Module: Emotions::Emotional::ClassMethods

Defined in:
lib/emotions/emotional.rb

Instance Method Summary collapse

Instance Method Details

#define_emotion_methods(emotion) ⇒ Object 



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# File 'lib/emotions/emotional.rb', line 77

def define_emotion_methods(emotion)
  class_eval <<-RUBY, __FILE__, __LINE__ + 1
    def #{emotion}_about?(emotive)
      !!#{emotion}_about(emotive).exists?
    end

    def #{emotion}_about!(emotive)
      express! #{emotion.inspect}, emotive
    end

    def no_longer_#{emotion}_about!(emotive)
      no_longer_express! #{emotion.inspect}, emotive
    end

    def #{emotion}_about(emotive)
      _emotions_about(emotive).where(emotion: #{emotion.to_s.inspect})
    end

    alias #{emotion}? #{emotion}_about?
    alias #{emotion}_with? #{emotion}_about?
    alias #{emotion}_over? #{emotion}_about?

    alias #{emotion}_with! #{emotion}_about!
    alias #{emotion}_over! #{emotion}_about!

    alias no_longer_#{emotion}_with! no_longer_#{emotion}_about!
    alias no_longer_#{emotion}_over! no_longer_#{emotion}_about!

    alias #{emotion}_with #{emotion}_about
    alias #{emotion}_over #{emotion}_about
  RUBY

  instance_eval <<-RUBY, __FILE__, __LINE__ + 1
    def #{emotion}_about(emotive)
      emotional_about(#{emotion.inspect}, emotive)
    end

    alias #{emotion}_with #{emotion}_about
    alias #{emotion}_over #{emotion}_about
  RUBY
end

#emotional_about(emotion, emotive) ⇒ Object

Return an ‘ActiveRecord::Relation` containing the emotional records that expressed a specific emotion towards an emotive record

Examples:

user = User.first
picture = Picture.first
user.express! :happy, picture
User.emotional_about(:happy, picture)
# => #<ActiveRecord::Relation [#<User id=1>]>


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# File 'lib/emotions/emotional.rb', line 67

def emotional_about(emotion, emotive)
  if emotive.class.emotive?
    emotional_ids = emotive.emotions.where(emotion: emotion).where(emotional_type: self.name).pluck(:emotional_id)
    where(id: emotional_ids)
  else
    # ActiveRecord 4 supports `.none`, not ActiveRecord 3
    respond_to?(:none) ? none : where('1 = 0')
  end
end