add PINs for shift trades

shiftregister/fallback/admin.py

@@ -30,7 +30,7 @@ class FallbackAssignmentInline(admin.TabularInline):
 
 @admin.register(TeamMember)
 class TeamMemberAdmin(admin.ModelAdmin):
-    fields = ("id", "name", "comment", "url")
+    fields = ("id", "name", "comment", "url", "pin")
     readonly_fields = ("id", "url")
     list_display = ("name", "comment", "shift_count")
     ordering = ("name",)

shiftregister/fallback/migrations/0010_teammember_pin.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.0.4 on 2025-05-14 11:55
+
+from django.db import migrations, models
+
+import shiftregister.fallback.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("fallback", "0009_fallbackassignment_traded_to"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="teammember",
+            name="pin",
+            field=models.IntegerField(
+                default=shiftregister.fallback.models.generate_pin
+            ),
+        ),
+    ]

shiftregister/fallback/models.py

@@ -2,7 +2,7 @@ import math
 import secrets
 from base64 import urlsafe_b64encode
 from datetime import datetime, time
-from random import random
+from random import randint, random
 
 import sentry_sdk
 from django.db.models import Count, Exists, ExpressionWrapper, Max, OuterRef, Sum
@@ -17,10 +17,15 @@ def generate_id():
     return int.from_bytes(secrets.token_bytes(3), byteorder="big")
 
 
+def generate_pin():
+    return randint(1000, 9999)
+
+
 class TeamMember(models.Model):
     id = models.IntegerField(default=generate_id, editable=False, primary_key=True)
     name = models.CharField(max_length=100)
     comment = models.CharField(max_length=100, blank=True, default="")
+    pin = models.IntegerField(default=generate_pin)
     fallback_shifts = models.ManyToManyField(
         Shift, through="FallbackAssignment", through_fields=("team_member", "shift")
     )

shiftregister/fallback/templates/my_fallback_shifts.html

@@ -16,12 +16,24 @@
         {% csrf_token %}
         <div class="field has-addons">
             <div class="control">
-                <input class="input" type="number" name="assignment_id" placeholder="Assignment ID" required>
+                {{ trade_form.assignment_id }}
+            </div>
+            <div class="control">
+                {{ trade_form.pin }}
             </div>
             <div class="control">
                 <button type="submit" name="take_shift" class="button is-info">Übernehmen/Entfernen</button>
             </div>
         </div>
+        {% if form.errors %}
+        <div class="field">
+            {% for field in trade_form %}
+                {% for error in field.errors %}
+                    <p class="help is-danger">{{ error }}</p>
+                {% endfor %}
+            {% endfor %}
+        </div>
+        {% endif %}
     </form>
 </div>
 
@@ -31,6 +43,8 @@
 
 {{ team_member.url }}
 
+Deine PIN um Schichten zu übernehmen ist {{ team_member.pin }}
+
 Deine Schichten werden in den nächsten Tagen weniger werden, wenn wir alle Schichten unter mehr Teammitgliedern verteilen.
 Du kannst unter dem Link immer nachschauen, welche Schichten du noch hast und welche schon von Helfis belegt sind.
 Bei Schichten mit mehreren Personen, bei denen nicht alle von Helfis belegt sind, koordiniere dich bitte mit den anderen Teammitgliedern, wer von euch die Schicht übernimmt.

shiftregister/fallback/views.py

@@ -1,5 +1,6 @@
 from base64 import urlsafe_b64decode
 
+from django import forms
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.db.models import Count, Q
@@ -9,7 +10,14 @@ from django.urls import reverse
 
 from shiftregister.fallback.models import FallbackAssignment, TeamMember
 
-# Create your views here.
+
+class TradeForm(forms.Form):
+    assignment_id = forms.IntegerField(
+        widget=forms.NumberInput(attrs={"class": "input", "placeholder": "Schicht-ID"})
+    )
+    pin = forms.IntegerField(
+        widget=forms.NumberInput(attrs={"class": "input", "placeholder": "Deine PIN"})
+    )
 
 
 def my_fallback_shifts(request, team_member_id):
@@ -23,12 +31,23 @@ def my_fallback_shifts(request, team_member_id):
     team_member = get_object_or_404(TeamMember, pk=team_member_id)
 
     is_draw = False
+    trade_form = TradeForm(
+        request.POST
+        if request.method == "POST" and "take_shift" in request.POST
+        else None
+    )
+
     if request.method == "POST":
         if "draw_shifts" in request.POST:
             team_member.assign_random_shifts()
             is_draw = True
-        elif "take_shift" in request.POST:
-            assignment_id = request.POST.get("assignment_id")
+        elif "take_shift" in request.POST and trade_form.is_valid():
+            assignment_id = trade_form.cleaned_data["assignment_id"]
+            pin = trade_form.cleaned_data["pin"]
+
+            if pin != team_member.pin:
+                messages.error(request, "Ungültige PIN")
+            else:
                 try:
                     assignment = FallbackAssignment.objects.get(pk=assignment_id)
                     if assignment.team_member == team_member:
@@ -63,6 +82,7 @@ def my_fallback_shifts(request, team_member_id):
         "team_member": team_member,
         "assignments": assignments,
         "is_draw": is_draw,
+        "trade_form": trade_form,
     }
     return render(request, "my_fallback_shifts.html", context)