Added a boolean column to templates called is_letter_contact_blank.

If is_letter_contact_blank then the user has set the letter contact block to be blank on purpose
ELSE IF is_letter_contact_blank is false THEN use the template default
IF template default is blank THEN the service_letter_contact is blank use the service default

app/models.py

@@ -578,6 +578,10 @@ class TemplateBase(db.Model):
     content = db.Column(db.Text, nullable=False)
     archived = db.Column(db.Boolean, nullable=False, default=False)
     subject = db.Column(db.Text)
+    is_letter_contact_blank = db.Column(db.Boolean, nullable=False, default=False)
+
+    # if is_letter_contact = True then service_letter_contact must be null.
+    CheckConstraint("Not(is_letter_contact_blank = True and service_letter_contact_id is not Null)")
 
     @declared_attr
     def service_id(cls):

app/template/rest.py

@@ -120,7 +120,6 @@ def get_template_by_id_and_service_id(service_id, template_id):
 def preview_template_by_id_and_service_id(service_id, template_id):
     fetched_template = dao_get_template_by_id_and_service_id(template_id=template_id, service_id=service_id)
     data = template_schema.dump(fetched_template).data
-    print(data)
     template_object = get_template_instance(data, values=request.args.to_dict())
 
     if template_object.missing_data: