Refactor create organisation code into model

So the view layer is cleaner.

app/main/views/organisations.py

@@ -31,7 +31,7 @@ from app.main.forms import (
     SetLetterBranding,
 )
 from app.main.views.service_settings import get_branding_as_value_and_label
-from app.models.organisation import Organisations
+from app.models.organisation import Organisation, Organisations
 from app.models.user import InvitedOrgUser, User
 from app.utils import user_has_permissions, user_is_platform_admin
 
@@ -54,17 +54,7 @@ def add_organisation():
     form = NewOrganisationForm()
 
     if form.validate_on_submit():
-        organisations_client.create_organisation(
-            name=form.name.data,
-            crown={
-                'crown': True,
-                'non-crown': False,
-                'unknown': None,
-            }.get(form.crown_status.data),
-            organisation_type=form.organisation_type.data,
-            agreement_signed=False,
-        )
-
+        Organisation.create_from_form(form)
         return redirect(url_for('.organisations'))
 
     return render_template(

app/models/organisation.py

@@ -38,6 +38,27 @@ class Organisation(JSONModel):
     def from_service(cls, service_id):
         return cls(organisations_client.get_service_organisation(service_id))
 
+    @classmethod
+    def create_from_form(cls, form):
+        return cls.create(
+            name=form.name.data,
+            crown={
+                'crown': True,
+                'non-crown': False,
+                'unknown': None,
+            }.get(form.crown_status.data),
+            organisation_type=form.organisation_type.data,
+        )
+
+    @classmethod
+    def create(cls, name, crown, organisation_type, agreement_signed=False):
+        return cls(organisations_client.create_organisation(
+            name=name,
+            crown=crown,
+            organisation_type=organisation_type,
+            agreement_signed=agreement_signed,
+        ))
+
     def __init__(self, _dict):
 
         super().__init__(_dict)

app/notify_client/organisations_api_client.py

@@ -32,11 +32,16 @@ class OrganisationsClient(NotifyAdminAPIClient):
             raise error
 
     @cache.delete('organisations')
-    def create_organisation(self, name):
-        data = {
-            "name": name
-        }
-        return self.post(url="/organisations", data=data)
+    def create_organisation(self, name, crown, organisation_type, agreement_signed):
+        return self.post(
+            url="/organisations",
+            data={
+                "name": name,
+                "crown": crown,
+                "organisation_type": organisation_type,
+                "agreement_signed": agreement_signed,
+            }
+        )
 
     @cache.delete('domains')
     @cache.delete('organisations')