1 files changed, 13 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index 0493ab4e4b..a7c4a2cd86 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -3,6 +3,8 @@ require "active_record/connection_adapters/statement_pool"
 require "active_record/connection_adapters/sqlite3/explain_pretty_printer"
 require "active_record/connection_adapters/sqlite3/quoting"
 require "active_record/connection_adapters/sqlite3/schema_creation"
+require "active_record/connection_adapters/sqlite3/schema_definitions"
+require "active_record/connection_adapters/sqlite3/schema_dumper"
 
 gem "sqlite3", "~> 1.3.6"
 require "sqlite3"
@@ -52,6 +54,7 @@ module ActiveRecord
       ADAPTER_NAME = "SQLite".freeze
 
       include SQLite3::Quoting
+      include SQLite3::ColumnDumper
 
       NATIVE_DATABASE_TYPES = {
         primary_key:  "INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL",
@@ -75,6 +78,10 @@ module ActiveRecord
           end
       end
 
+      def update_table_definition(table_name, base) # :nodoc:
+        SQLite3::Table.new(table_name, base)
+      end
+
       def schema_creation # :nodoc:
         SQLite3::SchemaCreation.new self
       end
@@ -523,6 +530,8 @@ module ActiveRecord
           #   column *column_name* is not unique
           when /column(s)? .* (is|are) not unique/, /UNIQUE constraint failed: .*/
             RecordNotUnique.new(message)
+          when /.* may not be NULL/, /NOT NULL constraint failed: .*/
+            NotNullViolation.new(message)
           else
             super
           end
@@ -569,6 +578,10 @@ module ActiveRecord
             basic_structure.to_hash
           end
         end
+
+        def create_table_definition(*args)
+          SQLite3::TableDefinition.new(*args)
+        end
     end
   end
 end