mixins

问题 I'm using mixins/traits with TypeScript using a subclass factory pattern as described at https://mariusschulz.com/blog/mixin-classes-in-typescript. The trait in question is called Identifiable , which imparts an id property to a class that should express the Identifiable trait. When I attempt to use the trait with another, non-generic trait ( Nameable ) in a certain order, compilation fails. class Empty {} type ctor<T = Empty> = new(...args: any[]) => T; function Nameable<T extends ctor =

问题 does somebody know, can I use SuccessMessageMixin with RedirectView? Because when I use it in my views: class CarRentView(SuccessMessageMixin,RedirectView): success_message = "Well done!" permanent = False query_string = True model = Car def get_redirect_url(self, *args, **kwargs): car = get_object_or_404(Car, pk=kwargs['pk']) car.rent=True car.save() return reverse('cars') there is nothing happend. And I've got another question - is there any way to 'block' car, which is rent for next user

问题 I'm trying to implement a custom mixin in Python 3.6. Child classes would inherit its methods as well as base class. db = flask_sqlalchemy.SQLAlchemy() class CustomMixin(object): # {... __init__ is not being explicitly called, instance and class methods go here ...} class UserModel(CustomMixin, db.Model) # {... class variables, own and inherited methods go here ...} However, although my solution works, it gives a weak warning in PyCharm Community 2019.2: user = UserModel(class_var_1=value_1,

来源： https://stackoverflow.com/questions/43086637/es6-mixin-with-generic-type-in-typescript

来源： https://stackoverflow.com/questions/48372465/type-safe-mixin-decorator-in-typescript

来源： https://stackoverflow.com/questions/48372465/type-safe-mixin-decorator-in-typescript

来源： https://stackoverflow.com/questions/24292847/django-does-it-make-sense-to-override-save-method-in-a-mixin

来源： https://stackoverflow.com/questions/59986413/achieving-multiple-inheritance-using-python-dataclasses

来源： https://stackoverflow.com/questions/59986413/achieving-multiple-inheritance-using-python-dataclasses

来源： https://stackoverflow.com/questions/47488513/bootstrap-4-media-queries-mixins-not-working-with-bootstrap-4-via-cdn