[FIX] project: hide create task stage option from the project kanban

Due to the project user's inability to create a task stage, we have removed the
'create stage' option from the kanban view.

task-3511164

closes #140297

Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>

addons/project/static/src/views/project_task_kanban/project_task_kanban_renderer.js

@@ -4,12 +4,17 @@ import { KanbanRenderer } from '@web/views/kanban/kanban_renderer';
 import { ProjectTaskKanbanRecord } from './project_task_kanban_record';
 import { ProjectTaskKanbanHeader } from './project_task_kanban_header';
 import { useService } from '@web/core/utils/hooks';
+import { onWillStart } from "@odoo/owl";
 
 export class ProjectTaskKanbanRenderer extends KanbanRenderer {
     setup() {
         super.setup();
         this.action = useService('action');
+        const user = useService("user");
 
+        onWillStart(async () => {
+            this.isProjectManager = await user.hasGroup('project.group_project_manager');
+        });
     }
 
     get canMoveRecords() {
@@ -33,7 +38,7 @@ export class ProjectTaskKanbanRenderer extends KanbanRenderer {
     }
 
     canCreateGroup() {
-        return (super.canCreateGroup() && this.isProjectTasksContext() && this.props.list.isGroupedByStage) || this.props.list.isGroupedByPersonalStages;
+        return (super.canCreateGroup() && this.isProjectTasksContext() && this.props.list.isGroupedByStage && this.isProjectManager) || this.props.list.isGroupedByPersonalStages;
     }
 
     isProjectTasksContext() {

addons/project/static/tests/views/project_task_kanban/project_task_kanban_view_tests.js

@@ -0,0 +1,84 @@
+/* @odoo-module */
+
+import { registry } from "@web/core/registry";
+import { startServer } from "@bus/../tests/helpers/mock_python_environment";
+import { addModelNamesToFetch } from "@bus/../tests/helpers/model_definitions_helpers";
+import { makeFakeUserService } from "@web/../tests/helpers/mock_services";
+
+import { start } from "@mail/../tests/helpers/test_utils";
+
+import {  getFixture, click } from "@web/../tests/helpers/utils";
+import { setupViewRegistries } from "@web/../tests/views/helpers";
+
+const serviceRegistry = registry.category("services");
+
+addModelNamesToFetch(["project.project", "project.task", "project.task.type"]);
+
+let target;
+
+QUnit.module('Project', {
+    beforeEach: async function () {
+        const pyEnv = await startServer();
+        const projectId = pyEnv['project.project'].create([
+            { name: "Project One" },
+        ]);
+        const stageId = pyEnv['project.task.type'].create([
+            { name: "New" },
+        ]);
+        pyEnv['project.task'].create([
+            { name: 'task one', project_id: projectId, stage_id: stageId },
+        ]);
+        this.views = {
+            "project.task,false,kanban":
+                `<kanban js_class="project_task_kanban">
+                    <templates>
+                        <t t-name="kanban-box">
+                            <div>
+                                <field name="name"/>
+                            </div>
+                        </t>
+                    </templates>
+                </kanban>`,
+        };
+        target = getFixture();
+        setupViewRegistries();
+    }
+}, function () {
+    QUnit.test("quick create button is visible when the user has access rights.", async function (assert) {
+        serviceRegistry.add(
+            "user",
+            makeFakeUserService((group) => group === "project.group_project_manager"),
+            { force: true },
+        );
+        const { views } = this;
+        const { openView } = await start({ serverData: { views } });
+        await openView({
+            res_model: "project.task",
+            views: [[false, "kanban"]],
+            context: {
+                active_model: "project.project",
+                default_project_id: 1,
+                group_by: ["stage_id"],
+            },
+        });
+
+        assert.containsOnce(target, ".o_column_quick_create", "The quick create button should be visible.");
+        await click(target, ".o_kanban_add_column");
+    });
+
+    QUnit.test("quick create button is not visible when the user not have access rights.", async function (assert) {
+        const { views } = this;
+        const { openView } = await start({ serverData: { views } });
+        await openView({
+            res_model: "project.task",
+            views: [[false, "kanban"]],
+            context: {
+                active_model: "project.project",
+                default_project_id: 1,
+                group_by: ["stage_id"],
+            },
+        });
+
+        assert.containsNone(target, ".o_column_quick_create", "The quick create button should be hidden.");
+    });
+});