I'm trying to create a has many through association but I've must have gotten it all wrong.
I believe i got the association code right but when I try to create joined records this is what I get.
1.9.3p194 :001 > d = Day.find(1) Day Load (3.9ms) SELECT "days".* FROM "days" WHERE "days"."id" = ? LIMIT 1 [["id", 1]] => # 1.9.3p194 :002 > d.students.create!(:id => 1) (0.1ms) begin transaction SQL (2.0ms) INSERT INTO "students" ("created_at", "name", "updated_at") VALUES (?, ?, ?) [["created_at", Thu, 18 Apr 2013 12:49:25 UTC +00:00], ["name", nil], ["updated_at", Thu, 18 Apr 2013 12:49:25 UTC +00:00]] (0.8ms) rollback transaction ActiveRecord::UnknownAttributeError: unknown attribute: day_id
Models
# == Schema Information
#
# Table name: students
#
# id :integer not null, primary key
# name :string(255)
# created_at :datetime not null
# updated_at :datetime not null
#
class Student < ActiveRecord::Base
attr_accessible :name
has_many :days, :through => :days_students
has_many :days_students, :dependent => :destroy, :class_name => "DayStudent"
end
# == Schema Information
#
# Table name: days
#
# id :integer not null, primary key
# created_at :datetime not null
# updated_at :datetime not null
#
class Day < ActiveRecord::Base
#attr_accessible
has_many :students, :through => :days_students
has_many :days_students, :dependent => :destroy, :class_name => "DayStudent"
end
# == Schema Information
#
# Table name: day_students
#
# id :integer not null, primary key
# students_id :integer
# days_id :integer
# created_at :datetime not null
# updated_at :datetime not null
#
class DayStudent < ActiveRecord::Base
attr_accessible :student_id, :day_id
belongs_to :day
belongs_to :student
end
