Basic validation on start and end dates for Engagement

- form validation when end date is before the start date

1 files changed, 11 insertions, 0 deletions

diff --git a/engagements/forms.py b/engagements/forms.py
index 2532892..0b097df 100644
--- a/engagements/forms.py
+++ b/engagements/forms.py
@@ -1,5 +1,6 @@
 from django import forms
 from django.forms.widgets import HiddenInput
+from django.core.exceptions import ValidationError
 
 from .models import Engagement, EngagementEffort
 
@@ -187,6 +188,16 @@ class EngagementCreateForm(forms.ModelForm):
         except KeyError:
             pass
 
+    def clean_proposed_end_date(self):
+        proposed_start_date = self.cleaned_data["proposed_start_date"]
+        proposed_end_date = self.cleaned_data["proposed_end_date"]
+
+        if proposed_start_date and proposed_end_date:
+            if proposed_start_date > proposed_end_date:
+                raise ValidationError("The proposed start date must be before the proposed end date.")
+
+        return proposed_start_date
+
     class Meta:
         model = Engagement
         fields = [