Sha256: 8df64fd0e620b9a367dcc36dcb8a8a0a22d56fe4add57503324fdf5dfcb6791d
Contents?: true
Size: 905 Bytes
Versions: 17
Compression:
Stored size: 905 Bytes
Contents
class MakeCommentsPolymorphic < ActiveRecord::Migration
def self.up
add_column :comments, :commentable_type, :string
add_column :comments, :commentable_id, :integer
add_index :comments, :commentable_id
Comment.all.each do |comment|
unless comment.page_id.blank?
comment.commentable_type = 'Page'
comment.commentable_id = comment.page_id
comment.save
end
end
# Clean up comment table. The index is removed automatically
remove_column :comments, :page_id
end
def self.down
add_column :comments, :page_id
add_index :comments, :page_id
Comment.all.each do |comment|
if comment.commentable_type == 'Page'
comment.page_id = comment.commentable_id
comment.save
end
end
remove_column :comments, :commentable_type, :string
remove_column :comments, :commentable_id, :integer
end
end
Version data entries
17 entries across 17 versions & 1 rubygems