Module: Recommendable::ActsAsRecommendedTo::ClassMethods

Defined in:
lib/recommendable/acts_as_recommended_to.rb

Instance Method Summary collapse

Instance Method Details



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/recommendable/acts_as_recommended_to.rb', line 14

def acts_as_recommended_to
  class_eval do
    Recommendable.user_class = self
    
    has_many :likes, :class_name => "Recommendable::Like", :dependent => :destroy, :foreign_key => :user_id
    has_many :dislikes, :class_name => "Recommendable::Dislike", :dependent => :destroy, :foreign_key => :user_id
    has_many :ignores, :class_name => "Recommendable::Ignore", :dependent => :destroy, :foreign_key => :user_id
    has_many :stashed_items, :class_name => "Recommendable::Stash", :dependent => :destroy, :foreign_key => :user_id

    include LikeMethods
    include DislikeMethods
    include StashMethods
    include IgnoreMethods
    include RecommendationMethods
    include Hooks

    before_destroy :remove_from_similarities, :remove_recommendations

    # This is just until apotonick merges my change into his published gem. I promise.
    define_hook :before_like
    define_hook :after_like
    define_hook :before_unlike
    define_hook :after_unlike
    define_hook :before_dislike
    define_hook :after_dislike
    define_hook :before_undislike
    define_hook :after_undislike
    define_hook :before_stash
    define_hook :after_stash
    define_hook :before_unstash
    define_hook :after_unstash
    define_hook :before_ignore
    define_hook :after_ignore
    define_hook :before_unignore
    define_hook :after_unignore

    %w(like dislike ignore).each do |action|
      send "before_#{action}", lambda { |obj| completely_unrecommend obj }
    end

    %w(like unlike dislike undislike).each do |action|
      send "after_#{action}", lambda { |obj|
        obj.send(:update_score)
        obj.send "update_#{action.gsub('un', '')}_count"
        Recommendable.enqueue(self.id)
      }
    end
    
    before_stash { |obj| unignore(obj) and unpredict(obj) }

    def method_missing method, *args, &block
      if method.to_s =~ /^(liked|disliked)_(.+)_in_common_with$/
        begin
          super unless $2.classify.constantize.acts_as_recommendable?
          
          self.send "#{$1}_in_common_with", *args, { :class => $2.classify.constantize }
        rescue NameError
          super
        end
      elsif method.to_s =~ /^(liked|disliked|ignored|stashed|recommended)_(.+)$/
        begin
          super unless $2.classify.constantize.acts_as_recommendable?

          self.send "#{$1}_for", $2.classify.constantize, *args
        rescue NameError
          super
        end
      else
        super
      end
    end

    def respond_to? method, include_private = false
      if method.to_s =~ /^(liked|disliked|ignored|stashed|recommended)_(.+)$/ || method.to_s =~ /^common_(liked|disliked)_(.+)_with$/
        begin
          $2.classify.constantize.acts_as_recommendable?
        rescue NameError
          false
        end
      else
        super
      end
    end

    private :likes, :dislikes, :ignores, :stashed_items
  end
end

#recommends(*things) ⇒ Object 



9
10
11
12
 
# File 'lib/recommendable/acts_as_recommended_to.rb', line 9

def recommends *things
  acts_as_recommended_to
  things.each { |thing| thing.to_s.classify.constantize.acts_as_recommendable }
end