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go-playground / validator

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
MIT License
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In case of nested struct, if validation failed for inner field how would I get the json tag name for that field #409

Closed ghost closed 5 years ago

ghost commented 5 years ago

Package version eg. v8, v9:

v9

Issue, Question or Enhancement:

Question : I have struct Config which consist of Field SliceOfAnotherStruct which contained the slice of pointer to AnotherStruct. Now if validation failed for a field in AnotherStruct then validation error return me field name as Config.AnotherStruct[0].Bank Here how could I get the json tag for field Bank in AnotherStruct

Code sample, to showcase or reproduce:

type Config struct {
    SliceOfAnotherStruct         []*AnotherStruct        `bson:"esignType" json:"esignType" validate:"required,dive,required"`
}

type AnotherStruct struct {
    Name                   string        `bson:"name" json:"name" validate:"required"`
    Cost                   string        `bson:"cost" json:"cost" validate:"required"`
    Bank    string        `bson:"bank" json:"bank" validate:"required"`
    IFSC     string        `bson:"ifsc" json:"ifsc" validate:"required"`
}
deankarn commented 5 years ago

The documentation for this was recently updated in this PR

https://godoc.org/gopkg.in/go-playground/validator.v9#Validate.RegisterTagNameFunc

after registering such a function then the json name will be used...it can also be customized any way you wish for BSON name, really anything.

let me know if that helps?