policies/expression: add Expression based policy

passbook/policies/expression/forms.py

@@ -0,0 +1,22 @@
+"""passbook Expression Policy forms"""
+
+from django import forms
+
+from passbook.policies.expression.models import ExpressionPolicy
+from passbook.policies.forms import GENERAL_FIELDS
+
+
+class ExpressionPolicyForm(forms.ModelForm):
+    """ExpressionPolicy Form"""
+
+    template_name = "policy/expression/form.html"
+
+    class Meta:
+
+        model = ExpressionPolicy
+        fields = GENERAL_FIELDS + [
+            "expression",
+        ]
+        widgets = {
+            "name": forms.TextInput(),
+        }