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  • Resetting a partial using RJS, and passing an instance variable?

    - by Elliot
    Hey guys here is my code (roughly): books.html.erb <% @books.each do |book| %> <% @bookid = book.id %> <div id="enter_stuff"> <%= render "input", :bookid => @bookid %> </div> <%end%> _input.html.erb <% @book = Book.find_by_id(@bookid) %> <strong>your book is: <%=h @book.name %></strong> create.rjs page.replace_html :enter_stuff, :partial => 'input2', :object => @bookid Only create.js doesn't seem to work though, if instead of passing the partial I passed "..." it does work, so I know its that there are instance variables in the partial that aren't being reset. Any ideas?

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  • How can I return JSON from node.js backend to frontend without reloading or re-rendering the page?

    - by poleapple
    I am working with node.js. I want to press a search button, make some rest api calls to another server in the backend and return the json back to the front end, and reload a div in the front end so that I won't have to refresh the page. Now I know I can reload just a div with jQuery or just Javascript dom manipulation. But how do I make it call a method on the server side? I could have a submit button and it will make a post request and I can catch it and make my api calls from there, however from the node.js side, when I return, I will have to render the page again. How do I go about returning JSON from the back end to the front end without re-rendering or refreshing my page? Thanks.

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  • Calling functions outside paths

    - by user1775718
    In mongojs, when you do: var birds = db.birds.find(searchTerm, callback); ...how do you pass arguments to the callback? I've tried bind, as in: birds = db.birds.find(searchTerm, app.get('getBirds').bind(res)); ...but to no avail. Just fyi I'm trying to pass the response object of the GET route so that the callback can render using res.send(results). The other option is to set app.set('res': res); and call app.get('res') from the callback - I'm not sure this is a good idea. It works, but it doesn't obey the events loop model too well - I think the request back to the app may be costly? Any help would be gratefully accepted. :)

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  • Redirect URL from AJAX Calls

    - by Vincent
    All, I have an application written in Zend MVC Framework. So, naturally all regular requests and ajax requests go through /public/index.php. I want my application to support maintenance mode. So, in my index.php file, I have the following code: if( Zend_Registry::get('config')->maintenance == 'true' ) { header('Location:/maintenance.php'); } The issue is, when ajax requests are called they render servermaintenance.php inside the page instead of redirecting to this page. How can I make sure it gets redirected instead of getting rendered? Thanks

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  • CURL alternative - Design ideas

    - by Vincent
    All, I am looking for some web application design ideas here. I have a server X that hosts an SDK, which has the capacity to talk a piece of hardware. When I make an HTTPS request from an external PHP web application (hosted on Server Y) to Server X through curl, Server X gives JSON data as a response. I use this data to render my UI for the web app on Server Y. The above method seems to be slow and has a tendency to fail in production if there are too many concurrent requests. Can anybody let me know if there is an alternative to CURL or any other design people are using to pull data like this from servers? Thanks

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  • Java data structure to use with Hibernate to store unknown number of parameters?

    - by Lunikon
    Following problem: I want to render a news stream of short messages based on localized texts. In various places of these messages I have to insert parameters to "customize" them. I guess you know what I mean ;) My question probably falls into the "Which is the best style to do it?" category: How would you store these parameters (they may be Strings and Numbers that need to be formatted according to Locale) in the database? I'm using Hibernate to do the ORM and I can think of the following solutions: build a combined String and save it as such (ugly and hard to maintain I think) do some kind of fancy normalization and and make every parameter a single row on the database (clean I guess, but a performance nightmare) Put the params into an Array, Map or other Java data structure and save it in binary format (probably causes a lot of overhead size-wise) I tend towards option #3 but I'm afraid that it might be to costly in terms of size in the database. What do you think?

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  • Perl CGI script to not wait for a subprocess to complete

    - by Tyug
    Is it possible to continue displaying a CGI script's HTML without waiting for a child process to complete, yet the child process should stay alive when the CGI script is complete. Here's what I have, -- Display HTML page # html page set up... so header/other stuff #the -c, -h are params are just params system("perl subprocess.pm -c params -h 1 &"); #actually print the html page setup ... For some weird reason, it waits for the subprocess to finish before it outputs the html page even though I included the asynchronous system call for linux. It doesn't render the page immediately. Is it possible to print the html page without waiting for the subprocess to finish?

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  • How to find why NSMutableData is invalid

    - by 4thSpace
    I access a RESTFUL url and get back results. The results are in JSON. I turn the response into a string via: - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSString *json = [[NSString alloc] initWithBytes:[self.receivedData mutableBytes] length:[self.receivedData length] encoding:NSUTF8StringEncoding]; The json variable has a value of 0x0. When I mouse over it, I see <Invalid CFStringRef. How can I debug this to tell why it is invalid? I render the JSON given back through the browser in A JSON parser. That checks out fine. Results are given back by entering an ID in the URL. Other IDs return results without issue. The result set is fairly large.

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  • How to color a mesh with values at the vertices in WPF 3D?

    - by Christo
    We've got a sphere which we want to display in 3D and color given a fuction that depends on spherical coordinates. The sphere was triangulated using a regular grid in (theta, phi), but this produced a lot of small triangles near the poles. In an attempt to reduce the number triangles at the poles, we've changed out mesh generation to produce more evenly sized triangles over the surface. The first triangulation method had the advantage that we could easily create a texture and drape it over the surface. It seems that in WPF it isn't possible to assign colors to vertices the way one would go about in OpenGL or Direct3D. With the second triangulation method it isn't apparent how to go about generating the texture and setting the texture coordinates, since the vertices aren't aligned to a grid anymore. Maybe it would be possible to create a linear texture containing a color for each vertex, but then how will that effect the coloring? Will it still render smoothly over the triangle surfaces as one would expect by applying per vertex coloring?

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  • Jquery convert integer to string and back

    - by Richbyte
    These are the logical steps which i need render with jquery: var x is a 2 digit number(integer) derived from an input.value(); If var x is not 33 or 44 Convert this 2 digit number to string; split the string in 2 parts as number; Add these 2 values; Return var x value as this value. Else Return var x value literally as 33 or 44 whatever is the case. Thanks!

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  • Google maps event problem with flex actionscript

    - by DEH
    I am able to render a google map on a flex canvas. I create the map using the code below and then place markers on it in the onMapReady method (not shown) var map:com.google.maps.Map=new com.google.maps.Map(); map.id="map"; map.key="bla bla"; _mapCanvas.addChild(map); map.addEventListener(MapEvent.MAP_READY,onMapReady); It all works fine. However, if I remove the map and then set _mapCanvas to null, then run exactly the same code again, the onMapReady event does not fire. It is weird, but once a map has been created and deleted, the onMapReady event never seems to fire again. Anyone got any ideas? Thanks.

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  • how many color combinations in a 24 bit image

    - by numerical25
    I am reading a book and I am not sure if its a mistake or I am misunderstanding the quote. It reads... Nowadays every PC you can buy has hardware that can render images with at least 16.7 million individual colors. Rather than have an array with thousands of color entries, the images instead contain explicit color values for each pixel. A 24-bit display, of course, uses 24 bits, or 3 bytes per pixel, for color information. This gives 1 byte, or 256 distinct values each, for red, green, and blue. This is generally called true color, because 256^3 (16.7 million) He says 1 byte is equal to 256 distinct values. 1 byte = 8 bits. 8^2 bits = 64 distinct colors right ?? It's not adding up right to me. I know it might be something simple to understand, but I don't understand.

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  • how many color combinations in a 24 bit image

    - by numerical25
    I am reading a book and I am not sure if its a mistake or I am misunderstanding the quote. It reads... Nowadays every PC you can buy has hardware that can render images with at least 16.7 million individual colors. Rather than have an array with thousands of color entries, the images instead contain explicit color values for each pixel. A 24-bit display, of course, uses 24 bits, or 3 bytes per pixel, for color information. This gives 1 byte, or 256 distinct values each, for red, green, and blue. This is generally called true color, because 256^3 (16.7 million) He says 1 byte is equal to 256 distinct values. 1 byte = 8 bits. 8^2 bits = 64 combinations of colors right ?? It's not adding up right to me. I know it might be something simple to understand, but I don't understand.

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  • Controller not accepting params value but the same value hard coded is accepted

    - by Numbers
    Rails.logger.info(params[:question]) => {"title"=>"katt"} @question_list.questions.create(params[:question]) => ActiveModel::ForbiddenAttributesError (ActiveModel::ForbiddenAttributesError) @question_list.questions.create("title"=>"katt") # SUCCES! I cannot understand why Rails not accepts the params when the exact same value written by hand works fine? Update controller: def new_question @question_list.questions.create(params[:question]) render nothing: true end private def set_question_list @question_list = QuestionList.find(params[:id]) end def question_list_params params.require(:question_list).permit(questions_attributes: [:id, :question_list_id, :title, :position, :_destroy]) end view: <%= form_for @question_list, url: new_question_question_list_path, remote: true do |f| %> <%= f.text_field :title %> <%= f.submit %> <% end %>

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  • How to get the width of the whole text of the widget in WPF?

    - by macias
    Remarks Before I ask, let me focus on words: the length of "i" is 1 the length of "w" is 1 the render width of "w" is greater than "i" (except for monospace font) -- I am interested in this and from now on, I would simply write "width" The problem (small picture) Let's say I have incredible long text set for TextBlock widget which width is 100. And the text does not fit (the text is clipped -- i.e. only small portion of text is visible). The question is -- what is the width of the entire text (visible + not visible parts)? The background (big picture) I have a window width DataGrid (WPF standard) as main widget which contains text. I try to resize window and DataGrid in such way, that all texts will be visible without need of resizing and/or scrolling. I focus on width. The size of the window vs. size of the screen is not an issue, the text is so short that it would fit even on netbook screen.

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  • Custom ListView Row, can no longer select rows...

    - by LDK
    Here's my ScrollView: middle: SC.ScrollView.design({ layout: { top: 36, bottom: 32, left: 0, right: 0 }, backgroundColor: '#ccc', contentView: SC.ListView.design({ contentBinding: 'Spanish.wordsController.arrangedObjects', selectionBinding: 'Spanish.wordsController.selection', contentValueKey: "word", contentDisplayProperties: 'word english'.w(), selectOnMouseDown: YES, exampleView: Spanish.CustomListItemView }) }) and here is my custom listView row: Spanish.CustomListItemView = SC.View.extend({ render: function(context, firstTime){ var content = this.get('content'); var word = content.get('word'); var english = content.get('english'); context = context.begin().push('&nbsp;%@ (%@)'.fmt(word,english)).end(); return sc_super(); } }); The above works as expected, except that I can no longer select views. When I comment out "exampleView: Spanish.CustomListItemView" I can select rows, but they are no longer formatted properly. Why can I no longer select rows when I use exampleView?

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  • Javascript/Iframe in Static FBML

    - by Loveleen Kaur
    Is there any way the following script be embedded in Static FBML <script src="http://widgets.twimg.com/j/2/widget.js"></script> <script> new TWTR.Widget({ version: 2, type: 'profile', rpp: 4, interval: 6000, width: 250, height: 300, theme: { shell: { background: '#333333', color: '#ffffff' }, tweets: { background: '#000000', color: '#ffffff', links: '#4aed05' } }, features: { scrollbar: false, loop: false, live: false, hashtags: true, timestamp: true, avatars: false, behavior: 'all' } }).render().setUser('twitter').start(); </script> I have tried following code in the Static FBML but it doesnt seem to work <fb:iframe scrolling='no' frameborder='0' marginheight='0' src='http://www.demo.kaazunut.com/twitter-box.html' height='500' width='500'></fb:iframe>

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  • Does anyone know of a way to easily convert a PDF to a docx format programmatically

    - by Rob
    We have a couple 3rd party systems that give us PDFs. We would like to convert those PDFs for display on the web without using an Adobe product. Ideally we would like to use Silverlight to render the PDFs but are having trouble converting from a PDF to Xaml or using docx format as a middle man. There are lots of libraries that give PDFs but that is not what we need. If there is a library out there that does this, a .net lib would be preferable but we can run the conversion using the command line as well if that is an option.

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  • Dynamically update Font Size of application with a single trigger in WPF

    - by Sukan
    I have an application which has different font sizes for different controls say Button: 10, TextBlock : 12 etc. I want to give options to the user where he can select any one of the below say Normal , Small, Big, Bigger. Suppose one selects "small" I would want to decrease every distinct font size by 2. If "Big", I would want to increase every font size by 2. I hope we can do this using converter sending actual font size as parameter and render as per the selected choice if I am not wrong. What will be the best option. Sorry if my doubt is absurd or silly. Thank you.

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  • Drupal Webforms module - Form results say "Array" instead of form values

    - by Doc Falken
    I have a simple form built with the Webforms module in Drupal. The standard textfield form fields work perfectly. However if I use the preset date or time form values, they don't get emailed properly when the form is submitted. For instance, if there was a date field in my form, it would submit fine and render on the results page just fine, but if I wanted that value to be included in an email, it would show up as "Array" within the text of the email instead of showing the date. There is an open support issue within the module issues page, but I'm hoping for any additional help.

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  • Is there a way to undo Mocha stubbing of any_instance?

    - by Steve Weet
    Within my controller specs I am stubbing out valid? for some routing tests, (based on Ryan Bates nifty_scaffold) as follows :- it "create action should render new template when model is invalid" do Company.any_instance.stubs(:valid?).returns(false) post :create response.should render_template(:new) end This is fine when I test the controllers in isolation. I also have the following in my model spec it "is valid with valid attributes" do @company.should be_valid end Again this works fine when tested in isolation. The problem comes if I run spec for both models and controllers. The model test always fails as the valid? method has been stubbed out. Is there a way for me to remove the stubbing of any_instance when the controller test is torn down. I have got around the problem by running the tests in reverse alphabetic sequence to ensure the model tests run before the controllers but I really don't like my tests being sequence dependant.

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  • GAE datastore - count records between one minute ago and two minutes ago?

    - by Arthur Wulf White
    I am using GAE datastore with python and I want to count and display the number of records between two recent dates. for examples, how many records exist with a time signature between two minutes ago and three minutes ago in the datastore. Thank you. #!/usr/bin/env python import wsgiref.handlers from google.appengine.ext import db from google.appengine.ext import webapp from google.appengine.ext.webapp import template from datetime import datetime class Voice(db.Model): when = db.DateTimeProperty(auto_now_add=True) class MyHandler(webapp.RequestHandler): def get(self): voices = db.GqlQuery( 'SELECT * FROM Voice ' 'ORDER BY when DESC') values = { 'voices': voices } self.response.out.write(template.render('main.html', values)) def post(self): voice = Voice() voice.put() self.redirect('/') self.response.out.write('posted!') def main(): app = webapp.WSGIApplication([ (r'.*', MyHandler)], debug=True) wsgiref.handlers.CGIHandler().run(app) if __name__ == "__main__": main()

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  • Inheriting System.Windows.Controls.Panel

    - by modosansreves
    I use the Panel to provide custom layout of UIElements. For this, I override MeasureOverride and ArrangeOverride. In ArrangeOverride proper locations are given to Children. In my application, there is a bunch of rather heavy (by number of visuals) children inside the panel, but only 2 of them are located inside the visible region at a time. Working with my application I feel like all the visuals are drown. I need to introduce a kind of 'virtualization' and make the children render (or take CPU cycles) selectively. How do I?

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  • (Ogre3D) Using a 3D texture slice as a 2D texture input.

    - by ~mech
    Hello, I am trying to do something with Ogre using 3D textures. I would like to update a 3D-texture by going through it slice-by-slice and recalculating the color values. However, in each step I also need to access the previous slice somehow to read the values. Setting up a slice as a render target is easy, but is it possible to feed such a slice as a 2D-texture input to a shader, or do I need to explicitly copy it into a separate 2D texture? Thanks.

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  • Creating a virtual, data-driven section of a Wordpress-powered site

    - by lgomez
    Hello all, I want to create a plugin for wordpress to automatically serve pages containing data pulled from a provider's API. The API returns one or more records containing data for that record and I simply want to have the plugin intercept the request, call the API with parameters pulled from the request URI and display the data using a template that I can either let them upload to the server or let them copy and paste into the plugins admin settings. For example, I may want one of my wordpress installations to show products pulled from such an API under the url "example.com/products". The plugin would catch that request, extract the variables from the URL, call the API and render the template with the returned results. I'd like to avoid requiring editing the .htaccess file like some caching plugins do. Some of the admins of these pages won't know how to do that or simply won't have access to the .htaccess file. Thanks!

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