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  • Obtaining ActiveRecords if NOT nil

    - by user275729
    I would like to be able to gather all records in a table where the user_id is not null. This is what I have but it doesn't seem to be working (even though I've had it working in a seperate project): named_scope :all_registered, :conditions => ["user_id != ?", nil]

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  • Validate number of nested attributes

    - by Damien MATHIEU
    Hello, I have a model with nested attributes : class Foo < ActiveRecord::Base has_many :bar accepts_nested_attributes_for :bar end It works fine. However I'd want to be sure that for every Foo, I have at least two Bar. I can't access the bar_attributes in my validations so it seems I can't validate it. Is there any clean way to do so ?

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  • Association with Searchlogic

    - by fivetwentysix
    Hi I have a post model that :has_many :reply, when using searchlogic, doing Post.reply_content_like("search"), returns a result for every reply under that post, I only want it to return once. Anyone know a way to solve this

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  • double accepts_nested_attributes_for

    - by sfusion
    does anyone know if it is possible to do a double nested form for. so that i could upload images to a set from an article form. e.g. Article has_many :image_sets ImageSet belongs_to :article has_many :images Image belongs_to :image_set

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  • Help with active record relations

    - by Christian Fazzini
    class CreateActivities < ActiveRecord::Migration def self.up create_table :activities do |t| t.references :user t.references :media t.integer :artist_id t.string :type t.timestamps end end def self.down drop_table :activities end end class Fan < Activity belongs_to :user, :counter_cache => true end class Activity < ActiveRecord::Base belongs_to :user belongs_to :media belongs_to :artist, :class_name => 'User', :foreign_key => 'artist_id' end class User < ActiveRecord::Base has_many :activities has_many :fans end I tried changing my activity model too, without any success: class Activity < ActiveRecord::Base has_many :activities, :class_name => 'User', :foreign_key => 'user_id' has_many :activities, :class_name => 'User', :foreign_key => 'artist_id' end One thing to note. Activity is an STI. Fan inherits from Activity. In console, I do: # Create a fan object. User is a fan of himself fan = Fan.new => #<Fan id: nil, user_id: nil, media_id: nil, artist_id: nil, type: "Fan", comment: nil, created_at: nil, updated_at: nil> # Assign a user object fan.user = User.first => #<User id: 1, genre_id: 1, country_id: 1, .... # Assign an artist object fan.artist_id = User.first.id => 1 # Save the fan object fan.save! => true Activity.last => #<Fan id: 13, user_id: 1, media_id: nil, artist_id: 1, type: "Fan", comment: nil, created_at: "2010-12-30 08:41:25", updated_at: "2010-12-30 08:41:25"> Activity.last.user => #<User id: 1, genre_id: 1, country_id: 1, ..... But... Activity.last.artist => nil Why is Activity.last.artist returning nil?

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  • odd validation error messages with authlogic

    - by peter
    i have an issue where when validation fails, i get messages like "{{count}} errors prohibited this {{model}} from being saved" and "{{attribute}} {{message}}". it looks like something isn't getting expanded correctly. i've tried adding validates_* stuff but it doesn't seem to help. i've also tried to search the web for an answer but when i add the '{{' and '}}' i get no results. what am i missing? how can i fix this? thanks, -peter

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  • Newbie question attribute from associated table not showing up in index view

    - by Lauren
    Hi I know this is something simple I am doing wrong. I have three tables, installation, neighborhood, schools Installation: has_many :schools has_many :neighborhoods Neighborhood: has_many :installations has_many :schools Schools: belongs_to :installations belongs_to :neighborhoods I can't figure out how to show the name of the neighborhood the school is located in on the index view. I can get it to show on the show view once I have the school id. But on the index view I can't figure out what to put in the controller that will allow me to access the neighborhood name from the neighborhood_id that is in the School model. I am sure this is so easy and I am screwing up something stupid. HELP!

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  • How to add a has_many association on all models

    - by joshsz
    Right now I have an initializer that does this: ActiveRecord::Base.send :has_many, :notes, :as => :notable ActiveRecord::Base.send :accepts_nested_attributes_for, :notes It builds the association just fine, except when I load a view that uses it, the second load gives me: can't dup NilClass from: /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2184:in `dup' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2184:in `scoped_methods' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2188:in `current_scoped_methods' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2171:in `scoped?' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2439:in `send' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2439:in `initialize' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/reflection.rb:162:in `new' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/reflection.rb:162:in `build_association' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations/association_collection.rb:423:in `build_record' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations/association_collection.rb:102:in `build' (my app)/controllers/manifests_controller.rb:21:in `show' Any ideas? Am I doing this the wrong way? Interestingly if I move the association onto just the model I'm working with at the moment, I don't get this error. I figure I must be building the global association incorrectly.

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  • How to build a builder dynamically with escaped values

    - by dorelal
    Now I know how to build xml without escaping values. http://stackoverflow.com/questions/2693036/how-to-tell-bulider-to-not-to-escape-values However I need to build tags dynamically. Desired result <bank_info>Chase</bank_info> What I have is attr = 'bank_info' builder = Builder::XmlMarkup.new builder.attr { |x| x << 'bank_info' } # does not work I can try making the whole thing as a giant string and eval that. But evaling is not that safe. Is there a better option that I am missing.

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  • How do I deactivate a specific version of gem?

    - by JayX
    Currently I have two versions of rack installed on my computer 1.0.1 and 1.2.1 However, when I tried to push my git to Heroku, it complains You have already activated rack 1.0.1, but your Gemfile requires rack 1.2.1. Consider using bundle exec. (Gem::LoadError) How can I deactivate rack 1.0.1 and activate 1.2.1 instead? (I can't uninstall 1.0.1 since it's under system folder and I don't have the root password)

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  • Setting many key/value pairs

    - by Andrew
    Hi, I'm working on a rake task which imports from a JSON feed into an ActiveRecord called Person. Person has quite a few attributes and rather than write lines of code for setting each attribute I'm trying different methods. The closest I've got is shown below. This works nicely as far as outputing to screen but when I check the values have actually been set on the ActiveRecord itself it's always nil. So it looks like I can't use .to_sym to solve my problem? Any suggestions? I should also mention that I'm just starting out with Ruby, have been doing quite a bit of Objective-c and now need to embrace the Interwebs :) http = Net::HTTP.new(url.host, url.port) http.read_timeout = 30 json = http.get(url.to_s).body parsed = JSON.parse(json) if parsed.has_key? 'code' updatePerson = Person.find_or_initialize_by_code(parsed['code']) puts updatePerson.code parsed.each do |key, value| puts "#{key} is #{value}" symkey = key.to_sym updatePerson[:symkey] = value.to_s updatePerson.save puts "#{key}....." # shows the current key puts updatePerson[:symkey] # shows the correct value puts updatePerson.first_name # a sample key, it's returning nil end

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  • Rendering a different controller and action while keeping errors

    - by DerNalia
    I have a form in one controller(A) that renders a partial from another controller(B), and stays on A's edit page during editing / updating etc. However... When the partial form form controller B has an error, the error doesn't show up on A's edit page right now, if there is an error, I am doing (in controller B's update method) redirect_to :controller => "A", :action => "edit" and then this is built in... but I don't know what to do with it... the error needs to be sent to controller A... but.. it doesn't format.xml { render :xml => @varFromB.errors, :status => :unprocessable_entity } thanks

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  • Tell me how to use ActiveRecord#after_add

    - by Small Wolf
    Hey,Guys! Now I hava a problem,how can I make the callback#after_add receive a reference to the join model in a has_many :through association? my code like this: class Emergency has_many :departments, :through => :eme_references, :after_add => Proc.new { |eme_reference| eme_reference.eme_flag = 1} end the attribute eme_flag is the model EmeReference's attribute! but in the block ,i get the eme_reference.class is Emergency. I want to set the attribute eme_flag of the model EmeReference. That is my question! cheers!

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  • Tell me how to use ActiveRecord#afeter_add

    - by Small Wolf
    Hey,Guys! Now I hava a problem,how can I make the callback#after_add receive a reference to the join model in a has_many :through association? my code like this: class Emergency has_many :departments, :through => :eme_references, :source => :email, :after_add => Proc.new { |eme_reference| eme_reference.eme_flag = 1} end the attribute eme_flag is the model EmeReference's attribute! but in the block ,i get the eme_reference.class is Emergency. I want to set the attribute eme_flag of the model EmeReference. That is my question! cheers!

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  • Filtering Questions (posts) by tag_name in TagController#index passing /tags?tag_name=something

    - by bgadoci
    I am trying to get my TagsController#index action to display only the Questions that contain certain tags when passing the search parameter tag_name. I am not getting an error just can't get the filter to work correctly such that upon receiving the /tags?tag_name=something url, only those questions are displayed . Here is the setup: class Tag < ActiveRecord::Base belongs_to :question def self.search(str) return [] if str.blank? cond_text = str.split.map{|w| "tag_name LIKE ? "}.join(" OR ") cond_values = str.split.map{|w| "%#{w}%"} all(:order => "created_at DESC", :conditions => (str ? [cond_text, *cond_values] : [])) end end and class Question < ActiveRecord::Base has_many :tags, :dependent => :destroy end tag link that would send the URL to the TagsController looks like this: <%= link_to(tag_name, tags_path(:tag_name => tag_name)) %> and outputs: /tags?tag_name=something In my /views/tags/index.html.erb view I am calling the questions by rendering a partial /views/questions/_question.html.erb. <%= render :partial => @questions %> When I send the URL with the search parameter nothing happens. Here is my TagsController#index action: def index @tags = Tag.search(params[:search]).paginate :page => params[:page], :per_page => 5 @tagsearch = Tag.search(params[:search]) @tag_counts = Tag.count(:group => :tag_name, :order => 'count_all DESC', :limit => 100) @questions = Question.all( :order => 'created_at DESC', :limit => 50) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @tags } end end How can I properly filter questions displayed in the /views/tags/index.html.erb file for the parameter tag.tag_name?

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  • Need help to format the result page after searching

    - by kshama
    Hi, I have built a small text based search engine on ROR which will display relevant records having a specified search word in it.since few of the records has more than 1000 words i have truncated each result set to 200 characters.My views file search.html.erb looks like this <% @results_with_ranks.each do |result| -%> <% content_id = rtable.find(result[0]).content_id %> <% content= Content.find(content_id) %> <%= truncate content.body, :length => 200 %><br/> <p> Record id <%= content.id %></p> <hr style="color:blue"> <% end -%> I want to provide an option so that whenever any truncated record is selected its entire body has to be displayed. I also want to paginate the result page displaying some fixed number of records per page.Can any body help me in doing this? Thanks in advance.

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  • tinymce in ajax call - how to get contents

    - by haries
    this is what I have in my view: <% form_remote_tag :url => { :controller => 'comments', :action => "create", :post_id => "#{@post.id}"}, :html => {:id => 'comment_form' }, :before => "tinyMCE.triggerSave(true,true);" do %> <%= label_tag 'Comment' %><br/> <%= text_area_tag :comment_body, nil,:rows => 10, :cols => 100 %><br/> <p style="margin-top: 10px;"> <%= submit_tag 'Add',:id => 'btnCommentSave' %> </p> <% end %> Tinymce editor is displayed properly. In my controller: how to get the contents of the text area? I am expecting the contents in params[:comment_body] and I am not seeing it? I tried doing this also, $('#btnCommentSave').click( function(){ tinyMCE.triggerSave(true,true); $('#comment_form').submit(); }); What am I missing? Thanks

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  • Problem with heroku db:pull while at work.

    - by shopfiber
    When I try to pull down a database while at work I get the following error: :>heroku db:pull Auto-detected local database: sqlite://db/development.sqlite3 Bad credentials given for http://heroku:[hidden]@taps.heroku.com Note that when I am at home I am able to run this command just fine. I wanted to know if you have any suggestions for common reasons I would get this error.

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  • Howto: Access a second related model in a nested attribute builder block

    - by Joe Cairns
    I have a basic has_many through relationship: class Foo < ActiveRecord::Base has_many :bars, :dependent => :destroy has_many :wtfs :through => :bars accepts_nested_attributes_for :bars, :wtfs end On my crud forms I have a builder block for the wtf, but I need the label to come from the bar (an attribute called label for instance). What's the proper method to do this? Here's the most simple scaffold: <h1>New foo</h1> <% form_for(@foo) do |f| %> <%= f.error_messages %> <p> <%= f.label :name %><br /> <%= f.text_field :name %> </p> <h2>Bars</h2> <% f.fields_for :wtfs do |builder| %> <%= builder.hidden_field :bar_id %> <p> <%= builder.text_field :wtf_data_i_need_to_set %> </p> <% end %> <p> <%= f.submit 'Create' %> </p> <% end %> <%= link_to 'Back', foos_path %>

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  • Passing direct parameters to a Controller#method when testing via RSpec

    - by gmile
    Normally to pass parameters via in RSpec we do: params[:my_key] = my_value get :my_method Where my_method deals with what it received from params. But in my controller I have a method, which takes args directly i.e.: def my_method(*args) ... end How do I call the method with those args from within the test? I've tried get :my_method(args) but Ruby interpreter complains about syntax error.

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  • how to model editing of multiple related resources on the same webpage?

    - by amikazmi
    Lets say we have a Company model, that has many Employees And has many Projects If we want to show the projects, we'll go to "/company/1/projects/index" If we want to edit 1 project, we'll go to "/company/1/projects/1/edit" What if we want to edit all the projects at once on the same webpage? We can go to "/company/1/edit" and put a nested forms for all the projects But what if we need a different webpage to edit all the employees at once too? We can't use "/company/1/edit" again.. Right now we do "/company/1/projects/multiedit", "/company/1/projects/multupdate"- but as you can see, it's not rest. How can we model this restfully?

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  • Match an element of an array to a different element in that array

    - by Anh
    I have an array containing several students. I want them to cross-grade one another randomly, i.e. each student will grade someone and will be graded by someone else (these two people may or may not be the same person). Here is my working solution. I'm sure there is a more elegant answer! def randomize(student_array) graders = student_array.dup gradees = student_array.dup result = {} graders.each do |grader| gradee = grader while gradee == grader gradee = gradees.sample end result[grader] = gradee gradees.delete_at(gradees.index(gradee)) end return result end

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  • How can I rename by CarrierWave file versions?

    - by AKWF
    Upon the uploading of an image in my application, 4 different sizes are created and saved using CarrierWaves version functionality. However, I am converting all of these versions to JPEG. The source file that is uploaded remains unchanged. So I can upload a TIFF file, and CarrierWave will create :large, :medium, :small, and :thumb versions. My problem is that these files all still end in .tif. Yet they are indeed JPEG files, as I've verified this with the file command. How can I write the filenames correctly for each version, and ensure that CarrierWave will report each version's name correctly?

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