show link to report dashboard if user has reported something

src/c3nav/mapdata/migrations/0079_auto_20191224_1858.py

@@ -0,0 +1,29 @@
+# Generated by Django 2.2.8 on 2019-12-24 17:58
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0078_reports'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='report',
+            options={'default_related_name': 'reports', 'verbose_name': 'Report', 'verbose_name_plural': 'Reports'},
+        ),
+        migrations.AlterField(
+            model_name='report',
+            name='author',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.PROTECT, related_name='reports', to=settings.AUTH_USER_MODEL, verbose_name='author'),
+        ),
+        migrations.AlterField(
+            model_name='report',
+            name='created_groups',
+            field=models.ManyToManyField(blank=True, help_text='select all groups that apply, if any', limit_choices_to={'can_report_missing': True}, related_name='reports', to='mapdata.LocationGroup', verbose_name='location groups'),
+        ),
+    ]

src/c3nav/mapdata/models/report.py

@@ -2,6 +2,7 @@ import string
 
 from django.conf import settings
 from django.contrib.auth import get_user_model
+from django.core.cache import cache
 from django.core.exceptions import ObjectDoesNotExist
 from django.db import models
 from django.db.models import Q
@@ -90,7 +91,7 @@ class Report(models.Model):
     class Meta:
         verbose_name = _('Report')
         verbose_name_plural = _('Reports')
-        default_related_name = 'report'
+        default_related_name = 'reports'
 
     @property
     def form_cls(self):
@@ -137,8 +138,20 @@ class Report(models.Model):
                                        description=self.description,
                                        reviewers=reviewers)
 
+    @classmethod
+    def user_has_reports(cls, user):
+        if not user.is_authenticated:
+            return False
+        result = cache.get('user:has-reports:%d' % user.pk, None)
+        if result is None:
+            result = user.reports.exists()
+            cache.set('user:has-reports:%d' % user.pk, result, 900)
+        return result
+
     def save(self, *args, **kwargs):
         created = self.pk is None
+        if self.author:
+            cache.delete('user:has-reports:%d' % self.author.pk)
         super().save(*args, **kwargs)
         if created:
             self.notify_reviewers()

src/c3nav/site/templates/site/account.html

@@ -29,7 +29,15 @@
             {% trans 'You can review reports' %}
         </p>
         <p>
-            <a class="button" href="{% url 'site.report_list' %}">{% trans 'Show reports' %}</a>
+            <a class="button" href="{% url 'site.report_list' filter='open' %}">{% trans 'Show reports' %}</a>
+        </p>
+    {% elif user_has_reports %}
+        <hr>
+        <p>
+            {% trans 'You have submitted reports.' %}
+        </p>
+        <p>
+            <a class="button" href="{% url 'site.report_list' filter='all' %}">{% trans 'Show your reports' %}</a>
         </p>
     {% endif %}
 

src/c3nav/site/views.py

@@ -303,7 +303,9 @@ def change_password_view(request):
 @never_cache
 @login_required(login_url='site.login')
 def account_view(request):
-    return render(request, 'site/account.html', {})
+    return render(request, 'site/account.html', {
+        'user_has_reports': Report.user_has_reports(request.user),
+    })
 
 
 @never_cache