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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | 7x 7x 7x 9x 9x 12x 2x 7x 7x 7x 7x 7x | import { IsOptional, IsString, Validate } from 'class-validator';
import {
ValidatorConstraint,
ValidatorConstraintInterface,
ValidationArguments,
} from 'class-validator';
@ValidatorConstraint({ name: 'atLeastOneRequired', async: false })
export class IsAtLeastOneOf implements ValidatorConstraintInterface {
validate(value: any, args: ValidationArguments) {
const object = args.object as any;
// args.constraints is the array passed to the decorator, which is ['files', 'folders']
return args.constraints.some(
(prop: string) => object[prop] !== undefined && object[prop] !== '',
);
}
defaultMessage(args: ValidationArguments) {
return `At least one of the following must be provided and not empty: ${args.constraints.join(', ')}.`;
}
}
export class RequestContextArgsDto {
@IsOptional()
@IsString()
files?: string;
@IsOptional()
@IsString()
folders?: string;
@IsOptional()
@IsString()
reason?: string;
// Corrected: Pass a flat array of property names.
@Validate(IsAtLeastOneOf, ['files', 'folders'])
_validation: undefined;
}
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