from rest_framework import permissions

class IsAuthorOrReadOnly(permissions.BasePermission):
    """
    Object-level permission to only allow Author of an object to edit it.
    Assumes the model instance has an 'author' attribute.
    """

    def has_object_permission(self, request, view, obj):
        if request.method in permissions.SAFE_METHODS:
            return True

        return obj.author == request.user


