search for: counter_caches

I am a bit confused about counter_cache here. The API docs http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html say that only the belongs_to association can take the :counter_cache option. When I try to use it on a has_many I get an "unknown key(s): counter_cache" error. Why would this be the case? belongs_to means that this model has a field with an id

Hi there, the acts_as_tree API says that I can set a counter cache and that it will automatically increment the "children_count" column. I did that but when I create a new page it asks for a "pages_count" column instead. Here is the relevant part of page.rb model: class Page < ActiveRecord::Base acts_as_tree :order => :position, :counter_cache => true

Hi List, I''m new to and hot on RoR. And I have a question regarding acts_as_tree and counter_cache. What methods actually update the counter_cache column? I''ve only really started the app so i''ve just got it set up so that I can select the parent node (from a list of nodes that exclude all descendants of the current node) with a radio buttoned list named and valued

I have a model that I''ve been indexing and searching with ferret with no problems. I just added a counter_cache for some voting functionality to the same model and now when I perform the voting fxn on an object from that model, I get the FileNotFound error as it looks for a file named "_1c_1.del" ...which breaks my voting function. I tried killing the server and my index

Hi list, I''ve got some counter_caches in a model. When these get incremented - say on a page view - my updated_on column also gets updated. How can I conditionally not update updated_on if just these counter_cache columns change? The problem with that is that I am using acts_as_versioned which clones the record each time updated_on ch...

Hi, I have the following code: Message, belongs_to :topic, :counter_cache => true topic = Topic.find_from_permalink(params[:id]) topic.messages.create(params[:message]) When the message gets created, then AR issues a supplemental SELECT to retrieve the message''s topic and then updates its messages_count. Why is that happening? If I do it manually: if

I''m trying to use counter_cache, but I''m not doing something right. It is unreliable and I keep having to correct it manually. Is there a good tutorial or reference on how to use it on-line? I have the AWDR book, but I need something more complete. TIA, Jeffrey

Before I file a ticket, I''ll query ya''ll about this: The API docs for acts_as_tree''s counter_cache is to create a database column called "children_count" to hold the counter_cache. I have enabled this option in my model. While writing tests I wrote a test for creating children from the a parent: message = @forum_message["parent"].find child =

Hey everybody, Rails currently offers ''belongs_to :counter_cache'', which is a very basic replacement for count triggers: ":counter_cache - caches the number of belonging objects on the associate class through use of increment_counter and decrement_counter. The counter cache is incremented when an object of this class is created and decremented when it?s destroyed. This

Hello world... I have an interesting issue that the online docs aren''t helping me with. In my app I have 4 models Item < ActiveRecord Deal < Item Product < Item Category < ActiveRecord Item has_and_belongs_to_many :categories... On each category record I''d like to maintain a product_count and deal_count to increase performance. This doesn''t appear

Hi All, I''m using a counter_cache, which I believe I''m doing correctly because I can see this SQL query being executed in the development.log file: UPDATE gifts SET bookmarks_count = bookmarks_count + 1 WHERE (id = 276) However, in the gifts table, the bookmarks_count field isn''t incremented (it''s zero). If I literally copy and paste that query into the

I''m trying to figure out how to use counter_cache. I''ve got Clients that have many Profiles. And I got things working so that when I add a new Profile, the profiles_count gets updated. profile = client.profiles.new(params[:profile]) profile.save However, I''m stuck trying to figure out how to deal with UPDATING a profile (moving it to a different Client). If I change

Hi, I was thinking of doing this with a stored procedure, but I thought it could be better implemented in Rails. I have several tables that hold a counter cache for other tables, which aren''t directly related. For example: Table ''schools'' has records that belong_to table ''counties'', and that table has records that belong_to table

Hi I'm using those 2 models: class Topic < ActiveRecord::Base has_many :articles, :order => :rank end class Article < ActiveRecord::Base belongs_to :topic, :counter_cache => true end The "counter_cache" column in the "topics" table does increase when adding a new article, but it does not update when updating article's topic or when deleting the

As far as I can tell, the counter_cache option on a belongs_to model doesn''t actually save anything in the database. For example, I have the following models: class Parent < ActiveRecord::Base has_many :children, :conditions => "deleted_at IS NULL" end class Child < ActiveRecord::Base belongs_to :parent, :counter_cache => true end With the following

Hi everyone, Does anybody know who is responsible for updating *_count columns (via :counter_cache) when creating the db and loading fixtures? In my case, the *_count elements remain zero! Thanks, Omid --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send

What are the limitations on using: errors.add_to_base to display errors in views? I have tried for days to add errors from my object.rb and they never get displayed. class Keyword < ActiveRecord::Base validates_presence_of(:name, :message => "Name is required.") validates_uniqueness_of(:name, :message => "This name is already in use. Please try

Hi, I''m trying to use counter caching in a tree structure (in this case Bob Silva''s threaded list). This is the definition: class Folder < ActiveRecord::Base acts_as_threaded has_many :files end I would like each parent to have the total count of all the childrens member. So when inserting a new file I update the file_count following the parent_id through all the

I have two model classes: class Item < ActiveRecord::Base belongs_to :channel, :counter_cache => true validates_presence_of :channel end class Channel < ActiveRecord::Base has_many :items, :dependent => true end In the Channel controller I have variable channel.items, an Array of Items. I would like to use the Array find method. However, channel.items.find() is a Rails

Hi, I''ve been googling and searching the forums for some time but can''t seem to find exactly what I''m looking for. Suppose User HABTM Products (for example a favorites list). I would like to construct a single query for finding Products ordered by the number of Users that have flagged them as favorites. Although I can construct the query using SQL a with a