Default owning organisation if created from their page

app/controllers/case_logs_controller.rb

@@ -128,8 +128,8 @@ private
     return {} unless params[:case_log]
 
     permitted = params.require(:case_log).permit(CaseLog.editable_fields)
-    permitted["owning_organisation"] = Organisation.find_by(permitted["owning_organisation"])
-    permitted["managing_organisation"] = Organisation.find_by(permitted["managing_organisation"])
+    owning_id = permitted["owning_organisation_id"]
+    permitted["owning_organisation"] = Organisation.find(owning_id) if owning_id
     permitted
   end
 

app/models/form/setup/questions/created_by_id.rb

@@ -7,10 +7,9 @@ class Form::Setup::Questions::CreatedById < ::Form::Question
     @hint_text = ""
     @type = "select"
     @page = page
-    @answer_options = answer_options_values
   end
 
-  def answer_options_values
+  def answer_options
     answer_opts = { "" => "Select an option" }
     return answer_opts unless ActiveRecord::Base.connected?
 

app/models/form/setup/questions/owning_organisation_id.rb

@@ -7,10 +7,9 @@ class Form::Setup::Questions::OwningOrganisationId < ::Form::Question
     @hint_text = ""
     @type = "select"
     @page = page
-    @answer_options = answer_options_values
   end
 
-  def answer_options_values
+  def answer_options
     answer_opts = { "" => "Select an option" }
     return answer_opts unless ActiveRecord::Base.connected?
 

app/views/organisations/logs.html.erb

@@ -12,6 +12,10 @@
 <h2 class="govuk-visually-hidden">Logs</h2>
 
 <div class="app-filter-layout" data-controller="filter-layout">
+  <div class="govuk-button-group app-filter-toggle">
+    <%= govuk_button_to "Create a new lettings log for #{@organisation.name}", case_logs_path(case_log: { owning_organisation_id: @organisation.id }, method: :post) %>
+  </div>
+
   <%= render partial: "case_logs/log_filters" %>
   <div class="app-filter-layout__content">
     <%= render SearchComponent.new(current_user:, search_label: "Search by log ID, tenant code, property reference or postcode", value: @searched) %>

spec/features/organisation_spec.rb

@@ -111,6 +111,18 @@ RSpec.describe "User Features" do
         visit("/organisations/#{org_id}/logs")
       end
 
+      it "shows a create button for that organisation" do
+        expect(page).to have_button("Create a new lettings log for #{org_name}")
+      end
+
+      context "when creating a log for that organisation" do
+        it "pre-fills the value for owning organisation for that log" do
+          click_button("Create a new lettings log for #{org_name}")
+          click_link("Set up this lettings log")
+          expect(page).to have_content(org_name)
+        end
+      end
+
       context "when searching for specific logs" do
         it "displays the logs belonging to the same organisation" do
           expect(page).to have_content(log_to_search.id)