Method: Spider::Model::IdentityMapper#put

Defined in:
lib/spiderfw/model/identity_mapper.rb

#put(obj, check = false, fail_if_exists = false) ⇒ Object

Puts an object into the identity mapper. If check is true, it will first check if the object exists, and if found merge it with the given obj; if check is false, if a object with the same primary keys exists it will be overwritten.



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# File 'lib/spiderfw/model/identity_mapper.rb', line 83

def put(obj, check=false, fail_if_exists=false)
    return nil unless obj
    return obj if obj._no_identity_mapper
    if (obj.is_a?(QuerySet))
        obj.each_current_index{ |i| obj[i] = put(obj[i], check) }
        return obj
    else
        return obj if @pks[obj.object_id]
        raise IdentityMapperException, "Can't get without all primary keys" unless obj.primary_keys_set?
        pks = {}
        obj.class.primary_keys.each{ |key| pks[key.name] = obj.get(key) }
        pks = normalize_pks(obj.class, pks)
        pks.extend(HashComparison)
        @objects[obj.class] ||= {}
        if (check && (existent = @objects[obj.class][pks]) && existent.object_id != obj.object_id)
            if fail_if_exists
                #debugger
                raise IdentityMapperException, "A different instance of the same object #{obj.class}(#{obj.primary_keys.inspect}) already exists in the identity mapper" 
            end
            existent.merge!(obj)
            return existent
        else
            @objects[obj.class][pks] = obj
            @pks[obj.object_id] = pks
            traverse(obj)
            uow = Spider::Model.unit_of_work
            uow.add(obj) if uow && !uow.running?
            return obj
        end
    end
end