[FIX] web: don't discard x2many rows coming from default_get

Problem occured in the MRP Production wizard (with a consumed
product tracked by serial number). The opened record is a new
record, and its one2many has 2 default rows that are prefilled.
If the user edited one of the quantities in those rows, and set
an invalid value instead (e.g. a letter), the row was removed
without notice when it was focused out. This was because the
model wasn't aware that a change has been done on the record,
and as the record was flagged as new, it was simply abandonned.

2 files changed, 20 insertions, 0 deletions

diff --git a/addons/web/static/src/js/views/basic/basic_controller.js b/addons/web/static/src/js/views/basic/basic_controller.js
index 481fc0cf4dd..c899530de07 100644
--- a/addons/web/static/src/js/views/basic/basic_controller.js
+++ b/addons/web/static/src/js/views/basic/basic_controller.js
@@ -19,6 +19,7 @@ var BasicController = AbstractController.extend(FieldManagerMixin, {
     custom_events: _.extend({}, AbstractController.prototype.custom_events, FieldManagerMixin.custom_events, {
         discard_changes: '_onDiscardChanges',
         reload: '_onReload',
+        set_dirty: '_onSetDirty',
         sidebar_data_asked: '_onSidebarDataAsked',
         translate: '_onTranslate',
     }),
@@ -554,6 +555,14 @@ var BasicController = AbstractController.extend(FieldManagerMixin, {
         }
     },
     /**
+     * @private
+     * @param {OdooEvent} ev
+     */
+    _onSetDirty: function (ev) {
+        ev.stopPropagation(); // prevent other controllers from handling this request
+        this.model.setDirty(ev.data.dataPointID);
+    },
+    /**
      * Handler used to get all the data necessary when a custom action is
      * performed through the sidebar.
      *
diff --git a/addons/web/static/src/js/views/basic/basic_model.js b/addons/web/static/src/js/views/basic/basic_model.js
index 9e7fb8b78ef..57c4a1f3743 100644
--- a/addons/web/static/src/js/views/basic/basic_model.js
+++ b/addons/web/static/src/js/views/basic/basic_model.js
@@ -948,6 +948,17 @@ var BasicModel = AbstractModel.extend({
         record.fieldsInfo = _.defaults(record.fieldsInfo, viewInfo.fieldsInfo);
     },
     /**
+     * Manually sets a resource as dirty. This is used to notify that a field
+     * has been modified, but with an invalid value. In that case, the value is
+     * not sent to the basic model, but the record should still be flagged as
+     * dirty so that it isn't discarded without any warning.
+     *
+     * @param {string} id a resource id
+     */
+    setDirty: function (id) {
+        this.localData[id]._isDirty = true;
+    },
+    /**
      * For list resources, this changes the orderedBy key.
      *
      * @param {string} list_id id for the list resource