Module: Redis::Relations::BelongsTo

Defined in:
lib/redis/relations/belongs_to.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 32

def self.included(base)
  base.class_eval do
    add_relation :belongs_to
    
    class << self
      def belongs_to(relation_name, options = {})
        belongs_to_relations[relation_name] = options.reverse_merge({ :relation => relation_name })
      
        define_method relation_name do
          get_belongs_to_reference(relation_name)
        end
      
        define_method "#{relation_name}=" do |a|
          set_belongs_to_reference(relation_name, a)
        end
      end
    end
  end
end

Instance Method Details

#belongs_to_references ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 2

def belongs_to_references
  @belongs_to_references ||= {}
end

#belongs_to_relation_id(name) ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 19

def belongs_to_relation_id(name)
  File.join("references", belongs_to_relations[name][:relation].to_s)
end

#get_belongs_to_reference(name) ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 10

def get_belongs_to_reference(name)
  if belongs_to_references.key?(name)
    belongs_to_references[name]
  else
    result = self.class.find(connection.hget(belongs_to_relation_id(name), id))
    belongs_to_references[name] = result
  end
end

#save_belongs_to_references ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 23

def save_belongs_to_references
  belongs_to_references.each do |relation_name, reference|
    if reference
      reference = reference.id
    end
    connection.hset(belongs_to_relation_id(relation_name), id, reference)
  end
end

#set_belongs_to_reference(name, a) ⇒ Object 



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# File 'lib/redis/relations/belongs_to.rb', line 6

def set_belongs_to_reference(name, a)
  belongs_to_references[name] = a
end