I am interested is hidden below several layers of abstraction...

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  • Bind multiple request parameters to one object in Spring 3

    - by Max
    Hi, I can't figure out a way to bind several arguments and headers to one request parameter using annotations in Spring 3. For example, let's say I'm getting this request: Headers: Content-type: text/plain; POST Body: Name: Max Now I want it all to mysteriously bind to this object: class NameInfo { String name; } Using some code like this: String getName() { if ("text/plain".equals(headers.get("content-type"))) { return body.get("name"); } else if ("xml".equals(headers.get("content-type")) { return parseXml(body).get("name"); } else ... } So that in the end I would be able to use: @RequestMapping(method = RequestMethod.POST) void processName(@RequestAttribute NameInfo name) { ... } Is there a way to achieve something similar to what I need? Thanks in advance.

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  • Cloud Agnostic Architecture?

    - by Dave
    Hi, I'm doing some architecture work on a new solution which will initially run in Windows Azure. However I'd like the solution (or at least the architecture/design) to be Cloud Agnostic (to whatever extent is realistic). Has anyone done any work on this front or seen any good white papers/blog posts? Our highlevel architecture will consist of a payload being sent to a web service (WCF for instance), this will be dumped on a queue (for arguments sake) and a worker process will grab messages off this queue and proccess them. There will be a database of customer information which we'd ideally like to keep out of the cloud however there are obvious performance considerations. Keen to hear other's thoughts. Cheers Dave

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  • DataTable C# Empty column type

    - by Dested
    I am trying build a DataTable one row at a time using the following code. foreach (var e in Project.ProjectElements[hi.FakeName].Root.Elements()) { index = 0; object[] obj=new object[count]; foreach (var holdingColumn in names) { string d = e.Attribute(holdingColumn.Key).Value; obj[index++] = d; } dt.Rows.Add(obj); } The problem is the DataTable has types tied to the columns. Sometimes im passing null (or an empty string) in that object index and it is telling me that it cant be converted properly to a DateTime (in this case). My question is what should I default this value to, or is there some way to have the DataTable ignore empty values.

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  • Redmine connecting to SVN through SSL

    - by Pekka
    I am having trouble connecting Redmine to a locally hosted subversion repository using SSL. I suspect it's the self-signed certificate that usually triggers a warning in the SVN client and browser. When I try to connect to the local repo through SSL in Redmine, I get a red "Revision not available" error. When I try connecting through svn://, the connection times out, and I have to restart the web server. Connecting without SSL works without problems. It would be nice to run subversion on SSL to make it safely accessible from the outside as well. I could run the repository through plain HTTP but would like SSL for outside communication. As far as I understand, subversion can't be run both ways at the same time. Does anybody know what to do in such a situation? Is there a configuration setting to ignore invalid certificates somewhere?

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  • Ivy: Publishing all artefacts in a directory

    - by Dave Flowers
    I'm looking to move to Apache Ivy for dependency management on one of our existing projects. The project publishes many artefacts, and the artefacts it produces are likely to change in the future, so I don't want to enumerate all of the publications in the ivy.xml file -- I'd like Ivy to just publish all the files in a given directory. I considered auto-generating a list of the files built and using XSLT to insert it into the ivy.xml, but that seems a little cumbersome for what I'd expect to be a reasonably common requirement. Is there a better way to do this? Can Ivy pick up all the files in a directory and ignore the publications in the Ivy file? Or is there some way to get Ivy to use different files for publication and for fetching, so I can avoid having to use XSLT to merge the files.

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  • Emacs Lisp: How to use ad-get-arg and ad-get-args?

    - by RamyenHead
    I'm not sure I am using ad-get-args and ad-get-arg right. For example, the following code doesn't work. (defun my-add (a b) (+ a b)) (defadvice my-add (after my-log-on activate) (message "my-add: %s" (ad-get-args))) (my-add 1 2) The last expression causes an error: Debugger entered--Lisp error: (void-function ad-get-args). The following doesn't work either. (defun my-substract (a b) (- a b)) (defadvice my-substract (around my-log-on activate) (message "my-substract: %s" (ad-get-arg 0)) (ad-do-it)) (my-substract 10 1) The defadvice gives a warning: Warning: `(setq ad-return-value (ad-Orig-my-substract a b))' is a malformed function And the last expression gives an error: Debugger entered--Lisp error: (invalid-function (setq ad-return-value (ad-Orig-my-substract a b))) (setq ad-return-value (ad-Orig-my-substract a b))() I was trying to use defadvice to watch start-process arguments for debugging purposes and I found my way of using ad-get-arg didn't work.

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  • ASP.Net MVC elegant UI and ModelBinder authorization

    - by SDReyes
    We know authorization stuff is a cross cutting concern, and we do anything we could to avoid merge business logic in our views. But I still not found an elegant way to filter UI components (e.g. widgets, form elements, tables, etc) using the current user roles without contaminate the view with business logic. same applies for model binding. Example Form: Product Creation Fields: Name Price Discount Roles: Role Administrator Is allowed to see and modify the Name field Is allowed to see and modify the Price field Is allowed to see and modify the Discount Role Administrator assistant Is allowed to see and modify the Name Is allowed to see and modify the Price Fields shown in each role are different, and model binding needs to ignore the discount field for 'Administrator assistant' role. How would you do it?

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  • Help needed with Javascript Variable Scope / OOP and Call Back Functions

    - by gargantaun
    I think this issue goes beyond typical variable scope and closure stuff, or maybe I'm an idiot. Here goes anyway... I'm creating a bunch of objects on the fly in a jQuery plugin. The object look something like this function WedgePath(canvas){ this.targetCanvas = canvas; this.label; this.logLabel = function(){ console.log(this.label) } } the jQuery plugin looks something like this (function($) { $.fn.myPlugin = function() { return $(this).each(function() { // Create Wedge Objects for(var i = 1; i <= 30; i++){ var newWedge = new WedgePath(canvas); newWedge.label = "my_wedge_"+i; globalFunction(i, newWedge]); } }); } })(jQuery); So... the plugin creates a bunch of wedgeObjects, then calls 'globalFunction' for each one, passing in the latest WedgePath instance. Global function looks like this. function globalFunction(indicator_id, pWedge){ var targetWedge = pWedge; targetWedge.logLabel(); } What happens next is that the console logs each wedges label correctly. However, I need a bit more complexity inside globalFunction. So it actually looks like this... function globalFunction(indicator_id, pWedge){ var targetWedge = pWedge; someSql = "SELECT * FROM myTable WHERE id = ?"; dbInterface.executeSql(someSql, [indicator_id], function(transaction, result){ targetWedge.logLabel(); }) } There's a lot going on here so i'll explain. I'm using client side database storage (WebSQL i call it). 'dbInterface' an instance of a simple javascript object I created which handles the basics of interacting with a client side database [shown at the end of this question]. the executeSql method takes up to 4 arguments The SQL String an optional arguments array an optional onSuccess handler an optional onError handler (not used in this example) What I need to happen is: When the WebSQL query has completed, it takes some of that data and manipulates some attribute of a particular wedge. But, when I call 'logLabel' on an instance of WedgePath inside the onSuccess handler, I get the label of the very last instance of WedgePath that was created way back in the plugin code. Now I suspect that the problem lies in the var newWedge = new WedgePath(canvas); line. So I tried pushing each newWedge into an array, which I thought would prevent that line from replacing or overwriting the WedgePath instance at every iteration... wedgeArray = []; // Inside the plugin... for(var i = 1; i <= 30; i++){ var newWedge = new WedgePath(canvas); newWedge.label = "my_wedge_"+i; wedgeArray.push(newWedge); } for(var i = 0; i < wedgeArray.length; i++){ wedgeArray[i].logLabel() } But again, I get the last instance of WedgePath to be created. This is driving me nuts. I apologise for the length of the question but I wanted to be as clear as possible. END ============================================================== Also, here's the code for dbInterface object should it be relevant. function DatabaseInterface(db){ var DB = db; this.sql = function(sql, arr, pSuccessHandler, pErrorHandler){ successHandler = (pSuccessHandler) ? pSuccessHandler : this.defaultSuccessHandler; errorHandler = (pErrorHandler) ? pErrorHandler : this.defaultErrorHandler; DB.transaction(function(tx){ if(!arr || arr.length == 0){ tx.executeSql(sql, [], successHandler, errorHandler); }else{ tx.executeSql(sql,arr, successHandler, errorHandler) } }); } // ---------------------------------------------------------------- // A Default Error Handler // ---------------------------------------------------------------- this.defaultErrorHandler = function(transaction, error){ // error.message is a human-readable string. // error.code is a numeric error code console.log('WebSQL Error: '+error.message+' (Code '+error.code+')'); // Handle errors here var we_think_this_error_is_fatal = true; if (we_think_this_error_is_fatal) return true; return false; } // ---------------------------------------------------------------- // A Default Success Handler // This doesn't do anything except log a success message // ---------------------------------------------------------------- this.defaultSuccessHandler = function(transaction, results) { console.log("WebSQL Success. Default success handler. No action taken."); } }

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  • Drawing a continuous rectangle

    - by JAYMIN
    Hi..i m currently working on visual c++ 2008 express edition.. in my project i have a picturebox which contains an image, now i have to draw a rectangle to enaable the user to select a part of the image.. I have used the "MouseDown" event of the picturebox and the below code to draw a rectangle: Void pictureBox1_MouseDown(System::Object^ sender, Windows::Forms::MouseEventArgs^ e) { Graphics^ g = pictureBox1-CreateGraphics(); Pen^ pen = gcnew Pen(Color::Blue); g-DrawRectangle( pen , e-X ,e-Y,width,ht); } now in the "DrawRectangle" the arguments "width" and "ht" are static, so the above code results in the drawing of a rectangle at the point where the user presses the mouse button on the image in picturebox... i want to allow the user to be able to drag the cursor and draw a rectangle of size that he wishes to.. Plz help me on this.. Thanx..

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  • how to detect an IMAPMessage is not an email but a Task or Calendar item

    - by raticulin
    I am accessing Lotus and Groupwise using javamail via IMAP, recursively accessing all folders and processing email I find. But in folders like Tasklist and Calendar (those are from Groupwise but I think I remember Lotus had similar things), I get the items in there as instances of IMAPMessage, and so they are processed as if they were mail. I understand those items get exposed as mail through the IMAP protocol (either by design or by mistake), but I only want to process proper mail. Is there a way to do this? I have dismissed following approaches so far: Make sure the message has a message-id, at least in Groupwise Calendar items have it. Ignore folders by name (such as Calendar and Tasklist): is not totally correct as a user can move mail inside those folders. What I am looking is some IMAP api call I have missed so far or something in those lines...

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  • JavaScript Metaprogramming: Reduce boilerplate of adding functions to a function queue

    - by thurn
    I'm working with animation in JavaScript, and I have a bunch of functions you can call to add things to the animation queue. Basically, all of these functions look like this: function foo(arg1, arg2) { _eventQueue.push(function() { // actual logic } } I'm wondering now if it would be possible to cut down on this boilerplate a little bit, though, so I don't need that extra "_eventQueue" line in the function body dozens of times. Would it be possible, for example, to make a helper function which takes an arbitrary function as an argument and returns a new function which is augmented to be automatically added to the event queue? The only problem is that I need to find a way to maintain access to the function's original arguments in this process, which is... complicated.

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  • How to get all paths in drupal install

    - by Aaron
    Hi, I need to write a module that gives me a page will all possible paths in a drupal install, including orphaned pages. (site map won't work for that). I can query the url_alias table for aliases, and I can query the menu_router table for all paths, even ones set in page/feed displays in views. But, variable paths (those with arguments) get interpreted at run-time. So, is there a way to get all possible paths in a drupal install, including dynamic paths and orphans? It's catch22. I have to know all the urls ahead of time to get them.

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  • regular expressions: love or hate or alternatives?

    - by yamspog
    While I can see the value and usefulness of regular expressions, I also find that they are extremely complicated and difficult to create and debug. I am often at the point where I find their usefulness is offset by the difficulty in creating expressions. I am a bit astonished by the fact that there is nothing quite like them and that there hasn't been an effort to recreate them use a more verbose or less arcane syntax. so, are regular expressions here to stay? are there alternatives that are gaining traction? do other people just ignore them and write hundreds of lines of string compare functions?

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  • Cache for everybody except staff members.

    - by Oli
    I have a django site where I want to stick an "admin bar" along the top of every non-admin page for staff members. It would contain useful things like page editing tools, etc. The problem comes from me using the @cache_page decorator on lots of pages. If a normal user hits a page, the cached version comes up without the admin bar (even for admin users) and if an admin hits the page first, normal users see the admin bar. I could tediously step through the templates, adding regional cache blocks but there are a lot of templates, and life is altogether too short. Ideally, there would be a way of telling the caching to ignore cache get/set requests from admin users... But I don't know how to best implement that. How would you tackle this problem?

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