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  • has_one | nested attributes -

    - by user283179
    How would I show one of many nested objects in the index view class Album < ActiveRecord::Base has_many: photos accepts_nested_attributes_for :photos, :reject_if => proc { |a| a.all? { |k, v| v.blank?} } has_one: cover accepts_nested_attributes_for :cover end class Album Controller < ApplicationController layout "mini" def index @albums = Album.find(:all, :include => [:cover,]).reverse respond_to do |format| format.html # index.html.erb format.xml { render :xml => @albums } end end This is what I have so fare. I just want to show a cover for each album. Any info on this would be a massive help!!

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  • Multi-line regex support in Vim

    - by Daniel
    I notice the standard regex syntax for matching across multiple lines is to use /s, like so: This is\nsome text /This.*text/s This works in Perl for instance but doesn't seem to be supported in Vim. Instead, I have to be much more specific: /This[^\r\n]*[\r\n]*text/ I can't find any reason for why this should be, so I'm thinking I probably just missed the relevant bits in the vim help. Can anyone confirm this behaviour one way or the other?

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  • maven-archetype-webapp eclipse problem

    - by Bruce
    Hi all, I'm trying to create a very simple webapp with maven and eclipse, but I'm having no joy at all, in fact the reverse of joy. I go to File - New Project, select Maven Project, and select the maven-archetype-webapp. When I finish the wizard, a webapp structure gets generated but with no 'java' directory under main, just resources and webapp. So I right click on main and select new Class. The class gets created under resources (?!), and furthermore, there seems to be no compilation of it by java. I can make stupid errors and no syntax highlighting comes up. It's like java isn't recognizing it. Alternatively I have tried creating a new 'java' directory under main where it should be, but still with the same non-existent java symptoms. What gives? This is driving me insane.. Thanks all!

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  • Count files in directories AND subdirectories? iPhone

    - by AWright4911
    I am trying to count entire files in a directory, including subdirectories. This is what I have to count files in the first folder: -(NSString *)numberOfPhotos { NSString *MyPath = @"/rootdirectory/"; NSArray *directoryContent = [[NSFileManager defaultManager] directoryContentsAtPath:MyPath]; return [NSString stringWithFormat:@"%d", [directoryContent count]]; } I was thinking maybe something like for (file in folder){ [file count] { but doesnt seem to work.

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  • Get interface constant name using its value

    - by Ravisha
    This might not have a major usecase in projects ,but i was just trying a POC kind of project where in i get the key code,and using its value i want to print the key name on screen so i want to relive myself off writing switch cases ,so thinking of going by reflection. Is there a way to get the constant integer of interface's name using its value?

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  • Getting a visitors Facebook page

    - by Mr Carl
    Hey guys, this is more of a question out of curiosity, but is it possible to get somebody's Facebook page after they have visited your site? Was thinking maybe a chain of lookup stuff could be used starting with an IP to eventually perhaps get a name and thus that person's Facebook page. I have also heard you can read somebody's web history, is this true?

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  • Sprite to Line Collision

    - by Alu
    If I have a sprite, how would I check collision between two points? For example, in a game I am making, I would like to draw multiple lines that my sprite collides against. I'm thinking that this is more flexible than other collision systems if I had a lot of platforms.

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  • Swapping data binding in code

    - by Phil J Pearson
    I have two data-bound text boxes. One is bound to a string and the other to a number. The 'default' binding is set in XAML. Under some circumstances I need to reverse the bindings at runtime (the string is usually a prefix but sometimes it's a suffix). I have the following code in my view model, called when the window is loaded: Binding stringBinding = BindingOperations.GetBinding(view.seqLeft, TextBox.TextProperty); Binding numberBinding = BindingOperations.GetBinding(view.seqRight, TextBox.TextProperty); view.seqLeft.SetBinding(TextBlock.TextProperty, numberBinding); view.seqRight.SetBinding(TextBlock.TextProperty, stringBinding); After that the code loads the properties to which the binding refers. The problem is that the 'new' binding doesn't seem to work. What have I missed? Is there a better way?

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  • Is there a naming convention for a method that should set the properties of the passed object.

    - by Genady Sergeev
    Hello, I am writing a method that will set the properties of an object passed as a parameter. The method accepts one parameter of type interface and the return type of the method is the same interface. I was wondering if there is some kind of a naming convention for such methods. I was thinking of something like: FillInInterfaceTypeData or InitInterfaceTypeData but both sound clumsy to me. How do you think?

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  • What was your first programming job?

    - by Allyn
    What was your first full time programming job? What did you do? What did you learn? Did you enjoy it? How long did you stay? Sorry for all the sub-questions, but lately I've been thinking about what I'm going to do when I get my degree, and I am interested to know your opinions and experiences.

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  • Pre-Compiled Header Design Question

    - by ML
    Hi All, I have code that uses a pre-compiled header. (previously done by someone else) In it, they are including several .h files. If I have classes that use common .h files that are not currently in the existing pre-compiled header, would tossing them in there be of any real benefit? Maybe compilation speed, but I was thinking it would clean up the classes/headers a bit too? What are do's and don't with pre-compiled headers?

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  • CSRF protection and cross site form access

    - by fl00r
    Hi. I aw working on cross site authentication (some domains have got common authentication). So I want to send authentication data (login, password) to main domain from others. How should I use protect_from_forgery and how can I check if data received from valid domain? What I am thinking now is to turn off protect_from_forgery for session controller and check domain name of received data. But maybe I can configure CSRF protection for not only one domain?

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  • Does deleting a branch in git remove it from the history?

    - by Ken Liu
    Coming from svn, just starting to become familiar with git. When a branch is deleted in git, is it removed from the history? In svn, you can easily recover a branch by reverting the delete operation (reverse merge). Like all deletes in svn, the branch is never really deleted, it's just removed from the current tree. If the branch is actually deleted from the history in git, what happens to the changes that were merged from that branch? Are they retained?

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  • Hudson Free Temp Space location

    - by Kevin
    Hi I have just installed Hudson on a Weblogic server and I am having issues with the nodes going off line due to the Free Temp Space falling below the 1gig threshold. Now I have checked my /tmp folder (thinking Hudson uses that) but it is sitting at 10gigs free. Would anybody be able to point me to the folder Hudson uses? Also I am using a SunOS box. Thanks,

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  • Preparation of preloaded user data

    - by Dave
    How do you all actually go about doing that? Currently what we will do is send the excel file to users they will fill in the info and we will use excel concatenation to generate the corresponding SQL scripts I kist thinking if there is any better way

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  • Incongruity between Eclipse Outline/Package perspective and source code being displayed - Java error generated at runtime

    - by David Daedalus
    I've been debugging a Java application and have encountered something odd. When a particular method is called, Java throws a ClassNotFoundException. Unfortunately, the methods in question (the invoking and the 'missing' one) are inside a JAR file for which I have no documentation or source. To get at the source, I used JD-GUI (a Java JAR reverse engineer-er) and the JD plugin for Eclipse. As far as I can tell, the class in question exists inside the JAR file. This because JD-GUI displays it inside the JAR, and from within Eclipse I can see it listed along with the constructors and methods. My question is why the source being displayed in Eclipse is for a different class (that also exists)? This program was built with Ant - is it possible the problem lies there? Screenshot below for your viewing pleasure - and thanks in advance for your help!

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  • JQuery Tabs: How to get a list of the tab titles

    - by user340254
    As the title suggest, my question is what is the best way to get or build a list of the titles for the set of tabs. I was thinking I would have to build the list in a for loop, but there does not appear to be any 'name' or 'title' property where you could do something like this: var $tabs = $('contentContainer').tabs(); $tabs.tabs( 'title', index );

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  • 3d model viewer in Flash or Java

    - by Magnetic_dud
    I want to show a box in 3d on my website, and I was thinking to do it in Flash. How I can show a 3d model? I need something very simple, it's a textured cube, no interaction required, just let the user pan and zoom. There is a 3ds viewer in flash or something like that? Java is also ok (but flash is preferred)

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  • Squid server - multiple originservers with different domains

    - by jduncan
    I have 2 squid servers load-balanced with F5 LTMs set up as a reverse proxy. My problem: origin server A hosts domains 1, 2, and 3 origin server B hosts domains 4 and 5. how can I set up squid so that it will cache all vhosts for both servers? my current config: cache_peer serverA parent 80 0 round-robin no-query originserver login=PASS If I add a second line: cache_peer serverB parent 80 0 round-robin no-query originserver login=PASS it only caches domains on serverB, requests for serverA content generate 404 errors. I don't use squid a whole lot, and all help is appreciated. thanks.

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  • How can I prevent ListBox from selecting an item when I right-click it?

    - by chaiguy
    The tricky part is that each item has a ContextMenu that I still want to open when it is right-clicked (I just don't want it selecting it). In fact, if it makes things any easier, I don't want any automatic selection at all, so if there's some way I can disable it entirely that would be just fine. I'm thinking of just switching to an ItemsControl actually, so long as I can get virtualization and scrolling to work with it.

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  • Standalone jQuery "touch" method?

    - by dclowd9901
    So, I'm looking to implement the ability for a plugin I wrote to read a touch "swipe" from a touch-capable internet device, like an iPhone, iPad or android. Is there anything out there? I'm not looking for something as full as jQtouch, though was considering reverse engineering the code I would need out of it. Any suggestions on the best way to approach this? A snippet of code already available? Addendum: I realize in hindsight the solution won't strictly be jQuery, as I'm pretty sure there aren't any built-in methods to handle this. I would expect standard Javascript to find itself in the answer.

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  • What .gitignore I should use with QT projects? (QT Creator)

    - by Envek
    So, after little thinking I have wrote the following: # In repository we don't need to have: # Compiled object files *.o # Generated MOC, resource and UI files moc_*.cpp qrc_*.cpp ui_*.h # Built windows .exe and linux binaries # NOTE: PROJECT is a your project's name, analog of PROJECT.exe in Linux *.exe *.dll PROJECT # Windows-specific files Thumbs.db desktop.ini # Editors temporary files *~ # Debug and Release directories (created under Windows, not Linux) Debug/ Release/ Please ask, what needs to be added or fixed (especially for Windows - I haven't one under hand now. And Mac too [haven't work in it at all]). I want to keep my repository clear :-)

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  • Emulating a "OR" condition in Datastore.

    - by Jelle
    Hello again, I'm using the Google App Engine with Python (Django). How to emulate "SELECT * FROM bla WHERE touser = common.userstats("key") OR fromuser = common.userstats("key") ORDER BY date ASC"? I was thinking of something like this, but I can't get it in the order I want. recievedlist = models.P1.all() recievedlist.filter("touser =", common.userstats("key")) plus1list = recievedlist.fetch(50) sendlist = models.P1.all() sendlist.filter("fromuser =", common.userstats("key")) plus1list += sendlist.fetch(50) # order plus1list

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