add link to fetmeeting

fet2020/finance/admin.py

@@ -1,9 +1,12 @@
+from django.conf import settings
 from django.contrib import admin, messages
 from django.http import HttpResponseRedirect
 from django.utils.html import format_html
 from django.utils.translation import ngettext
 from segno import helpers
 
+from posts.models import FetMeeting
+
 from .forms import (
     BankDataAdminForm,
     BillAdminForm,
@@ -268,6 +271,9 @@ class ResolutionAdmin(admin.ModelAdmin):
     ordering = ["-id"]
     search_fields = ["name", "id"]
 
+    readonly_fields = [
+        "fetmeeting",
+    ]
     fieldsets = (
         (
             None,
@@ -298,6 +304,7 @@ class ResolutionAdmin(admin.ModelAdmin):
                 "fields": (
                     "voting",
                     "voting_text",
+                    "fetmeeting",
                 ),
             },
         ),
@@ -331,6 +338,17 @@ class ResolutionAdmin(admin.ModelAdmin):
 
         return f"{ total }"
 
+    @admin.display(description="Fachschaftssitzung")
+    def fetmeeting(self, obj):
+        fetmeeting = FetMeeting.objects.get_queryset().filter(date=obj.date).first()
+        print(fetmeeting)
+
+        if fetmeeting is not None:
+            link = f"https://{settings.HOST_NAME}/posts/{fetmeeting.slug}/"
+            return format_html(f"<a href='{link}' target='_blank'>Link zur Fachschaftssitzung</a>")
+
+        return format_html("-")
+
 
 @admin.register(Wiref)
 class WirefAdmin(admin.ModelAdmin):