I’ve got a situation where I want a has_many :through association to
behave
somewhat like a normal has_many when << is called on the association.
ie I
would like it to return false instead of throwing an exception.
has_many :container_items
has_many :items, :through => :container_items do
def <<( item )
begin
self.concat item
rescue ActiveRecord::RecordInvalid => e @owner.errors.add( :item, e)
false
end
end
end
Is there anything that stands out as a stark issue with doing this? I
would
like to call owner in some other way but I have not found how to get at @owner with a method.
The join model has only timestamps in addition to the two f’keys
Any comments, insights, crits etc are welcome.
I’ve extracted this into a plugin if anyone would like to try it. I
can’t
make any guarantees though.
I’ve got a situation where I want a has_many :through association to
behave
somewhat like a normal has_many when << is called on the association.
ie I
would like it to return false instead of throwing an exception.
has_many :container_items
has_many :items, :through => :container_items do
def <<( item )
begin
self.concat item
rescue ActiveRecord::RecordInvalid => e @owner.errors.add( :item, e)
false
end
end
end
Is there anything that stands out as a stark issue with doing this? I
would
like to call owner in some other way but I have not found how to get at @owner with a method.
Looks like it might work to me. You can get the association owner in an
extension with the proxy_owner method.