kind of kwargs passing for OpenERP on_change: with an extension like <xpath expr="//field[@name='product_id']" position="attributes"> <attribute name="context_exta">{'my_extra_param': my_extra_field}</attribute></xpath> context_exta will be injected into field context, which can be used in on_change to receive extra params without having to chan…

gistfile1.diff

diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 062c746..ccf1c9a 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -1869,15 +1869,33 @@ instance.web.form.FormWidget = instance.web.Widget.extend(instance.web.form.Invi
      */
     build_context: function() {
         // only use the model's context if there is not context on the node
-        var v_context = this.node.attrs.context;
+//        var v_context = this.node.attrs.context;
+var v_context = false;
+var fields_values = false;
+console.log(this.node.attrs);
+for (var key in this.node.attrs) {
+  if (key.substring(0, 7) == "context") {
+    if (!v_context) {
+      fields_values = this.field_manager.build_eval_context();
+      v_context = new instance.web.CompoundContext(this.node.attrs[key]).set_eval_context(fields_values);
+      console.log("first", v_context)
+    } else {
+      v_context = new instance.web.CompoundContext(this.node.attrs[key], v_context).set_eval_context(fields_values);
+      console.log("extension", v_context)
+    }
+
+  }
+}
         if (! v_context) {
             v_context = (this.field || {}).context || {};
         }
-
+/*
         if (v_context.__ref || true) { //TODO: remove true
             var fields_values = this.field_manager.build_eval_context();
             v_context = new instance.web.CompoundContext(v_context).set_eval_context(fields_values);
         }
+        console.log("ressssss", v_context)
+*/
         return v_context;
     },
     build_domain: function() {