module Sortability::ActiveRecord::Migration
Public Instance Methods
add_sortable_column(table, options = {})
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Adds a non-null sortable column to an existing table (no index)
# File lib/sortability/active_record/migration.rb, line 5 def add_sortable_column(table, options = {}) options[:null] = false if options[:null].nil? on = options.delete(:on) || :sort_position add_column table, on, :integer, options end
add_sortable_index(table, options = {})
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Adds a unique index covering the sort scope cols in an existing table
# File lib/sortability/active_record/migration.rb, line 13 def add_sortable_index(table, options = {}) options[:unique] = true if options[:unique].nil? scope = options.delete(:scope) on = options.delete(:on) || :sort_position columns = ([scope] << on).flatten.compact add_index table, columns, options end