php - Symfony2, Doctrine2 update row without ID (this table is with only "one" row) -


i want create entity settings, have basic editable information page. i've created entity settings.php source:

<?php namespace acme\settingsbundle\entity;  use doctrine\orm\mapping orm;  /**  * @orm\entity()  * @orm\table(name="settings")   */  class settings {         /**      * @orm\column(type="string", length=100)      */      protected $page_name;      /**      * @orm\column(type="string", length=100)      */     protected $page_description;      /**      * @orm\column(type="string", length=100)      */     protected $page_email;                   }

and not know, how tell in controller overwriting existing data, not creating new. controller admincontroller.php

public function indexaction(request $request) {     if (false === $this->get('security.context')->isgranted('role_admin')) {         throw new accessdeniedexception();     }      $settings = new settings();      $form = $this->createform('settings', $settings);     $form->handlerequest($request);       if($form->isvalid())     {         $em = $this->getdoctrine()->getmanager();         $em->persist($settings);          try {             $em->flush();         } catch (\pdoexception $e) {             // sth         }         $this->get('session')->getflashbag()->add(             'success',             'settings successfuly changed'         );     }      return $this->render('acmesettingsbundle:admin:index.html.twig', array('form' => $form)); }

i didn't test it, believe, creates new settings object new data. help?

you should set field act id, if meant dummy.

assign default value use , should able update settings no problem.

usually, dbms wars absence of unique identifier same applies doctrine.

$settings = new settings(); $settings->setid(settings::dummy_identifier); // const within class  # rest of logic # .... $em = $this->getdoctrine()->getmanager(); $em->persist($settings);  try {     $em->flush(); } catch (\pdoexception $e) { }

you take approach: persist every property single row. however, need build more complex form type , execute more queries.

edit:

you use raw sql less flexible:

# raw query $sql = "update settings set page_name = ?, page_description = ?, page_email = ?";  # data $params = array( $settings->getpagename(), $settings->getpagedesc(), $settings->getpageemail());  # must specify type due protection against sql injection $types = array(\pdo::param_str,\pdo::param_str,\pdo::param_str);  # execute $stmt = $this->getentitymanager()->getconnection()->executeupdate($sql, $params, $types);

http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/data-retrieval-and-manipulation.html#using-prepared-statements


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