services/api/db/migrate/20161213172944_full_text_search_indexes.rb

   1 class FullTextSearchIndexes < ActiveRecord::Migration
   2   def fts_indexes
   3     {
   4       "collections" => "collections_full_text_search_idx",
   5       "container_requests" => "container_requests_full_text_search_idx",
   6       "groups" => "groups_full_text_search_idx",
   7       "jobs" => "jobs_full_text_search_idx",
   8       "pipeline_instances" => "pipeline_instances_full_text_search_idx",
   9       "pipeline_templates" => "pipeline_templates_full_text_search_idx",
  10       "workflows" => "workflows_full_text_search_idx",
  11     }
  12   end
  13
  14   def up
  15     # remove existing fts indexes and create up to date ones with no leading space
  16     fts_indexes.each do |t, i|
  17       ActiveRecord::Base.connection.indexes(t).each do |idx|
  18         if idx.name == i
  19           remove_index t.to_sym, :name => i
  20           break
  21         end
  22       end
  23       execute "CREATE INDEX #{i} ON #{t} USING gin(#{t.classify.constantize.full_text_tsvector});"
  24     end
  25   end
  26
  27   def down
  28     fts_indexes.each do |t, i|
  29       remove_index t.to_sym, :name => i
  30     end
  31   end
  32 end