admin login is now unique

install/thelia.sql

@@ -984,6 +984,7 @@ CREATE TABLE `admin`
     `created_at` DATETIME,
     `updated_at` DATETIME,
     PRIMARY KEY (`id`),
+    UNIQUE INDEX `login_UNIQUE` (`login`),
     INDEX `idx_admin_profile_id` (`profile_id`),
     CONSTRAINT `fk_admin_profile_id`
         FOREIGN KEY (`profile_id`)

local/config/schema.xml

@@ -771,6 +771,9 @@
     <index name="idx_admin_profile_id">
       <index-column name="profile_id" />
     </index>
+    <unique name="login_UNIQUE">
+      <unique-column name="login" />
+    </unique>
     <behavior name="timestampable" />
   </table>
   <table isCrossRef="true" name="profile_resource" namespace="Thelia\Model">