similar to: Updating Attributes in a HABTM Join Table

I have successfully used HABTM to create a many-to-one-to-many set of rows in one step. Now, if two objects I want to associate already exist, how do I create the join row? The Agile book mentions the ''push_with_attributes'' method. The text says this method is useful for adding additional attributes to the join row (in the example a ''read_at'' timestamp). I

Hey gang, How does STI work with HABTM? For instance...let''s say I have the following models ----- Category < ActiveRecord::Base Item < ActiveRecord::Base Product < Item Deal < Item ----- Each product or deal can have categories. Would I then setup Item with has_and_belongs_to_many :categories, then create a table categories_items ??? Is there a better way to do it?

Briefly, I want to create an :insert_sql attribute for a has_and_belongs_to_many relationship, and then add items to that relationship using push_with_attributes. Is that possible? Less briefly: I have a legacy postgresql database where one of the join tables has an ID column, so I had to set up the association with a custom :finder_sql attribute, as follows: class Topic <

This has me scratching my head: a Person has many Things a Person has many Collections a Collection has many Things ...Things in a Collection are ordered ...Things in a Collection can be related to (created by) any User ...a collection has additional attributes, such as a name etc I am confused about habtm in rails (especially when using acts_as_habtm_list) vs. going the :through route.

We have tables Users and Communities linked by has_an_belongs_to_many. The join table Communities_Users has additional fields [ is_active, is_blocked, join_date] etc. These are populated using @user.push_with_attributes(:is_active => true,...). Later on how do we update or retrieve the attributes in the link table for a given user or a community with doing it explicitly using SQL? Thanks,

Hello *Gem* experts, Sorry for asking multiple questions in one post but they are both related to one problem. So far I have the following code: class Member < ActiveRecord::Base has_and_belongs_to_many :blogs, :uniq=>true ..... end class Blog < ActiveRecord::Base has_and_belongs_to_many :members, :uniq=>true ... end The issue is that

All, I had been working on a project that was using STI to a very high degree. It also was using a HABTM table that had a couple extra attributes. It seems that with 1.1 push_with_attributes is deprecated and I am having a bit of trouble moving things to using has_many :through The original schema I had worked like this : create_table "nodes" do |t| t.column "title",

Hello All, I am new to ROR, and can''t seem to get HABTM to cooperate entirely... however I might be abusing it! Before I try a different strategy I thought I''d ask here and see if I''m missing something simple. So say Projects and Companies are related. Projects can have multiple Companies, and Companies can be on multiple Projects. But, the same Company can also

I''m having an error from Linux via freeTDS/ODBC to SQL Server with cod that runs fine against SQLite and MySQL. Here''s the code: def find_recipes_for_workorder_by_id @recipe_pages, @recipes = paginate_with_sort :recipes, :per_page => 10, \ :conditions => ["recipe.workorder_id = ?", params [:workorder]] render :template =>

Hi - I am trying to use eager associations to cut down on database queries. I have a feeds table, an items table, a categories table, and a categories_items table. feeds have items, and items have many categories (and categories can be assigned to many items), thus the categories_items table which is a many-many join table. I do @feed = Feed.find(1) which works fine, but now I want to use

Hi Chris, Yesterday you kindly submitted an answer to my question on modelling many to many relationships. I''ve briefly tried the proposed solution but so far with no luck. Before I get too involved - I''d like to know if mapping three way :join_tables is "legal" in a Rails sense. I only ask since you put (untested) in your mail and I can''t find any docs on

I''ve got a left join problem of some sort connecting from linux FreeTDS/ODBC to SQL Server. It''s similar to the false post I had earlier, but this is a real problem. Here''s my code: def find_recipes_for_workorder @recipe_pages, @recipes = paginate_with_sort :recipes, :per_page => 10, \ :joins => ''left join workorder on

Chris, Finally got time to fully play with your suggestions. Had to re-code a bit of stuff but the concept works - just like a bought one :~). Many thanks for the solution, Kind Regards, Eric. For those curious - here''s what it was about; On Monday 02 January 2006 02:10, Eric Sloane tried to type something like: > Hi, > I''m trying to figure the most efficient way to

I''ve been listening to the discussions regarding the plans to eliminate push_with_attributes. While I think it''s good practice to make join models if you''re developing a new system, I can''t help but think t hat push_with_attributes should be left around to deal with legacy databases. I might want to wrap my application around a database I don''t

I have a join table A_B with columns[a_id, b_id, c_data default 1, d_data default 1]. If I do: @aobj.bobjs.push_with_attributes(@bobj,{:c_data => 0}) I find that the row inserted, has d_data set to 0 and not the default value specified in the database, which is 1. So I am having to explicitly set it using : @aobj.bobjs.push_with_attributes(@bobj,{:c_data => 0, :d_data => 1}). Is this

In trying to add timestamp support to habtm, I''ve stumped on a question which I hope you all help me solve. And that is, when adding a record twice to the list of associations with push with attributes, should the following test succeed or not? def test_pushing_twice dev = Devel.new("name"=>"victor") p =

Hi, I have a model class called Page and a corresponding pages table in the db. Is there a way to do Page.new without actually creating a corresponding record in the table? I want to set some values in it and then pass it to the add_content_component() method in the class below which calls push_with_attributes() which will actually create the record in the db? class Page <

I''d like to achieve something that is better described by the following code: <%= start_form_tag :action => ''create'' %> <%= text_area ''place'', ''description'', :cols => 100, :rows => 4 %> <div id="categories"> <%= form_remote_tag :update => ''categories'',

For a while, I''ve been getting that HMT is replacing HABTM. It appears that HMT can do all of what HABTM can do and more. The question is: Should I stop using HABTM? Let''s take a simple case: A case has many categories For a given category, there are certain valid statuses Category has_and_belongs_to_many :statuses Status has_and_belongs_to_many :categories Question: Is

In the Agile Rails book, on page 232 (PDF, 4th edition) there is an example of (within ActiveRecord) marking an article as read by a user at the present time. Short example code (from the book) here: class User < ActiveRecord::Base has_and_belongs_to_many :articles def read_article(article) articles.push_with_attributes(article, :read_at => Time.now) end # ... end