BTW As snusnu suggested I also tried calling @trip.attributes(trip) followed by @trip.save (in the controller's create action), but the call to attributes() triggered the same old dirty resource error as the update method.
There is no code that modifies the object before calling save or update. It just receives fields submitted from a form. Is there a correct way to use the nested_attributes plugin? If DM is *meant* to raise the dirty resource error then how do you work around it or fix it in order to make the plugin usable? Many thanks George On Mar 15, 12:04 pm, George <[email protected]> wrote: > Thanks snusnu. > > Interestingly, nothing is modifying the attributes before save or > update. > > When the submitted form contains associated fields such as > trip[trip_clients_attributes][0][is_invoicable] then we get the dirty > resource error. > > Here's an example of submitted params: > > merb : worker (port 81) ~ Params: {"_method"=>"put", > "trip"=>{"version_of_trip_id"=>"94154", "name"=>"A lovely new trip2", > "start_date"=>"03/10/2010", "user_id"=>"99", "adults"=>"1", > "end_date"=>"03/10/2010", "company_id"=>"1", "children"=>"0", > "type_id"=>"1", "infants"=>"0", > "trip_clients_attributes"=>{"0"=>{"id"=>"54198", "is_single"=>"0", > "is_primary"=>"1", "is_invoicable"=>"1"}, "1"=>{"id"=>"54215", > "is_single"=>"1", "is_primary"=>"0", "is_invoicable"=>"1"}}}, > "client_id"=>"2138471587", "group_id"=>"4", "submit"=>"Save changes", > "controller"=>"trips", "action"=>"update", "id"=>"94154", > "format"=>nil} > > Controller action: > > def update(id, trip) > @trip = Trip.get(id) > raise NotFound unless @trip > if @trip.update(trip) > ... > > On Mar 13, 1:21 am, Martin Gamsjaeger <[email protected]> wrote: > > > George, > > > Calling #update on a dirty resource indeed raises an error and that is > > the expected dm behavior (it's got nothing to do with my plugin). If > > you find yourself updating the attributes of a resource in different > > places before persisting it, you should use #save instead of #update. > > This is probably confusing to some people, because #update only > > started to raise that error with recent versions of dm. I'm not sure > > if it was introduced in 0.10.1 or 0.10.2, but iirc, it wasn't present > > in 0.10.0 and definitely not in 0.9.x. > > > cheers > > snusnu > > > On Fri, Mar 12, 2010 at 16:43, George <[email protected]> > > wrote: > > > Am using snusnu's excellent "dm-accepts_nested_attributes" plugin but > > > getting an error when submitting a form to update a "Trip" object: > > > > "Update Conflict Error 500 TripClient#update cannot be called on a > > > dirty resource" > > > > trips are related to clients through trip_clients > > > and the Trip model accepts_nested_attributes_for :trip_clients > > > (to allow a couple of extra fields to be set on each association, such > > > as 'is_invoicable') > > > > It saves fine if I only save changes to fields in trip_clients, but > > > the error crops up if I also submit changes to the trip object at the > > > same time. > > > > Any ideas why? > > > > Many thanks, > > > George > > > > -- > > > You received this message because you are subscribed to the Google Groups > > > "DataMapper" group. > > > To post to this group, send email to [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]. > > > For more options, visit this group > > > athttp://groups.google.com/group/datamapper?hl=en. > > -- You received this message because you are subscribed to the Google Groups "DataMapper" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/datamapper?hl=en.
