Move remaining project metadata ownership to templates

app/Http/Requests/UpdateProjectTicketRequest.php

@@ -51,6 +51,9 @@ class UpdateProjectTicketRequest extends FormRequest
     {
         /** @var Project $project */
         $project = $this->route('project');
+        $projectTemplateId = $project->project_template_id;
+        $ownershipColumn = $projectTemplateId === null ? 'project_id' : 'project_template_id';
+        $ownershipValue = $projectTemplateId ?? $project->id;
 
         return [
             'acceptance_criteria' => ['nullable', 'array'],
@@ -68,7 +71,9 @@ class UpdateProjectTicketRequest extends FormRequest
             'field_values.*.ticket_field_definition_id' => [
                 'required',
                 'integer',
-                Rule::exists('ticket_field_definitions', 'id')->where('project_id', $project->id),
+                Rule::exists('ticket_field_definitions', 'id')->where(
+                    fn ($query) => $query->where($ownershipColumn, $ownershipValue),
+                ),
             ],
             'field_values.*.value_number' => ['nullable', 'numeric'],
             'field_values.*.value_user_id' => ['nullable', 'integer', Rule::exists('users', 'id')],
@@ -81,12 +86,16 @@ class UpdateProjectTicketRequest extends FormRequest
             'ticket_priority_id' => [
                 'required',
                 'integer',
-                Rule::exists('ticket_priorities', 'id')->where('project_id', $project->id),
+                Rule::exists('ticket_priorities', 'id')->where(
+                    fn ($query) => $query->where($ownershipColumn, $ownershipValue),
+                ),
             ],
             'ticket_type_id' => [
                 'required',
                 'integer',
-                Rule::exists('ticket_types', 'id')->where('project_id', $project->id),
+                Rule::exists('ticket_types', 'id')->where(
+                    fn ($query) => $query->where($ownershipColumn, $ownershipValue),
+                ),
             ],
             'title' => ['required', 'string', 'max:255'],
             'story_points' => ['nullable', 'integer', 'min:0'],
@@ -141,7 +150,7 @@ class UpdateProjectTicketRequest extends FormRequest
 
                 $requestedTicketTypeId = Arr::get($validated, 'ticket_type_id');
                 $requestedTicketType = TicketType::query()
-                    ->where('project_id', $project->id)
+                    ->where($project->project_template_id === null ? 'project_id' : 'project_template_id', $project->project_template_id ?? $project->id)
                     ->find($requestedTicketTypeId);
 
                 if (