Adds compatibility with SQLite < 3.7.11

lib/fuzzily/searchable.rb

@@ -16,9 +16,10 @@ def fuzzily_searchable(*fields)
     def make_field_fuzzily_searchable(field, options={})
       class_variable_defined?(:"@@fuzzily_searchable_#{field}") and return
 
-      trigram_class_name = options.fetch(:class_name, 'Trigram')
-      trigram_association = "trigrams_for_#{field}".to_sym
+      trigram_class_name     = options.fetch(:class_name, 'Trigram')
+      trigram_association    = "trigrams_for_#{field}".to_sym
       update_trigrams_method = "update_fuzzy_#{field}!".to_sym
+      batch_size             = fuzzily_batch_size
 
       has_many trigram_association,
         :class_name => trigram_class_name,
@@ -46,7 +47,7 @@ def make_field_fuzzily_searchable(field, options={})
       singleton_class.send(:define_method,"bulk_update_fuzzy_#{field}".to_sym) do
         trigram_class = trigram_class_name.constantize
 
-        self.scoped(:include => trigram_association).find_in_batches(:batch_size => 100) do |batch|
+        self.scoped(:include => trigram_association).find_in_batches(:batch_size => batch_size) do |batch|
           inserts = []
           batch.each do |record|
             data = Fuzzily::String.new(record.send(field))
@@ -92,5 +93,14 @@ def make_field_fuzzily_searchable(field, options={})
       self
     end
 
+    def fuzzily_batch_size
+      if connection.kind_of?(ActiveRecord::ConnectionAdapters::SQLiteAdapter) &&
+        connection.send(:sqlite_version) < '3.7.11'
+        1
+      else
+        100
+      end
+    end
+
   end
 end