trying to implement database backend

lib/Controller/StationApiController.php

@@ -0,0 +1,80 @@
+<?php
+
+namespace OCA\Radio\Controller;
+
+use OCA\Radio\AppInfo\Application;
+use OCA\Radio\Service\StationService;
+use OCP\AppFramework\ApiController;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\IRequest;
+
+class StationApiController extends ApiController {
+	/** @var StationService */
+	private $service;
+
+	/** @var string */
+	private $userId;
+
+	use Errors;
+
+	public function __construct(IRequest $request,
+								StationService $service,
+								$userId) {
+		parent::__construct(Application::APP_ID, $request);
+		$this->service = $service;
+		$this->userId = $userId;
+	}
+
+	/**
+	 * @CORS
+	 * @NoCSRFRequired
+	 * @NoAdminRequired
+	 */
+	public function index(): DataResponse {
+		return new DataResponse($this->service->findAll($this->userId));
+	}
+
+	/**
+	 * @CORS
+	 * @NoCSRFRequired
+	 * @NoAdminRequired
+	 */
+	public function show(int $id): DataResponse {
+		return $this->handleNotFound(function () use ($id) {
+			return $this->service->find($id, $this->userId);
+		});
+	}
+
+	/**
+	 * @CORS
+	 * @NoCSRFRequired
+	 * @NoAdminRequired
+	 */
+	public function create(string $title, string $content): DataResponse {
+		return new DataResponse($this->service->create($title, $content,
+			$this->userId));
+	}
+
+	/**
+	 * @CORS
+	 * @NoCSRFRequired
+	 * @NoAdminRequired
+	 */
+	public function update(int $id, string $title,
+						   string $content): DataResponse {
+		return $this->handleNotFound(function () use ($id, $title, $content) {
+			return $this->service->update($id, $title, $content, $this->userId);
+		});
+	}
+
+	/**
+	 * @CORS
+	 * @NoCSRFRequired
+	 * @NoAdminRequired
+	 */
+	public function destroy(int $id): DataResponse {
+		return $this->handleNotFound(function () use ($id) {
+			return $this->service->delete($id, $this->userId);
+		});
+	}
+}

lib/Controller/StationController.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace OCA\Radio\Controller;
+
+use OCA\Radio\AppInfo\Application;
+use OCA\Radio\Service\RadioService;
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\IRequest;
+
+class RadioController extends Controller {
+	/** @var RadioService */
+	private $service;
+
+	/** @var string */
+	private $userId;
+
+	use Errors;
+
+	public function __construct(IRequest $request,
+								RadioService $service,
+								$userId) {
+		parent::__construct(Application::APP_ID, $request);
+		$this->service = $service;
+		$this->userId = $userId;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	public function index(): DataResponse {
+		return new DataResponse($this->service->findAll($this->userId));
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	public function show(int $id): DataResponse {
+		return $this->handleNotFound(function () use ($id) {
+			return $this->service->find($id, $this->userId);
+		});
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	public function create(string $title, string $content): DataResponse {
+		return new DataResponse($this->service->create($title, $content,
+			$this->userId));
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	public function update(int $id, string $title,
+						   string $content): DataResponse {
+		return $this->handleNotFound(function () use ($id, $title, $content) {
+			return $this->service->update($id, $title, $content, $this->userId);
+		});
+	}
+
+	/**
+	 * @NoAdminRequired
+	 */
+	public function destroy(int $id): DataResponse {
+		return $this->handleNotFound(function () use ($id) {
+			return $this->service->delete($id, $this->userId);
+		});
+	}
+}

lib/Db/Station.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace OCA\Radio\Db;
+
+use JsonSerializable;
+
+use OCP\AppFramework\Db\Entity;
+
+class Station extends Entity implements JsonSerializable {
+	protected $title;
+	protected $content;
+	protected $userId;
+
+	public function jsonSerialize(): array {
+		return [
+			'id' => $this->id,
+			'title' => $this->title,
+			'content' => $this->content
+		];
+	}
+}

lib/Db/StationMapper.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace OCA\Radio\Db;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\Entity;
+use OCP\AppFramework\Db\QBMapper;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+
+class StationMapper extends QBMapper {
+	public function __construct(IDBConnection $db) {
+		parent::__construct($db, 'radio', Station::class);
+	}
+
+	/**
+	 * @param int $id
+	 * @param string $userId
+	 * @return Entity|Station
+	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
+	 * @throws DoesNotExistException
+	 */
+	public function find(int $id, string $userId): Station {
+		/* @var $qb IQueryBuilder */
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from('radio')
+			->where($qb->expr()->eq('id', $qb->createNamedParameter($id, IQueryBuilder::PARAM_INT)))
+			->andWhere($qb->expr()->eq('user_id', $qb->createNamedParameter($userId)));
+		return $this->findEntity($qb);
+	}
+
+	/**
+	 * @param string $userId
+	 * @return array
+	 */
+	public function findAll(string $userId): array {
+		/* @var $qb IQueryBuilder */
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from('radio')
+			->where($qb->expr()->eq('user_id', $qb->createNamedParameter($userId)));
+		return $this->findEntities($qb);
+	}
+}

lib/Service/StationNotFound.php

@@ -0,0 +1,6 @@
+<?php
+
+namespace OCA\Radio\Service;
+
+class StationNotFound extends \Exception {
+}

lib/Service/StationService.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\Radio\Migration;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\SimpleMigrationStep;
+use OCP\Migration\IOutput;
+
+class Version000000Date20181013124731 extends SimpleMigrationStep {
+
+	/**
+	 * @param IOutput $output
+	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 * @return null|ISchemaWrapper
+	 */
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options) {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		if (!$schema->hasTable('radio')) {
+			$table = $schema->createTable('radio');
+			$table->addColumn('id', 'integer', [
+				'autoincrement' => true,
+				'notnull' => true,
+			]);
+			$table->addColumn('title', 'string', [
+				'notnull' => true,
+				'length' => 200
+			]);
+			$table->addColumn('user_id', 'string', [
+				'notnull' => true,
+				'length' => 200,
+			]);
+			$table->addColumn('content', 'text', [
+				'notnull' => true,
+				'default' => ''
+			]);
+
+			$table->setPrimaryKey(['id']);
+			$table->addIndex(['user_id'], 'radio_user_id_index');
+		}
+		return $schema;
+	}
+}