Add support, custom, and other queries

src/Definition.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types=1);
+
+namespace BitBadger\PDODocument;
+
+use PDO;
+
+/**
+ * Functions to create tables and indexes
+ */
+class Definition
+{
+    /**
+     * Ensure a document table exists
+     *
+     * @param string $name The name of the table to be created if it does not exist
+     * @param PDO|null $pdo The database connection to use (optional; will obtain one if not provided)
+     * @throws DocumentException If any is encountered
+     */
+    public static function ensureTable(string $name, ?PDO $pdo = null): void
+    {
+        Custom::nonQuery(Query\Definition::ensureTable($name), [], $pdo);
+        Custom::nonQuery(Query\Definition::ensureKey($name),   [], $pdo);
+    }
+
+    /**
+     * Ensure a field index exists on a document table
+     *
+     * @param string $tableName The name of the table which should be indexed
+     * @param string $indexName The name of the index
+     * @param array $fields Fields which should be a part of this index
+     * @param PDO|null $pdo The database connection to use (optional; will obtain one if not provided)
+     * @throws DocumentException If any is encountered
+     */
+    public static function ensureFieldIndex(string $tableName, string $indexName, array $fields, ?PDO $pdo = null): void
+    {
+        Custom::nonQuery(Query\Definition::ensureIndexOn($tableName, $indexName, $fields), [], $pdo);
+    }
+}