feat: refactor create logic

app/controllers/organisation_relationships_controller.rb

@@ -30,37 +30,30 @@ class OrganisationRelationshipsController < ApplicationController
   end
 
   def create_housing_provider
-    create(0)
+    child_organisation_id = @organisation.id
-  end
+    parent_organisation_id = related_organisation_id
-
-  def create_managing_agent
-    create(1)
-  end
-
-  def create(relationship_type)
     if related_organisation_id.empty?
       @organisation.errors.add :related_organisation_id, "You must choose a housing provider"
-      @organisations = Organisation.where.not(id: @organisation.id).pluck(:id, :name)
+      @organisations = Organisation.where.not(id: child_organisation_id).pluck(:id, :name)
       render 'organisation_relationships/add_housing_provider'
       return
-    end
+    elsif OrganisationRelationship.exists?(child_organisation_id:, parent_organisation_id:, relationship_type: 0)
-    case relationship_type
-    when 0
-      if OrganisationRelationship.exists?(child_organisation_id: @organisation.id, parent_organisation_id: related_organisation_id, relationship_type: 0)
       @organisation.errors.add :related_organisation_id, "You have already added this housing provider"
-        @organisations = Organisation.where.not(id: @organisation.id).pluck(:id, :name)
+      @organisations = Organisation.where.not(id: child_organisation_id).pluck(:id, :name)
       render 'organisation_relationships/add_housing_provider'
-      else
+      return
-        @resource = OrganisationRelationship.new(child_organisation_id: @organisation.id, parent_organisation_id: related_organisation_id, relationship_type: 0)
+    end
-        @resource.save!
+    create(child_organisation_id, parent_organisation_id, 0)
     redirect_to housing_providers_organisation_path(related_organisation_id:)
   end
-    when 1
+
-      @resource = OrganisationRelationship.new(child_organisation_id: related_organisation_id, parent_organisation_id: @organisation.id, relationship_type: 1)
+  def create_managing_agent
-      @resource.save!
+    create(related_organisation_id, @organisation.id, 1)
-      redirect_to managing_agents_organisation_path
   end
 
+  def create(child_organisation_id, parent_organisation_id, relationship_type)
+    @resource = OrganisationRelationship.new(child_organisation_id:, parent_organisation_id:, relationship_type:)
+    @resource.save!
   end
 
 private
@@ -79,7 +72,7 @@ private
   end
 
   def authenticate_scope!
-    if current_user.organisation != organisation
+    if current_user.organisation != organisation && !current_user.support?
       render_not_found
     end
   end

app/views/organisation_relationships/housing_providers.html.erb

@@ -23,15 +23,22 @@
       notification_banner.heading(text: "#{Organisation.find(params["related_organisation_id"]).name} is now one of your housing providers")
     end %>
   <% end %>
+  <% if @total_count == 0 %>
+    <p class="govuk-body">This organisation does not currently have any housing providers.</p>
+  <% else %>
     <p class="govuk-body">This organisation can submit logs for its housing providers.</p>
+  <% end %>
+
 <% else %>
   <%= render partial: "organisations/headings", locals: { main: "Your housing providers", sub: nil } %>
+  <% if @total_count == 0 %>
+    <p class="govuk-body">Your organisation does not currently have any housing providers.</p>
+  <% else %>
     <p class="govuk-body">Your organisation can submit logs for its housing providers.</p>
+  <% end %>
 <% end %>
 
-<% if @total_count == 0 %>
+
-  <p class="govuk-body">This organisation does not currently have any housing providers.</p>
-<% end %>
 <% if current_user.support? %>
   <%= govuk_button_link_to "Add a housing provider", housing_providers_add_organisation_path(organisation_id: @organisation.id), html: { method: :get } %>
   <% elsif current_user.data_coordinator? %>