This document contains code for deleting data from a database table. The Twig template displays a table of flower data with edit and delete links. The DataController defines a delete route that finds the flower entity by ID, removes it from the entity manager, flushes to the database, and redirects back to the data page.

1. Delete data

2. Vederea data.html.twig
{% extends 'base.html.twig' %}
{% block body %}
<table>
<tr>
<th>Nume</th>
<th>Culoare</th>
<th>Marime</th>
<th>Pret</th>
<th colspan="3">Actions</th>
</tr>
{% for key in flowers %}
<tr>
<td>{{ key.nume }}</td>
<td>{{ key.culoare }}</td>
<td> {{ key.marime }}</td>
<td>{{ key.pret }}</td>
<td><a href="{{ app.request.baseUrl() }}/show/{{key.id}}">View</a>
<a href="{{ app.request.baseUrl() }}/edit/{{key.id}}">Edit</a>
<a href="{{ app.request.baseUrl() }}/delete/{{key.id}}" onclick="return confirm('Are you sure you want to delete this
item?');">Delete</a>
</td>
</tr>
{% endfor %}
</table>
<a href="{{ app.request.baseUrl() }}/data/add">Insert a record</a>
{% endblock %}

3. Controller-ul DataController
………………………………
/**
* @Route("/delete/{id}")
* @Method({"GET", "POST"})
*/
public function deleteAction($id){
$em=$this->getDoctrine()->getManager();
$flower = $this->getDoctrine()->
getRepository(Flower::class)->find($id);
$em->remove($flower);
$em->flush();
return $this->redirectToRoute('data');
}