python 使用Google日历事件在网页上显示，使用gdata库

Posted 2021-05-10

try:
    from xml.etree import ElementTree  # for Python 2.5 users
except ImportError:
    from elementtree import ElementTree
import gdata.calendar.service
import gdata.service
import atom.service
import gdata.calendar
import atom
import getopt
import sys
import string
import time
from django.http import HttpResponse, HttpResponseRedirect
import datetime
import calendar
from django.conf import settings

calendar_service = ''


class GoogleCalendar(object):

    def auth(self):
        calendar_service = gdata.calendar.service.CalendarService()
        calendar_service.email = settings.CALENDAR_LOGIN_EMAIL
        calendar_service.password = settings.CALENDAR_LOGIN_PASSWORD
        calendar_service.source = 'Google-Calendar_Python_Sample-1.0'
        calendar_service.ProgrammaticLogin()
        return calendar_service

    def get_events_from_gcalendars(self, request, max_results,
                                   start_date=None, end_date=None):
        try:
            # start_date='2011-05-01',   end_date='2011-05-31'
            # max_results = 0, means all records
            calendar_service = self.auth()

            #feed = calendar_service.GetAllCalendarsFeed()
            s = ''
            query = gdata.calendar.service.CalendarEventQuery(
                'default',
                'private',
                'full'
            )

            if start_date:
                query.start_min = start_date

            if end_date:
                query.start_max = end_date

            query.orderby = 'starttime'
            query.sortorder = 'ascending'

            if max_results > 0:
                query.max_results = int(max_results)

            feed = calendar_service.CalendarQuery(query)
            events = []

            s += 'Events on Primary Calendar: %s <br>' % (feed.title.text,)
            for i, an_event in enumerate(feed.entry):
                title = an_event.title.text
                content = an_event.content.text

                for a_where in an_event.where:
                    where = a_where.value_string

                for a_when in an_event.when:
                    start_date = self.format_time(a_when.start_time, "date")
                    start_time = self.format_time(a_when.start_time, "time")
                    end_date = self.format_time(a_when.end_time, "date")
                    end_time = self.format_time(a_when.end_time, "time")

                event_dict = {
                    'title': title,
                    'content': content,
                    'where': where,
                    'start_date': start_date,
                    'start_time': start_time,
                    'end_date': end_date,
                    'end_time': end_time,
                }
                events.append(event_dict)

            return events
        except:
            return False

    def format_time(self, str_time, date_time="date"):
        """
        this is to convert the time format, to display nicely
        """
        if date_time == 'date':
            try:
                #2011-05-13T18:30:00.000+01:00
                f_time = time.strptime(str_time[:23], "%Y-%m-%dT%H:%M:%S.%f")
            except:
                f_time = time.strptime(str_time[:23], "%Y-%m-%d")

            ret_str = time.strftime("%a, %d %b", f_time)
            return ret_str

        elif date_time == 'time':
            try:
                #2011-05-13T18:30:00.000+01:00
                f_time = time.strptime(str_time[:23], "%Y-%m-%dT%H:%M:%S.%f")
            except:
                f_time = time.strptime(str_time[:23], "%Y-%m-%d")

            ret_str = time.strftime("%H:%M", f_time)
            return ret_str


#initiate the instance of class
events_instance = GoogleCalendar()