GAE python:获取和发布请求工作,而无需通过表单提交帖子请求

时间:2013-03-06 07:01:36

标签: google-app-engine python-2.7 request httphandler task-queue

这是此question

的延续

以下是原始代码的缩写版本。我尝试包含最相关的部分,并省略了cron作业使用的脚本部分,该部分使用值更新数据存储区。

然后,在 sendFollowUp()处理程序中,第二个cron作业向数据存储区查询这些值,然后使用推送任务队列将这些值作为参数发送,这些参数最终用于REST API调用另一个向数据存储区中的人员(实体)发送电子邮件的服务。

我无法弄清楚如何在同一个处理程序中使用发布请求跟进获取请求,而无需通过表单提交发布请求。这需要在sendFollowUp处理程序中进行。我发现的大多数例子都包括提交表格。但是,我不想这样做。我只是想让它自动与cron作业和任务队列一起工作。

import webapp2
import datetime
from google.appengine.ext import db
from google.appengine.api import users
from google.appengine.api import taskqueue
import jinja2
import os

jinja_environment = jinja2.Environment(loader=jinja2.FileSystemLoader(os.path.dirname(__file__)))

class emailJobs(db.Model):
    """ Models an a list of email jobs for each user """
    triggerid = db.StringProperty()  #Trig id
    recipientid_po = db.StringProperty() # id
    recipientlang = db.StringProperty()  #Language
    fu_email_sent = db.DateTimeProperty() 
    fuperiod = db.IntegerProperty() # (0 - 13)
    fu1 = db.DateTimeProperty() 
    fu2 = db.DateTimeProperty()

    @classmethod
    def update_fusent(cls, key_name, senddate):
        """ Class method that updates fu messages sent in the GAE Datastore """
        emailsjobs = cls.get_by_key_name(key_name)
        if emailsjobs is None:
            emailsjobs = cls(key_name=key_name)
        emailsjobs.fu_email_sent = senddate
        emailsjobs.put()

def timeStampFM(now):
    d = now.date()
    year = d.year
    month = d.month
    day = d.day
    t = now.time()
    hour = t.hour
    minute = t.minute + 5
    second = t.second
    today_datetime = datetime.datetime(year, month, day, hour, minute, second)
    return today_datetime


class MainPage(webapp2.RequestHandler):
    """ Main admin login page """
    def get(self):
        if users.get_current_user():
            url = users.create_logout_url(self.request.uri)
            url_linktext = 'Logout'
            urla = '/'
            url_admin = ""
            if users.is_current_user_admin():
                url = users.create_logout_url(self.request.uri)
                urla = "_ah/admin/"
                url_admin = 'Go to admin pages'
                url_linktext = 'Logout'

        else:
            url = users.create_login_url(self.request.uri)
            url_linktext = 'Login'

        template_values = {
            'url': url,
            'url_linktext': url_linktext,
            'url_admin': url_admin,
            'urla': urla,
            }

        template = jinja_environment.get_template('index.html')
        self.response.out.write(template.render(template_values))


class sendFollowUp(webapp2.RequestHandler):
    """ Queries Datastore for fu dates that match today's date, then adds them to a task queue """
    def get(self):

        now = datetime.datetime.now()
        now_dt = now.date() #today's date to compare with fu dates

        q = emailJobs.all()
        q.filter('fuperiod >', 0)
        q.filter('fuperiod <', 99)

        for part in q:
            guid = str(part.recipientid_po)
            lang = str(part.recipientlang)
            trigid = str(part.triggerid)

            if part.fuperiod == 1:
                fu1rawdt = part.fu1
                fu1dt = fu1rawdt.date()
                if fu1dt == now_dt:
                    follow_up = '1'

            if part.fuperiod == 2: # the values go up to 12 in the original code
                fu2rawdt = part.fu2
                fu2dt = fu2rawdt.date()
                if fu2dt == now_dt:
                    follow_up = '2'

        if follow_up != None:
            taskqueue.add(queue_name='emailworker', url='/emailworker', params={'guid': guid,
                                                                            'fu': follow_up,
                                                                            'lang': lang,
                                                                            'trigid': trigid,
                                                                            })
        self.redirect('/emailworker')


class pushQueue(webapp2.RequestHandler):
    """ Sends fu emails, updates the Datastore with datetime sent """

    def store_emails(self, trigid, senddate):
        db.run_in_transaction(emailJobs.update_fusent, trigid, senddate)

    def get(self):
        fu_messages = {'1': 'MS_x01', 
                       '2': 'MS_x02',
                       # the values go up to 12 in the original code
                       }
        langs = {'EN': 'English subject',
                 'ES': 'Spanish subject',
                 }

        fu = str(self.request.get('fu'))
        messageid = fu_messages[fu]

        lang = str(self.request.get('lang'))
        subject = langs[lang]

        now = datetime.datetime.now()
        senddate = timeStampFM(now)

        guid = str(self.request.get('guid'))
        trigid = str(self.request.get('trigid'))

        data = {}
        data['Subject'] = subject
        data['MessageID'] = messageid
        data['SendDate'] = senddate
        data['RecipientID'] = guid
        # Here I do something with data = {}

        self.store_emails(trigid, senddate)

    app = webapp2.WSGIApplication([('/', MainPage),
                       ('/cron/sendfu', sendFollowUp),
                       ('/emailworker', pushQueue)],
                       debug=True)

1 个答案:

答案 0 :(得分:0)

我不确定我是否真的理解你的问题,但是你不能只用requests模块创建一个POST请求吗?

Post Requests

>>> payload = {'key1': 'value1', 'key2': 'value2'}
>>> r = requests.post("http://httpbin.org/post", data=payload)

另外,为了便于任务使用,您是否看过延迟库?

  

延迟库允许您通过公开一个简单的函数deferred.defer()来绕过设置专用任务处理程序以及序列化和反序列化参数的所有工作。要稍后调用函数,只需将函数及其参数传递给deferred.defer

即可

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