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#重新配置需要先删除目录 migrations目录下的所有文件
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# 1、执行aerich初始化：aerich init -t 指定配置
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aerich init -t settings.TORTOISE_ORM
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# 将会在目录下生成空的 migrations 文件夹和 aerich.ini 文件
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# 2、将模型映射到数据库中：
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aerich init-db
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# 此时数据库中就会生成对应的表
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# migrations 下将会生成SQL语句
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# aerich表下会存每个模型的内容
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# 3、重新生成SQL语句：
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aerich migrate
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# 4、把新生成的SQL推送到数据库：
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aerich upgrade
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# 表信息
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# 5、如果要回到上一个版本：
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aerich downgrade
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# 6、查看历史迁移记录：
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aerich history
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# 7、查看形成当前版本的迁移记录文件：
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aerich heads
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# 8、aerich 除了提供命令行之外，还提供了代码内执行的办法，从aerich引入 Command类即可，提供的方法与命令行一样
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# 注：根据实测，在MySQL5.7上使用会报错：
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# 换成MySQL8以后使用正常
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