app/soc/views/site/user/profile.py
author Todd Larsen <tlarsen@google.com>
Tue, 23 Sep 2008 23:20:23 +0000
changeset 189 1cf3e7531382
parent 184 7c0b42aecd9b
child 190 b1351bf81064
permissions -rw-r--r--
Split out HTTP request manipulation functions from template_helpers.py, which is in danger of becoming a "misc" or "util" module unnecessarily.
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#!/usr/bin/python2.5
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#
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# Copyright 2008 the Melange authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#   http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Developer views for editing and examining User profiles.
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"""
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__authors__ = [
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  '"Todd Larsen" <tlarsen@google.com>',
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  ]
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from google.appengine.api import users
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from django import http
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from django import newforms as forms
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from django.utils.translation import ugettext_lazy
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from soc.logic import out_of_band
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from soc.logic.site import id_user
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from soc.views import simple
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from soc.views.helpers import forms_helpers
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from soc.views.helpers import request_helpers
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from soc.views.helpers import response_helpers
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from soc.views.user import profile
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import soc.models.user
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class LookupForm(forms_helpers.DbModelForm):
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  """Django form displayed for a Developer to look up a User.
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  This form is manually specified, instead of using
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    model = soc.models.user.User
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  in the Meta class, because the form behavior is unusual and normally
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  required Properties of the User model need to sometimes be omitted.
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  Also, this form only permits entry and editing  of some of the User entity
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  Properties, not all of them.
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  """
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  id = forms.EmailField(required=False,
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      label=soc.models.user.User.id.verbose_name,
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      help_text=soc.models.user.User.id.help_text)
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  link_name = forms.CharField(required=False,
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      label=soc.models.user.User.link_name.verbose_name,
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      help_text=soc.models.user.User.link_name.help_text)
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  class Meta:
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    model = None
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  def clean_link_name(self):
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    link_name = self.cleaned_data.get('link_name')
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    if not link_name:
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      # link name not supplied (which is OK), so do not try to validate it
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      return None
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    if not id_user.isLinkNameFormatValid(link_name):
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      raise forms.ValidationError('This link name is in wrong format.')
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    return link_name
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  def clean_id(self):
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    email = self.cleaned_data.get('id')
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    if not email:
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      # email not supplied (which is OK), so do not try to convert it
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      return None
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    try:
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      return users.User(email=email)
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    except users.UserNotFoundError:
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      raise forms.ValidationError('Account not found.')
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DEF_SITE_USER_PROFILE_LOOKUP_TMPL = 'soc/site/user/profile/lookup.html'
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def lookup(request, template=DEF_SITE_USER_PROFILE_LOOKUP_TMPL):
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  """View for a Developer to look up a User Model entity.
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  Args:
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    request: the standard django request object
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    template: the "sibling" template (or a search list of such templates)
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      from which to construct the public.html template name (or names)
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  Returns:
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    A subclass of django.http.HttpResponse which either contains the form to
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    be filled out, or a redirect to the correct view in the interface.
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  """
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  # create default template context for use with any templates
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  context = response_helpers.getUniversalContext(request)
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  alt_response = simple.getAltResponseIfNotDeveloper(request,
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                                                     context=context)
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  if alt_response:
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    return alt_response
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  user = None  # assume that no User entity will be found
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  form = None  # assume blank form needs to be displayed
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  lookup_message = ugettext_lazy('Enter information to look up a User.')
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  email_error = None  # assume no email look-up errors
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  if request.method == 'POST':
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    form = LookupForm(request.POST)
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    if form.is_valid():
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      form_id = form.cleaned_data.get('id')
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      if form_id:
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        # email provided, so attempt to look up user by email
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        user = id_user.getUserFromId(form_id)
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        if user:
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          lookup_message = ugettext_lazy('User found by email.')
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        else:
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          email_error = ugettext_lazy('User with that email not found.')
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      if not user:
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        # user not found yet, so see if link name was provided
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        linkname = form.cleaned_data.get('link_name')
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        if linkname:
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          # link name provided, so try to look up by link name 
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          user = id_user.getUserFromLinkName(linkname)
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          if user:
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            lookup_message = ugettext_lazy('User found by link name.')
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            email_error = None  # clear previous error, since User was found
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          else:
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            context['linkname_error'] = ugettext_lazy(
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                'User with that link name not found.')            
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    # else: form was not valid
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  # else:  # method == 'GET'
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  if user:
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    # User entity found, so populate form with existing User information            
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    # context['found_user'] = user
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    form = LookupForm(initial={'id': user.id.email,
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                               'link_name': user.link_name})
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    if request.path.endswith('lookup'):
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      # convert /lookup path into /profile/link_name path
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      context['edit_link'] = response_helpers.replaceSuffix(
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          request.path, 'lookup', 'profile/%s' % user.link_name)
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    # else: URL is not one that was expected, so do not display edit link
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  elif not form:
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    # no pre-populated form was constructed, so show the empty look-up form
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    form = LookupForm()
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  context.update({'form': form,
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                  'found_user': user,
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                  'email_error': email_error,
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                  'lookup_message': lookup_message})
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  return response_helpers.respond(request, template, context)
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class EditForm(forms_helpers.DbModelForm):
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  """Django form displayed when Developer creates or edits a User.
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  This form is manually specified, instead of using
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    model = soc.models.user.User
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  in the Meta class, because the form behavior is unusual and normally
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  required Properties of the User model need to sometimes be omitted.
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  """
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  id = forms.EmailField(
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      label=soc.models.user.User.id.verbose_name,
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      help_text=soc.models.user.User.id.help_text)
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  link_name = forms.CharField(
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      label=soc.models.user.User.link_name.verbose_name,
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      help_text=soc.models.user.User.link_name.help_text)
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  nick_name = forms.CharField(
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      label=soc.models.user.User.nick_name.verbose_name)
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  is_developer = forms.BooleanField(required=False,
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      label=soc.models.user.User.is_developer.verbose_name,
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      help_text=soc.models.user.User.is_developer.help_text)
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184
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  key_name = forms.CharField(widget=forms.HiddenInput)
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  class Meta:
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    model = None
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  def clean_link_name(self):
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    link_name = self.cleaned_data.get('link_name')
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    if not id_user.isLinkNameFormatValid(link_name):
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      raise forms.ValidationError("This link name is in wrong format.")
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    else:
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      key_name = self.data.get('key_name')
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      if not id_user.isLinkNameAvailableForId(
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          link_name, id=id_user.getUserFromKeyName(key_name).id) :
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        raise forms.ValidationError("This link name is already in use.")
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    return link_name
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  def clean_id(self):
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    new_email = self.cleaned_data.get('id')
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    form_id = users.User(email=new_email)
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    key_name = self.data.get('key_name')
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    old_email = id_user.getUserFromKeyName(key_name).id.email()
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    if new_email != old_email:
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      if id_user.isIdUser(form_id):
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        raise forms.ValidationError("This account is already in use.")
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    return form_id
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170
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DEF_SITE_USER_PROFILE_EDIT_TMPL = 'soc/site/user/profile/edit.html'
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DEF_CREATE_NEW_USER_MSG = ' You can create a new user by visiting' \
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                          ' <a href="/site/user/profile">Create ' \
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                          'a New User</a> page.'
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def edit(request, linkname=None, template=DEF_SITE_USER_PROFILE_EDIT_TMPL):
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  """View for a Developer to modify the properties of a User Model entity.
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  Args:
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    request: the standard django request object
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    linkname: the User's site-unique "linkname" extracted from the URL
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    template: the "sibling" template (or a search list of such templates)
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      from which to construct the public.html template name (or names)
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  Returns:
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    A subclass of django.http.HttpResponse which either contains the form to
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    be filled out, or a redirect to the correct view in the interface.
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  """
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  # create default template context for use with any templates
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  context = response_helpers.getUniversalContext(request)
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  alt_response = simple.getAltResponseIfNotDeveloper(request,
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                                                     context=context)
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  if alt_response:
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    return alt_response
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  user = None  # assume that no User entity will be found
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171
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  # try to fetch User entity corresponding to linkname if one exists    
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  try:
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    user = id_user.getUserIfLinkName(linkname)
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  except out_of_band.ErrorResponse, error:
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    # show custom 404 page when link name doesn't exist in Datastore
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    error.message = error.message + DEF_CREATE_NEW_USER_MSG
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    return simple.errorResponse(request, error, template, context)
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170
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  if request.method == 'POST':
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    form = EditForm(request.POST)
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    if form.is_valid():
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      form_id = form.cleaned_data.get('id')
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      new_linkname = form.cleaned_data.get('link_name')
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      nickname = form.cleaned_data.get('nick_name')
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      is_developer = form.cleaned_data.get('is_developer')
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      key_name = form.cleaned_data.get('key_name')
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184
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      user = id_user.updateUserForKeyName(key_name=key_name, id=form_id, 
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          link_name=new_linkname, nick_name=nickname, 
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          is_developer=is_developer)
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184
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      if not user:
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        return http.HttpResponseRedirect('/')
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      # redirect to new /site/user/profile/new_linkname?s=0
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      # (causes 'Profile saved' message to be displayed)
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      return response_helpers.redirectToChangedSuffix(
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          request, linkname, new_linkname,
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          params=profile.SUBMIT_PROFILE_SAVED_PARAMS)
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  else: # method == 'GET':
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    # try to fetch User entity corresponding to link name if one exists
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    if linkname:
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      if user:
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        # is 'Profile saved' parameter present, but referrer was not ourself?
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        # (e.g. someone bookmarked the GET that followed the POST submit) 
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        if (request.GET.get(profile.SUBMIT_MSG_PARAM_NAME)
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            and (not response_helpers.isReferrerSelf(request,
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                                                    suffix=linkname))):
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          # redirect to aggressively remove 'Profile saved' query parameter
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          return http.HttpResponseRedirect(request.path)
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        # referrer was us, so select which submit message to display
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        # (may display no message if ?s=0 parameter is not present)
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        context['submit_message'] = (
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            request_helpers.getSingleIndexedParamValue(
170
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                request, profile.SUBMIT_MSG_PARAM_NAME,
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                values=profile.SUBMIT_MESSAGES))
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        # populate form with the existing User entity
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        form = EditForm(initial={ 'key_name': user.key().name(),
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            'id': user.id.email, 'link_name': user.link_name,
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            'nick_name': user.nick_name, 'is_developer': user.is_developer})       
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      else:
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        if request.GET.get(profile.SUBMIT_MSG_PARAM_NAME):
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          # redirect to aggressively remove 'Profile saved' query parameter
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          return http.HttpResponseRedirect(request.path)
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        context['lookup_error'] = ugettext_lazy(
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            'User with that link name not found.')
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        form = EditForm(initial={'link_name': linkname})
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    else:  # no link name specified in the URL
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      if request.GET.get(profile.SUBMIT_MSG_PARAM_NAME):
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        # redirect to aggressively remove 'Profile saved' query parameter
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        return http.HttpResponseRedirect(request.path)
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      # no link name specified, so start with an empty form
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      form = EditForm()
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  context.update({'form': form,
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                  'existing_user': user})
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  return response_helpers.respond(request, template, context)