Module: Spider::Model::Converted::ClassMethods

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

Instance Method Summary collapse

Instance Method Details

#conversion(name, app_or_model) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 82

def conversion(name, app_or_model)
    model = app_or_model.subclass_of?(Spider::Model::BaseModel) ? app_or_model : app_or_model.const_get(self.short_name)
    @conversions ||= {}
    @conversions[name] = model
    #Spider::Logger.debug("Converting #{self} from #{model}")
    model.primary_keys.each do |k|
        element(conversion_key(name, k), k.type, :hidden => true) unless k.attributes[:no_conv_map]
    end
end

#conversion_key(conversion, key) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 97

def conversion_key(conversion, key)
    return key.name if key.attributes[:no_conv_map]
    return :"conv_#{conversion}_#{key.name}"
end

#conversion_model ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 92

def conversion_model
    return nil unless @conversions
    @conversions[@converting]
end

#conversions ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 78

def conversions
    @conversions
end

#convert(obj) ⇒ Object 



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

def convert(obj)
    custom_conv_method = "convert_from_#{self.converting}"
    if (self.respond_to?(custom_conv_method))
        res = self.send(custom_conv_method, obj)
    else
        res = self.new
        obj.class.elements_array.each do |el|
            our_element = self.elements[el.name]
            next unless our_element
            if (el.model?)
                if (our_element.model.is_a?(InlineModel))
                    objects = el.multiple? ? obj.get(el) : [obj.get(el)]
                    objects.each do |sub_obj|
                        next unless sub_obj # WTF?
                        res.set(el.name, obj.get(el).get(el.model.primary_keys[0]))
                    end
                    next
                end
                next unless our_element.model.is_a?(Converted)
                next if our_element.attributes[:added_reverse] || our_element.has_single_reverse?
                objects = el.multiple? ? obj.get(el) : [obj.get(el)]
                objects.each do |sub_obj|
                    next unless sub_obj # WTF?
                    convert_associated(self.elements[el.name], sub_obj, res)
                end
            else
                res.set(el.name, obj.get(el))
            end
        end
        self.conversion_model.primary_keys.each do |k|
            res.set(conversion_key(self.converting, k), obj.get(k))
        end
    end
    if (self.respond_to?("after_convert_from_#{self.converting}"))
        return self.send("after_convert_from_#{self.converting}", obj, res)
    end
    return res
end

#convert_associated(element, src, dest) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 54

def convert_associated(element, src, dest)
    puts "Converting associated #{element.name}"
    converted_el_model = element.type.conversions[self.converting]
    cond = Condition.new
    converted_el_model.primary_keys.each do |k|
        cond[element.type.conversion_key(self.converting, k)] = src.get(k)
    end
    res = element.type.find(cond)
    if res.length > 1
        Spider::Logger.error("The converted object was not unique")
        Spider::Logger.error(res)
    end
    if (element.multiple?)
        dest.get(element) << res[0]
    else
        dest.set(element, res[0])
    end
end

#converting(name = nil) ⇒ Object 



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# File 'lib/spiderfw/model/mixins/converted.rb', line 73

def converting(name=nil) 
    return @converting unless name
    @converting = name
end