GAE : How to refresh page after submitting form on GAE? - forms

Question

I have a form on a page and submit the details of the form on the click of the submit button and want to refresh the page after the object is added to the datastore. I read online that this could be because of the datastore's Eventual Consistency but can't seem to figure out a way to achieve the desired result(refreshing the page).
class AddUpdateProfile(webapp2.RequestHandler):
def post(self):
#This will be used to add/update profile in a datastore. Will be called when the user clicks on submit button on the Profile Page
template = JINJA_ENVIRONMENT.get_template('profile.html')
error = None
name = self.request.get('name')
designation = self.request.get('designation')
salary = self.request.get('salary')
currency = self.request.get('currency')
logging.info("Name = "+name)
logging.info("Designation = "+designation)
logging.info("Salary = "+salary)
logging.info("Currency = "+currency)
profile = UserProfile(parent=userProfile_key(users.get_current_user().email()))
profile.name = name
profile.designation = designation
profile.salary = int(salary)
profile.currency = currency
profile.email = str(users.get_current_user().email())
profile.put()
#Go back to main page. TODO : Change this to update
self.redirect('/profile')
class Profile(webapp2.RequestHandler):
def get(self):
logging.info("Inside Profile Page")
user = users.get_current_user()
if user:
profileInfo = getProfileInformation(user.email())
logging.info("Found a user inside Profile Page")
url = users.create_logout_url(self.request.uri)
if profileInfo is None or not profileInfo:
logging.info("Email = "+user.email())
logging.info("Profile Info not found")
template_values = {
'user': user.nickname(),
'url': url
}
else:
logging.info("Profile Info found")
template_values = {
'user': user.nickname(),
'url': url,
'name' : profileInfo[0].name,
'designation' : profileInfo[0].designation,
'salary' : profileInfo[0].salary,
'currency' : profileInfo[0].currency
}
template_values = template_values
template = JINJA_ENVIRONMENT.get_template('profile.html')
self.response.write(template.render(template_values))
else:
logging.info("User not found. Loading Landing page")
template_values = {
'url' : users.create_login_url(self.request.uri)
}
template = JINJA_ENVIRONMENT.get_template('landing.html')
self.response.write(template.render(template_values))
class MainPage(webapp2.RequestHandler):
def get(self):
logging.info("Inside MainPage")
user = users.get_current_user()
if user:
logging.info("Found a user inside MainPage")
url = users.create_logout_url(self.request.uri)
url_linktext = 'SIGN OUT'
template_values = {
'user': user.nickname(),
'url': url,
'userPage' : "no",
'url_linktext': url_linktext,
}
template = JINJA_ENVIRONMENT.get_template('index.html')
self.response.write(template.render(template_values))
else:
logging.info("User not found. Loading Landing page")
template_values = {
'url' : users.create_login_url(self.request.uri)
}
template = JINJA_ENVIRONMENT.get_template('landing.html')
self.response.write(template.render(template_values))
app = webapp2.WSGIApplication([
('/', MainPage),
('/profile', Profile),
('/addProfile', AddUpdateProfile)
], debug=True)
It would be great if someone could have a look at the code and give me some input on how to resolve the issue.
Any help is really appreciated!
Thanks!

Answer 1

Not sure if this is what you are looking for, but in general, if you want to refresh the page, you should do it using Javascript/JQuery on your page.
Have your endpoint send back a JSON response back to the '/profile'. The response should look something like:
{"success":"success"}
Or if, you need to send an error message:
{"error": "insert error message here"}
Your Javascript and/JQuery should then check if "error" is in the response. If it is throw an error message, otherwise, refresh the page.
How to reload a page using Javascript?