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Add update_only example to AR nested attributes doc [ci_skip]

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This commit is contained in:
Felipe Oliveira 2017-10-03 08:41:12 -03:00
parent e0d2207ab3
commit 71b15603fd
1 changed files with 12 additions and 0 deletions
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12
activerecord/lib/active_record/nested_attributes.rb
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@ -63,6 +63,18 @@ module ActiveRecord
# member.update params[:member]
# member.avatar.icon # => 'sad'
#
# If you want to update the current avatar without providing the id, you must add <tt>:update_only</tt> option.
#
# class Member < ActiveRecord::Base
# has_one :avatar
# accepts_nested_attributes_for :avatar, update_only: true
# end
#
# params = { member: { avatar_attributes: { icon: 'sad' } } }
# member.update params[:member]
# member.avatar.id # => 2
# member.avatar.icon # => 'sad'
#
# By default you will only be able to set and update attributes on the
# associated model. If you want to destroy the associated model through the
# attributes hash, you have to enable it first using the