英文:
Can I conditional validate from parent struct value ? (https://github.com/go-playground/validator)
问题
我正在尝试使用https://github.com/go-playground/validator进行验证。
我遇到的问题是，条件验证取决于父结构的值。
首先，这种验证是否可行？
如果不行，你能给我一个解决这些问题的提示吗？
谢谢。
type A struct {
Enabled bool `json:"enabled" validate:"required"`
Reason struct {
Note string `json:"note" validate:"required_if=Enabled true"` // 如果父结构的Enabled为true，则该结构将是必需的
} `json:"reason" validate:"required"`
}
英文:
I'm trying to validate using https://github.com/go-playground/validator.
I'm facing problem that conditional validation depend on parent struct value.
First of all that validation can be done ?
If can not be, could you give me a hint that solve these problems.
Thanks.
type A struct {
Enabled bool `json:"enabled" validate:"required"`
Reason struct {
Note string `json:"note" validate:"required_if=Enabled true"` // if parent's Enabled is true that struct will be required
} `json:"reason" validate:"required"`
}
答案1
得分: 1
只需将Reason定义为指针即可解决问题。
type A struct {
Enabled bool `json:"enabled" validate:"required"`
Reason *Reason `json:"reason" validate:"required_if=Enabled true"`
}
type Reason struct {
Note string `json:"note" validate:"required"`
}
另一种方法是自定义验证函数，可以参考这个链接：https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-Custom_Validation_Functions
英文:
Just define Reason as pointer so it will be fine.
type A struct {
Enabled bool `json:"enabled" validate:"required"`
Reason *Reason `json:"reason" validate:"required_if=Enabled true"`
}
type Reason struct {
Note string `json:"note" validate:"required"`
}
Another way: u can custom the validate https://pkg.go.dev/github.com/go-playground/validator/v10#hdr-Custom_Validation_Functions
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