[FIX] web: FieldMany2ManyBinaryMultiFiles must extend ReinitializeFieldMixin

The add attachment button should be displayed while being in edit mode, but not in view mode
As the widget depends on the form actual mode, the widget should be re-rendered each time the actual mode changes

This is the point of the ReinitializeFieldMixin class

diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index cfada94..077b05c 100644 (file)
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -5222,7 +5222,7 @@ instance.web.form.FieldBinaryImage = instance.web.form.FieldBinary.extend({
  * Options on attribute ; "blockui" {Boolean} block the UI or not
  * during the file is uploading
  */
-instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractField.extend({
+instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractField.extend(instance.web.form.ReinitializeFieldMixin, {
     template: "FieldBinaryFileUploader",
     init: function(field_manager, node) {
         this._super(field_manager, node);
@@ -5236,7 +5236,8 @@ instance.web.form.FieldMany2ManyBinaryMultiFiles = instance.web.form.AbstractFie
         $(window).on(this.fileupload_id, _.bind(this.on_file_loaded, this));
     },
     start: function() {
-        this._super(this);
+        this._super();
+        instance.web.form.ReinitializeFieldMixin.start.call(this);
         this.$el.on('change', 'input.oe_form_binary_file', this.on_file_change );
     },
     set_value: function(value_) {