diff options
Diffstat (limited to 'activerecord/lib/active_record/nested_attributes.rb')
| -rw-r--r-- | activerecord/lib/active_record/nested_attributes.rb | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb index 8bfdadd0e3..5778223c74 100644 --- a/activerecord/lib/active_record/nested_attributes.rb +++ b/activerecord/lib/active_record/nested_attributes.rb @@ -86,7 +86,8 @@ module ActiveRecord # For each key in the hash that starts with the string 'new' a new model # will be instantiated. When the proc given with the <tt>:reject_if</tt> # option evaluates to +false+ for a certain attribute hash no record will - # be built for that hash. + # be built for that hash. (Rejecting new records can alternatively be done + # by utilizing the <tt>'_delete'</tt> key. Scroll down for more info.) # # params = { 'member' => { # 'name' => 'joe', 'posts_attributes' => { @@ -258,11 +259,14 @@ module ActiveRecord # If a <tt>:reject_if</tt> proc exists for this association, it will be # called with the attributes as its argument. If the proc returns a truthy # value, the record is _not_ build. + # + # Alternatively, you can specify the <tt>'_delete'</tt> key to _not_ build + # a record. See should_destroy_nested_attributes_record? for more info. def build_new_nested_attributes_record(association_name, attributes) if reject_proc = self.class.reject_new_nested_attributes_procs[association_name] return if reject_proc.call(attributes) end - send(association_name).build(attributes) + send(association_name).build(attributes) unless should_destroy_nested_attributes_record?(true, attributes) end # Assigns the attributes to the record specified by +id+. Or marks it for |