Module: Content::ItemAssociationClassMethods

Included in:
Item
Defined in:
lib/content/item_association_class_methods.rb

Instance Method Summary collapse

Instance Method Details

#belongs_to(name, options = {}) ⇒ Object Also known as: has_one 



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# File 'lib/content/item_association_class_methods.rb', line 72

def belongs_to(name, options = {})
  raise "name must be singular" unless name.to_s == name.to_s.singularize
  name_id = "#{name}_id".to_sym
  ignored_attributes << name
  serialized_attributes << name_id

  define_method(name_id) do
    self[name_id].to_i
  end

  define_method("#{name_id}=".to_sym) do |val|
    if val.is_a? Content::Item
      self[name] = val
      self[name_id] = val.id.to_i 
    else
      self[name_id] = val.to_i
    end
  end

  define_method(name) do
    self[name] ||= self.class.find(self[name_id].to_i)
  end

  define_method("#{name}=".to_sym) do |val|
    if val.is_a? Content::Item
      val.save! if val.new_record?
      self[name] = val
      self[name_id] = val.id.to_i
    end
  end
end

#field(name_or_ary, field_type = :string) ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 106

def field(name_or_ary, field_type = :string)
  names = name_or_ary
  names = [name_or_ary] unless name_or_ary.is_a? Array
  names.each do |name|
    serialized_attributes << name
    field_klass = field_type.to_s.camelcase.constantize

    define_method(name) do
      self[name] = ActiveSupport::JSON.decode(self[name]) if !self[name].is_a?(field_klass) and self[name].is_a? String
      self[name]
    end

    define_method("#{name}=".to_sym) do |val|
      self[name] = val
    end

    define_method("#{name}_changed?".to_sym) do
      self.changed_attributes.has_key? name
    end

    define_method("#{name}_change".to_sym) do
      [self.changed_attributes[name], self[name]] if self.changed_attributes.has_key? name
    end

    define_method("#{name}_was".to_sym) do
      if self.changed_attributes.has_key? name
        self.changed_attributes[name]
      else
        self[name]
      end
    end
  end
end

#fields(*names) ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 140

def fields(*names)
  field names
end

#has_many(name, options = {}) ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 11

def has_many(name, options = {})
  raise "name must be plural" unless name.to_s == name.to_s.pluralize
  name_ids = "#{name.to_s.singularize}_ids".to_sym
  ignored_attributes << name
  serialized_attributes << name_ids

  define_method(name_ids) do
    if instance_variable_get("@#{name}_loaded".to_sym)
      self[name_ids] = self[name].collect(&:id)
      self[name] = nil
      instance_variable_set("@#{name}_loaded".to_sym, false)
    else
      if self[name_ids].nil?
        self[name_ids] = []
      else
        self[name_ids] = ActiveSupport::JSON.decode(self[name_ids]) if !self[name_ids].is_a?(Array) and self[name_ids].is_a? String
      end
    end
    self[name_ids]
  end

  define_method("#{name_ids}=".to_sym) do |val|
    self[name] = nil
    instance_variable_set("@#{name}_loaded".to_sym, false)

    if val.is_a? Content::Item
      self[name_ids] = [val.id.to_i] 
    elsif !val.is_a? Array
      self[name_ids] = [val.to_i]
    else
      self[name_ids] = val
    end
  end

  define_method(name) do
    ary = self[name]
    if ary.nil?
      self[name] = ary = (self.send(name_ids) || []).collect {|id| self.class.find(id.to_i) }
      instance_variable_set("@#{name}_loaded".to_sym, true)
      self[name_ids] = nil
    end
    ary
  end

  define_method("#{name}=".to_sym) do |val|
    if val.is_a? Array
      instance_variable_set("@#{name}_loaded".to_sym, true)
      self[name] = val
      self[name_ids] = nil
    elsif val.nil?
      instance_variable_set("@#{name}_loaded".to_sym, false)
      self[name] = nil
      self[name_ids] = nil
    end
  end

  define_method("#{name}_loaded".to_sym) do
    instance_variable_get("@#{name}_loaded".to_sym)
  end
end

#ignored_attributes ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 3

def ignored_attributes
  @ignored_attributes ||= []
end

#index(name, index_type = :lexical) ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 144

def index(name, index_type = :lexical)
  self.connection.set_index name, index_type
end

#serialized_attributes ⇒ Object 



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# File 'lib/content/item_association_class_methods.rb', line 7

def serialized_attributes
  @serialized_attributes ||= []
end