[IMP] project: ease stage deletion

Before this commit, deleting a stage with tasks, the user received an
error.

With this commit, when deleting a stage containing tasks, a wizard
offers the choice to move the tasks to another stage.

closes odoo/odoo#46410

Taskid: 1869030
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/addons/project/static/src/js/project_kanban.js b/addons/project/static/src/js/project_kanban.js
new file mode 100644
index 00000000000..812bfc165bc
--- /dev/null
+++ b/addons/project/static/src/js/project_kanban.js
@@ -0,0 +1,48 @@
+odoo.define('project.project_kanban', function (require) {
+'use strict';
+
+var KanbanController = require('web.KanbanController');
+var KanbanView = require('web.KanbanView');
+var KanbanColumn = require('web.KanbanColumn');
+var view_registry = require('web.view_registry');
+
+var ProjectKanbanController = KanbanController.extend({
+    custom_events: _.extend({}, KanbanController.prototype.custom_events, {
+        'kanban_column_delete_wizard': '_onDeleteColumnWizard',
+    }),
+
+    _onDeleteColumnWizard: function (ev) {
+        ev.stopPropagation();
+        const self = this;
+        const column_id = ev.target.id;
+        var state = this.model.get(this.handle, {raw: true});
+        this._rpc({
+            model: 'project.task.type',
+            method: 'unlink_wizard',
+            args: [column_id],
+            context: state.getContext(),
+        }).then(function (res) {
+            self.do_action(res);
+        });
+    }
+});
+
+var ProjectKanbanView = KanbanView.extend({
+    config: _.extend({}, KanbanView.prototype.config, {
+        Controller: ProjectKanbanController
+    }),
+});
+
+KanbanColumn.include({
+    _onDeleteColumn: function (event) {
+        event.preventDefault();
+        if (this.modelName === 'project.task') {
+            this.trigger_up('kanban_column_delete_wizard');
+            return;
+        }
+        this._super.apply(this, arguments);
+    }
+});
+
+view_registry.add('project_kanban', ProjectKanbanView);
+});