validate-nested-of-array-should-set-each.md

Rule: validate-nested-of-array-should-set-each

If you use the @ValidateNested decorator you should specify the {each: true} option if the property is an array.

This PASSES because it's an array and each is set

export class CreateOrganisationDto {
    @ApiProperty({type: Person, isArray: true})
    @ValidateNested({each: true})
    members!: MyClass[];
}

This PASSES because it's an array and each is set

export class CreateOrganisationDto {
    @ApiProperty({type: Person, isArray: true})
    @ValidateNested({each: true})
    members!: Array<MyClass>;
}

This PASSES because it's not an array and each is not set

export class CreateOrganisationDto {
    @ApiProperty({type: Person, isArray: true})
    @ValidateNested()
    members!: MyClass;
}

This FAILS because it's not an array and each is set

export class CreateOrganisationDto {
    @ApiProperty({type: Person, isArray: true})
    @ValidateNested({each: true})
    members!: MyClass;
}