Class: TagDb::CreateDb

Inherits:
ActiveRecord::Migration
  • Object
show all
Defined in:
lib/tagutils/schema.rb

Instance Method Summary collapse

Instance Method Details

#down ⇒ Object

Raises:

  • (ActiveRecord::IrreversibleMigration) 


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# File 'lib/tagutils/schema.rb', line 31

def down
  raise ActiveRecord::IrreversibleMigration
end

#up ⇒ Object 



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# File 'lib/tagutils/schema.rb', line 7

def up

create_table :tags do |t|
t.string  :key,   null: false
t.string  :slug,  null: false
t.string  :name    # todo: make required?  -- note: was title formerly
t.integer :grade, null: false, default: 1  # grade/tier e.g. 1/2/3 for now
## todo: add parent or similar for hierachy (for tag stacks/packs)
t.timestamps   # todo: use only t.datetime :created_at (do we get ar magic? is updated used/needed??)
end

add_index :tags, :key,  unique: true

create_table :taggings do |t|
t.references :tag,      null: false
t.references :taggable, polymorphic: true
t.timestamps   # todo: use only t.datetime :created_at (do we get ar magic? is updated used/needed??)
end

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

end