similar to: HABTM - how to insert join row when associated rows exist

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

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

Heyo! I am setting up a self-referencial habtm relationship with the users of my app. I am using Chad Fowler''s "Rails Recipes" to get me started, and everything works great with the join table "people_friends". I add friends by doing somebody.friends << somebodyelse. However, with my app, there is an approval process so my join table has columns person_id,

I'm an absolute R newbie, but my question is (or at least seems) simple: I have a number of sensor values from different sensors, along with timestamps, so something like this: sensor 1: read_at: 1 2 4 5 6 value: 1 15 8 15 23 sensor 2: read_at: 2 3 4 6 7 value: 10 11 7 12 28 what I need is a line plot of the sensor values,

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,

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 <

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

Hi, I''ve got the following models: Company Package with a habtm relationship. In my controller, I have a ''dispatch'' action which does the following @companies.each do |company| @packages.each do |package| company.packages.push_with_attributes(package, :sent_on => Time.now) end end my table ''companies_packages'' therefore lists which

I didn''t find exactly an answer on this one, so I''d like to get a clarification from folks who live & breathe HABTM. class foo has_and_belongs_to_many :bars end class bar has_and_belongs_to_many :foos end (and yes, I have a bars_foos table in my db) def test_habtm bar = Bar.new foo = Foo.new foo.bars<<bar assert !foo.bars.empty? assert

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

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

Hi, I have 3 tables with HABTM relation. USERS -> QUOTE_TO_USER <- QUOTES Table QUOTE_TO_USER has 3 attributes: quote_id, user_id, component. I have a form where I can tie multiple users to QUOTE. This is easy one, thru "user_ids" (@quote[:user_ids] = @params[:quote][:user_ids]). In this form I have all users and I just check those I want to tie to this quote, however

I am trying to create a messaging system for my users but I''m having a hard time designing my db. This is what i have in mind, but I am not sure if its the best approach. user has_one inbox user has_one outbox inbox has_many messages outbox has_many messages inbox table user_id outbox table user_id messages table box_id (refers to either inbox or outbox - how?) from_id to_id

I have a table "domains", "users" and a join table of "domains_users" which has the domain_id, user_id as well as a userlevel_id attribute. I know that in the model User class I can set the value of this attribute with a function that calls: domains.push_with_attributes(domain, :userlevel => 1) but how do I access the userlevel field so that I can use it later

Other than doing a raw SQL update the only way to update join attributes is to remove an object and then push_with_attributes correct? -- Lon

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 <

Is there a way to update attributes in a HABTM join table? Right now I am deleting the join and then recreating it with new attributes. I have a table "categories" and another table "items". They are both HABTM with the join table "categories_items" between them. If an item is joined to a category once, no problem, we create the join. But if an item is