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Class: ActiveModel::Type::DateTime

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
ActiveRecord::Type::DateTime, ActiveRecord::ConnectionAdapters::PostgreSQL::OID::DateTime, ActiveRecord::ConnectionAdapters::PostgreSQL::OID::Timestamp, ActiveRecord::ConnectionAdapters::PostgreSQL::OID::TimestampWithTimeZone
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Value
Instance Chain:
self, Value
Inherits: ActiveModel::Type::Value
Defined in: activemodel/lib/active_model/type/date_time.rb

Overview

Active Model DateTime Type

::ActiveModel::Attribute type to represent dates and times. It is registered under the :datetime key.

class Event
  include ActiveModel::Attributes

  attribute :start, :datetime
end

event = Event.new
event.start = "Wed, 04 Sep 2013 03:00:00 EAT"

event.start.class # => Time
event.start.year  # => 2013
event.start.month # => 9
event.start.day   # => 4
event.start.hour  # => 3
event.start.min   # => 0
event.start.sec   # => 0
event.start.zone  # => "EAT"

String values are parsed using the ISO 8601 datetime format. Partial time-only formats are also accepted.

event.start = "06:07:08+09:00"
event.start.utc # => 1999-12-31 21:07:08 UTC

The degree of sub-second precision can be customized when declaring an attribute:

class Event
  include ActiveModel::Attributes

  attribute :start, :datetime, precision: 4
end

Class Method Summary

Value - Inherited

.new

Initializes a type with three basic configuration settings: precision, limit, and scale.

Instance Attribute Summary

Value - Inherited

#limit, #precision, #scale

Instance Method Summary

Value - Inherited

#==, #as_json, #assert_valid_value,
#cast

::ActiveModel::Type casts a value from user input (e.g. from a setter).
#changed?

Determines whether a value has changed for dirty checking.
#changed_in_place?

Determines whether the mutable value has been modified since it was read.
#deserialize

Converts a value from database input to the appropriate ruby type.
#eql?

Alias for Value#==.
#hash,
#serializable?

Returns true if this type can convert value to a type that is usable by the database.
#serialize

Casts a value from the ruby type to a type that the database knows how to understand.
#type

Returns the unique type name as a ::Symbol.
#cast_value

Convenience method for types which do not need separate type casting behavior for user and database inputs.

Constructor Details

This class inherits a constructor from ActiveModel::Type::Value

Instance Method Details

#type

[ GitHub ] 

  


# File 'activemodel/lib/active_model/type/date_time.rb', line 49



def type
  :datetime
end