tests/api/test_all.py

@@ -145,6 +145,26 @@ def test_validate_condition(pub):
     resp = get_app(pub).get('/api/validate-condition?type=unknown&value_unknown=2')
     assert resp.json['msg'] == 'unknown condition type'
 
+    resp = get_app(pub).get('/api/validate-condition?type=django&value_django=today > "2023"')
+    assert resp.json == {'msg': ''}
+    resp = get_app(pub).get(
+        '/api/validate-condition?type=django&value_django=today > "2023"&warn-on-datetime=false'
+    )
+    assert resp.json == {'msg': ''}
+    resp = get_app(pub).get(
+        '/api/validate-condition?type=django&value_django=today > "2023"&warn-on-datetime=true'
+    )
+    assert resp.json['msg'].startswith('Warning: conditions are only evaluated when entering')
+
+    resp = get_app(pub).get(
+        '/api/validate-condition?type=django&value_django=x|age_in_days > 10&warn-on-datetime=true'
+    )
+    assert resp.json['msg'].startswith('Warning: conditions are only evaluated when entering')
+    resp = get_app(pub).get(
+        '/api/validate-condition?type=django&value_django=x|age_in_days|abs > 10&warn-on-datetime=true'
+    )
+    assert resp.json['msg'].startswith('Warning: conditions are only evaluated when entering')
+
 
 def test_reverse_geocoding(pub):
     with responses.RequestsMock() as rsps:

wcs/api.py

@@ -18,6 +18,7 @@ import base64
 import copy
 import datetime
 import json
+import re
 import urllib.parse
 
 from django.http import HttpResponse, HttpResponseBadRequest, JsonResponse
@@ -1476,6 +1477,15 @@ def validate_condition(request, *args, **kwargs):
         Condition(condition).validate()
     except ValidationError as e:
         hint['msg'] = str(e)
+    else:
+        if request.GET.get('warn-on-datetime') == 'true' and condition['type'] == 'django':
+            variables = re.compile(r'\b(today|now)\b')
+            filters = re.compile(r'\|age_in_(years|months|days|hours)')
+            if variables.search(condition['value']) or filters.search(condition['value']):
+                hint['msg'] = _(
+                    'Warning: conditions are only evaluated when entering the action, '
+                    'you may need to set a timeout if you want it to be evaluated regularly.'
+                )
     return JsonResponse(hint)
 
 

wcs/qommon/static/js/qommon.admin.js

@@ -137,6 +137,7 @@ $(function() {
         $widget.find('select, input').each(function(idx, elem) {
           data[$(elem).attr('name').replace(prefix, '')] = $(elem).val();
         });
+        data['warn-on-datetime'] = ($('#form_timeout').length && ! $('#form_timeout').val());
         $.ajax({
           url: $widget.data('validation-url'),
           data: data,