Module: DataMapper::Adapters::DataObjectsAdapterAdjust

Includes:
SQL
Defined in:
lib/dm-adjust/adapters/data_objects_adapter.rb

Defined Under Namespace

Modules: SQL

Instance Method Summary collapse

Instance Method Details

#adjust(attributes, collection) ⇒ Object 



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# File 'lib/dm-adjust/adapters/data_objects_adapter.rb', line 4

def adjust(attributes, collection)
  query = collection.query

  # TODO: if the query contains any links, a limit or an offset
  # use a subselect to get the rows to be updated

  properties  = []
  bind_values = []

  # make the order of the properties consistent
  query.model.properties(name).each do |property|
    next unless attributes.key?(property)
    properties  << property
    bind_values << attributes[property]
  end

  statement, conditions_bind_values = adjust_statement(properties, query)

  bind_values.concat(conditions_bind_values)

  execute(statement, *bind_values).affected_rows
end