canvas-lms/db/migrate/20110325200936_add_position...

20 lines
677 B
Ruby

class AddPositionToCommunicationChannelIndexes < ActiveRecord::Migration[4.2]
tag :predeploy
def self.up
remove_index :communication_channels, :column => %w(user_id)
add_index :communication_channels, %w(user_id position)
remove_index :communication_channels, :column => %w(pseudonym_id)
add_index :communication_channels, %w(pseudonym_id position)
end
def self.down
remove_index :communication_channels, :column => %w(user_id position)
add_index :communication_channels, %w(user_id)
remove_index :communication_channels, :column => %w(pseudonym_id position)
add_index :communication_channels, %w(pseudonym_id)
end
end