teams/models.py

@@ -68,3 +68,17 @@ class TeamsUsers(CreatedModifiedMixin, models.Model):
                 extension.save(update_fields={'team'})
 
         return super().delete()
+
+    def may_leave(self) -> bool:
+        nr_of_managers = TeamsUsers.objects.filter(role=TEAM_ROLE_MANAGER, team=self.team).count()
+        user_is_manager = (
+            TeamsUsers.objects.filter(
+                role=TEAM_ROLE_MANAGER,
+                team=self.team,
+                user=self.user,
+            ).first()
+            is not None
+        )
+        if user_is_manager and nr_of_managers < 2:
+            return False
+        return True

teams/templates/teams/team_list.html

@@ -4,7 +4,7 @@
   <h1 class="mb-3">Teams</h1>
   <div class="row">
     <div class="col">
-      {% if user.team_users.all %}
+      {% if team_memberships %}
         <table class="table table-hover">
           <thead>
             <tr>
@@ -21,7 +21,7 @@
             </tr>
           </thead>
           <tbody>
-              {% for team_member in user.team_users.all %}
+              {% for team_member in team_memberships %}
                 {% with team=team_member.team %}
                   <tr>
                     <td>
@@ -38,14 +38,16 @@
                       </div>
                     </td>
                     <td>
-                      {# TODO: @back-end disable dropdown btn leave team if user is the only manager #}
                       <div class="dropdown">
-                        <button class="btn btn-link dropdown-toggle js-dropdown-toggle" data-toggle-menu-id="team-{{ team.id }}">
+                        <button class="btn btn-link dropdown-toggle js-dropdown-toggle" data-toggle-menu-id="team-{{ team.slug }}">
                           <i class="i-more-vertical"></i>
                         </button>
-                        <ul class="dropdown-menu dropdown-menu-right js-dropdown-menu" id="team-{{ team.id }}">
+                        {{ team.user_may_leave }}
+                        <ul class="dropdown-menu dropdown-menu-right js-dropdown-menu" id="team-{{ team.slug }}">
                           <li>
-                            <a class="dropdown-item {% comment %}dropdown-item-disabled{% endcomment %}" href="{% url 'teams:leave-team' slug=team.slug %}"><i class="i-log-out"></i>Leave Team</a>
+                            <a class="dropdown-item {% if not team_member.may_leave %}dropdown-item-disabled{% endif %}" href="{% url 'teams:leave-team' slug=team.slug %}">
+                              <i class="i-log-out"></i>Leave Team
+                            </a>
                           </li>
                         </ul>
                       </div>

teams/views.py

@@ -11,8 +11,10 @@ from teams.models import Team, TeamsUsers
 class TeamsView(LoginRequiredMixin, ListView):
     model = Team
 
-    def get_queryset(self):
-        return self.request.user.teams.all()
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context['team_memberships'] = self.request.user.team_users.select_related('team').all()
+        return context
 
 
 class LeaveTeamView(LoginRequiredMixin, DetailView):