As I studied django's class-based view,
When overriding a function, the return value is super(class, self)... There are cases where it goes like this.
No matter how much I look it up, I can't understand the concept of this super function clearly.
If you use super, it is said that calls from the top parent class are made only once if they overlap.
I don't know why I use super because I inherited only one CreateView class that I inherited, so there seems to be no duplication.
I know that the function I encountered is a from_valid function that runs when the form passed from the client is valid.
I know it works if you just paste this code, but I'm return super (ExCreateView, self).I'd like to know the logic of how form_valid(form) works.
class ExCreateView(CreateView):
def form_valid(self, form):
# # form.instance.user = self.request.user
return super(ExCreateView, self).form_valid(form)
I ask for your help.
django
In python2, you must hand over your class to super to use the method of the direct parent class immediately. In the form_valid, it seems that it was executed like that to execute all the form_valid defined in the parent in the inheritance process.
Python2 should be like this
class A(object):
def foo(self):
print "A"
class B(A):
def foo(self):
print "B"
super(B, self).foo()
class C(B):
def foo(self):
print "C"
super(C, self).foo()
c = C()
c.foo()
Python 3 can just do this.
class A(object):
def foo(self):
print("A")
class B(A):
def foo(self):
print("B")
super().foo()
class C(B):
def foo(self):
print("C")
super().foo()
c = C()
c.foo()
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