Module: Spider::Model::Synchronized::ClassMethods

Defined in:
lib/spiderfw/model/mixins/synchronized.rb

Instance Method Summary collapse

Instance Method Details

#synchronization(name) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/synchronized.rb', line 67

def synchronization(name)
    @synchronizations ||= []
    @synchronizations << name
    self.primary_keys.each do |k|
        element(synchronization_key(name, k), k.type) if k.autogenerated? && !k.attributes[:no_sync_map]
    end
end

#synchronization_key(synchronization, key) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/synchronized.rb', line 75

def synchronization_key(synchronization, key)
    return key.name unless key.autogenerated? && !key.attributes[:no_sync_map]
    return :"sync_#{synchronization}_#{key.name}"
end

#synchronizing(name = nil) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/synchronized.rb', line 15

def synchronizing(name=nil) 
    return @synchronizing unless name
    @synchronizing = name

    with_mapper do
        
        def before_save(obj, mode)
            return super unless @model.synchronizing
            obj = get_synchronized(obj)
            super(obj, mode)
        end
        
        def get_synchronized(obj)
            @model.elements_array.select{ |el| 
                obj.element_has_value?(el) && obj.model.mapper.have_references?(el) &&
                el.model? && el.model.is_a?(Synchronized) && el.model.synchronizing == @model.synchronizing
            }.each do |el|
                el_objects = obj.get(el)
                el_objects = [el_objects] unless (el_objects.is_a?(Enumerable))
                new_el_objects = []
                el_objects.each do |el_object|
                    cond = Condition.new
                    el.model.primary_keys.each do |k|
                        cond[el.model.synchronization_key(@model.synchronizing, k)] = el_object.get(k)
                    end
                    res = el.model.find(cond)
                    raise SynchronizationException, "The synchronized object was not unique" if res.length > 1
                    if (res.length == 1)
                        el.model.primary_keys.each do |k|
                            new_el_objects << res[0]
                        end
                    end
                end
                if !el.multiple?
                    obj.set(el, new_el_objects[0])
                else
                    obj.set(el, new_el_objects)
                end
            end
            @model.primary_keys.each do |k|
                if (k.autogenerated? && !k.attributes[:no_sync_map])
                    obj.set(@model.synchronization_key(@model.synchronizing, k), obj.get(k))
                    obj.set(k.name, nil)
                end
            end
            return obj
        end
        
    end
    
end