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  • How do I add a condition to all ActiveRecords Queries for a particular model?

    - by Kyle West
    I am using the sentient_user gem to have access to the current_user object in my application. I want to override the default ActiveRecordBase queries to scope them to the current user. For instance, I don't want my users looking at, deleting, modifying other user's orders. I feel like I should be able to override a single (or couple) ActiveRecordBase methods to accomplish this, but I don't know which or how. Thanks in advance.

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  • Rails: Ajax: Changes Onload

    - by Jay Godse
    Hi. I have a web layout of a for that looks something like this <html> <head> </head> <body> <div id="posts"> <div id="post1" class="post" > <!--stuff 1--> </div> <div id="post2" class="post" > <!--stuff 1--> </div> <!-- 96 more posts --> <div id="post99" class="post" > <!--stuff 1--> </div> </div> </body> </html> I would like to be able to load and render the page with a blank , and then have a function called when the page is loaded which goes in and load up the posts and updates the page dynamically. In Rails, I tried using "link_to_remote" to update with all of the elements. I also tweaked the posts controller to render the collection of posts if it was an ajax request (request.xhr?). It worked fine and very fast. However the update of the blank div is triggered by clicking the link. I would like the same action to happen when the page is loaded so that I don't have to put in a link. Is there a Rails Ajax helper or RJS function or something in Rails that I could use to trigger the loading of the "posts" after the page has loaded and rendered (without the posts)? (If putsch comes to shove, I will just copy the generated JS code from the link_to_remote call and have it called from the onload handler on the body).

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  • Heroku taps push weirdness...

    - by holden
    I have the strangest experience using taps to move data between my machine and heroku. It works fine except that it seems to loose 0s directly behind the decimal place for my geo coordinates. Ie 50.0519322 for some reason gets set to 50.519322... no idea why. When I pull the data from the remote location ie. heroku db:pull... it works fine, all decimal places intact on my machine, however, when i push it back to the remote server it loses these zeros. Especially directly behind the decimal place, though I haven't noticed it elsewhere yet. At first I was storing the lat and lng as simply numeric but refined it to: change_column :places, :lat, :numeric, :precision => 15, :scale => 10 change_column :places, :lng, :numeric, :precision => 15, :scale => 10 With no result, any ideas what's going on? From the console on the remote server i get the lat as being: #<BigDecimal:2aebcc5967c0,'0.50519322E2',18(18)> and my machine as: #<BigDecimal:10232f7c8,'0.50519322E2',12(16)> which is also odd, the second one because it shows up as 50.0519322 when i edit it thru my view but when i do to_f via console it gives me 50.519322

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  • How to the view count of a question in momery?

    - by Freewind
    My website is like stackoverflow, there are many questions. I want to record how many times a question has been visited. I have a column called "view_count" in the question table to save it. When a user visited a question many times, the view_count should be increased only 1. So I have to record which user has visited which question, and I think it is too much expensive to save them in the database, because the records will be huge. So I want to keep them in the memory, and persistent the number to database every 10 minutes. I have searched about "cache" of rails, but I haven't found an example. I need an simple sample of how to do this, thanks for help~

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  • if_attribute on declarative authorization. STUCK FOR DAYS!!!

    - by Victor Martins
    I can't seem to find a solution for this problem :s I have a many to many relationship like this: A user has_many organizations through affiliations and vice versa. I'm using declarative organizations and I only want a user to edit a particular organization if he is affiliated and the affiliationtype attribute of affiliation is a particular value. So affiliations has 3 columns , user_id, organization_id and affiliationtype_id I can do: o = Organization.find(:first) o.affiliatons[0].user and get the user now I wish to do this: has_permission_on [:organizations], :to => :edit do if_attribute (...) end That if_attribute should see if the current user is the organization.affiliation[?].user and if the organization.affiliation[?].affiliationtype_id = "3" I hope this is syntax issue ... I really need to get this working. Thanks in advance.

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  • Good way to handle inline-edit form using Rails and jQuery

    - by Tim Sullivan
    I have a list of items, being displayed in a series of DIVs. When someone clicks on an "edit" link, I want to replace the div with a form that will let them edit the contents of that item in a nice way. I'm trying to think of the ideal way to handle this. Do I create a hidden edit form for every item in the list, and hook the edit link to reveal it, like this: <div> <a href="#">edit</a> Item One <div id="edit_1202" class="editform">Edit form goes here</div> </div> <div> <a href="#">edit</a> Item Two <div id="edit_2318" class="editform">Edit form goes here</div> </div> Or is there a better way to fetch the data and insert the form's HTML into the right spot? Remember, I'm using jQuery, so I can't use the prototype helpers. Thanks!

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  • I'm using a sequence in Factory Girl to get unique values but I'm getting validation errors

    - by Sean Seefried
    I have a model defined this way class Lga < ActiveRecord::Base validates_uniqueness_of :code validates_presence_of :name end I've defined a factory for Lgas with Factory.sequence(:lga_id) { |n| n + 10000 } Factory.define :lga do |l| id = Factory.next :lga_id l.code "lga_#{id}" l.name "LGA #{id}" end However, when I run Factory.create(:lga) Factory.create(:lga) in script/console I get >> Factory.create(:lga) => #<Lga id: 2, code: "lga_10001", name: "LGA 10001", created_at: "2010-03-18 23:55:29", updated_at: "2010-03-18 23:55:29"> >> Factory.create(:lga) ActiveRecord::RecordInvalid: Validation failed: Code has already been taken

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  • Setting a cookie before Javascript Redirection

    - by Jason
    Hello, I have a Rails app where I set a set a session variable the moment a user lands on my site with the referer and the page they hit. Additionally, I have Google Optimizer sending traffic from my homepage to various landing pages. The problem is that I think Google Optimizer is sending users away before the cookie is set. Is that even possible? I believe that the cookie is set from the HTTP Header, which must have fully loaded before Google's Javascript has even loaded. Thanks, Jason

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  • rails, mysql charsets & encoding: binary

    - by Benjamin Vetter
    Hi, i've a rails app that runs using utf-8. It uses a mysql database, all tables with mysql's default charset and collation (i.e. latin1). Therefore the latin1 tables contain utf-8 data. Sure, that's not nice, but i'm not really interested in it. Everything works fine, because the connection encoding is latin1 as well and therefore mysql does not convert between charsets. Only one problem: i need a utf-8 fulltext index for one table: mysql> show create table autocompletephrases; ... AUTO_INCREMENT=310095 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci But: I don't want to convert between charsets in my rails app. Therefore I would like to know if i could just set config/database.yml production: adapter: mysql >>>> encoding: binary ... which just calls SET NAMES 'binary' when connecting to mySQL. It looks like it works for my case, because i guess it forces mysql to -not- convert between charsets (mySQL docs). Does anyone knows about problems about doing this? Any side-effects? Or do you have any other suggestions? But i'd like to avoid converting my whole database to utf-8. Many Thanks! Benjamin

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  • vlad the deployer: why do I need a scm folder?

    - by egarcia
    I'm learning to use vlad the deployer and I've got a question. Since I'm still learning I don't know what is pertinent to the question and what isn't, so please bear with me if I'm a little verbose. I've got 2 environments for a new application (test and production) besides my development machine. I've figured out this way to do the initial setup in my vlad.rake: namespace :test task :set set :domain, 'test.myserver.com' end end namespace :production task :set set :domain, 'www.myserver.com' end end This way I can have environment-specific stuff inside the namespaces, and still have shared tasks. For example, this would be the initial setup for test: rake vlad:test:set vlad:setup vlad:update This creates the following folders on my test server: releases/ scm/ shared/ current -> symlink to last release (inside the releases folder) My question is: what's the point of the scm folder? Every time I do vlad:update, the following happens: svn checkout on the scm/ folder above svn export on the /releases/{date} folder update current symlink So scm is a copy of my repository... but then there's an "export" copy of the repository on /releases/{date}. And that is the one used by the application... scm doesn't seem to be used by anyone? Wouldn't I be just fine without the scm folder?

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  • Paperclip - Stream not recognized by identify command

    - by user117046
    I'm getting a paperclip error every time that I upload an image: [paperclip] An error was received while processing: #<Paperclip::NotIdentifiedByImageMagickError: /tmp/stream20100531-1921-uvlewk-0 is not recognized by the 'identify' command.> I'm running: Ubuntu 10.04, Imagemagick 6.5.1-0 (via apt-get), Paperclip 3.2.1.1 My path to identify is 'usr/bin/identify' and have confirmed Imagemagick works via command line I've tried putting adding the path to the options, but to no avail. I've tried: Paperclip.options[:command_path] = "usr/bin" or Paperclip.options.merge!(:command_path => "/usr/bin") in environment.rb or config/initializers/paperclip.rb. Though it makes no rational sense, I also tried "usr/local/bin" since this is the default for most people. Any thoughts on getting around this? Thanks!

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  • How to perform bulk update using rails admin

    - by Shubham Kedia
    ![enter image description here][2] I just have to perform a Bulk update for my products using the action which i have defined. While inspecting the link, it displays the following: onclick="jQuery('#bulk_action').val('bulk_add_to_categories'); jQuery('#bulk_form').submit(); return false;" But when I click on it I get this error. I need to do something like this I need to have an separate UI for all the products that have came from that bulk action, and then put them into the selected categories, but I am not able to do that. Can anyone help me on this? Any help would be great. I have seen lot of tutorial and read the rails admin github page but I was not able to find anything helpful. Please guide me.

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  • Google Maps API with Rails 3.0

    - by JZ
    I'm wondering if anyone out there has worked with Google Maps API with Rails 3. I'm looking for launching ideas, gems, plugins etc. I played around with ym4r-gm plugin for several hours today, with not much luck. Have you played with this API on rails 3 yet? Thanks in advance!

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  • jQuery RJS inserting string vs dom.

    - by Dmitriy Likhten
    So I am trying to use jQuery to insert data from an ajax call. I actually use the jquery.form plugin, and have the ajax form submitted with a dataType: 'script'. The response is a jquery expression which contains a <%= javascript_escape(render ...) %> erb tag (similar to what the railscasts episode 136 instructs to do). However the end result is that the full text of the render is inserted as if that was the content to be inserted into the page, as text, not as dom elements. Could the fact that the render had some newlines at the beginning be the cause? Dom text: "\n \n &lt;li>....&lt;/li>" I also tried having jQuery just read the response as a script and execute it, and used the prototype-based rjs stuff, same effect, the text is inserted into the dom. Are there any reasons why such a behavior would be experienced? A bit of clarification: My response.js.erb is jQuery("#content").append("<%= escape_javascript(render(:partial => "widgets")) %>"); jQuery("#information").text("Finally, something happened!"); The full text inside the append() call is inserted as text into #content.

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  • Is it easy to switch from relational to non-relational databases with Rails?

    - by Tam
    Good day, I have been using Rails/Mysql for the past while but I have been hearing about Cassandra, MongoDB, CouchDB and other document-store DB/Non-relational databases. I'm planning to explore them later as they might be better alternative for scalability. I'm planning to start an application soon. Will it make a different with Rails design if I move from relational to non-relational database? I know Rails migrations are database-agnostic but wasn't sure if moving to non-relational will make difference with design or not.

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  • Rails polymorphic associations, two assoc types in one class

    - by snitko
    Consider a class: class Link < ActiveRecord::Base has_many :link_votes, :as => :vote_subject, :class_name => 'Vote' has_many :spam_votes, :as => :vote_subject, :class_name => 'Vote' end The problem is, when I'm adding a new vote with @link.link_votes << Vote.new the vote_subject_type is 'Link', while I wish it could be 'link_votes' or something like that. Is this an AR limitation or is there a way to workaround this thing? I've actually found one related answer, but I'm not quite sure about what it says: http://stackoverflow.com/questions/1168047/polymorphic-association-with-multiple-associations-on-the-same-model/1764117#1764117

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  • Appending HTML to end of body using javascript

    - by ming yeow
    here is the deal. i have several templates for faceboxes (lightbox) i need at different points of the application. these are stored in different partials and files. i will initialize different javascript functions in accordance to which ones i need. The question is, what is the best way to append the external HTML page into my body using javascript?

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  • How to render partial.js in rails 3

    - by julian-mann
    Using rails3 - I have a project with many tasks. I want to use javascript to build the UI for each task. I figured I could display those tasks on the projects show page by rendering a javascript partial for each. I can't get 'tasks/show' to see tasks/show.js.erb Any ideas? In projects/show.html.erb <div id="tasks"> <%= render(:partial => "tasks/show", :collection => @project.tasks) %> </div> tasks/show.js.erb $("tasks").append(new TaskWidget(task.id)) I get the errors ActionView::MissingTemplate in Projects#show Missing partial tasks/show with {:handlers=>[:erb, :rjs, :builder, :rhtml, :rxml], :formats=>[:html], :locale=>[:en, :en]} in view paths .... around line #13 Thanks

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  • Button_to uses POST Link_to uses GET, why? ROR

    - by JZ
    I've ran into a ror problem using the link_to. Why does my link to use the GET method and my button_to use the POST method, after I specified my "method"="post" within the link_to parameters? View: <%= button_to "pdf", :action => 'getquote' %> <%= link_to 'pdf', {:controller => 'inventories', :action => 'getquote', :method => :post } %> Controller Method: def getquote @cart = find_cart respond_to do |format| format.pdf end end Terminal Output (Button/Link, respectively): Processing InventoriesController#getquote (for 127.0.0.1 at 2010-01-30 01:38:02) [POST] Parameters: {"action"=>"getquote", "authenticity_token"=>"D2cwnHyTHgomdUM3wXBBXlOe4NQLmv1Srn0paLbExpQ=", "controller"=>"inventories"} Processing InventoriesController#show (for 127.0.0.1 at 2010-01-30 01:39:07) [GET] Parameters: {"method"=>"post", "action"=>"show", "id"=>"getquote", "controller"=>"inventories"}

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  • How to change color of HAML tags in NetBeans?

    - by Andrei Karpenko
    I use Aloha theme in NetBeans 6.8, everything looks cool except these blue tags in HAML files, which are unreadable. How to find a place where this blue color could be changed? P.S. I use that HAML plugin which seems to be unsupported and lacks features Screenshot: http://img.leprosorium.com/846904 (sorry, new users can't embed images)

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  • Form is submitting when the page loads

    - by RailAddict
    I have a really simple Rails app. Basically an article with comments. I want the article page to show the article, comments underneath and then a textbox to write a comment and a submit button to submit it. I got it all working except for one (big) problem. When the page loads.. example.com/article/1 a blank comment is submitted to the database. I fixed that by including "validates_presence_of :body" in the Comment model. But that results in the following image when the page loads: This is my code by the way: def show @place = Article.find(params[:id]) @comment = Article.find(params[:id]).comments.create(params[:comment]) respond_to do |format| format.html # show.html.erb format.xml { render :xml => @article } end end and <% form_for([@article, @comment]) do |f| %> <p> <%= f.label :commenter %><br /> <%= f.text_field :commenter %> </p> <p> <%= f.label :body %><br /> <%= f.text_area :body %> </p> <p> <%= f.submit "Create" %> </p> <% end %>

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  • Mocking Sort With Mocha

    - by josephmate
    How can I mock an array's sort expect a lambda expression? This is a trivial example of my problem: # initializing the data l = lambda { |a,b| a <=> b } array = [ 1, 2, 3, 4, 5 ] sorted_array = [ 2, 3, 8, 9, 1] # I expect that sort will be called using the lambda as a parameter array.expects(:sort).with( l ).returns( sorted_array ) # perform the sort using the lambda expression temp = array.sort{|a,b| l.call(a,b) } Now, at first I expected that this would work; however, I got the following error: - expected exactly once, not yet invoked: [ 1, 2, 3, 4, 5 ].sort(#<Proc:0xb665eb48>) Is there a way to do what I am looking for? Cheers, Joseph

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