1 files changed, 27 insertions, 0 deletions
diff --git a/backend/models/form.py b/backend/models/form.py
new file mode 100644
index 0000000..d0f0a3c
--- /dev/null
+++ b/backend/models/form.py
@@ -0,0 +1,27 @@
+import typing as t
+
+from pydantic import BaseModel, Field, validator
+
+from backend.constants import FormFeatures
+from backend.models import Question
+
+
+class Form(BaseModel):
+    """Schema model for form."""
+
+    id: str = Field(alias="_id")
+    features: t.List[str]
+    questions: t.List[Question]
+
+    @validator("features")
+    def validate_features(self, value: t.List[str]) -> t.Optional[t.List[str]]:
+        """Validates is all features in allowed list."""
+        # Uppercase everything to avoid mixed case in DB
+        value = [v.upper() for v in value]
+        if not all(v in FormFeatures.__members__.values() for v in value):
+            raise ValueError("Form features list contains one or more invalid values.")
+
+        if FormFeatures.COLLECT_EMAIL in value and FormFeatures.REQUIRES_LOGIN not in value:  # noqa
+            raise ValueError("COLLECT_EMAIL feature require REQUIRES_LOGIN feature.")
+
+        return value