Module: Entity::Property

Defined in:
lib/scout/entity/property.rb

Defined Under Namespace

Classes: MultipleEntityProperty

Constant Summary collapse

DEFAULT_PROPERTY_TYPE = 
:both

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#persisted_methods ⇒ Object

Returns the value of attribute persisted_methods.



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# File 'lib/scout/entity/property.rb', line 14

def persisted_methods
  @persisted_methods
end

#properties ⇒ Object

Returns the value of attribute properties.



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# File 'lib/scout/entity/property.rb', line 14

def properties
  @properties
end

Class Method Details

.array_method(name) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 31

def self.array_method(name)
  ("_ary_" + name.to_s).to_sym
end

.multi_method(name) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 35

def self.multi_method(name)
  ("_multi_" + name.to_s).to_sym
end

.persist(name, obj, type, options, &block) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 16

def self.persist(name, obj, type, options, &block)
  return yield unless options[:persist]
  if (type == :annotation || type == :annotations) && options[:annotation_repo]
    repo = options[:annotation_repo]
    Persist.annotation_repo_persist(repo, [name, obj.id] * ":", &block)
  else

    Persist.persist([name, obj.id] * ":", type, options.dup, &block)
  end
end

.single_method(name) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 27

def self.single_method(name)
  ("_single_" + name.to_s).to_sym
end

Instance Method Details

#persist(name, type = :marshal, options = {}) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 148

def persist(name, type = :marshal, options = {})
  options = IndiferentHash.add_defaults options, persist: true,
    dir: File.join(Entity.entity_property_cache, self.to_s, name.to_s)
  @persisted_methods ||= {}
  @persisted_methods[name] = [type, options]
end

#persisted?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/scout/entity/property.rb', line 155

def persisted?(name)
  @persisted_methods ||= {}
  @persisted_methods.include?(name)
end

#property(name_and_type, &block) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 40

def property(name_and_type, &block)
  name, type = case name_and_type
               when Symbol, String
                 [name_and_type.to_sym, DEFAULT_PROPERTY_TYPE]
               else
                 name_and_type.collect.first
               end

  real_method = case type
                when :single, :single2array
                  Entity::Property.single_method(name)
                when :array, :array2single
                  Entity::Property.array_method(name)
                when :multiple
                  Entity::Property.multi_method(name)
                when :both
                  name
                else
                  raise "Type of property unknown #{type}"
                end

  properties.push name


  entity_class = self
  if type == :multiple
    self.define_method(real_method) do |*args,**kwargs|
      if entity_class.persisted_methods && entity_class.persisted_methods[name]
        type, options = entity_class.persisted_methods[name]
      else
        type, options = nil, {persist: false}
      end

      missing = []
      responses = {}
      self.each do |item|
        begin
          responses[item] = Entity::Property.persist(name, item, type, options) do
            raise MultipleEntityProperty 
          end
        rescue MultipleEntityProperty
          missing << item
        end
      end

      if missing.any?
        self.annotate(missing)

        new_responses = missing.instance_exec(*args, **kwargs, &block)

        missing.each do |item,i|
          responses[item] = Entity::Property.persist(name, item, type, options) do
            Array === new_responses ? new_responses[item.container_index] : new_responses[item]
          end
        end
      end

      responses.values_at(*self)
    end
  else
    self.define_method(real_method) do |*args,**kwargs|
      if entity_class.persisted_methods && entity_class.persisted_methods[name]
        type, options = entity_class.persisted_methods[name]
      else
        type, options = nil, {persist: false}
      end

      Entity::Property.persist(name, self, type, options) do
        self.instance_exec(*args, **kwargs, &block)
      end
    end
  end

  return if type == :both

  self.define_method(name) do |*args,**kwargs|

    method_type = %w(single_method array_method multi_method).select do |method_type|
      self.methods.include?(Entity::Property.send(method_type, name))
    end.first

    real_method = Entity::Property.send(method_type, name)

    if Array === self
      case method_type
      when 'single_method'
        self.collect{|item| item.send(real_method, *args, **kwargs) }
      when 'array_method', 'multi_method'
        self.send(real_method, *args, **kwargs)
      end
    else
      case method_type
      when 'single_method'
        self.send(real_method, *args, **kwargs)
      when 'array_method', 'multi_method'
        if AnnotatedArray.is_contained?(self)
          cache_code = Misc.digest({:name => name, :args => args})
          res = (self.container._ary_property_cache[cache_code] ||= self.container.send(real_method, *args, **kwargs))
          Array === res ? res[self.container_index] : res[self]
        else
          res = self.make_array.send(real_method)
          Array === res ? res[0] : res[self]
        end
      end
    end
  end
end

#unpersist(name) ⇒ Object 



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# File 'lib/scout/entity/property.rb', line 160

def unpersist(name)
  @persisted_methods ||= {}
  @persisted_methods.delete(name)
end