Class: TagticalMigration

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

Class Method Summary collapse

Class Method Details

.down ⇒ Object 



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# File 'lib/generators/tagtical/migration/templates/active_record/migration.rb', line 31

def self.down
  drop_table :taggings
  drop_table :tags
end

.up ⇒ Object 



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# File 'lib/generators/tagtical/migration/templates/active_record/migration.rb', line 2

def self.up
  create_table :tags do |t|
    t.string :value
    t.string :type, :limit => 100
  end
  add_index :tags, [:type, :value], :unique => true
  add_index :tags, :value

  create_table :taggings do |t|
    t.float :relevance
    t.references :tag

    # You should make sure that the column created is
    # long enough to store the required class names.
    t.references :taggable, :polymorphic => true, :limit => 100
    if Tagtical.config.polymorphic_tagger?
      t.references :tagger, :polymorphic => true, :limit => 100
    else
      t.integer :tagger_id
    end

    t.datetime :created_at
  end

  add_index :taggings, :tag_id
  add_index :taggings, [:taggable_id, :taggable_type]
  add_index :taggings,  Tagtical.config.polymorphic_tagger? ? [:tagger_id, :tagger_type] : [:tagger_id]
end