Add fee field to WEIRegistration to be able to sort on validation status

apps/wei/tables.py

@@ -56,10 +56,13 @@ class WEIRegistrationTable(tables.Table):
         }
     )
 
-    validate = tables.Column(
+    validate = tables.LinkColumn(
+        'wei:wei_update_registration',
+        args=[A('pk')],
         verbose_name=_("Validate"),
-        orderable=False,
-        accessor=A('pk'),
+        orderable=True,
+        accessor='validate_status',
+        text=_("Validate"),
         attrs={
             'th': {
                 'id': 'validate-membership-header'
@@ -100,10 +103,11 @@ class WEIRegistrationTable(tables.Table):
 
         url = reverse_lazy('wei:wei_update_registration', args=(record.pk,)) + '?validate=true'
         text = _('Validate')
-        if record.fee > record.user.note.balance and not record.soge_credit:
+        status = record.validation_status
+        if status == 2:
             btn_class = 'btn-secondary'
             tooltip = _("The user does not have enough money.")
-        elif record.first_year:
+        elif status == 1:
             btn_class = 'btn-info'
             tooltip = _("The user is in first year. You may validate the credit, the algorithm will run later.")
         else:
@@ -121,6 +125,7 @@ class WEIRegistrationTable(tables.Table):
         attrs = {
             'class': 'table table-condensed table-striped table-hover'
         }
+        order_by = ('validate', 'user',)
         model = WEIRegistration
         template_name = 'django_tables2/bootstrap4.html'
         fields = ('user', 'user__first_name', 'user__last_name', 'first_year', 'deposit_check',