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resource_id设置默认值以及唯一索引的原因导致写入失败 #23

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guoxiaod opened this issue Nov 16, 2020 · 0 comments
Open

resource_id设置默认值以及唯一索引的原因导致写入失败 #23

guoxiaod opened this issue Nov 16, 2020 · 0 comments

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@guoxiaod
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resource_id = Column('resource_id', String(50), unique=True, default="rg-{}".format(uuid()))

这块设置resource_id默认值后，实际上首次运行生成一个默认值，以后会一直使用这个默认值了，所有的默认值都是这个了。然后唯一索引会导致写入失败。
我们期望的是，每次写入的时候，类似update_time的默认值一样，重新运行uuid函数，但是实际不是。
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