我有一个具有step_id属性的Report模型,并且我想将此属性移到ReportSheets模型,有没有一种方法可以从终端生成迁移,或者我应该自己编写代码:
class CreateReports < ActiveRecord::Migration[4.2]
def change
create_table :reports, id: :uuid do |t|
t.uuid :declarant_id
t.integer :reference
t.datetime :sent_at
t.uuid :step_id
t.boolean :is_archived, default: false
t.uuid :updated_by_id
t.string :device_id
t.timestamps null: false
end
add_index :reports, :reference, unique: true
add_index :reports, :declarant_id
add_index :reports, :device_id
add_index :reports, :step_id
end
end
class CreateReportSheets < ActiveRecord::Migration[4.2]
def change
create_table :report_sheets, id: :uuid do |t|
t.string :title, null: false
t.boolean :is_template, default: false
t.uuid :report_id
t.integer :seed_number
t.integer :order
t.hstore :steps, array: true, default: '{}', null: false
t.uuid :template_id
t.boolean :is_archived, default: false
t.uuid :updated_by_id
t.string :device_id
t.timestamps null: false
end
add_index :report_sheets, :report_id
add_index :report_sheets, :template_id
add_index :report_sheets, :seed_number
add_index :report_sheets, :is_template
add_index :report_sheets, :is_archived
add_index :report_sheets, :device_id
end
end
,并且在两个模型之间存在某种关系,例如add_index:reports,:step_id?