Class: SimpleMaster::Master::Association::BelongsToAssociation

Inherits:
SimpleMaster::Master::Association show all
Defined in:
lib/simple_master/master/association/belongs_to_association.rb

Instance Attribute Summary

Attributes inherited from SimpleMaster::Master::Association

#defined_at, #name, #options

Instance Method Summary collapse

Methods inherited from SimpleMaster::Master::Association

#initialize, #is_active_record?, #target_class

Constructor Details

This class inherits a constructor from SimpleMaster::Master::Association

Instance Method Details

#foreign_key ⇒ Object 



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# File 'lib/simple_master/master/association/belongs_to_association.rb', line 7

def foreign_key
  @foreign_key ||= (options[:foreign_key] || ActiveSupport::Inflector.foreign_key(name)).to_sym
end

#init(master_class) ⇒ Object 



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# File 'lib/simple_master/master/association/belongs_to_association.rb', line 15

def init(master_class)
  master_class.simple_master_module.class_eval <<-RUBY, __FILE__, __LINE__ + 1
    if #{target_class} < SimpleMaster::Master
      def #{name}
        return nil unless #{foreign_key}

        #{search_code}
      end
    else
      def #{name}
        return nil unless #{foreign_key}

        belongs_to_store[:#{name}] ||= #{target_class}.simple_master_connection.find_by_#{primary_key}(#{foreign_key})
      end
    end
  RUBY
end

#init_for_test(master_class) ⇒ Object 



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# File 'lib/simple_master/master/association/belongs_to_association.rb', line 33

def init_for_test(master_class)
  master_class.simple_master_module.class_eval <<-RUBY, __FILE__, __LINE__ + 1
    if #{target_class} < SimpleMaster::Master
      def #{name}
        return belongs_to_store[:#{name}] if belongs_to_store[:#{name}]
        return nil unless #{foreign_key}

        #{search_code}
      end
    else
      def #{name}
        return nil unless #{foreign_key}

        belongs_to_store[:#{name}] ||= #{target_class}.simple_master_connection.find_by_#{primary_key}(#{foreign_key})
      end
    end

    def #{name}=(value)
      @_association_#{name}_source = self.#{foreign_key} = value&.#{primary_key}
      belongs_to_store[:#{name}] = value
    end

    def _#{name}_target_save?
      # Skip saving the association if the key changed after assignment
      return false if @_association_#{name}_source != #{foreign_key}

      target = belongs_to_store[:#{name}]
      return false if target.nil?

      true
    end
  RUBY
end

#primary_key ⇒ Object 



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# File 'lib/simple_master/master/association/belongs_to_association.rb', line 11

def primary_key
  @primary_key ||= options[:primary_key] || target_class.primary_key || :id
end