Sử dụng mã @Ernest, tôi đã viết một manage_custom.py
cho sự di cư cấp phát . Bạn có thể lấy danh sách di chuyển đang chờ xử lý cũng di chuyển các lần di chuyển đang chờ xử lý này (chỉ), do đó tiết kiệm thời gian của bạn.
manage_custom.py
__author__ = "Parag Tyagi"
# set environment
import os
import sys
import django
sys.path.append('../')
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings')
django.setup()
from django.core.management import execute_from_command_line
from django.db import DEFAULT_DB_ALIAS, connections
from django.db.migrations.executor import MigrationExecutor
class Migration(object):
"""
A custom manage.py file for managing pending migrations (only)
"""
def __init__(self, migrate_per_migration_id=False):
"""
:param migrate_per_migration_id: Setting this to `True` will migrate each pending migration of any
particular app individually. `False` will migrate the whole app at a time.
You can add more arguments (viz. showmigrations, migrate) by defining the argument with prefix as 'ARGV_'
and create its functionality accordingly.
"""
self.ARG_PREFIX = 'ARGV_'
self.MIGRATE_PER_MIGRATION_ID = migrate_per_migration_id
self.ARGV_showmigrations = False
self.ARGV_migrate = False
@staticmethod
def get_pending_migrations(database):
"""
:param database: Database alias
:return: List of pending migrations
"""
connection = connections[database]
connection.prepare_database()
executor = MigrationExecutor(connection)
targets = executor.loader.graph.leaf_nodes()
return executor.migration_plan(targets)
def check_arguments(self, args):
"""
Method for checking arguments passed while running the command
:param args: Dictionary of arguments passed while running the script file
:return: Set the argument variable ('ARGV_<argument>') to True if found else terminate the script
"""
required_args = filter(None, [var.split(self.ARG_PREFIX)[1] if var.startswith(self.ARG_PREFIX)
else None for var in self.__dict__.keys()])
if any(k in args for k in required_args):
for arg in required_args:
if arg in args:
setattr(self, '{}{}'.format(self.ARG_PREFIX, arg), True)
break
else:
print ("Please pass argument: {}"
"\ne.g. python manage_custom.py {}".format(required_args, required_args[0]))
sys.exit()
def do_migration(self):
"""
Migrates all the pending migrations (if any)
"""
pending_migrations = self.get_pending_migrations(DEFAULT_DB_ALIAS)
if pending_migrations:
done_app = []
for mig in pending_migrations:
app, migration_id = str(mig[0]).split('.')
commands = ['manage.py', 'migrate'] + ([app, migration_id] if self.MIGRATE_PER_MIGRATION_ID else [app])
if self.ARGV_migrate and (app not in done_app or self.MIGRATE_PER_MIGRATION_ID):
execute_from_command_line(commands)
done_app.append(app)
elif self.ARGV_showmigrations:
print (str(mig[0]))
else:
print ("No pending migrations")
if __name__ == '__main__':
args = sys.argv
migration = Migration()
migration.check_arguments(args)
migration.do_migration()
Cách sử dụng:
# below command will show all pending migrations
python manage_custom.py showmigrations
# below command will migrate all pending migrations
python manage_custom.py migrate
PS: Hãy môi trường thiết lập theo cấu trúc dự án của bạn.
Nguồn
2016-04-06 12:24:59
bạn có đang chạy tập lệnh tự động để kiểm tra di chuyển như vải không? – Praneeth
http://stackoverflow.com/a/8491203/4325513 – Praneeth