search for: has_many_and_belongs_to_mani

Hi there, Just a simple question I guess, but I am unable to find an anwser... How to delete a hmabtm relation? Any help will be appreciated :) Thanks, Fabrice. -- Posted via http://www.ruby-forum.com/.

Hi All, I''ve tried to do my searches, but can''t find reference to this anywhere - My question is about ActiveRecord inserts and IDs. I have a join table that both the models of the source tables join with "has_and_belongs_to_many". It seems like ActiveRecord is setting the "id" field for the join table- This should be an auto_increment and

I want to build an application that has the concept of administrative domains. What I mean by this is that administrators have access to different data, based on what domains they are a member of. The domain strucutre is hierarchical. Here is an example: - MLB - AL - East - Yankees - Red Sox ... + Central + West - NL + East + Central + West Now

Hi All, Probably this has been asked numerous times, I apologize already! Can somebody point me to a good tutorial on how Rails works with relations? I know about database design and normalization, I also know about programming in general (and OOP for that matter). Only thing I can say is that I''m following the "Four days on Rails" tutorial by John McCreesh. He writes

I have a project, it has members. I have the data modeled, the ActiveRecord setup but I''m running into a block as how to accomplish this in a view. I would like if when the Project is being edited to present a list of all users, and then have a checkbox beside each name. Those selected would be a member, those who are not, obviously would not be. I am, however, not closed to

Hello all, I''ve been working with Ruby on Rails for a few weeks now. It''s difficult for me because I don''t have much experience with Ruby, Rails, MySQL, or any other web-languages. But I''m trudging on and learning a lot. I''ve been working on a web application for my dad''s website; it''s a simple content manager for

Hi everyone, I''m currently finishing the planning phase of a small project I want to create. I read a bunch of tutorials about ActiveRecord and the different way to link your "tables" with belongs_to, has_many, has_and_belong_..., etc... However I''m stillnot sure if what I''m trying to do will work *well* with ActiveRecord. So enough talk,

Hi all, just joined and have only just kicked off with Rails (coming, but not departing, from WebObjects development). And so far there seems to be a lot of promise except for one thing I can''t figure out as yet -- the above problem. Say I have the following conceptual relationships: ITEMS <<--->> CARTS i.e., each item can belong to one or more categories. So really

I''m working on a simple CMS. The main data type are "listings" a listing habtm (has_and_belongs_to_many) categories and subcategories. Subcategories belong_to categories. Subcategories are basically the same as categories, but they are treated differently in a few situations. The problem is, I can''t seem to write the view/controller/model code that allows me to