Make name column UNIQUE.

Author: john-shaffer

src/Controller.php

@@ -73,7 +73,7 @@ public static function seedOptions() : void {
         $table_name = $wpdb->prefix . 'wp2static_addon_s3_options';
 
         $query_string =
-            "INSERT INTO $table_name (name, value, label, description) VALUES (%s, %s, %s, %s);";
+            "INSERT IGNORE INTO $table_name (name, value, label, description) VALUES (%s, %s, %s, %s);";
 
         $query = $wpdb->prepare(
             $query_string,
@@ -268,7 +268,7 @@ public static function activate_for_single_site() : void {
 
         $sql = "CREATE TABLE $table_name (
             id mediumint(9) NOT NULL AUTO_INCREMENT,
-            name VARCHAR(255) NOT NULL,
+            name VARCHAR(255) NOT NULL UNIQUE,
             value VARCHAR(255) NOT NULL,
             label VARCHAR(255) NULL,
             description VARCHAR(255) NULL,