hey use: str.isdigit() http://www.tutorialspoint.com/python/string_isdigit.htm
what is idDigit() ? is that a call to a method somewhere else. and arent you trying to validate numberofapples = request.POST['numberofapples'] not playerid? Personally if this is form data you are trying to validate i'd write a form class and use the form clean() method to evaluate them as integerfields: http://docs.djangoproject.com/en/1.2/ref/forms/fields/ http://docs.djangoproject.com/en/1.2/topics/forms/ Also you can verify using regular expressions *good to get comfortable with if you're new to django. cheers sam_w On Mon, Mar 28, 2011 at 4:59 PM, django beginner <djangop...@gmail.com> wrote: > Hi django experts, > > just want to know your opinion on how to validate the user input > (example: the user input field should be integer, but the user > accidentally inputs any character), here is my code: > > FYI; the numberofapples field is IntegerField > > here is my sample code: > > def apples_edit(request): > if request.POST['id']: > id = request.POST['id'] > numberofapples = request.POST['numberofapples'] > conn = psycopg2.connect("dbname=my_db user=user password=pass > host=localhost") > cur = conn.cursor() > > try: > if isDigit(playerid): > pass > else: > template_name = 'err_template.html' > t = loader.get_template(template_name) > c = RequestContext(request, {"err_msg":"number of > apples should be integer, Please correct your input"}) > return HttpResponse(t.render(c)) > except ValueError: > template_name = 'err_template.html' > t = loader.get_template(template_name) > c = RequestContext(request, {"err_msg":"number of apples > should be integer, Please correct your input"}) > return HttpResponse(t.render(c)) > > sql = """ UPDATE my_db SET "numberofapples"='%s' where "id"='%s' > """ % (numberofapples,id) > cur.execute(sql) > conn.commit() > conn.close() > > ---------------------- > My problem is that, the error template does not appear after I type in > any character for numberofapples field. > What would be the correct code for this? > > Thanks. > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To post to this group, send email to django-users@googlegroups.com. > To unsubscribe from this group, send email to > django-users+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/django-users?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
