[FIX] web: various small issues in form view onchange/one2many

- Issue: Edit sale.order form view, add new line, change product who have
  taxes and click quickly on save (with slow network) => error message.
  Because some deferreds are lost.
- reduce number of reads and onchange for x2m widgets
- remove before_save method and use commit_value (the issue was that if the
  before_save and the change trigger an onchange, the onchange deferred is not
  checked before saving the content.

1 files changed, 0 insertions, 6 deletions

diff --git a/addons/web/static/src/js/views/form_common.js b/addons/web/static/src/js/views/form_common.js
index d9aba2ec71a..a9ee9d4a1d7 100644
--- a/addons/web/static/src/js/views/form_common.js
+++ b/addons/web/static/src/js/views/form_common.js
@@ -632,12 +632,6 @@ var FieldInterface = {
         the field to save its value before reading it using get_value(). Must return a promise.
     */
     commit_value: function() {},
-    /*
-        The form view call before_save before save data and if before_save return a deferred, 
-        the form view wait that all deferred are resolve or fail.
-        If the deferred is rejected, the field is invalidate
-    */
-    before_save: function() {},
 };
 
 /**