+
+ /**
+ * Check if username fits into db field
+ */
+ if (strlen($user) > $this->user_size) {
+ $this->error = "Oversized username value."
+ ." User's preferences can't be saved. See doc/db-backend.txt troubleshooting documentation.";
+
+ /**
+ * Debugging function. Can be used to log all issues that trigger
+ * oversized field errors. Function should be enabled in all three
+ * strlen checks. See http://www.php.net/error-log
+ */
+ // error_log($user.'|'.$key.'|'.$value."\n",3,'/tmp/oversized_log');
+
+ // error is fatal
+ $this->failQuery(null);
+ }
+ /**
+ * Check if preference key fits into db field
+ */
+ if (strlen($key) > $this->key_size) {
+ $err_msg = "Oversized user's preference key."
+ ." Some user preferences are not saved. See doc/db-backend.txt troubleshooting documentation.";
+ // error is not fatal. Only some preference is not saved.
+ trigger_error($err_msg,E_USER_WARNING);
+ return false;
+ }
+ /**
+ * Check if preference value fits into db field
+ */
+ if (strlen($value) > $this->val_size) {
+ $err_msg = "Oversized user's preference value."
+ ." Some user preferences are not saved. See doc/db-backend.txt troubleshooting documentation.";
+ // error is not fatal. Only some preference is not saved.
+ trigger_error($err_msg,E_USER_WARNING);
+ return false;
+ }
+
+