Can\'t wrap my head around this... class User < ActiveRecord::Base has_many :fantasies, :through => :fantasizings
What I want to do is to apply Association method of data mining on my SQL Server 2000 database. Association rule is something like \"finding the most frequent items that appear together in database.\"
I searched and tried a lot, but I can\'t accomplish it as I want.. so here\'s my problem. My models are:
I have three models: User, RaceWeek, Race. Current associations: class User < ActiveRecord::Base has_many :race_weeks
I am having trouble with this association. I need to get an array of the primaries that belong to the soldiers in a platoon. 开发者_开发百科So once I get all the soldiers in a platoon:
In both association and aggregation, one class maintains a reference to another开发者_Go百科 class.
In this example, I create a user with no profile, then later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is usin
im trying to do this: class Event < ActiveRecord::Base belongs_to :previous_event has_one :event, :as => :previous_event, :foreign_key => \"previous_event_id\"
I have only two tables in my database with a one-to-many relationship between them (user hasMany messages) and am trying to get basic CRUD functionality going. Bake detects the associations correctly
I\'m new to rails and have volunteered to help out the local High School Track team with a simple database that tracks the runners performances.For the moment, I have three models: Runners, Race_Data
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