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  • require_owner code to limit controller actions not recognizing current user as owner

    - by bgadoci
    I am trying to restrict access to certain actions using a before_filter which seems easy enough. Somehow the ApplicationController is not recognizing that the current_user is the owner of the user edit action. When I take the filter off the controller correctly routes the current_user to their edit view information. Here is the code. Link to call edit action from user controller (views/questions/index.html.erb): <%= link_to "Edit Profile", edit_user_path(:current) %> ApplicationController (I am only posting the code that I think is affecting this but can post the whole thing if needed). class ApplicationController < ActionController::Base def require_owner obj = instance_variable_get("@#{controller_name.singularize.camelize.underscore}") # LineItem becomes @line_item return true if current_user_is_owner?(obj) render_error_message("You must be the #{controller_name.singularize.camelize} owner to access this page", root_url) return false end end and the before_filter class UsersController < ApplicationController before_filter :require_owner, :only => [:edit, :update, :destroy] #... end I simply get the rendering of the error message from the ApplicationController#require_owner action.

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  • my first shader in WebGL

    - by Diego
    Hello, I am writing my first shader in WebGL. I was wondering if the GLSL language has any way to evaluate if an attribute or a uniform is null. According to the specs it does not support to do something like if (attributeX) { dothis(); } else{ dothat(): } And I think it would be a waste to write a bool attribute for each of these cases would be a waste. Another question: what happen during rendering when you don't pass along the uniforms or attribs to the shader? Thanks!

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  • Is there a cross-browser way for tooltips?

    - by Legend
    I am working with d3.js for rendering my graphs. For some reason, I am not a huge fan of svg title because of the delay it incurs and the inability to style them. Please do correct me if I am wrong. I recently came across, tipsy but it does not seem to be cross-browser compatible. For instance, consider this. The tooltips work just fine in Firefox and Chrome but do not appear even in IE 9 and I'm not sure what's going on. Is there a cleaner cross-browser approach for tooltips compatible with d3.js other than using the svg title attribute?

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  • How do I Store / Access Translations Efficiently?

    - by Gilbert
    I am trying to translate some of the phrases of my website into various languages. so, in my database, I have a table with rows of ID//text//dest_language//text_in_dest_language At the moment, I retreive each translation one by one: get text_in_dest_language where text="Hello World" and dest_languge="zh" This results in 40-50 db calls per page, which, on the app engine, is rather slow. What can I do to mitigate this slowdown?

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  • Corrupted image if variable is not static

    - by Jaka Jancar
    I'm doing the following: static GLfloat vertices[3][3] = { {0.0, 1.0, 0.0}, {1.0, 0.0, 0.0}, {-1.0, 0.0, 0.0} }; glColor4ub(255, 0, 0, 255); glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(3, GL_FLOAT, 0, vertices); glDrawArrays(GL_TRIANGLES, 0, 9); glDisableClientState(GL_VERTEX_ARRAY); This works ok: However, if I remove static from vertices and therefore re-create the data on the stack on each rendering, I get the following: This happens both on the simulator and on the device. Should I be keeping the variables around after I call glDrawArrays?

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  • Cocoa Touch: Why doesn't UINavigationController render 'Back' button?

    - by Joshua
    When I push a view controller it animates properly and slides in, the only problem is that no 'Back' button is rendered up top.The back button is still there, I can still tap it, it just doesn't render on the screen. This behavior is identical in both the simulator and on multiple devices. Is this a known issue or bug? Using 3.1.3 of the iPhone SDK. More information: It renders it for further levels, just not on the second level of nav controller. So Main Page (No back button - OK). Second level page (back button, but doesn't render - not OK). Third level page (Back button there and rendering - OK).

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  • Which is faster when animating the UI: a Control or a Picture?

    - by Christopher Walker
    /I'm working with and testing on a computer that is built with the following: {1 GB RAM (now 1.5 GB), 1.7 GHz Intel Pentium Processor, ATI Mobility Radeon X600 GFX} I need scale / transform controls and make it flow smoothly. Currently I'm manipulating the size and location of a control every 24-33ms (30fps), ±3px. When I add a 'fade' effect to an image, it fades in and out smoothly, but it is only 25x25 px in size. The control is 450x75 px to 450x250 px in size. In 2D games such as Bejeweled 3, the sprites animate with no choppy animation. So as the title would suggest: which is easier/faster on the processor: animating a bitmap (rendering it to the parent control during animation) or animating the control it's self?

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  • Stable URL of acts_as_taggable plugin in Ruby on Rails

    - by Rakesh Gupta
    Hi, In one of my applications on Ruby on Rails, I am using acts_as_taggable plugin. Coding was doing fine and suddenly it started giving following error. RuntimeError (acts_as_taggable_on_steroids has been moved to github: http://github.com/jviney/acts_as_taggable_on_steroids): app/models/post.rb:2 app/controllers/post_controller.rb:324:in post_scoper' app/controllers/post_controller.rb:221:indefault' C:\MyApp\script\server:3 -e:2:in `load' -e:2 Rendered rescues/_trace (94.0ms) Rendered rescues/_request_and_response (15.0ms) Rendering rescues/layout (internal_server_error) When trying installing the plugin from above URL, it says plugin has been moved. Does anyone have idea, what is the stable URL of acts_as_taggable plugin? Thanks in advance

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  • Javascript link SEO

    - by vetri
    I have a page where in a photo and description link is there, i want replace the hard coded link with a javascript,which will add them,as i dont want the search engine to scroll the links.I dont wanna use "nofollow" attribute.How to code it in js.

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  • Error when restoring SSAS cube: MemberKeyesUnique element at line xxx cannot appear under (...)/Hier

    - by Phil
    Hi, I'm getting this error when trying to restore an SSAS database from a backup: The ddl2:MemberKeysUnique element at line 63, column 4862 (namespace http://schemas.microsoft.com/analysisservices/2003/engine/2) cannot appear under Load/ObjectDefinition/Dimension/Hierarchies/Hierarchy. Google hasn't turned up any helpful solutions. (a lot of people found that installing SP2 made the error go away but this has always previously worked in our environment) I don't really understand what the error means. Can somebody interpret or suggest a fix? Thanks, Phil

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  • Remove leading whitespaces using variable length lookbehind in RegExp

    - by Shizhidi
    Hello, I'm wondering if variable length lookbehind assertions are supported in JavaScript's RegExp engine? For example, I'm trying to match the string "variable length" in the string "[a lot of whitespaces and/or tabs]variable length lookbehind", and I have something like this but it does not go well in various RegExp testers: ^(?<=[ \t]+).+(?= lookbehind) If it's an illegal pattern, what would be a good workaround to it? Thanks!

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  • Rails: render a partial from a plugin

    - by Sam
    I'm getting a missing template error after I try rendering a partial from a plugin. I have included the files with the following: %w{ models controllers helpers views }.each do |dir| path = File.join(File.dirname(__FILE__), 'app', dir) $LOAD_PATH << path ActiveSupport::Dependencies.load_paths << path ActiveSupport::Dependencies.load_once_paths.delete(path) end The Models are getting loaded, but as for other things I'm not sure what's going on. The helpers are not getting loaded too because I just copied the contents of the partial from the plugin instead of the render :partial = and then it came up with a helper error. Question is how to be able to :render :partial = from the views folder in my plugin

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  • Drag and drop + custom drawing in Android

    - by Rich
    I am working on something that needed custom drag-and-drop functionality, so I have been subclassing View, doing a bunch of math in response to touch events, and then rendering everything manually through code on the canvas in onDraw. Now, the more functionality I add, the more the code is growing out of control and I find myself writing a ton more code than I would expect to write in a high level environment like Android. Is this how it's done, or am I missing something? If I'm not doing anything fancy in the UI, the framework handles the majority of my interactions. Built-in controls handle the touches and drags, and my code is pretty much limited to business logic and data. Is there a way to leverage the power of some of the UI controls and things like animations while also doing some of it manually in the onDraw canvas? Is there an accepted standard of when to use one or the other (if indeed the two approaches can be mixed)?

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  • Firefox 17 and CSS borders based triangles = crap

    - by Adeher
    Like many front-end devs, I've been using the border trick to render triangles in CSS. http://apps.eky.hk/css-triangle-generator/ this generator helps with the technique. Today, like every week (almost), the Firefox team released a new version without any clear changelog on the rendering engine. Now we can see an ungraceful gray border around those triangles. I haven't found a trick to get rid of it yet. On top of that, before Firefox 17, when people were complaining about how aliased those triangles looked, an additional trick was to set the border-style property to "dashed" instead of solid. Using firebug on the triangle generator, you can quickly see how it shows up now, and cry yourself to death. I hope a more brillant front-end dev than myself will find a fix for this and share it here. Thanks

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  • Is there a way to write System.Drawing.Graphics to PDF from C#?

    - by Brett Ryan
    I have a whole bunch of 2D graphics that is being used for both rendering controls on screen and used to print, it's pretty custom graphics that couldn't be done by any 3rd party reporting tools or off the shelf controls. The program can generate PDF files of the printed content but when I wrote it I cheated and just print the Graphics object to an in memory image and then embed that into the PDF page. Since the users are emailing the documents they're finding they are too large. I've started writing the PDF from scratch using iText, however is there a way to get System.Drawing.Graphics content directly into PDF? The way iText works and Graphics works is completely different.

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  • How to pass record id into hyperlink in radgrid?

    - by mongoose_za
    I've a radgrid and rendering a hyperlink column. I want to pass the id of the record into the url for the hyperlink. How can I do this? I have this <Columns> <telerik:GridTemplateColumn AllowFiltering="false" HeaderText="Edit" UniqueName="Edit"> <ItemTemplate> <asp:HyperLink ID="HyperLink1" runat="server" Target="_blank" NavigateUrl="~/Edit.aspx?Id=need_to_bind_id_here">Edit Details</asp:HyperLink> </ItemTemplate> </telerik:GridTemplateColumn> </Columns> There is an ID column which is generated too.

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  • apache tiles ordering problem

    - by ivar
    I have a problem with the order of rendering tiles. The menu gets rendered first and then the body of our webpage gets rendered. Each tile has it`s own controller that handles everything that tile needs to do. There are two forms. One in the menu and one in the body. Each one changes something in the menu and in the body. The problem is that if a form in the body changes something the menu gets rendered first and then the body controller handles form things and puts data to session, but menu is already done and the session was empty. I cant turn body and menu around becaouse there are other forms that work the other way around. How to deal with this problem? I do want every tile to have its own controller that deals with everything that tile does.

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  • ASP.net MVC: Getting a Partial View's HTML from inside of the controller

    - by Harry
    I have developed a simple mechanism for my mvc website to pull in html via jquery which then populates a specified div. All is well and it looks cool. My problem is that i'm now creating html markup inside of my controller (Which is very easy to do in VB.net btw) I'd rather not mix up the sepparation of concerns. Is it possible to use a custom 'MVC View User Control' to suit this need? Can I create an instance of a control, pass in the model data and render to html? It would then be a simple matter of rendering and passing back to the calling browser.

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  • Get a font filename based on Font Name and Style (Bold/Italic)

    - by Brad
    This has been driving me crazy all day. I need to get a font filename (eg. Arial.ttf) based off of it's name (Arial in this case). The problem is, I am only supplied with the font name (Arial) and weather it's bold, italic or both. Using those pieces of information, I need to find the font file so I can use it for rendering. Some more examples: Calibri, Bold would resolve to calibrib.ttf Calibri, Italic would resolve to calibrii.ttf Any ideas on how I could achieve this in C++ (Win32)

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  • SSRS default renderer strips html tags

    - by stackoverflowuser
    For TFS task work item, I copy a table from ms word 2003/2007 document and paste it into the description field (supports rich text). When the task item is saved, correct formatting is saved in TFS database table. But when the same data is displayed in a SSRs report (through report manager) the formatting is lost. Probably the ssrs rendering engine is stripping off the tags. I have the "HTML-Interpret HTML tags as styles" enabled for the report field. It will be of great help if someone can provide more information on this issue and how it can be handled. Thanks.

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  • IHTMLTxtRange.execCommand("Copy",false,null) fails due to IE settings

    - by srirambalaji-s
    We have a .Net application that is used for editing/rendering customized HTML documents. It is hosted in IE using the AxSHDocVw.AxWebBrowser controls. We proceed with navigating to "about:blank" page initially then we change the Document by writing our custom values into it. The problem we are facing is the call to IHTMLTxtRange.execCommand("Copy",false,null) is failing if we don't enable the IE Security Settings in the Internet Security zone (Scripting-Allow Programmatic Access to Clipboard ). In order to bypass the security setting ,I tried to point to a local html file initially while navigating. But this fails as soon as I modify the Document. I want to use the IHTMLTxtRange.execCommand("Copy",false,null) command so that I can customize our Copy/Paste operations. Is there any other way I can do this. Please share your ideas inorder to overcome this situation. Thanks. Sriram

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  • Find out why Xcode has decided to link to a particular library

    - by andygeers
    I'm using the Unity 3D engine to build an iPhone app, and when I go to generate my Xcode project for compilation, it includes a few fairly large libraries: Mono.Security.dll.s, System.dll.s, System.Core.dll.s, etc. I don't know if this question is really an Xcode question or a Unity question, but I'm trying to figure out why each of those libraries is being linked - which functions / classes are being referenced - ideally so that I can rewrite my code to remove as many of the dependencies as possible. Does anybody know a way to find this information out?

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  • Is there a way to catch assignments to or reads from an undefined property in the Spider-Monkey Java

    - by avri
    The Spider-Monkey JavaScript engine implements the noSuchMethod callback function for JavaScript Objects. This function is called whenever JavaScript tries to execute an undefined method of an Object. I would like to set a callback function to an Object that will be called whenever an undefined property in the Object is accessed or assigned to. I haven't found a noSuchProperty function implemented for JavaScript Objects and I am curios if there is any workaround that will achieve the same result.

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  • OpenGL: Implementing transformation matrix stack

    - by Jakub M.
    In a newer OpenGL there is no matrix stack. I am working on a simple display engine, and I am going to implement the transformation stack. What is a common strategy here? Should I build a push/pop stack, and use it with a tree representing my model? I suppose this is the "old" approach, that was deprecated in the newer OpenGL versions. Maybe then it is not the best solution (it was removed for some reason)

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