Allow to end a loan from loan admin

hardware_provisioning/admin.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 
 from __future__ import unicode_literals
+
+from datetime import date
+
 from django.contrib import admin
 from .models import ItemType, Item, Loan
 
@@ -26,4 +29,9 @@ class LoanAdmin(admin.ModelAdmin):
     list_display = ('item', 'user', 'loan_date', 'loan_date_end', 'location')
     list_filter = ('item__designation', 'user__username')
     search_fields = ('item', 'user')
+    actions = ['end_loan']
 
+    def end_loan(self, request, queryset):
+        queryset.filter(loan_date_end=None).update(
+            loan_date_end=date.today())
+    end_loan.short_description = 'Mettre fin au prêt'