Comments (5)
IsLongerThan looks promising, I will try that.
Thanks for your work!
Regards, Christian
from class-validator.
Using Custom validation classes and Custom validation decorators you can create a complex validations like in your case
from class-validator.
I had the opinion that this solutions are only suited for validating single fields, not for comparing two fields.
E.g. validation classes:
// one field value called text in your doc
validate(text: string, ...
validation decorator:
// one field with value
validate(value: any, ...
I had the hope that
@Equals(this.password2)
public password: string;
would solve this, but this
is not bound for the validating annotations.
from class-validator.
no its totally possible to implement. Take a look on this example it does exactly what you want - make comparasion on a different property of the same object.
from class-validator.
Unfortunately this code doesn't compile.
error TS2345: Argument of type '{ constraints: string[]; options: ValidationOptions | undefined; propertyName: string; target: Fu...' is not assignable to parameter of type 'ValidationDecoratorOptions'.
Types of property 'options' are incompatible.
Type 'ValidationOptions | undefined' is not assignable to type 'ValidatorOptions'.
Type 'undefined' is not assignable to type 'ValidatorOptions'.
The version of typescript is
"typescript": "2.1.4",
It works when the second param is not optional.
export function IsEqualTo(property: string, validationOptions: ValidationOptions) {
from class-validator.
Related Issues (20)
- question: How can I validate a union of strings? HOT 1
- fix: @IsDateString() accepts wrong date format HOT 2
- fix: Cannot find namespace 'ValidatorJS' in 0.14.x HOT 8
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- fix: options for @IsBase64 decorator are ignored HOT 1
- docs: add changelog for 0.14.1
- Class-level validators
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- question: nested validation but discriminated depending on a field value in the root dto HOT 3
- feature: return promise from validation only if necessary and validate sync if possible
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from class-validator.