Module: ActiveRecord::AttributeMethods::TimeZoneConversion::ClassMethods

### Home Classes Methods

### In Files

- lib/active_record/attribute_methods/time_zone_conversion.rb

### Methods

- #attribute_cast_code
- #define_method_attribute=

### Files

- README.rdoc

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No matching classes.

# ActiveRecord::AttributeMethods::TimeZoneConversion::ClassMethods

### Protected Instance Methods

attribute_cast_code(attr_name) click to toggle source

The enhanced read method automatically converts the UTC time stored in the database to the time zone stored in Time.zone.

    # File lib/active_record/attribute_methods/time_zone_conversion.rb, line 21
    def attribute_cast_code(attr_name)
      column = columns_hash[attr_name]

      if create_time_zone_conversion_attribute?(attr_name, column)
        typecast             = "v = #{super}"
        time_zone_conversion = "v.acts_like?(:time) ? v.in_time_zone : v"

        "((#{typecast}) && (#{time_zone_conversion}))"
      else
        super
      end
    end

define_method_attribute=(attr_name) click to toggle source

Defined for all `datetime` and `timestamp` attributes when `time_zone_aware_attributes` are enabled. This enhanced write method will automatically convert the time passed to it to the zone stored in Time.zone.

    # File lib/active_record/attribute_methods/time_zone_conversion.rb, line 36
    def define_method_attribute=(attr_name)
      if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name])
        method_body, line =                 def #{attr_name}=(original_time)                  original_time = nil if original_time.blank?                  time = original_time                  unless time.acts_like?(:time)                    time = time.is_a?(String) ? Time.zone.parse(time) : time.to_time rescue time                  end                  time = time.in_time_zone rescue nil if time                  previous_time = attribute_changed?("#{attr_name}") ? changed_attributes["#{attr_name}"] : read_attribute(:#{attr_name})                  write_attribute(:#{attr_name}, original_time)                  #{attr_name}_will_change! if previous_time != time                  @attributes_cache["#{attr_name}"] = time                end, __LINE__ + 1
        generated_attribute_methods.module_eval(method_body, __FILE__, line)
      else
        super
      end
    end

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