Wes Gamble wrote:
> All,
>
> AS 2.1
> Rails 2.1
>
> I have two models, MedicalFacility and MedicalFaciiltyCategory which are
> HABTM to each other.
>
> In the MedicalFacilityController, I pull both the MedicalFacility
> records, as well as their related MedicalFacilityCategory records, using
> a joins_for_collection like so:
>
> def joins_for_collection
> [:medical_facility_categories]
> end
>
> When I get the result set back for the AS "list" action, the result set
> hash has "id" set to the ID of the MedicalFacilityCategory and
> "medical_facility_id" set to the ID of the MedicalFacility. This is
> fine in the sense that there is no conflict between the two "id" columns
> in the result set.
>
> However, it is not acceptable.
>
> What happens is that because "id" is the _category_ id, all of the
> action links in the scaffold are using it to access the _facility_,
> which is wrong.
> Similarly in the JSON output which is used by an iPhone client, the
> client is pulling up the same _facility_ because it is using the same
> "id" (from the category).
>
It turns out that my problem has to do with an interaction issue between
Geokit (the MedicalFacility model acts_as_mappable) and AS. The custom
finder processing for Geokit forces the SELECT clause in my AS join
query to be SELECT *, whereas plain vanilla AS will correctly do SELECT
medical_facility.*
Because I'm getting the SELECT *, the columns of the same name from the
join table are overwriting the result set.
I have temporarily fixed this by hacking the result set using a method
in MedicalFacilitiesController like so:
def modify_AS_list_result_set
@records.each {|r| r[:id] = r[:medical_facility_id]}
end
and hacking list.rb (in AS) to make a callback to this method just
before the rendering occurs.
I will look into patching Geokit or something else.
Wes
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