From e31c4036d7dff043c53092233a9b2ba79deaa522 Mon Sep 17 00:00:00 2001 From: root Date: Tue, 11 Mar 2025 11:17:20 +0100 Subject: [PATCH] =?UTF-8?q?Hinzuf=C3=BCgen=20von=20Datenbank-Initialisieru?= =?UTF-8?q?ngsskript=20und=20Migrationen?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Dieses Commit fügt das 'initialize_myp_database.sh' Skript zur automatisierten Datenbank-Initialisierung hinzu sowie die notwendigen Migrations-Dateien für Flask-Migrate. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude --- backend/initialize_myp_database.sh | 41 +++++++ backend/migrations/README | 1 + backend/migrations/alembic.ini | 50 ++++++++ backend/migrations/env.py | 113 +++++++++++++++++++ backend/migrations/script.py.mako | 24 ++++ backend/migrations/versions/af3faaa3844c_.py | 81 +++++++++++++ 6 files changed, 310 insertions(+) create mode 100755 backend/initialize_myp_database.sh create mode 100644 backend/migrations/README create mode 100644 backend/migrations/alembic.ini create mode 100644 backend/migrations/env.py create mode 100644 backend/migrations/script.py.mako create mode 100644 backend/migrations/versions/af3faaa3844c_.py diff --git a/backend/initialize_myp_database.sh b/backend/initialize_myp_database.sh new file mode 100755 index 0000000..e1895a1 --- /dev/null +++ b/backend/initialize_myp_database.sh @@ -0,0 +1,41 @@ +#!/bin/bash + +# MYP Datenbank Initialisierungs-Skript +# Dieses Skript erstellt die erforderlichen Datenbanktabellen für das MYP Backend + +echo "=== MYP Datenbank Initialisierung ===" +echo "" + +# Aktiviere virtuelle Umgebung, falls vorhanden +if [ -d "venv" ]; then + echo "Aktiviere virtuelle Python-Umgebung..." + source venv/bin/activate +fi + +# Prüfe, ob Flask installiert ist +if ! python -c "import flask" &> /dev/null; then + echo "FEHLER: Flask ist nicht installiert." + echo "Bitte führe zuerst 'pip install -r requirements.txt' aus." + exit 1 +fi + +# Erstelle Instance-Ordner, falls nicht vorhanden +echo "Erstelle instance-Ordner, falls nicht vorhanden..." +mkdir -p instance/backups + +# Initialisiere die Datenbank +echo "" +echo "Initialisiere die Datenbank..." +FLASK_APP=app.py flask db init +FLASK_APP=app.py flask db migrate -m "Initiale Datenbank-Erstellung" +FLASK_APP=app.py flask db upgrade + +echo "" +echo "=== Datenbank-Initialisierung abgeschlossen ===" +echo "" +echo "Du kannst jetzt einen Admin-Benutzer über die Web-Oberfläche registrieren." +echo "Der erste registrierte Benutzer wird automatisch zum Admin." +echo "" +echo "Starte den Server mit:" +echo "python app.py" +echo "" \ No newline at end of file diff --git a/backend/migrations/README b/backend/migrations/README new file mode 100644 index 0000000..0e04844 --- /dev/null +++ b/backend/migrations/README @@ -0,0 +1 @@ +Single-database configuration for Flask. diff --git a/backend/migrations/alembic.ini b/backend/migrations/alembic.ini new file mode 100644 index 0000000..ec9d45c --- /dev/null +++ b/backend/migrations/alembic.ini @@ -0,0 +1,50 @@ +# A generic, single database configuration. + +[alembic] +# template used to generate migration files +# file_template = %%(rev)s_%%(slug)s + +# set to 'true' to run the environment during +# the 'revision' command, regardless of autogenerate +# revision_environment = false + + +# Logging configuration +[loggers] +keys = root,sqlalchemy,alembic,flask_migrate + +[handlers] +keys = console + +[formatters] +keys = generic + +[logger_root] +level = WARN +handlers = console +qualname = + +[logger_sqlalchemy] +level = WARN +handlers = +qualname = sqlalchemy.engine + +[logger_alembic] +level = INFO +handlers = +qualname = alembic + +[logger_flask_migrate] +level = INFO +handlers = +qualname = flask_migrate + +[handler_console] +class = StreamHandler +args = (sys.stderr,) +level = NOTSET +formatter = generic + +[formatter_generic] +format = %(levelname)-5.5s [%(name)s] %(message)s +datefmt = %H:%M:%S diff --git a/backend/migrations/env.py b/backend/migrations/env.py new file mode 100644 index 0000000..4c97092 --- /dev/null +++ b/backend/migrations/env.py @@ -0,0 +1,113 @@ +import logging +from logging.config import fileConfig + +from flask import current_app + +from alembic import context + +# this is the Alembic Config object, which provides +# access to the values within the .ini file in use. +config = context.config + +# Interpret the config file for Python logging. +# This line sets up loggers basically. +fileConfig(config.config_file_name) +logger = logging.getLogger('alembic.env') + + +def get_engine(): + try: + # this works with Flask-SQLAlchemy<3 and Alchemical + return current_app.extensions['migrate'].db.get_engine() + except (TypeError, AttributeError): + # this works with Flask-SQLAlchemy>=3 + return current_app.extensions['migrate'].db.engine + + +def get_engine_url(): + try: + return get_engine().url.render_as_string(hide_password=False).replace( + '%', '%%') + except AttributeError: + return str(get_engine().url).replace('%', '%%') + + +# add your model's MetaData object here +# for 'autogenerate' support +# from myapp import mymodel +# target_metadata = mymodel.Base.metadata +config.set_main_option('sqlalchemy.url', get_engine_url()) +target_db = current_app.extensions['migrate'].db + +# other values from the config, defined by the needs of env.py, +# can be acquired: +# my_important_option = config.get_main_option("my_important_option") +# ... etc. + + +def get_metadata(): + if hasattr(target_db, 'metadatas'): + return target_db.metadatas[None] + return target_db.metadata + + +def run_migrations_offline(): + """Run migrations in 'offline' mode. + + This configures the context with just a URL + and not an Engine, though an Engine is acceptable + here as well. By skipping the Engine creation + we don't even need a DBAPI to be available. + + Calls to context.execute() here emit the given string to the + script output. + + """ + url = config.get_main_option("sqlalchemy.url") + context.configure( + url=url, target_metadata=get_metadata(), literal_binds=True + ) + + with context.begin_transaction(): + context.run_migrations() + + +def run_migrations_online(): + """Run migrations in 'online' mode. + + In this scenario we need to create an Engine + and associate a connection with the context. + + """ + + # this callback is used to prevent an auto-migration from being generated + # when there are no changes to the schema + # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html + def process_revision_directives(context, revision, directives): + if getattr(config.cmd_opts, 'autogenerate', False): + script = directives[0] + if script.upgrade_ops.is_empty(): + directives[:] = [] + logger.info('No changes in schema detected.') + + conf_args = current_app.extensions['migrate'].configure_args + if conf_args.get("process_revision_directives") is None: + conf_args["process_revision_directives"] = process_revision_directives + + connectable = get_engine() + + with connectable.connect() as connection: + context.configure( + connection=connection, + target_metadata=get_metadata(), + **conf_args + ) + + with context.begin_transaction(): + context.run_migrations() + + +if context.is_offline_mode(): + run_migrations_offline() +else: + run_migrations_online() diff --git a/backend/migrations/script.py.mako b/backend/migrations/script.py.mako new file mode 100644 index 0000000..2c01563 --- /dev/null +++ b/backend/migrations/script.py.mako @@ -0,0 +1,24 @@ +"""${message} + +Revision ID: ${up_revision} +Revises: ${down_revision | comma,n} +Create Date: ${create_date} + +""" +from alembic import op +import sqlalchemy as sa +${imports if imports else ""} + +# revision identifiers, used by Alembic. +revision = ${repr(up_revision)} +down_revision = ${repr(down_revision)} +branch_labels = ${repr(branch_labels)} +depends_on = ${repr(depends_on)} + + +def upgrade(): + ${upgrades if upgrades else "pass"} + + +def downgrade(): + ${downgrades if downgrades else "pass"} diff --git a/backend/migrations/versions/af3faaa3844c_.py b/backend/migrations/versions/af3faaa3844c_.py new file mode 100644 index 0000000..f9f2c6d --- /dev/null +++ b/backend/migrations/versions/af3faaa3844c_.py @@ -0,0 +1,81 @@ +"""empty message + +Revision ID: af3faaa3844c +Revises: +Create Date: 2025-03-11 11:16:04.961964 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'af3faaa3844c' +down_revision = None +branch_labels = None +depends_on = None + + +def upgrade(): + # ### commands auto generated by Alembic - please adjust! ### + op.create_table('printer', + sa.Column('id', sa.String(length=36), nullable=False), + sa.Column('name', sa.String(length=64), nullable=False), + sa.Column('description', sa.Text(), nullable=False), + sa.Column('status', sa.Integer(), nullable=True), + sa.Column('ip_address', sa.String(length=15), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + with op.batch_alter_table('printer', schema=None) as batch_op: + batch_op.create_index(batch_op.f('ix_printer_name'), ['name'], unique=False) + + op.create_table('user', + sa.Column('id', sa.String(length=36), nullable=False), + sa.Column('username', sa.String(length=64), nullable=True), + sa.Column('password_hash', sa.String(length=128), nullable=True), + sa.Column('display_name', sa.String(length=100), nullable=True), + sa.Column('email', sa.String(length=120), nullable=True), + sa.Column('role', sa.String(length=20), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + with op.batch_alter_table('user', schema=None) as batch_op: + batch_op.create_index(batch_op.f('ix_user_email'), ['email'], unique=True) + batch_op.create_index(batch_op.f('ix_user_username'), ['username'], unique=True) + + op.create_table('print_job', + sa.Column('id', sa.String(length=36), nullable=False), + sa.Column('printer_id', sa.String(length=36), nullable=False), + sa.Column('user_id', sa.String(length=36), nullable=False), + sa.Column('start_at', sa.DateTime(), nullable=True), + sa.Column('duration_in_minutes', sa.Integer(), nullable=False), + sa.Column('comments', sa.Text(), nullable=True), + sa.Column('aborted', sa.Boolean(), nullable=True), + sa.Column('abort_reason', sa.Text(), nullable=True), + sa.ForeignKeyConstraint(['printer_id'], ['printer.id'], ), + sa.ForeignKeyConstraint(['user_id'], ['user.id'], ), + sa.PrimaryKeyConstraint('id') + ) + op.create_table('session', + sa.Column('id', sa.String(length=36), nullable=False), + sa.Column('user_id', sa.String(length=36), nullable=False), + sa.Column('expires_at', sa.DateTime(), nullable=False), + sa.ForeignKeyConstraint(['user_id'], ['user.id'], ), + sa.PrimaryKeyConstraint('id') + ) + # ### end Alembic commands ### + + +def downgrade(): + # ### commands auto generated by Alembic - please adjust! ### + op.drop_table('session') + op.drop_table('print_job') + with op.batch_alter_table('user', schema=None) as batch_op: + batch_op.drop_index(batch_op.f('ix_user_username')) + batch_op.drop_index(batch_op.f('ix_user_email')) + + op.drop_table('user') + with op.batch_alter_table('printer', schema=None) as batch_op: + batch_op.drop_index(batch_op.f('ix_printer_name')) + + op.drop_table('printer') + # ### end Alembic commands ###