Add leave team button

apps/participation/templates/participation/team_detail.html

@@ -62,6 +62,9 @@
     </div>
     <div class="card-footer text-center">
         <button class="btn btn-primary" data-toggle="modal" data-target="#updateTeamModal">{% trans "Update" %}</button>
+        {% if not team.participation.valid %}
+            <button class="btn btn-danger" data-toggle="modal" data-target="#leaveTeamModal">{% trans "Leave" %}</button>
+        {% endif %}
     </div>
     </div>
 
@@ -120,6 +123,11 @@
     {% trans "Update" as modal_button %}
     {% url "participation:update_team" pk=team.pk as modal_action %}
     {% include "base_modal.html" with modal_id="updateTeam" %}
+
+    {% trans "Leave team" as modal_title %}
+    {% trans "Leave" as modal_button %}
+    {% url "participation:team_leave" as modal_action %}
+    {% include "base_modal.html" with modal_id="leaveTeam" modal_button_type="danger" %}
 {% endblock %}
 
 {% block extrajavascript %}
@@ -130,6 +138,11 @@
                 if (!modalBody.html().trim())
                     modalBody.load("{% url "participation:update_team" pk=team.pk %} #form-content");
             });
+            $('button[data-target="#leaveTeamModal"]').click(function() {
+                let modalBody = $("#leaveTeamModal div.modal-body");
+                if (!modalBody.html().trim())
+                    modalBody.load("{% url "participation:team_leave" %} #form-content");
+            });
         });
     </script>
 {% endblock %}

apps/participation/templates/participation/team_leave.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+
+{% load i18n %}
+
+{% block content %}
+    <form method="post">
+        <div class="alert alert-warning" id="form-content">
+            {% csrf_token %}
+            {% trans "Are you sure that you want to leave this team?" %}
+        </div>
+        <button class="btn btn-danger" type="submit">{% trans "Leave" %}</button>
+    </form>
+{% endblock %}

apps/participation/urls.py

@@ -1,7 +1,8 @@
 from django.urls import path
 
 from .views import CalendarView, CreateTeamView, JoinTeamView, MyParticipationDetailView, MyTeamDetailView, \
-    ParticipationDetailView, PhaseUpdateView, TeamAuthorizationsView, TeamDetailView, TeamUpdateView, UploadVideoView
+    ParticipationDetailView, PhaseUpdateView, TeamAuthorizationsView, TeamDetailView, TeamLeaveView, TeamUpdateView, \
+    UploadVideoView
 
 
 app_name = "participation"
@@ -13,6 +14,7 @@ urlpatterns = [
     path("team/<int:pk>/", TeamDetailView.as_view(), name="team_detail"),
     path("team/<int:pk>/update/", TeamUpdateView.as_view(), name="update_team"),
     path("team/<int:pk>/authorizations/", TeamAuthorizationsView.as_view(), name="team_authorizations"),
+    path("team/leave/", TeamLeaveView.as_view(), name="team_leave"),
     path("detail/", MyParticipationDetailView.as_view(), name="my_participation_detail"),
     path("detail/<int:pk>/", ParticipationDetailView.as_view(), name="participation_detail"),
     path("detail/upload-video/<int:pk>/", UploadVideoView.as_view(), name="upload_video"),

apps/participation/views.py

@@ -2,6 +2,9 @@ from io import BytesIO
 import os
 from zipfile import ZipFile
 
+from django.shortcuts import redirect
+from django.views.generic.base import View, TemplateView
+
 from corres2math.lists import get_sympa_client
 from corres2math.views import AdminMixin
 from django.contrib.auth.mixins import LoginRequiredMixin
@@ -236,6 +239,29 @@ class TeamAuthorizationsView(LoginRequiredMixin, DetailView):
         return response
 
 
+class TeamLeaveView(LoginRequiredMixin, TemplateView):
+    template_name = "participation/team_leave.html"
+
+    def dispatch(self, request, *args, **kwargs):
+        if not request.user.is_authenticated:
+            return self.handle_no_permission()
+        if not request.user.registration.team:
+            raise PermissionDenied(_("You are not in a team."))
+        if request.user.registration.team.participation.valid is not None:
+            raise PermissionDenied(_("The team is already validated or the validation is pending."))
+        return super().dispatch(request, *args, **kwargs)
+
+    @transaction.atomic()
+    def post(self, request, *args, **kwargs):
+        team = request.user.registration.team
+        request.user.registration.team = None
+        request.user.registration.save()
+        get_sympa_client().unsubscribe(request.user.email, f"equipe-{team.trigram.lower()}", False)
+        if team.students.count() + team.coachs.count() == 0:
+            team.delete()
+        return redirect(reverse_lazy("index"))
+
+
 class MyParticipationDetailView(LoginRequiredMixin, RedirectView):
     def get_redirect_url(self, *args, **kwargs):
         user = self.request.user