当您调用
migrate命令Flask-
Migrate（或实际上在其下的Alembic）时，它将查看您的内容
models.py并将其与数据库中的实际内容进行比较。
您的迁移脚本为空的事实表明，您已经通过Flask-Migrate无法控制的另一种方法（可能是通过调用Flask-
SQLAlchemy的方法）更新了数据库，以匹配您的模型
db.create_all()。
如果您的数据库中没有任何有价值的数据，请打开Python Shell并调用
db.drop_all()以清空它，然后再次尝试自动迁移。
更新 ：我在这里安装了您的项目，并确认迁移对我来说工作正常：
(venv)[miguel@miguel-linux nhs-listpull]$ ./run.py db init Creating directory /home/miguel/tmp/mark/nhs-listpull/migrations...done Creating directory /home/miguel/tmp/mark/nhs-listpull/migrations/versions...done Generating /home/miguel/tmp/mark/nhs-listpull/migrations/script.py.mako...done Generating /home/miguel/tmp/mark/nhs-listpull/migrations/env.pyc...done Generating /home/miguel/tmp/mark/nhs-listpull/migrations/env.py...done Generating /home/miguel/tmp/mark/nhs-listpull/migrations/README...done Generating /home/miguel/tmp/mark/nhs-listpull/migrations/alembic.ini...done Please edit configuration/connection/logging settings in '/home/miguel/tmp/mark/nhs-listpull/migrations/alembic.ini' before proceeding.(venv)[miguel@miguel-linux nhs-listpull]$ ./run.py db migrateINFO [alembic.migration] Context impl SQLiteImpl.INFO [alembic.migration] Will assume non-transactional DDL.INFO [alembic.autogenerate] Detected added table 'list_type'INFO [alembic.autogenerate] Detected added table 'job' Generating /home/miguel/tmp/mark/nhs- listpull/migrations/versions/48ff3456cfd3_.py...done
尝试重新签出，我认为您的设置正确。
