We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Flow with accepting mark rules
The first time a user tries to attend an event with marks, the rules should be presented, and the user must accept these. If they are accepted, the flag for accepting marks should be checked in the user object. 

The next time the user tries to attend an event with marks, he or she does not need to accept the terms again.

However, if the mark rules changes, we must have some way to propagate this through all users so they need to accept the terms changed.


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `apps/events/views.py`
Content:
```
1 #-*- coding: utf-8 -*-
2 import datetime
3 
4 from django.utils import timezone
5 
6 from django.conf import settings
7 from django.contrib.auth.decorators import login_required
8 from django.contrib import messages
9 from django.core.urlresolvers import reverse
10 from django.http import HttpResponseRedirect
11 from django.utils.translation import ugettext_lazy as _
12 from django.shortcuts import render
13 from django.shortcuts import get_object_or_404
14 
15 import watson
16 
17 from apps.events.models import Event, AttendanceEvent, Attendee
18 from apps.events.forms import CaptchaForm
19 
20 
21 
22 def index(request):
23     return render(request, 'events/index.html', {})
24 
25 def details(request, event_id):
26     event = get_object_or_404(Event, pk=event_id)
27 
28     is_attendance_event = False
29     user_anonymous = True
30     user_attending = False
31     place_on_wait_list = 0
32     will_be_on_wait_list = False
33     rules = []
34     user_status = False
35 
36     try:
37         attendance_event = AttendanceEvent.objects.get(pk=event_id)
38         is_attendance_event = True
39         form = CaptchaForm()
40 
41         if attendance_event.rule_bundles:
42             for rule_bundle in attendance_event.rule_bundles.all():
43                 rules.append(rule_bundle.get_rule_strings)
44 
45         if request.user.is_authenticated():
46             user_anonymous = False
47             if attendance_event.is_attendee(request.user):
48                 user_attending = True
49 
50             
51             will_be_on_wait_list = attendance_event.will_i_be_on_wait_list
52 
53             user_status = event.is_eligible_for_signup(request.user)
54 
55             # Check if this user is on the waitlist
56             place_on_wait_list = event.what_place_is_user_on_wait_list(request.user)
57 
58     except AttendanceEvent.DoesNotExist:
59         pass
60 
61     if is_attendance_event:
62         context = {
63                 'event': event,
64                 'attendance_event': attendance_event,
65                 'user_anonymous': user_anonymous,
66                 'user_attending': user_attending,
67                 'will_be_on_wait_list': will_be_on_wait_list,
68                 'rules': rules,
69                 'user_status': user_status,
70                 'place_on_wait_list': int(place_on_wait_list),
71                 #'position_in_wait_list': position_in_wait_list,
72                 'captcha_form': form,
73         }
74         
75         return render(request, 'events/details.html', context)
76     else:
77         return render(request, 'events/details.html', {'event': event})
78 
79 
80 def get_attendee(attendee_id):
81     return get_object_or_404(Attendee, pk=attendee_id)
82 
83 @login_required
84 def attendEvent(request, event_id):
85 
86     if not request.POST:
87         messages.error(request, _(u'Vennligst fyll ut skjemaet.'))
88         return HttpResponseRedirect(reverse(details, args=[event_id]))
89 
90     form = CaptchaForm(request.POST)
91 
92     if not form.is_valid():
93         messages.error(request, _(u'Du klarte ikke captcha-en. Er du en bot?'))
94         return HttpResponseRedirect(reverse(details, args=[event_id]))
95 
96     # Check if the user is eligible to attend this event.
97     # If not, an error message will be present in the returned dict
98     event = Event.objects.get(pk=event_id)
99     attendance_event = event.attendance_event
100 
101     user_eligible = event.is_eligible_for_signup(request.user);
102 
103     if user_eligible['status']:   
104         Attendee(event=attendance_event, user=request.user).save()
105         messages.success(request, _(u"Du er nå påmeldt på arrangementet!"))
106         return HttpResponseRedirect(reverse(details, args=[event_id]))
107     else:
108         messages.error(request, user_eligible['message'])
109         return HttpResponseRedirect(reverse(details, args=[event_id]))
110 
111 @login_required
112 def unattendEvent(request, event_id):
113 
114     event = AttendanceEvent.objects.get(pk=event_id)
115     Attendee.objects.get(event=event, user=request.user).delete()
116 
117     messages.success(request, _(u"Du ble meldt av arrangementet."))
118     return HttpResponseRedirect(reverse(details, args=[event_id]))
119 
120 
121 def search_events(request):
122     query = request.GET.get('query')
123     filters = {
124         'future' : request.GET.get('future'),
125         'myevents' : request.GET.get('myevents')
126     }
127     events = _search_indexed(request, query, filters)
128 
129     return render(request, 'events/search.html', {'events': events})
130 
131 
132 def _search_indexed(request, query, filters):
133     results = []
134     kwargs = {}
135 
136     if filters['future'] == 'true':
137         kwargs['event_start__gte'] = timezone.now()
138 
139     if filters['myevents'] == 'true':
140         kwargs['attendance_event__attendees'] = request.user
141 
142     if query:
143         for result in watson.search(query, models=(
144             Event.objects.filter(**kwargs).prefetch_related(
145                 'attendance_event', 'attendance_event__attendees'),)):
146             results.append(result.object)
147         return results[:10]
148 
149     return Event.objects.filter(**kwargs).prefetch_related(
150             'attendance_event', 'attendance_event__attendees')
151
```

Path: `apps/events/forms.py`
Content:
```
1 from django import forms
2 from captcha.fields import CaptchaField
3 
4 class CaptchaForm(forms.Form):
5     captcha = CaptchaField()
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/apps/events/forms.py b/apps/events/forms.py
--- a/apps/events/forms.py
+++ b/apps/events/forms.py
@@ -2,4 +2,11 @@
 from captcha.fields import CaptchaField
 
 class CaptchaForm(forms.Form):
-    captcha = CaptchaField()
\ No newline at end of file
+    def __init__(self, *args, **kwargs):
+        user = kwargs.pop('user', None)
+        super(CaptchaForm, self).__init__(*args, **kwargs)
+        # Removing mark rules field if user has already accepted the rules
+        if user and  user.mark_rules:
+            del self.fields['mark_rules']
+    mark_rules = forms.BooleanField(label=u'Jeg godtar <a href="/profile/#marks" target="_blank">prikkreglene</a>')
+    captcha = CaptchaField()
diff --git a/apps/events/views.py b/apps/events/views.py
--- a/apps/events/views.py
+++ b/apps/events/views.py
@@ -36,7 +36,7 @@
     try:
         attendance_event = AttendanceEvent.objects.get(pk=event_id)
         is_attendance_event = True
-        form = CaptchaForm()
+        form = CaptchaForm(user=request.user)
 
         if attendance_event.rule_bundles:
             for rule_bundle in attendance_event.rule_bundles.all():
@@ -86,11 +86,14 @@
     if not request.POST:
         messages.error(request, _(u'Vennligst fyll ut skjemaet.'))
         return HttpResponseRedirect(reverse(details, args=[event_id]))
-
-    form = CaptchaForm(request.POST)
+    form = CaptchaForm(request.POST, user=request.user)
 
     if not form.is_valid():
-        messages.error(request, _(u'Du klarte ikke captcha-en. Er du en bot?'))
+        if not 'mark_rules' in request.POST:
+            error_message = u'Du må godta prikkreglene for å melde deg på.'
+        else:
+            error_message = u'Du klarte ikke captcha-en. Er du en bot?'
+        messages.error(request, _(error_message))
         return HttpResponseRedirect(reverse(details, args=[event_id]))
 
     # Check if the user is eligible to attend this event.
@@ -101,6 +104,10 @@
     user_eligible = event.is_eligible_for_signup(request.user);
 
     if user_eligible['status']:   
+        # First time accepting mark rules
+        if 'mark_rules' in form.cleaned_data:
+            request.user.mark_rules = True
+            request.user.save()
         Attendee(event=attendance_event, user=request.user).save()
         messages.success(request, _(u"Du er nå påmeldt på arrangementet!"))
         return HttpResponseRedirect(reverse(details, args=[event_id]))

{"golden_diff": "diff --git a/apps/events/forms.py b/apps/events/forms.py\n--- a/apps/events/forms.py\n+++ b/apps/events/forms.py\n@@ -2,4 +2,11 @@\n from captcha.fields import CaptchaField\n \n class CaptchaForm(forms.Form):\n-    captcha = CaptchaField()\n\\ No newline at end of file\n+    def __init__(self, *args, **kwargs):\n+        user = kwargs.pop('user', None)\n+        super(CaptchaForm, self).__init__(*args, **kwargs)\n+        # Removing mark rules field if user has already accepted the rules\n+        if user and  user.mark_rules:\n+            del self.fields['mark_rules']\n+    mark_rules = forms.BooleanField(label=u'Jeg godtar <a href=\"/profile/#marks\" target=\"_blank\">prikkreglene</a>')\n+    captcha = CaptchaField()\ndiff --git a/apps/events/views.py b/apps/events/views.py\n--- a/apps/events/views.py\n+++ b/apps/events/views.py\n@@ -36,7 +36,7 @@\n     try:\n         attendance_event = AttendanceEvent.objects.get(pk=event_id)\n         is_attendance_event = True\n-        form = CaptchaForm()\n+        form = CaptchaForm(user=request.user)\n \n         if attendance_event.rule_bundles:\n             for rule_bundle in attendance_event.rule_bundles.all():\n@@ -86,11 +86,14 @@\n     if not request.POST:\n         messages.error(request, _(u'Vennligst fyll ut skjemaet.'))\n         return HttpResponseRedirect(reverse(details, args=[event_id]))\n-\n-    form = CaptchaForm(request.POST)\n+    form = CaptchaForm(request.POST, user=request.user)\n \n     if not form.is_valid():\n-        messages.error(request, _(u'Du klarte ikke captcha-en. Er du en bot?'))\n+        if not 'mark_rules' in request.POST:\n+            error_message = u'Du m\u00e5 godta prikkreglene for \u00e5 melde deg p\u00e5.'\n+        else:\n+            error_message = u'Du klarte ikke captcha-en. Er du en bot?'\n+        messages.error(request, _(error_message))\n         return HttpResponseRedirect(reverse(details, args=[event_id]))\n \n     # Check if the user is eligible to attend this event.\n@@ -101,6 +104,10 @@\n     user_eligible = event.is_eligible_for_signup(request.user);\n \n     if user_eligible['status']:   \n+        # First time accepting mark rules\n+        if 'mark_rules' in form.cleaned_data:\n+            request.user.mark_rules = True\n+            request.user.save()\n         Attendee(event=attendance_event, user=request.user).save()\n         messages.success(request, _(u\"Du er n\u00e5 p\u00e5meldt p\u00e5 arrangementet!\"))\n         return HttpResponseRedirect(reverse(details, args=[event_id]))\n", "issue": "Flow with accepting mark rules\nThe first time a user tries to attend an event with marks, the rules should be presented, and the user must accept these. If they are accepted, the flag for accepting marks should be checked in the user object. \n\nThe next time the user tries to attend an event with marks, he or she does not need to accept the terms again.\n\nHowever, if the mark rules changes, we must have some way to propagate this through all users so they need to accept the terms changed.\n\n", "before_files": [{"content": "#-*- coding: utf-8 -*-\nimport datetime\n\nfrom django.utils import timezone\n\nfrom django.conf import settings\nfrom django.contrib.auth.decorators import login_required\nfrom django.contrib import messages\nfrom django.core.urlresolvers import reverse\nfrom django.http import HttpResponseRedirect\nfrom django.utils.translation import ugettext_lazy as _\nfrom django.shortcuts import render\nfrom django.shortcuts import get_object_or_404\n\nimport watson\n\nfrom apps.events.models import Event, AttendanceEvent, Attendee\nfrom apps.events.forms import CaptchaForm\n\n\n\ndef index(request):\n    return render(request, 'events/index.html', {})\n\ndef details(request, event_id):\n    event = get_object_or_404(Event, pk=event_id)\n\n    is_attendance_event = False\n    user_anonymous = True\n    user_attending = False\n    place_on_wait_list = 0\n    will_be_on_wait_list = False\n    rules = []\n    user_status = False\n\n    try:\n        attendance_event = AttendanceEvent.objects.get(pk=event_id)\n        is_attendance_event = True\n        form = CaptchaForm()\n\n        if attendance_event.rule_bundles:\n            for rule_bundle in attendance_event.rule_bundles.all():\n                rules.append(rule_bundle.get_rule_strings)\n\n        if request.user.is_authenticated():\n            user_anonymous = False\n            if attendance_event.is_attendee(request.user):\n                user_attending = True\n\n            \n            will_be_on_wait_list = attendance_event.will_i_be_on_wait_list\n\n            user_status = event.is_eligible_for_signup(request.user)\n\n            # Check if this user is on the waitlist\n            place_on_wait_list = event.what_place_is_user_on_wait_list(request.user)\n\n    except AttendanceEvent.DoesNotExist:\n        pass\n\n    if is_attendance_event:\n        context = {\n                'event': event,\n                'attendance_event': attendance_event,\n                'user_anonymous': user_anonymous,\n                'user_attending': user_attending,\n                'will_be_on_wait_list': will_be_on_wait_list,\n                'rules': rules,\n                'user_status': user_status,\n                'place_on_wait_list': int(place_on_wait_list),\n                #'position_in_wait_list': position_in_wait_list,\n                'captcha_form': form,\n        }\n        \n        return render(request, 'events/details.html', context)\n    else:\n        return render(request, 'events/details.html', {'event': event})\n\n\ndef get_attendee(attendee_id):\n    return get_object_or_404(Attendee, pk=attendee_id)\n\n@login_required\ndef attendEvent(request, event_id):\n\n    if not request.POST:\n        messages.error(request, _(u'Vennligst fyll ut skjemaet.'))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n    form = CaptchaForm(request.POST)\n\n    if not form.is_valid():\n        messages.error(request, _(u'Du klarte ikke captcha-en. Er du en bot?'))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n    # Check if the user is eligible to attend this event.\n    # If not, an error message will be present in the returned dict\n    event = Event.objects.get(pk=event_id)\n    attendance_event = event.attendance_event\n\n    user_eligible = event.is_eligible_for_signup(request.user);\n\n    if user_eligible['status']:   \n        Attendee(event=attendance_event, user=request.user).save()\n        messages.success(request, _(u\"Du er n\u00e5 p\u00e5meldt p\u00e5 arrangementet!\"))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n    else:\n        messages.error(request, user_eligible['message'])\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n@login_required\ndef unattendEvent(request, event_id):\n\n    event = AttendanceEvent.objects.get(pk=event_id)\n    Attendee.objects.get(event=event, user=request.user).delete()\n\n    messages.success(request, _(u\"Du ble meldt av arrangementet.\"))\n    return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n\ndef search_events(request):\n    query = request.GET.get('query')\n    filters = {\n        'future' : request.GET.get('future'),\n        'myevents' : request.GET.get('myevents')\n    }\n    events = _search_indexed(request, query, filters)\n\n    return render(request, 'events/search.html', {'events': events})\n\n\ndef _search_indexed(request, query, filters):\n    results = []\n    kwargs = {}\n\n    if filters['future'] == 'true':\n        kwargs['event_start__gte'] = timezone.now()\n\n    if filters['myevents'] == 'true':\n        kwargs['attendance_event__attendees'] = request.user\n\n    if query:\n        for result in watson.search(query, models=(\n            Event.objects.filter(**kwargs).prefetch_related(\n                'attendance_event', 'attendance_event__attendees'),)):\n            results.append(result.object)\n        return results[:10]\n\n    return Event.objects.filter(**kwargs).prefetch_related(\n            'attendance_event', 'attendance_event__attendees')\n", "path": "apps/events/views.py"}, {"content": "from django import forms\nfrom captcha.fields import CaptchaField\n\nclass CaptchaForm(forms.Form):\n    captcha = CaptchaField()", "path": "apps/events/forms.py"}], "after_files": [{"content": "#-*- coding: utf-8 -*-\nimport datetime\n\nfrom django.utils import timezone\n\nfrom django.conf import settings\nfrom django.contrib.auth.decorators import login_required\nfrom django.contrib import messages\nfrom django.core.urlresolvers import reverse\nfrom django.http import HttpResponseRedirect\nfrom django.utils.translation import ugettext_lazy as _\nfrom django.shortcuts import render\nfrom django.shortcuts import get_object_or_404\n\nimport watson\n\nfrom apps.events.models import Event, AttendanceEvent, Attendee\nfrom apps.events.forms import CaptchaForm\n\n\n\ndef index(request):\n    return render(request, 'events/index.html', {})\n\ndef details(request, event_id):\n    event = get_object_or_404(Event, pk=event_id)\n\n    is_attendance_event = False\n    user_anonymous = True\n    user_attending = False\n    place_on_wait_list = 0\n    will_be_on_wait_list = False\n    rules = []\n    user_status = False\n\n    try:\n        attendance_event = AttendanceEvent.objects.get(pk=event_id)\n        is_attendance_event = True\n        form = CaptchaForm(user=request.user)\n\n        if attendance_event.rule_bundles:\n            for rule_bundle in attendance_event.rule_bundles.all():\n                rules.append(rule_bundle.get_rule_strings)\n\n        if request.user.is_authenticated():\n            user_anonymous = False\n            if attendance_event.is_attendee(request.user):\n                user_attending = True\n\n            \n            will_be_on_wait_list = attendance_event.will_i_be_on_wait_list\n\n            user_status = event.is_eligible_for_signup(request.user)\n\n            # Check if this user is on the waitlist\n            place_on_wait_list = event.what_place_is_user_on_wait_list(request.user)\n\n    except AttendanceEvent.DoesNotExist:\n        pass\n\n    if is_attendance_event:\n        context = {\n                'event': event,\n                'attendance_event': attendance_event,\n                'user_anonymous': user_anonymous,\n                'user_attending': user_attending,\n                'will_be_on_wait_list': will_be_on_wait_list,\n                'rules': rules,\n                'user_status': user_status,\n                'place_on_wait_list': int(place_on_wait_list),\n                #'position_in_wait_list': position_in_wait_list,\n                'captcha_form': form,\n        }\n        \n        return render(request, 'events/details.html', context)\n    else:\n        return render(request, 'events/details.html', {'event': event})\n\n\ndef get_attendee(attendee_id):\n    return get_object_or_404(Attendee, pk=attendee_id)\n\n@login_required\ndef attendEvent(request, event_id):\n\n    if not request.POST:\n        messages.error(request, _(u'Vennligst fyll ut skjemaet.'))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n    form = CaptchaForm(request.POST, user=request.user)\n\n    if not form.is_valid():\n        if not 'mark_rules' in request.POST:\n            error_message = u'Du m\u00e5 godta prikkreglene for \u00e5 melde deg p\u00e5.'\n        else:\n            error_message = u'Du klarte ikke captcha-en. Er du en bot?'\n        messages.error(request, _(error_message))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n    # Check if the user is eligible to attend this event.\n    # If not, an error message will be present in the returned dict\n    event = Event.objects.get(pk=event_id)\n    attendance_event = event.attendance_event\n\n    user_eligible = event.is_eligible_for_signup(request.user);\n\n    if user_eligible['status']:   \n        # First time accepting mark rules\n        if 'mark_rules' in form.cleaned_data:\n            request.user.mark_rules = True\n            request.user.save()\n        Attendee(event=attendance_event, user=request.user).save()\n        messages.success(request, _(u\"Du er n\u00e5 p\u00e5meldt p\u00e5 arrangementet!\"))\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n    else:\n        messages.error(request, user_eligible['message'])\n        return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n@login_required\ndef unattendEvent(request, event_id):\n\n    event = AttendanceEvent.objects.get(pk=event_id)\n    Attendee.objects.get(event=event, user=request.user).delete()\n\n    messages.success(request, _(u\"Du ble meldt av arrangementet.\"))\n    return HttpResponseRedirect(reverse(details, args=[event_id]))\n\n\ndef search_events(request):\n    query = request.GET.get('query')\n    filters = {\n        'future' : request.GET.get('future'),\n        'myevents' : request.GET.get('myevents')\n    }\n    events = _search_indexed(request, query, filters)\n\n    return render(request, 'events/search.html', {'events': events})\n\n\ndef _search_indexed(request, query, filters):\n    results = []\n    kwargs = {}\n\n    if filters['future'] == 'true':\n        kwargs['event_start__gte'] = timezone.now()\n\n    if filters['myevents'] == 'true':\n        kwargs['attendance_event__attendees'] = request.user\n\n    if query:\n        for result in watson.search(query, models=(\n            Event.objects.filter(**kwargs).prefetch_related(\n                'attendance_event', 'attendance_event__attendees'),)):\n            results.append(result.object)\n        return results[:10]\n\n    return Event.objects.filter(**kwargs).prefetch_related(\n            'attendance_event', 'attendance_event__attendees')\n", "path": "apps/events/views.py"}, {"content": "from django import forms\nfrom captcha.fields import CaptchaField\n\nclass CaptchaForm(forms.Form):\n    def __init__(self, *args, **kwargs):\n        user = kwargs.pop('user', None)\n        super(CaptchaForm, self).__init__(*args, **kwargs)\n        # Removing mark rules field if user has already accepted the rules\n        if user and  user.mark_rules:\n            del self.fields['mark_rules']\n    mark_rules = forms.BooleanField(label=u'Jeg godtar <a href=\"/profile/#marks\" target=\"_blank\">prikkreglene</a>')\n    captcha = CaptchaField()\n", "path": "apps/events/forms.py"}]}