如何在Peewee元類中使用默認排序

Question

我正在使用Peewee ORM。

我有這樣的課：

class Sample(PMBaseModel):
    id = peewee.PrimaryKeyField()
    location = peewee.CharField(max_length=255)
    position = peewee.IntegerField()

    class Meta:
        db_table = 'sample'

如何使用Meta Class設置默認排序並定義訂單類型？

Answer 1

我感謝@giaosudau找到了答案。

class Sample(PMBaseModel):
    id = peewee.PrimaryKeyField()
    location = peewee.CharField(max_length=255)
    position = peewee.IntegerField()

    class Meta:
        db_table = 'sample'
        order_by = ['-location']

如果在order_by部分的字段名稱的第一位使用'-'，則peewee對字段執行DESC排序。

Answer 2

請遵循以下說明https://peewee.readthedocs.org/en/latest/peewee/models.html#model-options

我們使用order_by字段列表進行默認排序

然后

class Sample(PMBaseModel):
    id = peewee.PrimaryKeyField()
    location = peewee.CharField(max_length=255)
    position = peewee.IntegerField()

    class Meta:
        db_table = 'sample'
        order_by = ['location']