Reorganize project part 1

services/DatabaseService.php

@@ -0,0 +1,82 @@
+<?php
+
+class DatabaseService
+{
+	private static $DbConnectionRaw;
+	/**
+	 * @return PDO
+	 */
+	public static function GetDbConnectionRaw($doMigrations = false)
+	{
+		if ($doMigrations === true)
+		{
+			self::$DbConnectionRaw = null;
+		}
+
+		if (self::$DbConnectionRaw == null)
+		{
+			$pdo = new PDO('sqlite:' . __DIR__ . '/../data/grocy.db');
+			$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+			if ($doMigrations === true)
+			{
+				self::ExecuteDbStatement($pdo, "CREATE TABLE IF NOT EXISTS migrations (migration INTEGER NOT NULL PRIMARY KEY UNIQUE, execution_time_timestamp DATETIME DEFAULT (datetime('now', 'localtime')))");
+				GrocyDbMigrator::MigrateDb($pdo);
+
+				if (ApplicationService::IsDemoInstallation())
+				{
+					GrocyDemoDataGenerator::PopulateDemoData($pdo);
+				}
+			}
+
+			self::$DbConnectionRaw = $pdo;
+		}
+
+		return self::$DbConnectionRaw;
+	}
+
+	private static $DbConnection;
+	/**
+	 * @return LessQL\Database
+	 */
+	public static function GetDbConnection($doMigrations = false)
+	{
+		if ($doMigrations === true)
+		{
+			self::$DbConnection = null;
+		}
+
+		if (self::$DbConnection == null)
+		{
+			self::$DbConnection = new LessQL\Database(self::GetDbConnectionRaw($doMigrations));
+		}
+
+		return self::$DbConnection;
+	}
+
+	/**
+	 * @return boolean
+	 */
+	public static function ExecuteDbStatement(PDO $pdo, string $sql)
+	{
+		if ($pdo->exec($sql) === false)
+		{
+			throw new Exception($pdo->errorInfo());
+		}
+
+		return true;
+	}
+
+	/**
+	 * @return boolean|PDOStatement
+	 */
+	public static function ExecuteDbQuery(PDO $pdo, string $sql)
+	{
+		if (self::ExecuteDbStatement($pdo, $sql) === true)
+		{
+			return $pdo->query($sql);
+		}
+
+		return false;
+	}
+}