add new endpoint for grant cancellation (#7912)

app/grants/urls.py

@@ -20,7 +20,7 @@
 from django.urls import path, re_path
 
 from grants.views import (
-    add_grant_from_collection, bulk_fund, bulk_grants_for_cart, clr_grants, contribute_to_grants_v1,
+    add_grant_from_collection, bulk_fund, bulk_grants_for_cart, cancel_grant_v1, clr_grants, contribute_to_grants_v1,
     contribution_addr_from_all_as_json, contribution_addr_from_grant_as_json,
     contribution_addr_from_grant_during_round_as_json, contribution_addr_from_round_as_json, create_matching_pledge_v1,
     flag, get_collection, get_collections_list, get_grant_payload, get_grants, get_interrupted_contributions,
@@ -80,6 +80,8 @@
     path('v1/api/grants', grants_info, name='grants_info'),
     path('v1/api/grant/<int:grant_id>/', grant_details_api, name='grant_details_api'),
     path('v1/api/grant/edit/<int:grant_id>/', grant_edit, name='grant_edit'),
+    path('v1/api/grant/<int:grant_id>/cancel', cancel_grant_v1, name='cancel_grant_v1'),
+
 
     path('v1/api/<int:grant_id>/cart_payload', get_grant_payload, name='grant_payload'),
     path('v1/api/<int:grant_id>/verify', verify_grant, name='verify_grant'),

app/grants/views.py

@@ -1294,14 +1294,6 @@ def grant_details(request, grant_id, grant_slug):
             grant.save()
             record_grant_activity_helper('update_grant', grant, profile)
             return redirect(reverse('grants:details', args=(grant.pk, grant.slug)))
-        if 'grant_cancel_tx_id' in request.POST:
-            grant.cancel_tx_id = request.POST.get('grant_cancel_tx_id', '')
-            grant.active = False
-            grant.save()
-            grant_cancellation(grant, user_subscription)
-            for sub in subscriptions:
-                subscription_terminated(grant, sub)
-            record_grant_activity_helper('killed_grant', grant, profile)
         elif 'edit-title' in request.POST:
             grant.title = request.POST.get('edit-title')
             grant.github_project_url = request.POST.get('edit-github_project_url')
@@ -1857,6 +1849,59 @@ def grant_fund(request, grant_id, grant_slug):
 
     raise Http404
 
+
+@csrf_exempt
+@require_POST
+def cancel_grant_v1(request, grant_id):
+
+    response = {
+        'status': 400,
+        'message': 'error: Bad Request. Unable to contribute to grant'
+    }
+
+
+    user = request.user if request.user.is_authenticated else None
+    if not user:
+        response['message'] = 'error: user needs to be authenticated to cancel grant'
+        return JsonResponse(response)
+
+    profile = request.user.profile if hasattr(request.user, 'profile') else None
+
+    if not profile:
+        response['message'] = 'error: no matching profile found'
+        return JsonResponse(response)
+
+    if not request.method == 'POST':
+        response['message'] = 'error: grant cancellation is a POST operation'
+        return JsonResponse(response)
+
+    try:
+        grant = Grant.objects.get(pk=grant_id)
+    except Grant.DoesNotExist:
+        response['message'] = 'error: grant cannot be found'
+        return JsonResponse(response)
+
+    if not is_grant_team_member(grant, profile):
+        response['message'] = 'error: grant cancellation can be done only by grant owner'
+        return JsonResponse(response)
+
+    if not grant.active:
+        response['message'] = 'error: grant is already cancelled'
+        return JsonResponse(response)
+
+    grant.active = False
+    grant.save()
+
+    grant_cancellation(grant)
+    record_grant_activity_helper('killed_grant', grant, profile)
+
+    response = {
+        'status': 200,
+        'pk': grant.pk,
+        'message': 'grant cancelled sucessfully'
+    }
+    return JsonResponse(response)
+
 @login_required
 def bulk_fund(request):
     if request.method != 'POST':

app/marketing/mails.py

@@ -336,22 +336,21 @@ def support_cancellation(grant, subscription):
         translation.activate(cur_language)
 
 
-def grant_cancellation(grant, subscription):
-    if subscription and subscription.negative:
-        return
+def grant_cancellation(grant):
     from_email = settings.CONTACT_EMAIL
     to_email = grant.admin_profile.email
     cur_language = translation.get_language()
 
     try:
         setup_lang(to_email)
-        html, text, subject = render_grant_cancellation_email(grant, subscription)
+        html, text, subject = render_grant_cancellation_email(grant)
 
         if not should_suppress_notification_email(to_email, 'grant_cancellation'):
             send_mail(from_email, to_email, subject, text, html, categories=['transactional', func_name()])
     finally:
         translation.activate(cur_language)
 
+
 def grant_txn_failed(failed_contrib):
     profile, grant, tx_id = failed_contrib.subscription.contributor_profile, failed_contrib.subscription.grant, failed_contrib.tx_id
 

app/retail/emails.py

@@ -149,8 +149,8 @@ def render_support_cancellation_email(grant, subscription):
     return response_html, response_txt, subject
 
 
-def render_grant_cancellation_email(grant, subscription):
-    params = {'grant': grant, 'subscription': subscription}
+def render_grant_cancellation_email(grant):
+    params = {'grant': grant}
     response_html = premailer_transform(render_to_string("emails/grants/grant_cancellation.html", params))
     response_txt = render_to_string("emails/grants/grant_cancellation.txt", params)
     subject = _("Your Grant on Gitcoin Grants has been cancelled")
@@ -215,8 +215,7 @@ def subscription_terminated(request):
 @staff_member_required
 def grant_cancellation(request):
     grant = Grant.objects.first()
-    subscription = Subscription.objects.filter(grant__pk=grant.pk).first()
-    response_html, __, __ = render_grant_cancellation_email(grant, subscription)
+    response_html, __, __ = render_grant_cancellation_email(grant)
     return HttpResponse(response_html)
 
 

app/retail/templates/emails/grants/grant_cancellation.html

@@ -65,13 +65,6 @@ <h1 style="text-transform: none;">{% trans "Grant" %} '{{ grant.title }}' {% tra
   <img id="grant-logo" src="{% if grant.logo and grant.logo.url %}{{ grant.logo.url }}{% else %}{% with grant_logo='v2/images/grants/logos/' id=grant.id|modulo:3 %}{% static grant_logo|addstr:id|add:'.png' %}{% endwith %}{% endif %}" alt="grant logo" >
 </a>
 <p>{% trans "Thank you for using Gitcoin, we hope you'll come back to build more open source software!" %}</p>
-<p>{% trans "You can see the grant cancellation transaction on Etherscan" %}
-  {% if grant.network == 'mainnet' %}
-    <a href="http://etherscan.io/tx/{{ grant.cancel_tx_id }}">{% trans "here." %}</a>
-  {% else %}
-    <a href="http://{{ grant.network }}.etherscan.io/tx/{{ grant.cancel_tx_id }}">{% trans "here." %}</a>
-  {% endif %}
-</p>
 <p class="grant-link">
   <a class="grant-button" href="{% url 'grants:details' grant.pk grant.slug %}">{% trans "View Inactive Grant" %}</a>
 </p>

app/retail/templates/emails/grants/grant_cancellation.txt

@@ -4,13 +4,6 @@
 
 {% trans "Grant" %} {{ grant.title }} {% trans "has been cancelled" %}
 
-{% trans "You can see the transaction on Etherscan" %} at
-{% if grant.network == 'mainnet' %}
-  http://etherscan.io/tx/{{ grant.cancel_tx_id }}
-{% else %}
-  http://{{ grant.network }}.etherscan.io/tx/{{ grant.cancel_tx_id }}
-{% endif %}
-
 
 {% trans "View Inactive Grant here" %} {% url 'grants:details' grant.pk grant.slug %}