You need some kind of ajax. Once the user have entered their email, send a request to your django app with only that email. Django check if the email exist and send a reply with yes or no.
2016-11-01 3:30 GMT+01:00 pradam programming <[email protected]>: > Thank you sir for the reply.. > But I am using HTML forms then what should I do...? I want error message > should display instantly when user enter existing mail id..! > > > On 1 Nov 2016 12:05 am, "Andromeda Yelton" <[email protected]> > wrote: >> >> If your model has the uniqueness constraint, you should get a form error >> message automatically. If you don't want your model to have that constraint >> but you still want your form to throw an error message, you can add a >> clean_<name of email field> and a clean_<name of mobile field> function that >> check for uniqueness and raise ValidationError if it fails (see examples >> here: https://docs.djangoproject.com/en/1.10/ref/forms/validation/ ). >> >> When the form saves successfully, the user will be redirected to the >> success_url you provide. That template can have success message text. >> Alternately, in your form_valid function in the view, you could add a >> success message that will get added to whatever page you're redirecting to >> (as long as you make sure your template is rendering messages) -> >> https://docs.djangoproject.com/en/1.10/ref/contrib/messages/#adding-a-message >> >> On Mon, Oct 31, 2016 at 1:55 AM, pradam programming >> <[email protected]> wrote: >>> >>> Hi, >>> Please I need an advice on the best approach to take on the following >>> issues. >>> I have create a form to save user details like first name,last >>> name,email,mobile number etc... >>> >>> 1.Now I need to show error message (In Models i gave email and mobile no >>> field as unique = True) when user enter a email id if email id exists in >>> database show message like email id exists beside the email text field(also >>> for the mobile no) else proceed with form. >>> 2.After i saving the form i need to show alert of success. >>> >>> regards, >>> Pradam Abhilash >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/django-users. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/django-users/CAGGVXBOz6kQs%2BHhR%2BsrTUApOGnR7t50HHQuvSN_zJz6VMQosFw%40mail.gmail.com. >>> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> -- >> Andromeda Yelton >> Vice President/President-Elect, Library & Information Technology >> Association: http://www.lita.org >> http://andromedayelton.com >> @ThatAndromeda >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/django-users. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/django-users/CAFE1XCbVpkpOboCKR_Xck-oTm2NJYCVQ6ssWZsBWRaNe3pQM9Q%40mail.gmail.com. >> For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/CAGGVXBPwq%2BGaEkfFYRx%3Df3uL3Wzbh1xn5BLKdC7%2BCp_PHapBtQ%40mail.gmail.com. > > For more options, visit https://groups.google.com/d/optout. -- Cordialement, Coues Ludovic +336 148 743 42 -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAEuG%2BTb0ZOGn%2BQyJrkjptjBN8O9BBSS-KWRAVA_19CaT3MWv0A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
