SQLite: use AUTOINCREMENT primary key in >= 3.1.0. Closes #6588.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5477 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* SQLite: use AUTOINCREMENT primary key in >= 3.1.0.  #6588 [careo]
+
 * Cache inheritance_column.  #6592 [Stefan Kaes]
 
 * Firebird: decimal/numeric support.  #6408 [macrnic]

activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb

@@ -108,7 +108,7 @@ def supports_count_distinct? #:nodoc:
 
       def native_database_types #:nodoc:
         {
-          :primary_key => "INTEGER PRIMARY KEY NOT NULL",
+          :primary_key => default_primary_key_type,
           :string      => { :name => "varchar", :limit => 255 },
           :text        => { :name => "text" },
           :integer     => { :name => "integer" },
@@ -351,6 +351,14 @@ def catch_schema_changes
         def sqlite_version
           @sqlite_version ||= select_value('select sqlite_version(*)')
         end
+
+        def default_primary_key_type
+          if sqlite_version >= '3.1.0'
+            'INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL'.freeze
+          else
+            'INTEGER PRIMARY KEY NOT NULL'.freeze
+          end
+        end
     end
 
     class SQLite2Adapter < SQLiteAdapter # :nodoc:

activerecord/test/schema_dumper_test.rb

@@ -8,6 +8,7 @@ class SchemaDumperTest < Test::Unit::TestCase
     def standard_dump
       stream = StringIO.new
       ActiveRecord::SchemaDumper.ignore_tables = []
+      ActiveRecord::SchemaDumper.ignore_tables << /^sqlite_/ if current_adapter?(:SQLiteAdapter)
       ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, stream)
       stream.string
     end