added a qr code image field for any future event (contains a URL to a…

…n image that should be of the qr code's location)

scavenger2022/core/admin.py

@@ -1,6 +1,5 @@
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin as UserAdmin_
-from django.utils.html import format_html
 from django.utils.safestring import mark_safe
 from django.utils.translation import gettext_lazy as _l
 from django.urls import reverse
@@ -59,8 +58,8 @@ def path(self, team):
 
 
 class QrCodeAdmin(admin.ModelAdmin):
-    fields = ["short", "location", "notes", "key"]
-    readonly_fields = ["url", "key"]
+    fields = ["short", "location", "notes", "key", "image_tag", "image_url"]
+    readonly_fields = ["url", "key", "image_tag"]
     list_display = ["location", "url"]
     inlines = [HintsInLine]
     form = QrCodeAdminForm

scavenger2022/core/migrations/0018_qrcode_image_url.py

@@ -0,0 +1,21 @@
+# Generated by Django 4.1.4 on 2023-01-08 03:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0017_alter_user_team"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="qrcode",
+            name="image_url",
+            field=models.URLField(
+                blank=True,
+                help_text="A URL to an image of where the QR code is located (try imgur)",
+            ),
+        ),
+    ]

scavenger2022/core/models.py

@@ -6,6 +6,7 @@
 from django.conf import settings
 from django.contrib.auth.models import AbstractUser
 from django.db import models
+from django.utils.html import format_html
 
 
 def generate_invite_code():
@@ -44,6 +45,19 @@ class QrCode(models.Model):
     )
     notes = models.TextField(help_text="Internal notes", blank=True)
     key = models.CharField(max_length=64, unique=True, default=generate_hint_key)
+    image_url = models.URLField(
+        help_text="A URL to an image of where the QR code is located (try imgur)",
+        blank=True,
+    )
+
+    def image_tag(self):
+        from django.utils.html import escape
+
+        if self.image_url:
+            return format_html('<img src="%s" />' % escape(self.image_url))
+
+    image_tag.short_description = "QR Image"
+    image_tag.allow_tags = True
 
     def __str__(self):
         return f"{self.id} {self.short or self.location}"