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.



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
 
# 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)
            #debugger if fail_if_exists
            raise IdentityMapperException, "A different instance of the same object #{obj.inspect} already exists in the identity mapper" if fail_if_exists
            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