Initial commit: What To Cook (WTC) v4.4 - Digitales Kochbuch, Wochenmenueplan & Buchdruck

2026-10-14 20:24:37 +02:00
commit c01d2d7639
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+#!/usr/bin/env python3
+"""
+Migration Script: SQLite -> MariaDB
+Überträgt alle Daten (Gerichte und Rezepte) von der lokalen SQLite-Datenbank in die MariaDB.
+Verwendung:
+  python3 migrate_to_mariadb.py
+"""
+import os
+import sqlite3
+import sys
+from dotenv import load_dotenv
+
+load_dotenv()
+
+try:
+    import pymysql
+    import pymysql.cursors
+except ImportError:
+    print("Fehler: PyMySQL ist nicht installiert. Bitte 'pip install pymysql' ausführen.")
+    sys.exit(1)
+
+SQLITE_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "data", "wtc.db")
+
+MARIADB_HOST = os.getenv("MARIADB_HOST", "127.0.0.1")
+MARIADB_PORT = int(os.getenv("MARIADB_PORT", "3306"))
+MARIADB_USER = os.getenv("MARIADB_USER", "v2_usr_wtc")
+MARIADB_PASS = os.getenv("MARIADB_PASS", "Wtc_Kochbuch_Pass_2026!")
+MARIADB_NAME = os.getenv("MARIADB_NAME", "v2_db_wtc")
+
+def migrate():
+    print(f"=== Starte Migration: SQLite ({SQLITE_PATH}) -> MariaDB ({MARIADB_HOST}:{MARIADB_PORT}/{MARIADB_NAME}) ===")
+
+    if not os.path.exists(SQLITE_PATH):
+        print(f"Hinweis: Keine SQLite-Datenbank unter '{SQLITE_PATH}' gefunden.")
+        return
+
+    # 1. SQLite öffnen
+    sqlite_conn = sqlite3.connect(SQLITE_PATH)
+    sqlite_conn.row_factory = sqlite3.Row
+    sqlite_cursor = sqlite_conn.cursor()
+
+    # 2. MariaDB öffnen
+    try:
+        maria_conn = pymysql.connect(
+            host=MARIADB_HOST,
+            port=MARIADB_PORT,
+            user=MARIADB_USER,
+            password=MARIADB_PASS,
+            database=MARIADB_NAME,
+            charset="utf8mb4",
+            cursorclass=pymysql.cursors.DictCursor,
+            autocommit=False
+        )
+    except Exception as e:
+        print(f"Fehler bei Verbindung zur MariaDB: {e}")
+        print("Tipp: Wurde init_mariadb.sql bereits auf dem MariaDB-Server ausgeführt?")
+        sys.exit(1)
+
+    maria_cursor = maria_conn.cursor()
+
+    try:
+        # A. Gerichte migrieren
+        sqlite_cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='dishes'")
+        if sqlite_cursor.fetchone():
+            sqlite_cursor.execute("SELECT id, name, category, effort, created_at FROM dishes")
+            dishes = sqlite_cursor.fetchall()
+            print(f"Gefundene Gerichte in SQLite: {len(dishes)}")
+
+            for d in dishes:
+                maria_cursor.execute("""
+                    INSERT INTO dishes (id, name, category, effort, created_at)
+                    VALUES (%s, %s, %s, %s, %s)
+                    ON DUPLICATE KEY UPDATE category=VALUES(category), effort=VALUES(effort)
+                """, (d["id"], d["name"], d["category"], d["effort"], d["created_at"]))
+            print("Gerichte erfolgreich nach MariaDB übertragen.")
+
+        # B. Rezepte migrieren
+        sqlite_cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='recipes'")
+        if sqlite_cursor.fetchone():
+            sqlite_cursor.execute("""
+                SELECT id, title, category, chapter_number, effort, prep_time, cook_time, portions, ingredients, instructions, notes, source, image_url, created_at, updated_at
+                FROM recipes
+            """)
+            recipes = sqlite_cursor.fetchall()
+            print(f"Gefundene Rezepte in SQLite: {len(recipes)}")
+
+            for r in recipes:
+                source_val = r["source"] if "source" in r.keys() and r["source"] else ""
+                maria_cursor.execute("""
+                    INSERT INTO recipes (id, title, category, chapter_number, effort, prep_time, cook_time, portions, ingredients, instructions, notes, source, image_url, created_at, updated_at)
+                    VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)
+                    ON DUPLICATE KEY UPDATE 
+                        title=VALUES(title), category=VALUES(category), chapter_number=VALUES(chapter_number),
+                        effort=VALUES(effort), prep_time=VALUES(prep_time), cook_time=VALUES(cook_time),
+                        portions=VALUES(portions), ingredients=VALUES(ingredients), instructions=VALUES(instructions),
+                        notes=VALUES(notes), source=VALUES(source), image_url=VALUES(image_url)
+                """, (
+                    r["id"], r["title"], r["category"], r["chapter_number"], r["effort"],
+                    r["prep_time"], r["cook_time"], r["portions"], r["ingredients"],
+                    r["instructions"], r["notes"], source_val, r["image_url"], r["created_at"], r["updated_at"]
+                ))
+            print("Rezepte erfolgreich nach MariaDB übertragen.")
+
+        maria_conn.commit()
+        print("\n✅ Migration erfolgreich abgeschlossen!")
+        print("Um die Anwendung auf MariaDB umzustellen, setze in der .env-Datei:")
+        print("DB_ENGINE=mariadb")
+
+    except Exception as e:
+        maria_conn.rollback()
+        print(f"Fehler während der Migration: {e}")
+        raise
+    finally:
+        sqlite_conn.close()
+        maria_conn.close()
+
+if __name__ == "__main__":
+    migrate()