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• An operator == whose parameters are non-const references

  - by Eduardo León

  I this post, I've seen this: class MonitorObjectString: public MonitorObject { // some other declarations friend inline bool operator==(/*const*/ MonitorObjectString& lhs, /*const*/ MonitorObjectString& rhs) { return lhs.fVal==rhs.fVal; } } Before we can continue, THIS IS VERY IMPORTANT: I am not questioning anyone's ability to code. I am just wondering why someone would need non-const references in a comparison. The poster of that question did not write that code. This was just in case. This is important too: I added both /*const*/s and reformatted the code. Now, we get back to the topic: I can't think of a sane use of the equality operator that lets you modify its by-ref arguments. Do you?

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• HAML-like syntax for non-HTML documents?

  - by Peter

  I love using HAML for HTML documents. It has clean syntax that's much more attractive than ERB. It works perfectly for HTML documents. What about for non-HTML? Such as, for example, an email or text document with certain automatically-substituted components? I've been falling back to ERB, but don't like the heavy syntax compared to HAML. Is there any way to use HAML for ordinary documents without having divs and html elements appear when % and . start a line? Or is there some alternative to both HAML and ERB that I should investigate?

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• MS Detours Library, detouring non win api function

  - by flavour404

  Hi, I want to use the windows detours library to detour a non win api function. The function is part of the Qt library (QtGui4.dll). I am wondering how I would set up the function signature for : void QPainter::drawText ( const QPointF & position, const QString & text ) I had a go with this and it received my usual share of errors, a little explanation of requirements would be interesting as well: void (QPainter * real_drawText)(const QPointF & position, const QString & text) = drawText This is what they look like for TextOut, under the windows API: BOOL (WINAPI * Real_TextOut)(HDC a0, int a1, int a2, LPCWSTR a3, int a4) = TextOutW; BOOL WINAPI Mine_TextOut(HDC hdc,int X,int Y,LPCWSTR text,int textLen) { BOOL rv = Real_TextOut(hdc, X, Y, text, textLen); HWND hWindow = WindowFromDC(hdc); SendTextMessage(hWindow, text); return rv; } Thanks.

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• ASP.NET MVC - ASPX with non-default constructor

  - by bh213

  Is it possible for a ASPX view (in ASP.NET MVC) to have non-default constructor AND use this constructor when creating this view? Example - Page will inherit from this class: public class ViewPageWithHelper<TModel> : System.Web.Mvc.ViewPage<TModel> where TModel : class { public ViewPageWithHelper(Helpers helpers) { Helpers = helpers; } protected Helpers Helpers { get; private set; } } ASPX view: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="MyInjectedViewPage<MyModel>" %> <% Helpers.XXXX %> Now, I'd like to inject Helpers into view somehow - automatically. Ideas?

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• Template type deduction with a non-copyable class

  - by Evan Teran

  Suppose I have an autolocker class which looks something like this: template <T> class autolocker { public: autolocker(T *l) : lock(l) { lock->lock(); } ~autolocker() { lock->unlock(); } private: autolocker(const autolocker&); autolocker& operator=(const autolocker&); private: T *lock; } Obviously the goal is to be able to use this autolocker with anything that has a lock/unlock method without resorting to virtual functions. Currently, it's simple enough to use like this: autolocker<some_lock_t> lock(&my_lock); // my_lock is of type "some_lock_t" but it is illegal to do: autolocker lock(&my_lock); // this would be ideal Is there anyway to get template type deduction to play nice with this (keep in my autolocker is non-copyable). Or is it just easiest to just specify the type?

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• Facebook integration with ASP.NET 4.0 Website(non MVC) - facebooksdk

  - by Surendar Radhakrishnan

  I am trying to integrate my asp.net 4.0(non MVC) website with facebook. I want to retrive the authenticated user info. The samples listed in facebooksdk is based on MVC. i tried to implement it in my website, but getting errors. i am struck. If anyone implemented the facebook connect logic and retrieved the user information using facebook-c#-sdk, please help me how to do this. I tried the same using facebooktoolkit, and i am able to retrive the user info. but the toolkit is having issues with .net 4.0. Greatly appreciated your help.

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• Non-Git Github?

  - by Mihir Singh

  This is probably a really weird question... but is there a non-git Github? I want a place to post my projects and share my code (like Github) but I don't want to have to works with versions, commits, etc. I don't like having to create a link between my folder and my git repo and then push the changes etc. In addition, I don't want to have to have a local copy to create or add files; I can edit existing files in Github, but to create or add files, I have to do it locally and then commit and push. I'm not sure if this is the best site to ask on, but I figured someone might have the answer. Thanks in advance.

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• linq to sql string property from non-null column with default

  - by Barry Fandango

  I have a LINQ to SQL class "VoucherRecord" based on a simple table. One property "Note" is a string that represents an nvarchar(255) column, which is non-nullable and has a default value of empty string (''). If I instantiate a VoucherRecord the initial value of the Note property is null. If I add it using a DataContext's InsertOnSubmit method, I get a SQL error message: Cannot insert the value NULL into column 'Note', table 'foo.bar.tblVoucher'; column does not allow nulls. INSERT fails. Why isn't the database default kicking in? What sort of query could bypass the default anyway? How do I view the generated sql for this action? Thanks for your help!

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• Non-managed by Spring web-application and jar file with Spring features

  - by EugeneP

  My idea is to create a .jar file that contains Services managed by Spring, that should be got by getBean() I want to put it to WEB-INF/lib of a Web-app Then in web-app Servlets I want to get use of the functionality of a Jar file. 1 Idea. Create classes that encapsulate invokation to Spring Context (getBean() etc) So then, I suppose there'll be no problem in using those in Servlets through jar import. Only thing, what kind of context I should use inside .jar to get beans so that it worked after packing into jar? ApplicationContext or what? 2 Idea. Is there another simple solution how to pack into jar and then use Services in a non-managed by Spring environment?

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• Referring to a non-final variable data inside an inner class

  - by shoaibmohammed

  Im doing a program in GWT. Here is the snippet where Im having problem private String[] populateRSSData() { 1==>> String[] data = null; try { new RequestBuilder(RequestBuilder.GET, "../database.php?action=populaterss").sendRequest(null, new RequestCallback() { @Override public void onResponseReceived(Request request, Response response) { 2==>> data=response.getText().split("~"); } @Override public void onError(Request request, Throwable exception) { Window.alert(exception.getMessage()); } }); } catch (RequestException e) { Window.alert(e.getMessage()); } return data; } Now the problem arises that I get an error that the variable 1==>> data should be declared final. But if I declare it as final then i cannot store the datas in 2==>> The error i get Cannot refer to a non-final variable data inside an inner class defined in a different method RSS_Manager.java Please suggest

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• Java Non-Blocking HTTP Server

  - by Marcus

  I have written an application using embedded Jetty that makes network calls to other services. I presume that the serving threads are idle whilst waiting for the network calls to complete. Is there any way to have a worker thread that switches between requests to perform work that can be done at the current time and then when the network calls return also handle that? A request would be returned when all work has been completed for it. I know this is a common paradigm, and I have used it for non-blocking TCP networking, but I'm unsure as to how to achieve this on a Java HTTP server whilst also waiting on external results. Any links or explanations are appreciated. Thanks

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• non www .htaccess redirect - ignore other subdomains.

  - by qxxx

  Hi, I have a .htaccess redirect for "non www" like this: RewriteEngine on RewriteCond %{HTTP_HOST} !^www\. RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L] it is working. But, i have also some subdomains other than www. If I call for example http://shop.example.com it redirects me to: http://www.shop.example.com I dont want to write the subdomains into the .htaccess file, it should work automatically, just ignore anything else than www and '' like this: if subdomain =='' -> redirect to www.HTTP_HOST.... elseif subdomain !='' && subdomain !='www' -> do nothing. thanks!

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• Non-string role names in ASP.NET MVC?

  - by MikeWyatt

  ASP.NET MVC has good support for role-based security, but the usage of strings as role names is maddening, simply because they cannot be strongly-typed as enumerations. For example, I have an "Admin" role in my app. The "Admin" string will now exist in the Authorize attribute of my action, in my master page (for hiding a tab), in my database (for defining the roles available to each user), and any other place in my code or view files where I need to perform special logic for admin or non-admin users. Is there a better solution, short of writing my own authorization attribute and filter, that would perhaps deal with a collection of enumeration values?

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• Deduce non-type template parameter

  - by pezcode

  Is it possible to deduce a non-type template parameter from a template function parameter? Consider this simple template: template <int N> constexpr int factorial() { return N * factorial<N - 1>(); } template <> constexpr int factorial<0>() { return 1; } template <> constexpr int factorial<1>() { return 1; } I would like to be able to change factorial so that I can alternatively call it like this: factorial(5); and let the compiler figure out the value of N at compile time. Is this possible? Maybe with some fancy C++11 addition?

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• Ruby on Rails: Unit Testing non activerecord models and still load fixtures

  - by Vaibhav Gumashta

  I may be missing something but I am stuck in this scenario: I have a non activerecord model, which I want to test. I have derived its test case class from: Test::Unit::TestCase. However, the test case class for the model, uses within itself, other activerecord model classes and I want to load fixtures for them. My problem is that the fixtures class method is available only when I subclass the test case class from ActiveSupport::TestCase (it is defined within ActiveRecord::TestFixtures which gets included in ActiveSupport::TestCase). Any help, coz running the tests gives me the error: undefined method "fixtures" (which is understandable) and in case I derive my test case class from ActiveSupport::TestCase it complains that there is no corresponding DB table. Also, I don't want to create a dummy table for backing my model class. Thanks a ton!

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• How to configure a has_many association with non-ActiveRecord model

  - by Callmeed

  My Rails app has a normal ActiveRecord "Account" model stored in the database. The model will store the URL to a remote XML file which defines some other objects. For example, the Account has_many :galleries but the Gallery model is simply defined by nodes in the XML document. So how do I get /accounts/1/galleries to show the galleries from that account's XML? How do I setup this relationship? I know how to do basic non-AR models, but I'm not sure how to define the association or if I need to create a Gallery model at all.

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• Choosing the non-empty Monoid

  - by Nikita Volkov

  I need a function which will choose a non-empty monoid. For a list this will mean the following behaviour: > [1] `mor` [] [1] > [1] `mor` [2] [1] > [] `mor` [2] [2] Now, I've actually implemented it but am wondering wether there exists some standard alternative, because it seems to be a kind of a common case. Unfortunately Hoogle doesn't help. Here's my implementation: mor :: (Eq a, Monoid a) => a -> a -> a mor a b = if a /= mempty then a else b

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• Changing content using innerHTML with a non-standard element in Internet Explorer

  - by Gus

  I have the non-standard element <testele></testele> In every browser except IE, this bit of JavaScript will successfully change the content of the above element document.getElementsByTagName("testele")[0].innerHTML = 'hi'; However, if I change the <testele> to just a <span> (in the HTML and the JavaScript), it now successfully changes the content of the element in every browser, including IE. Is there any fix? I have searched around and tried a bunch to no avail.

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• Non-Profit Volunteer Opportunities

  - by Sean

  I have seen questions on SO regarding volunteering for potential employers or volunteering to help out on open source projects. But what about putting your IT skills to use at traditional non-profit organizations as a volunteer? I would like to volunteer some time to a worthwhile cause in 2010, but am having a hard time finding organizations who may need IT help. Does anyone do this? Are there any websites out there to help one find organizations looking for such help? I would think some must have a need for free software development type work? I saw a bit on 'WeVolunteer' that publishes a database of volunteer opportunities (http://www.wetv.com/volunteer.html), but it seems to be more 'typical' volunteer opportunities (soup kitchens, walk-a-thons, etc).

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• Accessing non-related entities in LinqToSql entity classes

  - by Chris Johnson

  In LinqToSql, if I want to access a non-related entity in an entity partial class, how do I do this without creating a new DataContext? Here's the scenario: I have the tables Client, IssueType and ClientIssueType. A Client may specify a list of IssueTypes if they do not want to use the default IssueTypes. I have the default IssueTypes in the ClientIssueType table with a ClientId of null. In my Client partial I'd like to try to retrieve all IssueTypes, and if none are found, return all default IssueTypes. The only way I can see of accessing the IssueTypes with a null ClientId is by accessing the table through a new DataContext, which is problematic once I want to start assigning them to Issues. Where am I going wrong?

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• Loading non-RJS javascript via ajax in Rails

  - by David Smith

  I've written a rails module that generates some javascript for a google map. As the user makes changes on the webpage, I use observe_field to call back to the server to regenerate the map's javascript (without updating the whole page). I'm having trouble finding a good way to insert the new javascript into the page. I've tried <div id='my_div_1'>div1</div> <%= update_page_tag do |page| page.replace_html 'my_div_1', "<script>alert('hi');</script>" end %> but it seems that replace_html only works for non-script html. It chokes when the content includes the closing < /script tag. Additional information...here is a page that I think is the root of the problem. http://www.wwco.com/~wls/blog/2007/04/25/using-script-in-a-javascript-literal/

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• How to enable reading non-ascii characters in Servlets

  - by Daziplqa

  How to make the servlet accept non-ascii (Arabian, chines, etc) characters passed from JSPs? I've tried to add the following to top of JSPs: <%@page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> And to add the following in each post/get method in the servlet: request.setCharacterEncoding("UTF-8"); response.setCharacterEncoding("UTF-8"); I've tried to add a Filter that executes the above two statements instead of in the servlet. To be quite honest, these was working in the past, but now it doesn't work anymore. I am using tomcat 5.0.28/6.x.x on JDK1.6 on both Win & Linux boxes.

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• non-static method setPrzechowaj(java.lang.String) cannot be referenced froma a static context

  - by bigbluedragon

  hey i have problem with JDialogForm. I have created it using netbeans 6.8. That JDialogForm have textfield and button below it. and here is some code... private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { String sciezka = jTextField1.getText(); if (sciezka.length() > 0) { Zmienne_pomocnicze.setPrzechowaj(sciezka); } } Now i want to copy that string "sciezka" to my main window but if I do it like this public class Zmienne_pomocnicze { public String n; public void setPrzechowaj (String neew) { n = neew; } public String getPrzechowaj () { return n; } } i get error in jButton1: non-static method setPrzechowaj(java.lang.String) cannot be referenced froma a static context any ideas?

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• empty() returning TRUE on object's non-empty property

  - by Michal M

  I've got a very weird and unexpected problem. empty() is returning TRUE on a non-empty property for a reason unknown to me. class MyObject { private $_property; public function __construct($property) { $this->_property = $property; } public function __get($name) { $priv_name = "_{$name}"; if (isset($this->$priv_name)) { return $this->$priv_name; } else { return NULL; } } } $obj = new MyObject('string value'); echo $obj->property; // Output 'string value' echo empty($obj->property); // Output 1 (means, that property is empty) Would this mean, that the __get() magic function is not called when using empty()? btw. I'm running PHP version 5.0.4

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• Data table to Excel conversion leaves my server side button non responsive

  - by Nikhil Vaghela

  We have a web part on which we display some data in a grid. We are exporting grid's underlying datatable to Excel and displaying Open - Save - Cancel dialouge box on click of a server side button. Following is the code we are executing on click of server side button. this.Page.Response.Clear(); this.Page.Response.AppendHeader("Content-Disposition", "attachment; filename=MyTasks.xls"); this.Page.Response.ContentType = "application/ms-excel"; this.Page.Response.Write("...here goes my well formated html...."); this.Page.Response.End(); Problem is that when i click on Cancel in the diaglouge box then dialogue box to Open/Save excel disappears but all the server side buttons placed on my web part becomes non responsive, on click of any of those buttons their server side click event does not get fired !!! Any idea ? Thanks.

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