# Improves form date checking

* adds validator to make sure no dates like `01.01.1` can be accepted. All dates must be somewhat later than 01.01.1950

analysis/forms.py

@@ -13,6 +13,7 @@ from django.utils.translation import gettext_lazy as _
 from codelist.models import KonovaCode
 from codelist.settings import CODELIST_CONSERVATION_OFFICE_ID
 from konova.forms import BaseForm
+from konova.utils import validators
 
 
 class TimespanReportForm(BaseForm):
@@ -22,6 +23,7 @@ class TimespanReportForm(BaseForm):
     date_from = forms.DateField(
         label_suffix="",
         label=_("From"),
+        validators=[validators.reasonable_date],
         help_text=_("Entries created from..."),
         widget=forms.DateInput(
             attrs={
@@ -35,6 +37,7 @@ class TimespanReportForm(BaseForm):
     date_to = forms.DateField(
         label_suffix="",
         label=_("To"),
+        validators=[validators.reasonable_date],
         help_text=_("Entries created until..."),
         widget=forms.DateInput(
             attrs={