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-rw-r--r--activemodel/lib/active_model/conversion.rb13
1 files changed, 11 insertions, 2 deletions
diff --git a/activemodel/lib/active_model/conversion.rb b/activemodel/lib/active_model/conversion.rb
index 8bcad6db0f..12687c70d3 100644
--- a/activemodel/lib/active_model/conversion.rb
+++ b/activemodel/lib/active_model/conversion.rb
@@ -46,9 +46,13 @@ module ActiveModel
# class Person
# include ActiveModel::Conversion
# attr_accessor :id
+ #
+ # def initialize(id)
+ # @id = id
+ # end
# end
#
- # person = Person.create(id: 1)
+ # person = Person.new(1)
# person.to_key # => [1]
def to_key
key = respond_to?(:id) && id
@@ -61,12 +65,17 @@ module ActiveModel
# class Person
# include ActiveModel::Conversion
# attr_accessor :id
+ #
+ # def initialize(id)
+ # @id = id
+ # end
+ #
# def persisted?
# true
# end
# end
#
- # person = Person.create(id: 1)
+ # person = Person.new(1)
# person.to_param # => "1"
def to_param
(persisted? && key = to_key) ? key.join("-") : nil