Add new dashboard item to display the total page count.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/documents/apps.py

@@ -35,7 +35,8 @@ from navigation import SourceColumn
 from rest_api.fields import DynamicSerializerField
 
 from .dashboard_widgets import (
-    DashboardWidgetDocumentsInTrash, DashboardWidgetDocumentsNewThisMonth,
+    DashboardWidgetDocumentPagesTotal, DashboardWidgetDocumentsInTrash,
+    DashboardWidgetDocumentsNewThisMonth,
     DashboardWidgetDocumentsPagesNewThisMonth, DashboardWidgetDocumentsTotal,
     DashboardWidgetDocumentsTypesTotal,
 )
@@ -394,16 +395,19 @@ class DocumentsApp(MayanAppConfig):
             widget=DashboardWidgetDocumentsTotal, order=0
         )
         dashboard_main.add_widget(
-            widget=DashboardWidgetDocumentsInTrash, order=1
+            widget=DashboardWidgetDocumentPagesTotal, order=1
         )
         dashboard_main.add_widget(
-            widget=DashboardWidgetDocumentsTypesTotal, order=2
+            widget=DashboardWidgetDocumentsInTrash, order=2
         )
         dashboard_main.add_widget(
-            widget=DashboardWidgetDocumentsNewThisMonth, order=3
+            widget=DashboardWidgetDocumentsTypesTotal, order=3
         )
         dashboard_main.add_widget(
-            widget=DashboardWidgetDocumentsPagesNewThisMonth, order=4
+            widget=DashboardWidgetDocumentsNewThisMonth, order=4
+        )
+        dashboard_main.add_widget(
+            widget=DashboardWidgetDocumentsPagesNewThisMonth, order=5
         )
 
         menu_documents.bind_links(

mayan/apps/documents/dashboard_widgets.py

@@ -19,6 +19,28 @@ from .statistics import (
 )
 
 
+class DashboardWidgetDocumentPagesTotal(DashboardWidgetNumeric):
+    icon_class = icon_dashboard_pages_per_month
+    label = _('Total pages')
+    link = reverse_lazy(
+        'statistics:statistic_detail',
+        args=('total-document-pages-at-each-month',)
+    )
+
+    def render(self, request):
+        AccessControlList = apps.get_model(
+            app_label='acls', model_name='AccessControlList'
+        )
+        DocumentPage = apps.get_model(
+            app_label='documents', model_name='DocumentPage'
+        )
+        self.count = AccessControlList.objects.filter_by_access(
+            permission=permission_document_view, user=request.user,
+            queryset=DocumentPage.objects.all()
+        ).count()
+        return super(DashboardWidgetDocumentPagesTotal, self).render(request)
+
+
 class DashboardWidgetDocumentsTotal(DashboardWidgetNumeric):
     icon_class = icon_dashboard_total_document
     label = _('Total documents')