Workflow default status and computing positions

app/controllers/project_admin/workflows/statuses_controller.rb

@@ -17,7 +17,7 @@ module ProjectAdmin
         end
 
         @form = ProjectAdmin::Workflows::Statuses::BatchUpdate.new(form_params)
-        if @form.call(@workflow)
+        if @form.perform(@workflow)
           redirect_to(action: :edit_transitions)
         else
           render :edit
@@ -29,13 +29,14 @@ module ProjectAdmin
       end
 
       def batch_update_transitions
-        form_params = params.expect(workflow: { task_statuses_attributes: [[:id, { next_status_ids: [] }]] })
+        form_params = params.expect(workflow: [:default_status_id,
+                                               { task_statuses_attributes: [[:id, { next_status_ids: [] }]] }])
         if form_params[:task_statuses_attributes].respond_to?(:keys)
           form_params[:task_statuses_attributes] = form_params[:task_statuses_attributes].values
         end
 
         @form = ProjectAdmin::Workflows::Statuses::UpdateTransitions.new(form_params)
-        if @form.call(@workflow)
+        if @form.perform(@workflow)
           redirect_to project_admin_workflow_path(@project, @workflow)
         else
           render :edit_transitions

app/controllers/tasks_controller.rb

@@ -13,7 +13,7 @@ class TasksController < ApplicationController
                Task.all
              end
 
-    @tasks = @tasks.includes(:status, :project, workflow: :task_statuses)
+    @tasks = @tasks.includes(:project, workflow: %i[task_statuses default_status], status: :next_statuses)
   end
 
   def show; end
@@ -21,7 +21,8 @@ class TasksController < ApplicationController
   def new
     @project = self.current_project = fetch_project || Project.order(:name).first
     @workflow = fetch_workflow || @project.workflows.first
-    @form = Tasks::Create.new(project_id: @project.id, workflow_id: @workflow.id)
+    @form = Tasks::Create.new(project_id: @project.id, workflow_id: @workflow.id,
+                              status_id: @workflow.default_status&.id)
   end
 
   def create