avoiding the database randomization function

Pius Uzamere
1 parent 3105fb29
Showing 1 changed file with 5 additions and 3 deletions Show diff stats
app/models/question.rb
@@ -34,10 +34,12 @@ class Question &lt; ActiveRecord::Base
    memoize :picked_prompt
  
    def distinct_array_of_choice_ids(rank = 2, only_active = true)
+     @choice_ids = choice_ids
+     @s = @choice_ids.size
      begin
-       @the_choice_ids = Set.new
-       @the_choice_ids << choices.active.first(:order => 'RAND()', :select => 'id').id
-       @the_choice_ids << choices.active.last(:order => 'RAND()', :select => 'id').id
+       @the_choice_ids = Set.new(@choice_ids.values_at(rand(@s), rand(@s)))
+       # @the_choice_ids << choices.active.first(:order => 'RAND()', :select => 'id').id
+       # @the_choice_ids << choices.active.last(:order => 'RAND()', :select => 'id').id
      end until @the_choice_ids.size == rank
      logger.info "set populated and looks like #{@the_choice_ids.inspect}"
      return @the_choice_ids.to_a
...	...	@@ -34,10 +34,12 @@ class Question < ActiveRecord::Base
34	34	memoize :picked_prompt
35	35
36	36	def distinct_array_of_choice_ids(rank = 2, only_active = true)
	37	+ @choice_ids = choice_ids
	38	+ @s = @choice_ids.size
37	39	begin
38		- @the_choice_ids = Set.new
39		- @the_choice_ids << choices.active.first(:order => 'RAND()', :select => 'id').id
40		- @the_choice_ids << choices.active.last(:order => 'RAND()', :select => 'id').id
	40	+ @the_choice_ids = Set.new(@choice_ids.values_at(rand(@s), rand(@s)))
	41	+ # @the_choice_ids << choices.active.first(:order => 'RAND()', :select => 'id').id
	42	+ # @the_choice_ids << choices.active.last(:order => 'RAND()', :select => 'id').id
41	43	end until @the_choice_ids.size == rank
42	44	logger.info "set populated and looks like #{@the_choice_ids.inspect}"
43	45	return @the_choice_ids.to_a
...	...