Initial

backend/app/admin.py

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+from django.contrib import admin
+from django.contrib.auth.models import Group  # , User
+from django.utils.safestring import mark_safe
+
+from .models import Organization, Member
+
+admin.site.site_header = 'Ausweis-Verwaltung'  # top-most title
+admin.site.index_title = 'Ausweis'  # title at root
+admin.site.site_title = 'Ausweis-Verwaltung'  # suffix to <title>
+
+admin.site.unregister(Group)
+# admin.site.unregister(User)
+
+
+@admin.register(Organization)
+class OrganizationAdmin(admin.ModelAdmin):
+    prepopulated_fields = {'slug': ['name']}
+    list_display = ('name', 'slug', 'member_count')
+    list_display_links = ('name', 'slug')
+    search_fields = ('name', 'slug')
+
+    @admin.display(description='Mitglieder')
+    def member_count(self, obj: 'Organization'):
+        return obj.members.count()
+
+
+@admin.register(Member)
+class MemberAdmin(admin.ModelAdmin):
+    readonly_fields = ('uuid', 'url_link_full')
+    list_display = (
+        'name', 'member_id', 'valid_since', 'valid_until', 'url_link_short')
+    search_fields = ('name', 'member_id')
+
+    @admin.display(description='URL')
+    def url_link_short(self, obj: 'Member'):
+        return mark_safe(f'<a target="blank" href="{obj.export_url}">Link</a>')
+
+    @admin.display(description='URL')
+    def url_link_full(self, obj: 'Member'):
+        return mark_safe('<a target="blank" href="{0}">{0}</a>'.format(
+            obj.export_url))