Merge a212873 into 50cf95b

README.md

@@ -166,7 +166,16 @@ class Employee < ActiveRecord::Base
 end
 ```
 
+## Update Trigram index using `sidekiq-delay`
 
+For larger text, it takes time to build the index. Thus it can be moved into delay task using `sidekiq` + `sidekiq-delay` or `delayed_job` gem, both of them provide the method `delay` to move the execution to background thread by adding option `async`:
+
+```ruby
+class Employee < ActiveRecord::Base
+  fuzzily_searchable :name, async: true
+
+end
+```
 
 ## License
 

lib/fuzzily/searchable.rb

@@ -112,7 +112,8 @@ def make_field_fuzzily_searchable(field, options={})
           :field                  => field,
           :trigram_class_name     => options.fetch(:class_name, 'Trigram'),
           :trigram_association    => "trigrams_for_#{field}".to_sym,
-          :update_trigrams_method => "update_fuzzy_#{field}!".to_sym
+          :update_trigrams_method => "update_fuzzy_#{field}!".to_sym,
+          :async                  => options.fetch(:async, false)
         )
 
         _add_trigram_association(_o)
@@ -126,11 +127,16 @@ def make_field_fuzzily_searchable(field, options={})
         end
 
         define_method _o.update_trigrams_method do
-          _update_fuzzy!(_o)
+          if _o.async && self.respond_to?(:delay)
+            self.delay._update_fuzzy!(_o)
+          else
+            _update_fuzzy!(_o)
+          end
         end
 
         after_save do |record|
           next unless record.send("#{field}_changed?".to_sym)
+
           record.send(_o.update_trigrams_method)
         end