Initial plugin commit

includes/Repositories/AbstractRepository.php

@@ -0,0 +1,98 @@
+<?php
+/**
+ * Shared repository helpers.
+ *
+ * @package KGV\VereinManager
+ */
+
+namespace KGV\VereinManager\Repositories;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+abstract class AbstractRepository {
+
+	/**
+	 * WordPress database object.
+	 *
+	 * @var \wpdb
+	 */
+	protected $wpdb;
+
+	/**
+	 * Concrete table name.
+	 *
+	 * @var string
+	 */
+	protected $table = '';
+
+	/**
+	 * Build repository instance.
+	 */
+	public function __construct() {
+		global $wpdb;
+
+		$this->wpdb  = $wpdb;
+		$this->table = $this->resolve_table();
+	}
+
+	/**
+	 * Resolve table name in child class.
+	 *
+	 * @return string
+	 */
+	abstract protected function resolve_table();
+
+	/**
+	 * Find a single row by ID.
+	 *
+	 * @param int $id Record ID.
+	 * @return object|null
+	 */
+	public function find( $id ) {
+		return $this->wpdb->get_row( $this->wpdb->prepare( "SELECT * FROM {$this->table} WHERE id = %d", absint( $id ) ) ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
+	}
+
+	/**
+	 * Delete a record.
+	 *
+	 * @param int $id Record ID.
+	 * @return bool
+	 */
+	public function delete( $id ) {
+		$result = $this->wpdb->delete( $this->table, array( 'id' => absint( $id ) ), array( '%d' ) );
+		return false !== $result;
+	}
+
+	/**
+	 * Current local datetime.
+	 *
+	 * @return string
+	 */
+	protected function now() {
+		return current_time( 'mysql' );
+	}
+
+	/**
+	 * Restrict sortable columns.
+	 *
+	 * @param string $orderby Requested column.
+	 * @param array  $allowed Allowed columns.
+	 * @param string $default Default column.
+	 * @return string
+	 */
+	protected function sanitize_orderby( $orderby, $allowed, $default ) {
+		return in_array( $orderby, $allowed, true ) ? $orderby : $default;
+	}
+
+	/**
+	 * Restrict sort direction.
+	 *
+	 * @param string $order Requested order.
+	 * @return string
+	 */
+	protected function sanitize_order( $order ) {
+		return 'ASC' === strtoupper( (string) $order ) ? 'ASC' : 'DESC';
+	}
+}