doutu4335 2019-06-09 22:13
浏览 88

SQLBoiler从`AndIn`中的另一个表中选择

I am trying to follow the examples in sqlboiler (https://github.com/volatiletech/sqlboiler). But, I can't find a way to add another table in AndIn clause, since any Where leads to return two values.

users, err := models.Users(
  Select("id", "name"),
  Where("age > ?", 30),
  AndIn("c.kind in ?", "visa", "mastercard"),
).All(ctx, db)

In this example, if, we could get a filter a way to fetch values from another table, it'd be equivalent to SQL.

One way to get this done is to obtain the values separately and then feed it in as a variable.

Thanks!

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  • doushi5913 2019-06-11 23:15
    关注

    You can use arbitrary SQL in Where.

    users, err := models.Users(
      Select("id", "name"),
      Where("age > ?", 30),
      Where("c.kind IN (select kind from your_other_table)"),
    ).All(ctx, db)
    

    WhereIn, AndIn are just handy functions to autogenerate a list of a variable amount of placeholders. WhereIn("x in ?", "a", "b") is the same as Where("x in (?, ?)", "a", "b"). If you don't need that, just use regular Where.

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