Update references link

maghead · Jan 19, 2016 · 07a0396 · 07a0396
1 parent f7ae30b
commit 07a0396
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/LazyRecord/SqlBuilder/MysqlBuilder.php b/src/LazyRecord/SqlBuilder/MysqlBuilder.php
@@ -51,6 +51,10 @@ public function buildColumnSql(SchemaInterface $schema, DeclareColumn $column)
 
 
         FOREIGN KEY (`order_uuid`) REFERENCES orders(`uuid`)
+
+
+        A column with foreign key should not be nullable.
+        @see http://stackoverflow.com/questions/10028214/add-foreign-key-to-existing-table
         */
         foreach( $schema->relations as $rel ) {
             switch( $rel['type'] ) {