我有两个单独的迁移文件:
class CreateLeadProfiles < ActiveRecord::Migration
def change
create_table :lead_profiles do |t|
t.belongs_to :Contact
t.timestamps
end
add_index :lead_profiles, :contact_id
end
end
和
class CreateClientProfiles < ActiveRecord::Migration
def change
create_table :client_profiles do |t|
t.belongs_to :Contact
t.belongs_to :LeadProfile
t.timestamps
end
add_index :client_profiles, :contact_id
add_index :client_profiles, :lead_profile_id
end
end
运行rake db:migrate时,出现以下错误:
Mysql2::Error: Key column 'lead_profile_id' doesn't exist in table: CREATE INDEX `index_client_profiles_on_lead_profile_id` ON `client_profiles` (`lead_profile_id`)
client_profile belongs_to lead_profile,因此应该有一个lead_profile_id。我希望将该外键编入索引。我做错了什么?
答案 0 :(得分:0)
尝试:
class CreateClientProfiles < ActiveRecord::Migration
def change
create_table :client_profiles do |t|
t.belongs_to :contact
t.belongs_to :lead_profile
t.timestamps
end
add_index :client_profiles, :contact_id
add_index :client_profiles, :lead_profile_id
end
end