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  • What is wrong with my logic in a rails hash?

    - by stevenheidel
    I have a setting in environment/production.rb of HEROKU = true This should change my has_attachment has to use s3 instead of the file system, but it doesn't. What's wrong with my logic? has_attachment :content_type => :image, :storage => ($HEROKU ? :s3 : :file_system), ... Thanks!

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  • Rails 3 Order By Count on has_many :through

    - by goo
    I have an application where I can list Items and add tags to each Item. The models Items and Tags are associated like this: class Item < ActiveRecord::Base has_many :taggings has_many :tags, :through => :taggings end class Tagging < ActiveRecord::Base belongs_to :item belongs_to :tag end class Tag < ActiveRecord::Base has_many :taggings has_many :items, :through => :taggings end So, this many-to-many relationship allows me to set n tags for each Item, and the same tag can be used several times. I'd like to list all tags ordered by the number of items associated with this tag. More used tags, shows first. Less used, last. How can I do that? Regards.

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  • With paperclip, how can I change the image location to a ":parent_model_id/:id" folder format?

    - by Jamis Charles
    Given that I have a Listing model that has many images and each image has one attachment, how can I have the listing_id be part of the folder structure? Like so: system/photos/[listing_id]/:id I know that using :id will output the id of the image record. Here's what I currently have: class Image < ActiveRecord::Base belongs_to :listing #Rails ActiveRecord Relation. An image belongs to a post. # paperclip data has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :url => "/public/system/:class/:attachment/:id/:style_:filename" end

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  • How do I put logic in a View a scope or method in a Model?

    - by Angela
    I have the following in the view: <% unless contact_email.statuses.empty?%> (<%= contact_email.statuses.find(:last).status%>) <% end %> contact_email is an instance of a specific model. Could I do something like this? class ContactEmail < ActiveRecord::Base attr_accessible :contact_id, :email_id, :status, :subject, :body, :date_created, :date_sent def status unless contact_email.statuses.empty? contact_email.statuses.find(:last).status end end end is there a better way to do this? is there a way to use the || operator for a default if empty? Basically, I would like to be able to do the following in the View: <%= contact_email.status = IF there is a value, then display it, if not, show nothing.

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  • On saving a new record an associated id changes to 9 figure number

    - by Dave
    Hi, I have a table of venues, with each venue belonging to an area and a type. I recently dropped the table and added to it some addressline fields. I have re-migrated it but now the area_id field saves as a random? 9 figure number. Both the area_id and venuetype_id integers are created in the same way from the create new form and the venuetype_id saves as normal but not the area_id. Can anyone offer any help? whats shown in the console => [#<Venue id: 4, name: "sdf", addressline1: "", addressline2: "", addressline3 : "", addressline4: "", icontoppx: 234, iconleftpx: 234, area_id: 946717224, ven uetype_id: 8, created_at: "2011-03-17", updated_at: "2011-03-17 23:33:53">] irb(main):030:0> the area_id should be 8 in the above example. The area and venuetype id's are slected from dropdown boxes on the new venue form. new form <%= form_for @venue do |f| %> <p>name: <br> <%= f.text_field :name %></p> <p>top: <br> <%= f.text_field :icontoppx %></p> <p>left: <br> <%= f.text_field :iconleftpx %></p> <p>addressline1: <br> <%= f.text_field :addressline1 %></p> <p>addressline2: <br> <%= f.text_field :addressline2 %></p> <p>addressline3: <br> <%= f.text_field :addressline3 %></p> <p>addressline4: <br> <%= f.text_field :addressline4 %></p> <p>area: <br> <%= f.collection_select(:area_id, Area.all, :id, :name) %></p> <p>venuetype: <br> <%= f.collection_select(:venuetype_id, Venuetype.all, :id, :name) %></p> <br><br> <div class="button"><%= submit_tag %></div> <% end %> Areas table class CreateAreas < ActiveRecord::Migration def self.up create_table :areas do |t| t.string :name t.timestamps end end def self.down drop_table :areas end end Thanks very much for any help!

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  • How to show specific link to user that's signed in and on specific page in rails?

    - by sevens
    I have the following code for part of my navigation: <% if user_signed_in? %> <li><%= link_to 'Edit Profile', edit_profile_path(current_user.profile) %></li> <li><%= link_to 'Edit Account', edit_user_registration_path %></li> <% elsif user_signed_in? and params[:controller] == 'profiles#edit' %> <li><%= link_to 'View Profile', profile_path(current_user.profile) %></li> <li><%= link_to 'Edit Account', edit_user_registration_path %></li> <% else %> <li><%= link_to 'Sign up', new_user_registration_path %></li> <% end %> I want different links to show depending on where the "user_signed_in" is. However, my <% elsif user_signed_in? and params[:controller] == 'profiles#edit' %> doesn't seem to be working. What am I doing wrong?

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  • auto_complete plugin error: Couldn't find Question with ID=auto_complete_for_...

    - by bgadoci
    I have successfully set up this plugin before so I am curious as to what I am doing wrong here. I have built the ability for users to add tags to questions. I am not using tagging plugin here but that shouldn't matter for this. With respect to the auto complete, I am trying to have the form located in the /views/questions/show.html.erb file access the Tags table and display entries in the tags.tags_name column. When I begin to type in the field I get the following error message: Processing QuestionsController#show (for 127.0.0.1 at 2010-05-31 15:22:20) [GET] Parameters: {"tag"=>{"tag_name"=>"a"}, "id"=>"auto_complete_for_tag_tag_name"} Question Load (0.1ms) SELECT * FROM "questions" WHERE ("questions"."id" = 0) ActiveRecord::RecordNotFound (Couldn't find Question with ID=auto_complete_for_tag_tag_name): app/controllers/application_controller.rb:15:in `init_data' For some reason I am actually passing the field name as the Question.id. The plugin set up is fairly simple as you add the following line to your controller: auto_complete_for :tag, :tag_name and the following line in your routes.rb file: map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get } I have added the controller line to both my tags and questions controller and also mapped resources for both tags and questions in my routes.rb file: map.resources :tags, :collection => {:auto_complete_for_tag_tag_name => :get } map.resources :questions, :collection => {:auto_complete_for_tag_tag_name => :get } I have played around with removing either or of the above but can't seem to fix it. Any ideas what I am doing wrong here? UPDATE: My QuestionsController#show action is fishing posts by: @question = Question.find(params[:id])

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  • Paperclip generating wrong URLs in Heroku

    - by Tony
    Paperclip is generating wrong URLs in Heroku. I have an Audio model which has a mp3 field as follows: class Audio < ActiveRecord::Base has_attached_file :mp3, :storage => :s3, :s3_credentials => S3_CREDENTIALS, :bucket => S3_CREDENTIALS[:bucket], :path => ":rails_root/public/system/:attachment/:id/:style/:filename", :url => "/system/:attachment/:id/:style/:filename" I am calling audio.mp3.url from a controller, and it returns http://s3.amazonaws.com/MyApp/audios/mp3s//original/96a9ae89302fdf8462ee05eb829f2e17578b144e20120908-2-11f61zr.mp3?1347135050 instead of http://s3.amazonaws.com/MyApp/audios/mp3s/000/000/004/original/96a9ae89302fdf8462ee05eb829f2e17578b144e20120908-2-11f61zr.mp3?1347135050 (which works) Why is it missing the '000/000/004' part of the route? The same model is generating the right URL when used in a view. Any help? I am using paperclip 3.2.0 and Rails 3.1.8. Any help?

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  • Removing “duplicate objects” with same attributes using Array.map

    - by keruilin
    As you can see in the current code below, I am finding the duplicate based on the attribute recordable_id. What I need to do is find the duplicate based on four matching attributes: user_id, recordable_type, hero_type, recordable_id. How must I modify the code? heroes = User.heroes for hero in heroes hero_statuses = hero.hero_statuses seen = [] hero_statuses.sort! {|a,b| a.created_at <=> b.created_at } # sort by created_at hero_statuses.each do |hero_status| if seen.map(&:recordable_id).include? hero_status.recordable_id # check if the id has been seen already hero_status.revoke else seen << hero_status # if not, add it to the seen array end end end

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  • remove field name from object validation message

    - by Colin G
    I've got a simple active record validation on an object using this within a form: form.error_messages({:message => '', :header_message => ''}) This in turn outputs something like "FieldName My Custom message" What i need to do is remove the field name from the error message but leave my custom message. Can anyone point me in the right direction for this.

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  • Sinatra as backend (API) for Rails app or padrino or any hybrid solution?

    - by JVK
    Is it a good idea to build backend APIs in Sinatra for Rails app. Or is it better to use Padrino? I want to have my backend provides API as service, so that anytime, if I have to develop same app for any client, I can use that back-end API (web services). What is the best approach? My goal is to expose back-end as web services and even rails uses it for webapp. What are the disadvantages or advantage of different approaches?

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  • Comparing an array of users to an array of structs with user object as attribute, and returning matc

    - by keruilin
    I have an array of users who are friends. Let us call this array: friends I then have an array of structs. Each struct has a user object as an attribute (it also has a rank attribute). Here's what the struct class looks like, to add some context: class Leader < Struct.new(:rank, :user); end Let us call this array of structs: all_leaders_plus_rank I want to compare friends and all_leaders_plus_rank, and add the match from all_leaders_plus_rank to a new array of structs called friendly_leaders.

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  • Rails nil can't be coerced into Float

    - by alex
    After adding items, attempting to view my cart leads me to this error: nil can't be coerced into Float with the math line in this method in my line_item model highlighted: def total_price product.price * quantity end line items create action def create product = Product.find(params[:product_id]) @line_item = @cart.add_product(product.id) @line_item.quantity = params[:quantity] view <div id= "text_field"><%= text_field_tag 'quantity' %> </div> <%= button_to 'Add to Cart', line_items_path(:product_id => product) %> This has held me back for a couple days. (I'm new). Thanks.

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  • RoR live-search (text_field_with_auto_complete) submit.

    - by looneygrc
    I have a "Movies" and a "Actors" table and "Casts" as join-model. To be more specific "Casts" has movie_id, actor_id and rolename. I want in "Movies" form to add a live search to search through actors and a "rolename" text_field and save those to "Casts". I don't know if text_field_with_auto_complete is the right choice but i prefer not to use much javascript because i am not familiar with it. I've been searching all over the internet to find something similar to this without any result. I've manage to get it working with "@actors.each do" but it makes a very long list.

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  • Nested form child only updates if parent changes.

    - by chap
    In this video (10 sec) you can see that the nested attribute is only updated if it's parent model is changed. Using rails 3.0.0.beta and full project is on github. Summary of models and form: class Project < ActiveRecord::Base has_many :tasks accepts_nested_attributes_for :tasks end class Task < ActiveRecord::Base belongs_to :project has_many :assignments accepts_nested_attributes_for :assignments end class Assignment < ActiveRecord::Base belongs_to :task end form_for(@project) do |f| Project: f.text_field :name f.fields_for :tasks do |task_form| Task: task_form.text_field :name task_form.fields_for :assignments do |assignment_form| Assignment: assignment_form.text_field :name end end f.submit end

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  • Multithreaded ActiveRecord requests in rspec

    - by jeem
    I'm trying to recreate a race condition in a test, so I can try out some solutions. I find that in the threads I create in my test, ActiveRecord always returns 0 for counts and nil for finds. For example, with 3 rows in the table "foos": it "whatever" do puts Foo.count 5.times do Thread.new do puts Foo.count end end end will print 3 0 0 0 0 0 test.log shows the expected query, the expected 6 times: SELECT count(*) AS count_all FROM `active_agents` Any idea what's going on here?

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  • Are there any Simple and Clean Methods to implement Maps (Google or otherwise) in RoR 3?

    - by Port3M5
    I'm looking into building a group work app for my final year project next year. One of the core parts is organising group meetings. I plan to make this as powerful as possible and adding a map can help get rid of excuses such as "I didn't know where it was". I have been unable to find any simple solutions to embed maps into my Rails apps so far. An important issue is I need Rails 3 Compatibility. What are your suggestions? Gems, plugins or even something totally different?

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  • Dynamic class_name for has_many relations

    - by vooD
    I'm trying to make has_many relation with dynamic class_name attribute class Category < ActiveRecord::Base has_many :ads, :class_name => ( lambda { return self.item_type } ) end or class Category < ActiveRecord::Base has_many :ads, :class_name => self.item_type end But i got errors: can't convert Proc into String or undefined method `item_type' for #<Class:0xb62c6c88> Thank you for any help!

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  • Rails - Rendering a Partial without having to use "_" in front of the filename?

    - by bluedevil2k
    How do I render a partial without having to supply the "_" in front of the file name? Is there a parameter I can call to not use it? This problem popped up using RABL and Backbone - using RABL requires me to have a file in my views like "index.json.rabl". But, when I use embed the JSON right on the page load (as is usual with Backbone), I'm required to call the file "index.json.rabl". These 2 files are the exact same thing, just required to have different names. I'm looking to use just 1 file, "index.json.rabl" and force the render() function to look for that file name, without the "".

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  • Modifying an inherited Rails association

    - by Chris Kilmer
    I have a Team class that inherits from a Group class. Both Team and Groups have memberships through the same association. However, I need to run a method after a Team memberships is added but not a Group. I currently have something like this: class Group < ActiveRecord::Base has_many :memberships, :class_name => 'Connection', :foreign_key => 'connectable_id', :as => :connectable, :dependent => :destroy end class Team < Group has_many :memberships, :class_name => 'Connection', :foreign_key => 'connectable_id', :as => :connectable, :dependent => :destroy, :after_add => :add_company_membership private def membership_check(membership) end end Is there some way to modify the inherited association in Team so that I don't have to redefine the entire thing but rather just add the :after_add hook it? Any help would be appreciated.

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