[IMP] purchase: enable sample data in dashboard

For the sample data feature to work, rpcs done by the view need to
be mocked. This commit properly mocks the 'retrieve_dashboard'
function. It also remove custom no content helper style that was
conflicting with the new style in web.

Task 2232801

X-original-commit: 300bc6d9ac2c1bea823bfc80675ffcf8e5dd3e9f

addons/purchase/static/src/js/purchase_dashboard.js

@@ -18,10 +18,21 @@ var KanbanController = require('web.KanbanController');
 var KanbanModel = require('web.KanbanModel');
 var KanbanRenderer = require('web.KanbanRenderer');
 var KanbanView = require('web.KanbanView');
+var SampleServer = require('web.SampleServer');
 var view_registry = require('web.view_registry');
 
 var QWeb = core.qweb;
 
+// Add mock of method 'retrieve_dashboard' in SampleServer, so that we can have
+// the sample data in empty purchase kanban and list view
+let dashboardValues;
+SampleServer.mockRegistry.add('purchase.order', {
+    retrieve_dashboard: () => {
+        return Object.assign({}, dashboardValues);
+    },
+});
+
+
 //--------------------------------------------------------------------------
 // List View
 //--------------------------------------------------------------------------
@@ -107,7 +118,7 @@ var PurchaseListDashboardModel = ListModel.extend({
         });
         return Promise.all([super_def, dashboard_def]).then(function(results) {
             var id = results[0];
-            var dashboardValues = results[1];
+            dashboardValues = results[1];
             self.dashboardValues[id] = dashboardValues;
             return id;
         });
@@ -222,7 +233,7 @@ var PurchaseKanbanDashboardModel = KanbanModel.extend({
         });
         return Promise.all([super_def, dashboard_def]).then(function(results) {
             var id = results[0];
-            var dashboardValues = results[1];
+            dashboardValues = results[1];
             self.dashboardValues[id] = dashboardValues;
             return id;
         });

addons/purchase/static/src/scss/purchase.scss

@@ -52,9 +52,3 @@
         }
     }
 }
-
-.o_purchase_dashboard ~ .o_view_nocontent {
-    // To prevent overlapping from inherited values
-    position: relative;
-    width: 100%;
-}