Django admin model field validation

Question

I am developing a web application using django admin template. In that application I require a model field validation based on another model field input. Lets say an example, If the user provided "yes" as input value in a file_required model field, Browsefile model field should be considered as mandatory field. If the user provided "no" as input value in a file_required model field, Browsefile model field should be considered as optional. Please advise

Answer 1

If all you need is to create a const object like this

const Type A = {"type_a", {1, 2}};

i.e. an object that cannot be changed once it is initialized, then you merely need to remove constexpr from the constructor.