Started work on improving asset form update and validation - requires de-spaghettifying of asset_update.html before continuing

assets/forms.py

@@ -1,4 +1,5 @@
 from django import forms
+from django.core.exceptions import ValidationError
 
 from assets import models
 
@@ -7,7 +8,15 @@ class AssetForm(forms.ModelForm):
     class Meta:
         model = models.Asset
         fields = '__all__'
+    
+    def __init__(self, *args, **kwargs): 
+        super(AssetForm, self).__init__(*args, **kwargs)                       
+        self.fields['asset_id'].disabled = True #You should not be able to change the asset ID, either in update or create
 
+    def clean_date_sold(self):
+        if self.cleaned_data["date_sold"] and self.cleaned_data["date_acquired"] > self.cleaned_data["date_sold"]:
+            raise ValidationError("Cannot sell an item before it is acquired")
+        return self.cleaned_data["date_sold"]
 
 class SupplierForm(forms.ModelForm):
     class Meta: