West Tour Road--python the form component of full stack--django

I. Learning content and Induction

1 " "2 Form Components3 -Validation of user requests4 -Form5 -Ajax6 -Generate HTML code7     8 A. Create a class9 B. Creating a corresponding field in a class (including regular expressions)Ten c. GET One -obj = Fr () generates HTML code A d. POST - -obj = Fr (Request. POST) - -If Obj.is_valid (): # To determine if validation is successful the Obj.cleaned_data - Else: - obj.errors - " "

Second, create the class

1 #creating classes, corresponding fields2  fromDjangoImportForms3  fromDjango.formsImport Fields4 classF1form (forms. Form):5user = fields. Charfield (required=True,6Min_length=6,7Max_length=32,8error_messages={9                                 'Required':'user name cannot be empty',Ten                                 'Min-length':'Too Short', One                                 'Invalid':'Format Error'   #format errors are used invalid A                             } -                             ) -PWD = fields. Charfield (required=True, theMin_length=20, -error_messages={ -                                'Required':'The password cannot be empty' -                            } +                            ) -Age = fields. Integerfield (required=True) +email = fields. Emailfield (Required=true)

Third, views.py operation

1 defF1 (Request):2     ifRequest.method = ="GET":3         #Generate HTML4obj =F1form ()5         returnRender (Request,'f1.html',{'obj': obj})6     Else:7         #u = Request. Post.get ("user") # non-empty, length 6 to8         #p = Request. Post.get ("pwd") # Non-empty, greater than9         #a = Request. Post.get ("Age") # Non-empty, integerTen         #e = Request. Post.get ("email") # non-empty, mailbox format One         #print (u,p,a,e) Aobj =F1form (Request. POST) -         #Obj.is_valid () whether all validation is successful -         ifobj.is_valid (): the             #user-Submitted data -             Print(Obj.cleaned_data) -             returnredirect'http://www.xiaohuar.com') -         Else: +             #validation error message -             Print(obj.errors) +             returnRender (Request,'f1.html', {'obj': obj})

Four, HTML operation

1 <formAction= "/f1.html"Method= "POST">2     <P>{{Obj.user}} {{obj.errors.user.0}}</P>3     <P>{{OBJ.PWD}} {{obj.errors.pwd.0}}</P>4     <P>{{Obj.age}} {{obj.errors.age.0}}</P>5     <P>{{Obj.email}} {{obj.errors.email.0}}</P>6     <P><inputtype= "Submit"value= "Submit"></P>7 </form>

West Tour Road--python the form component of full stack--django