[FIX] google_calendar: wrong timezone

When creating an event in at 4 pm,
while being in UTC +2 (Europe/Brussels),
The start date sent to Google was set as
'2015-07-03T16:00:00+02:00',
but the timezone was described as 'UTC', giving
therefore giving contradictory information.

At the end, in the google calendar,
the event was set in the UTC timezone,
while it should have been set in GMT +2 (Europe/Brussels).

opw-640825

addons/google_calendar/google_calendar.py

@@ -202,6 +202,8 @@ class google_calendar(osv.AbstractModel):
     _name = 'google.%s' % STR_SERVICE
 
     def generate_data(self, cr, uid, event, isCreating=False, context=None):
+        if not context:
+            context = {}
         if event.allday:
             start_date = fields.datetime.context_timestamp(cr, uid, datetime.strptime(event.start, tools.DEFAULT_SERVER_DATETIME_FORMAT), context=context).isoformat('T').split('T')[0]
             final_date = fields.datetime.context_timestamp(cr, uid, datetime.strptime(event.start, tools.DEFAULT_SERVER_DATETIME_FORMAT) + timedelta(hours=event.duration) + timedelta(days=isCreating and 1 or 0), context=context).isoformat('T').split('T')[0]
@@ -226,19 +228,18 @@ class google_calendar(osv.AbstractModel):
                 "method": "email" if alarm.type == "email" else "popup",
                 "minutes": alarm.duration_minutes
             })
-
         data = {
             "summary": event.name or '',
             "description": event.description or '',
             "start": {
                 type: start_date,
                 vstype: None,
-                'timeZone': 'UTC'
+                'timeZone': context.get('tz', 'UTC'),
             },
             "end": {
                 type: final_date,
                 vstype: None,
-                'timeZone': 'UTC'
+                'timeZone': context.get('tz', 'UTC'),
             },
             "attendees": attendee_list,
             "reminders": {
@@ -365,7 +366,7 @@ class google_calendar(osv.AbstractModel):
 
         url = "/calendar/v3/calendars/%s/events/%s?fields=%s&access_token=%s" % ('primary', google_event['id'], 'id,updated', self.get_token(cr, uid, context))
         headers = {'Content-type': 'application/json', 'Accept': 'text/plain'}
-        data = self.generate_data(cr, uid, oe_event, context)
+        data = self.generate_data(cr, uid, oe_event, context=context)
         data['sequence'] = google_event.get('sequence', 0)
         data_json = simplejson.dumps(data)