1 files changed, 6 insertions, 15 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index ca6de37a6b..8b627a6d4d 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -117,15 +117,6 @@ module ActiveRecord
         true
       end
 
-      # Returns true, since this connection adapter supports migrations.
-      def supports_migrations? #:nodoc:
-        true
-      end
-
-      def supports_primary_key? #:nodoc:
-        true
-      end
-
       def requires_reloading?
         true
       end
@@ -167,10 +158,6 @@ module ActiveRecord
         true
       end
 
-      def valid_type?(type)
-        true
-      end
-
       # Returns 62. SQLite supports index names up to 64
       # characters. The rest is used by Rails internally to perform
       # temporary rename operations
@@ -424,11 +411,10 @@ module ActiveRecord
 
       def change_column(table_name, column_name, type, options = {}) #:nodoc:
         alter_table(table_name) do |definition|
-          include_default = options_include_default?(options)
           definition[column_name].instance_eval do
             self.type    = type
             self.limit   = options[:limit] if options.include?(:limit)
-            self.default = options[:default] if include_default
+            self.default = options[:default] if options.include?(:default)
             self.null    = options[:null] if options.include?(:null)
             self.precision = options[:precision] if options.include?(:precision)
             self.scale = options[:scale] if options.include?(:scale)
@@ -443,6 +429,11 @@ module ActiveRecord
         rename_column_indexes(table_name, column.name, new_column_name)
       end
 
+      def add_reference(table_name, ref_name, **options) # :nodoc:
+        super(table_name, ref_name, type: :integer, **options)
+      end
+      alias :add_belongs_to :add_reference
+
       def foreign_keys(table_name)
         fk_info = select_all("PRAGMA foreign_key_list(#{quote(table_name)})", "SCHEMA")
         fk_info.map do |row|