Module: AlsoMigrate::Migration::ClassMethods

Defined in:
lib/also_migrate/migration.rb

Instance Method Summary collapse

Instance Method Details

#method_missing_with_also_migrate(method, *arguments, &block) ⇒ Object 



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# File 'lib/also_migrate/migration.rb', line 18

def method_missing_with_also_migrate(method, *arguments, &block)
  args = Marshal.load(Marshal.dump(arguments))
  return_value = method_missing_without_also_migrate(method, *arguments, &block)

  supported = [
    :add_column, :add_index, :add_timestamps, :change_column,
    :change_column_default, :change_table, :create_table,
    :drop_table, :remove_column, :remove_columns,
    :remove_timestamps, :rename_column, :rename_table
  ]

  if !args.empty? && supported.include?(method)
    connection = ActiveRecord::Base.connection
    table_name = ActiveRecord::Migrator.proper_table_name(args[0])
    
    # Find models
    (::AlsoMigrate.configuration || []).each do |config|
      next unless config[:source].to_s == table_name
  
      # Don't change ignored columns
      [ config[:ignore] ].flatten.compact.each do |column|
        next if args.include?(column) || args.include?(column.intern)
      end

      # Run migration
      if method == :create_table
        ActiveRecord::Migrator::AlsoMigrate.create_tables(config)
      elsif method == :add_index && !config[:indexes].nil?
        next
      else
        [ config[:destination] ].flatten.compact.each do |table|
          if connection.table_exists?(table)
            args[0] = table
            begin
              connection.send(method, *args, &block)
            rescue Exception => e
              puts "(also_migrate warning) #{e.message}"
            end
          end
        end
      end
    end
  end
  
  return return_value
end