From bba8fde187dabf4c8b5f8ac46bb56e43c845ae69 Mon Sep 17 00:00:00 2001
From: Xavier Morel <xmo@openerp.com>
Date: Tue, 7 Feb 2012 17:01:58 +0100
Subject: [PATCH] [ADD] handling of change_default to onchange process

bzr revid: xmo@openerp.com-20120207160158-kxbue424wa3nxz03
---
 addons/web/static/src/js/view_form.js | 49 +++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 3 deletions(-)

diff --git a/addons/web/static/src/js/view_form.js b/addons/web/static/src/js/view_form.js
index 3dcda5e5c08..16fe4ec2d47 100644
--- a/addons/web/static/src/js/view_form.js
+++ b/addons/web/static/src/js/view_form.js
@@ -314,6 +314,7 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
         var self = this;
         return this.on_change_mutex.exec(function() {
             try {
+                var response = {}, can_process_onchange = $.Deferred();
                 processed = processed || [];
                 var on_change = widget.node.attrs.on_change;
                 if (on_change) {
@@ -323,18 +324,60 @@ openerp.web.FormView = openerp.web.View.extend( /** @lends openerp.web.FormView#
                             url: '/web/dataset/onchange',
                             async: false
                         };
-                        return self.rpc(ajax, {
+                        can_process_onchange = self.rpc(ajax, {
                             model: self.dataset.model,
                             method: change_spec.method,
                             args: [(self.datarecord.id == null ? [] : [self.datarecord.id])].concat(change_spec.args),
                             context_id: change_spec.context_index == undefined ? null : change_spec.context_index + 1
-                        }).pipe(function(response) {
-                            return self.on_processed_onchange(response, processed);
+                        }).then(function(r) {
+                            _.extend(response, r);
                         });
                     } else {
                         console.warn("Wrong on_change format", on_change);
                     }
                 }
+                // fail if onchange failed
+                if (can_process_onchange.isRejected()) {
+                    return can_process_onchange;
+                }
+
+                if (widget.field['change_default']) {
+                    var fieldname = widget.name, value;
+                    if (response.value && (fieldname in response.value)) {
+                        // Use value from onchange if onchange executed
+                        value = response.value[fieldname];
+                    } else {
+                        // otherwise get form value for field
+                        value = self.fields[fieldname].get_on_change_value();
+                    }
+                    var condition = fieldname + '=' + value;
+
+                    if (value) {
+                        can_process_onchange = self.rpc({
+                            url: '/web/dataset/call',
+                            async: false
+                        }, {
+                            model: 'ir.values',
+                            method: 'get_defaults',
+                            args: [self.model, condition]
+                        }).then(function (results) {
+                            if (!results.length) { return; }
+                            if (!response.value) {
+                                response.value = {};
+                            }
+                            for(var i=0; i<results.length; ++i) {
+                                // [whatever, key, value]
+                                var triplet = results[i];
+                                response.value[triplet[1]] = triplet[2];
+                            }
+                        });
+                    }
+                }
+                if (can_process_onchange.isRejected()) {
+                    return can_process_onchange;
+                }
+
+                return self.on_processed_onchange(response, processed);
             } catch(e) {
                 console.error(e);
                 return $.Deferred().reject();