collection-crud/src/Controller/FormControllerTrait.php

<?php declare(strict_types=1);

namespace App\Controller;

use Doctrine\Persistence\ManagerRegistry;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\HttpFoundation\{Request, Response, RedirectResponse};

trait FormControllerTrait {
	private readonly ManagerRegistry $managerRegistry;

	/**
	 * Create a form generator
	 */
	protected function buildForm($item, string $actionRoute, string $method = 'POST'): FormInterface
	{
		return $this->createFormBuilder()
			->setAction($this->generateUrl($actionRoute, ['id' => $item->getId()]))
			->setMethod($method)
			->getForm();
	}

	/**
	 * Show create form / create an item
	 */
	protected function itemCreate(Request $request, string $template, string $templateKey, string $redirectRoute)
	{
		$Entity = self::ENTITY;
		$item = new $Entity;
		$form = $this->createForm(self::FORM, $item);
		$form->handleRequest($request);

		// If creating the item
		if ($form->isSubmitted() && $form->isValid())
		{
			$em = $this->getDoctrine()->getManager();
			$em->persist($item);
			$em->flush();

			return $this->redirectToRoute($redirectRoute, ['id' => $item->getId()]);
		}

		// If showing the form
		return $this->render($template, [
			$templateKey => $item,
			'form' => $form->createView(),
		]);
	}

	/**
	 * List view for the data type
	 */
	protected function itemListView(string $template, string $templateKey, array $sort = []): Response
	{
		$em = $this->managerRegistry->getManager();

		$items = $em->getRepository(self::ENTITY)->findBy([], $sort);

		return $this->render($template, [
			$templateKey => $items,
		]);
	}

	/**
	 * View details for a specific item
	 */
	protected function itemView($item, string $template, string $templateKey): Response
	{
		$templateData = [
			$templateKey => $item,
		];

		if (method_exists($this, 'createDeleteForm')) {
			$deleteForm = $this->createDeleteForm($item);
			$templateData['delete_form'] = $deleteForm->createView();
		}

		return $this->render($template, $templateData);
	}

	/**
	 * Show edit form / update an item
	 */
	protected function itemUpdate(Request $request, $item, string $template, string $templateKey, string $redirectRoute)
	{
		$editForm = $this->createForm(self::FORM, $item);
		$editForm->handleRequest($request);

		// If updating the item
		if ($editForm->isSubmitted() && $editForm->isValid())
		{
			$em = $this->getDoctrine()->getManager();
			$em->persist($item);
			$em->flush();

			return $this->redirectToRoute($redirectRoute, ['id' => $item->getId()]);
		}

		// If showing the edit form
		$templateData = [
			$templateKey => $item,
			'edit_form' => $editForm->createView(),
		];

		if (method_exists($this, 'createDeleteForm'))
		{
			$deleteForm = $this->createDeleteForm($item);
			$templateData['delete_form'] = $deleteForm->createView();
		}

		if (method_exists($this, 'createDeacquireForm'))
		{
			$deacquireForm = $this->createDeacquireForm($item);
			$templateData['deacquire_form'] = $deacquireForm->createView();
		}

		if (method_exists($this, 'createReacquireForm'))
		{
			$reacquireForm = $this->createReacquireForm($item);
			$templateData['reacquire_form'] = $reacquireForm->createView();
		}

		return $this->render($template, $templateData);
	}

	/**
	 * Move an item to a previously_owned table
	 */
	protected function itemDeacquire(Request $request, $item, string $redirectRoute): RedirectResponse
	{
		$form = $this->createDeacquireForm($item);
		$form->handleRequest($request);

		$repository = $this->getDoctrine()->getRepository(self::ENTITY);
		$repository->deacquire($item);

		return $this->redirectToRoute($redirectRoute);
	}

	/**
	 * Move an item from a previously_owned table back to the original table
	 */
	protected function itemReacquire(Request $request, $item, string $redirectRoute): RedirectResponse
	{
		$form = $this->createReacquireForm($item);
		$form->handleRequest($request);

		$repository = $this->getDoctrine()->getRepository(self::ENTITY);
		$repository->reacquire($item);

		return $this->redirectToRoute($redirectRoute);
	}

	/**
	 * Actually delete an item
	 */
	protected function itemDelete(Request $request, $item, string $redirectRoute): RedirectResponse
	{
		$form = $this->createDeleteForm($item);
		$form->handleRequest($request);

		// if ($form->isSubmitted() && $form->isValid())
		{
			$em = $this->getDoctrine()->getManager();
			$em->remove($item);
			$em->flush();
		}

		return $this->redirectToRoute($redirectRoute);
	}
}