[IMP] Add action help if noaction on deshbaord

bzr revid: jam@tinyerp.com-20120607103647-8ylpddobydc6ed1d

addons/web_dashboard/static/src/js/dashboard.js

@@ -231,6 +231,15 @@ instance.web.form.DashBoard = instance.web.form.FormWidget.extend({
         }
     },
     renderElement: function() {
+        var self = this;
+        //to Check dash contains any action if not then show the action help
+        var array= [];
+        _.each(this.node.children, function(column, column_index) {
+            array.push(_.include(_.pluck(column.children,"tag"),"action"));
+        });
+        if (! _.include(array,true)){
+            return self.no_result();
+        }
         // We should start with three columns available
         for (var i = this.node.children.length; i < 3; i++) {
             this.node.children.push({
@@ -242,6 +251,17 @@ instance.web.form.DashBoard = instance.web.form.FormWidget.extend({
         var rendered = QWeb.render(this.form_template, this);
         this.$element.html(rendered);
     },
+    no_result: function () {
+        if (!this.view.options.action
+            || !this.view.options.action.help) {
+                return;
+        }
+        this.$element.prepend(
+            $('<div class="oe_view_nocontent">')
+                .append($('<img>', { src: '/web_dashboard/static/src/img/view_todo_arrow.png' }))
+                .append($('<div>').html(this.view.options.action.help))
+        );
+    },
     do_reload: function() {
         var view_manager = this.view.getParent(),
             action_manager = view_manager.getParent();