Alembic版本ID代表什么？ [英] What does an Alembic revision ID represent?

问题描述

我刚刚开始研究Alembic，来自Django，我们有 South 来迁移数据库使用友好的旧固定格式的架构（包含在很快中）像 0037_fix_my_schema.py 这样的宽度数字来讨论应用迁移的顺序，我自然对Alembic的修订版ID感兴趣。是否有DAG支持Alembic，或者有人可以在这方面对其内部进行一些概述？

解决方案

我。 来源说：

  def rev_id（）：
 val = int（uuid.uuid4（））％ 100000000000000 
 return hex（val）[2：-1] 
  

不那么吸引人。 / p>

I have just started looking at Alembic, and coming from Django, where we have South to migrate our database schemas (which is soon to be included) which uses a friendly old fixed-width number like 0037_fix_my_schema.py to talk about the order in which migrations are to be applied, I am naturally intrigued by Alembic's revision ID. Is there a DAG backing Alembic, or can someone give a little overview of its internals in this respect?

解决方案

I took a look myself. The source says:

def rev_id():
    val = int(uuid.uuid4()) % 100000000000000
    return hex(val)[2:-1]

Not so fascinating.

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