similar to: Find sub sub records

Hello everyone, first post to the list and a relative newbie to Rails development. Done quite a bit of JSP, PHP, HTML, XML etc and thought I would kick the tires on Rails to see if it can speed up development for internal applications. Anyway, I am running into a problem that is just driving me crazy and everything I read on the net doesn''t seem to help. I was hoping someone here might

Hi, I''m having a little trouble figuring out how to make a self- referential HABTM bi-directional. I have a Employee class. Each employee can have a couple of bosses, who are also employees. The employee class has the following HABTM: has_and_belongs_to_many :bosses, :class_name => "Employee", :join_table => "bosses_courses", :association_foreign_key =>

Hi, I have a has_and_belongs_to relationship between 2 objects, order and product. I''m getting a foreign key violation when trying to delete Order. Is there a special way of deleting orders without deleting products? ("has_many" has :dependant => :delete_all.... does "has_and_belongs_to" have something similar) Trying: Order.delete_all Getting: Mysql::Error:

Hello, I have a Company that has_and_belongs_to_many Persons. A Person has_many Emails. I want to display each Person''s Email for each Company, so I try this: companies = Company.find(:all) for company in companies persons = company.persons for person in persons puts person.email end end Unfortunately, this doesn''t work correctly. Let''s say the id of

Hello, I have a question about HABTM and counting records. I have these models class Sort < ActiveRecord::Base has_and_belongs_to_many :reports end class Report < ActiveRecord::Base has_and_belongs_to_many :region has_and_belongs_to_many :subjects has_and_belongs_to_many :sorts end And i would like to get a count like @sort.reports.count The problem is get this query:

Hi. I have a couple of best practices questions regarding polymorphic associations, naming join tables and user permissions. Currently I have implemented the user authentication model from the rails recipes book. Basically it goes something like this: MODEL CLASSES: class User < ActiveRecord::Base has_and_belongs_to_many :roles end class Role < ActiveRecord::Base

Ruby/Rails n00b here so go easy on me... I''ve been wracking my brain trying to figure out what is wrong here. I''ve checked all my models for the appropriate belongs_to, has_many, etc. I''ve checked to make sure I''m using singular and plurals in the right spot. I''ve checked my syntax around all my "within"''s and nothing seems to fix

hi all, has_and_belongs_to_many :cows has_and_belongs_to_many :milkmans i am using has_and_belongs_to_many in my app.I know this will create third table internally cows_milkmans in mysql database. when i migrate develpoment database i have table cows_milkmans. Good no Problem till now. Now a problem start When i migrate test database there is no such cows_milkmans table is present..

Class Role has_and_belongs_to_many :users Class User has_and_belongs_to_many :roles Class RolesUsers has_and_belongs_to_many :roles has_and_belongs_to_many :users According to the logs...I''m good through here @roles_users = RolesUsers.find(:all, :conditions => ["user_id = ?", params[:users_id]] ) the next section of controller code is a problem...

Hi, I am new to Ruby and Rails programming and am having difficulty with the following scenario... Consider the following model: class Studio < ActiveRecord::Base has_many :movies has_and_belongs_to_many :actors end class Movie < ActiveRecord::Base belongs_to :studio has_and_belongs_to_many :actors end class Actor < ActiveRecord::Base has_and_belongs_to_many :studios

Hi to all, I''m needing some help here ... I want to do an extension on a has_and_belongs_to_many to build a custom add method to the association. i have a table locations that has a many-to-many association with a tags tabel using a locations_tags table. i want to add a method to the Location has_and_belongs_to_many association so that i can do something like this on the location

Imagine I want to track people, and the clubs that they belong to. table people with columns person_id, person_name table clubs with columns club_id, club_name And I have the association table: table clubs_people with columns person_id, club_id Now I know how to do this habtm between the two, in order to associate people with clubs that they belong to. However my application also needs a

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

hello, I''am new to ROR and I have a problem. I have to models "rights" and "roles" on a has_and_belongs_to_many relationship, through "roles_rights" table. When I try to add a new role although I put in my form fields for each right, a record is added to table roles but none to roles_rights. I am using Ruby 1.8.4 rails 1.0 mysql 5.0 here is my code:

I don''t have a class by the name of "ReviewersScoreCard", yet my many to many configuration looks as follows. And, these errors while running some simple test with ./script/console is giving me a headache: ./script/console Loading development environment. >> r = Reviewer.find_first => #<Reviewer:0x19d0a48 @attributes={"id"=>"1",

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.

Hi, I''m currently having the situation where I have to implement a polymorphic has_and_belongs_to_many by introducing an in between model that handles all the "has_many :as" and "belongs_to :polymorphic" association implementations... and is not doing anything else. Thing I don''t like it here is, I am unnecessarily loading AR instances only to execute SQL

I was able to create a has_and_belongs_to_many relationship for my app, but now I''m not too sure how to write queries for it. Basically, I have a table ''courses'' that has_and_belongs_to_many ''categories'' and vice versa So I''m trying to figure out how I would find only the courses that belong to a category that I specify. Let''s

Say I have a post model that has_and_belongs_to_many :categories, and a category model that has_and_belongs_to_many :posts. So I have a categories_posts table to do the join. That''s all find and dandy. However I want to be able to find all the posts that belong to a specific category. I tried Post.find_by_category(:id) but that doesn''t work. Does anyone have any insight?

Signed-off-by: Loiseleur Michel <mloiseleur at linagora.com> --- app/models/vm.rb | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/app/models/vm.rb b/app/models/vm.rb index 88e0aef..0be3f89 100644 --- a/app/models/vm.rb +++ b/app/models/vm.rb @@ -27,7 +27,7 @@ class Vm < ActiveRecord::Base find(:all, :conditions=>{:state=>Task::STATE_QUEUED})