Class: CreateTaggableTables

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/tasks/templates/migration.rb

Class Method Summary collapse

Class Method Details

.down ⇒ Object 



25
26
27
28
 
# File 'lib/tasks/templates/migration.rb', line 25

def self.down
  drop_table :taggings
  drop_table :tags
end

.up ⇒ Object 



2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
# File 'lib/tasks/templates/migration.rb', line 2

def self.up
  create_table :tags do |t|
    t.column :name, :string
  end

  create_table :taggings do |t|
    t.column :tag_id, :integer
    t.column :taggable_id, :integer
    t.column :tagger_id, :integer
    t.column :tagger_type, :string

    # You should make sure that the column created is
    # long enough to store the required class names.
    t.column :taggable_type, :string
    t.column :context, :string

    t.column :created_at, :datetime
  end

  add_index :taggings, :tag_id
  add_index :taggings, [:taggable_id, :taggable_type, :context]
end