Use timezone aware date for document statistics

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

HISTORY.rst

@@ -139,6 +139,7 @@
   These are now a fallback if the new 'DATABASES'
   setting is not specified.
 - Refactor the initial setting bootstrap code.
+- Use timezone aware date for document statistics
 
 3.2.10 (2019-XX-XX)
 ===================

mayan/apps/documents/statistics.py

@@ -1,8 +1,7 @@
 from __future__ import absolute_import, unicode_literals
 
-import datetime
-
 from django.apps import apps
+from django.utils import timezone
 from django.utils.encoding import force_text
 from django.utils.translation import ugettext_lazy as _
 
@@ -26,14 +25,14 @@ def new_documents_per_month():
 
     qss = qsstats.QuerySetStats(Document.passthrough.all(), 'date_added')
 
-    today = datetime.date.today()
-    this_year = datetime.date(year=today.year, month=1, day=1)
+    now = timezone.now().date()
+    start = timezone.datetime(year=now.year, month=1, day=1).date()
 
     return {
         'series': {
             'Documents': map(
                 lambda x: {force_text(MONTH_NAMES[x[0].month]): x[1]},
-                qss.time_series(start=this_year, end=today, interval='months')
+                qss.time_series(start=start, end=now, interval='months')
             )
         }
     }
@@ -48,14 +47,14 @@ def new_document_pages_per_month():
         DocumentPage.objects.all(), 'document_version__document__date_added'
     )
 
-    today = datetime.date.today()
-    this_year = datetime.date(year=today.year, month=1, day=1)
+    now = timezone.now().date()
+    start = timezone.datetime(year=now.year, month=1, day=1).date()
 
     return {
         'series': {
             'Pages': map(
                 lambda x: {force_text(MONTH_NAMES[x[0].month]): x[1]},
-                qss.time_series(start=this_year, end=today, interval='months')
+                qss.time_series(start=start, end=now, interval='months')
             )
         }
     }
@@ -88,14 +87,14 @@ def new_document_versions_per_month():
         DocumentVersion.objects.all(), 'document__date_added'
     )
 
-    today = datetime.date.today()
-    this_year = datetime.date(year=today.year, month=1, day=1)
+    now = timezone.now().date()
+    start = timezone.datetime(year=now.year, month=1, day=1).date()
 
     return {
         'series': {
             'Versions': map(
                 lambda x: {force_text(MONTH_NAMES[x[0].month]): x[1]},
-                qss.time_series(start=this_year, end=today, interval='months')
+                qss.time_series(start=start, end=now, interval='months')
             )
         }
     }
@@ -127,25 +126,27 @@ def total_document_per_month():
     Document = apps.get_model(app_label='documents', model_name='Document')
 
     qss = qsstats.QuerySetStats(Document.objects.all(), 'date_added')
-    this_year = datetime.date.today().year
+    now = timezone.now()
 
     result = []
 
-    for month in range(1, datetime.date.today().month + 1):
+    for month in range(1, now.month + 1):
         next_month = month + 1
 
         if month == 12:
             next_month = 1
-            year = this_year + 1
+            year = now.year + 1
         else:
             next_month = month + 1
-            year = this_year
+            year = now.year
 
         result.append(
             {
                 force_text(
                     MONTH_NAMES[month]
-                ): qss.until(datetime.date(year, next_month, 1))
+                ): qss.until(
+                    timezone.datetime(year, next_month, 1, tzinfo=now.tzinfo)
+                )
             }
         )
 
@@ -164,25 +165,27 @@ def total_document_version_per_month():
     qss = qsstats.QuerySetStats(
         DocumentVersion.objects.all(), 'document__date_added'
     )
-    this_year = datetime.date.today().year
+    now = timezone.now()
 
     result = []
 
-    for month in range(1, datetime.date.today().month + 1):
+    for month in range(1, now.month + 1):
         next_month = month + 1
 
         if month == 12:
             next_month = 1
-            year = this_year + 1
+            year = now.year + 1
         else:
             next_month = month + 1
-            year = this_year
+            year = now.year
 
         result.append(
             {
                 force_text(
                     MONTH_NAMES[month]
-                ): qss.until(datetime.date(year, next_month, 1))
+                ): qss.until(
+                    timezone.datetime(year, next_month, 1, tzinfo=now.tzinfo)
+                )
             }
         )
 
@@ -201,25 +204,27 @@ def total_document_page_per_month():
     qss = qsstats.QuerySetStats(
         DocumentPage.objects.all(), 'document_version__document__date_added'
     )
-    this_year = datetime.date.today().year
+    now = timezone.now()
 
     result = []
 
-    for month in range(1, datetime.date.today().month + 1):
+    for month in range(1, now.month + 1):
         next_month = month + 1
 
         if month == 12:
             next_month = 1
-            year = this_year + 1
+            year = now.year + 1
         else:
             next_month = month + 1
-            year = this_year
+            year = now.year
 
         result.append(
             {
                 force_text(
                     MONTH_NAMES[month]
-                ): qss.until(datetime.date(year, next_month, 1))
+                ): qss.until(
+                    timezone.datetime(year, next_month, 1, tzinfo=now.tzinfo)
+                )
             }
         )