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推荐使用https://github.com/go-gorm/gen 进一步封装生成dao

https://github.com/go-gorm/gen
go-gorm/gen#555 (这是我觉得在gorm-gen的基础上可以继续优化的部分)

主要要实现的就是,当使用的是默认的*gorm.DB时 不再需要手动传入

	test.Category.WithContext(context.Background()).Where(test.Category.Status.Eq(0)).First()
如果不需要ctx 还可以继续简化
	test.Category.Where(test.Category.Status.Eq(0)).First()
使用事务时必须指定事务的*gorm.DB就再用
	database.DB.Transaction(func(tx *gorm.DB) error {
		_, err := test.Use(tx).Category.WithContext(context.Background()).Where(test.Category.Status.Eq(0)).Delete()
		if err != nil {
			return err
		}
		_, err = test.Use(tx).Category.WithContext(context.Background()).Where(test.Category.Status.Eq(1)).Delete()
		return err
	})

这样感觉很爽啊。。。。

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