General improvements

GrocyDbMigrator.php

@@ -0,0 +1,79 @@
+<?php
+
+class GrocyDbMigrator
+{
+	public static function MigrateDb(PDO $pdo)
+	{
+		self::ExecuteMigrationWhenNeeded($pdo, 1, "
+			CREATE TABLE products (
+				id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+				name TEXT NOT NULL UNIQUE,
+				description TEXT,
+				location_id INTEGER NOT NULL,
+				qu_id_purchase INTEGER NOT NULL,
+				qu_id_stock INTEGER NOT NULL,
+				qu_factor_purchase_to_stock REAL NOT NULL,
+				barcode TEXT UNIQUE,
+				created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+			)"
+		);
+
+		self::ExecuteMigrationWhenNeeded($pdo, 2, "
+			CREATE TABLE locations (
+				id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+				name TEXT NOT NULL UNIQUE,
+				description TEXT,
+				created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+			)"
+		);
+
+		self::ExecuteMigrationWhenNeeded($pdo, 3, "
+			CREATE TABLE quantity_units (
+				id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+				name TEXT NOT NULL UNIQUE,
+				description TEXT,
+				created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+			)"
+		);
+
+		self::ExecuteMigrationWhenNeeded($pdo, 4, "
+			CREATE TABLE stock (
+				id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+				product_id INTEGER NOT NULL,
+				amount INTEGER NOT NULL,
+				best_before_date DATE,
+				purchased_date DATE DEFAULT (datetime('now', 'localtime')),
+				stock_id TEXT NOT NULL
+			)"
+		);
+
+		self::ExecuteMigrationWhenNeeded($pdo, 5, "
+			CREATE TABLE consumptions (
+				id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+				product_id INTEGER NOT NULL,
+				amount INTEGER NOT NULL,
+				best_before_date DATE,
+				purchased_date DATE,
+				used_date DATE DEFAULT (datetime('now', 'localtime')),
+				spoiled INTEGER NOT NULL DEFAULT 0,
+				stock_id TEXT NOT NULL
+			)"
+		);
+
+		self::ExecuteMigrationWhenNeeded($pdo, 6, "
+			INSERT INTO locations (name, description) VALUES ('DefaultLocation', 'This is the first default location, edit or delete it');
+			INSERT INTO quantity_units (name, description) VALUES ('DefaultQuantityUnit', 'This is the first default quantity unit, edit or delete it');
+			INSERT INTO products (name, description, location_id, qu_id_purchase, qu_id_stock, qu_factor_purchase_to_stock) VALUES ('DefaultProduct1', 'This is the first default product, edit or delete it', 1, 1, 1, 1);
+			INSERT INTO products (name, description, location_id, qu_id_purchase, qu_id_stock, qu_factor_purchase_to_stock) VALUES ('DefaultProduct2', 'This is the second default product, edit or delete it', 1, 1, 1, 1);"
+		);
+	}
+
+	private static function ExecuteMigrationWhenNeeded(PDO $pdo, int $migrationId, string $sql)
+	{
+		if ($pdo->query("SELECT COUNT(*) FROM migrations WHERE migration = $migrationId")->fetchColumn() == 0)
+		{
+			$pdo->exec(utf8_encode($sql));
+			$pdo->exec('INSERT INTO migrations (migration) VALUES (' . $migrationId . ')');
+		}
+	}
+}