Module: HstoreColumns::ClassMethods
- Defined in:
- lib/hstore-attributes/hstore_columns.rb
Instance Method Summary collapse
- #hstore(store_attribute, options = {}) ⇒ Object
- #hstore_accessor(hstore_column, attr_name, type = :string) ⇒ Object
- #type_cast_code(var_name, type) ⇒ Object
Instance Method Details
#hstore(store_attribute, options = {}) ⇒ Object
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# File 'lib/hstore-attributes/hstore_columns.rb', line 33 def hstore(store_attribute, = {}) accessors = [:accessors] accessors.each do |key, value| hstore_accessor store_attribute, key, value.nil? ? :string : value end end |
#hstore_accessor(hstore_column, attr_name, type = :string) ⇒ Object
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# File 'lib/hstore-attributes/hstore_columns.rb', line 23 def hstore_accessor(hstore_column, attr_name, type = :string) return unless table_exists? access_code = "(v=read_hstore('#{attr_name}', '#{hstore_column}')) && #{type_cast_code('v', type)}" class_eval <<-RUBY, __FILE__, __LINE__ + 1 def #{attr_name}; #{access_code}; end def #{attr_name}= value; write_hstore('#{attr_name}', value, '#{hstore_column}'); end RUBY end |
#type_cast_code(var_name, type) ⇒ Object
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# File 'lib/hstore-attributes/hstore_columns.rb', line 40 def type_cast_code(var_name, type) klass = ActiveRecord::ConnectionAdapters::Column case type.to_sym when :string, :text then var_name when :integer then "(#{var_name}.to_i rescue #{var_name} ? 1 : 0)" when :float then "#{var_name}.to_f" when :decimal then "#{klass}.value_to_decimal(#{var_name})" when :datetime, :timestamp then "#{klass}.string_to_time(#{var_name})" when :time then "#{klass}.string_to_dummy_time(#{var_name})" when :date then "#{klass}.string_to_date(#{var_name})" when :binary then "#{klass}.binary_to_string(#{var_name})" when :boolean then "#{klass}.value_to_boolean(#{var_name})" else var_name end end |