我在访问数据存储实体时遇到问题。我是 GAE 和 Python 的新手，所以请善待。我一直在从在线教程和其他示例代码中获取代码，到目前为止一切正常。
最终，我希望能够剥离电子邮件附件，对文件进行一些简单的更改，并与其他 .kml 文件（甚至更好的 .kmz，但一次一件事 :) 合并。
步骤1。是向应用程序的appspotmail地址发送电子邮件=完成:)
第2步。...写入 db.model = 我可以在仪表板/数据存储查看器中看到实体在那里，所以没问题 = 完成 :)
第三步。- 呈现模板以显示最近收到的 20 封电子邮件。此列表将动态更新..... :( Hmmmmm
相反，我看到none为 index.html 中的所有变量呈现。你能指出我正确的方向吗？谢谢！
达沃
这是 yaml.app
application: racetracer
version: 1
runtime: python27
api_version: 1
threadsafe: false
libraries:
- name: jinja2
version: latest
handlers:
- url: /_ah/mail/.+
script: handle_incoming_email.py
login: admin
- url: /favicon.ico
static_files: images/favicon.ico
upload: images/favicon.ico
- url: /static/css
static_dir: static/css
- url: /static/html
static_dir: static/index.html
- url: .*
script: main.app
inbound_services:
- mail
这是handle_incoming_email.py
import logging, email
import cgi
import datetime
import os.path
import os
from os import path
from google.appengine.ext import webapp
from google.appengine.ext import db
from google.appengine.ext.webapp.mail_handlers import InboundMailHandler
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext.webapp.template import render
import jinja2
import wsgiref.handlers
from main import *
from baseController import *
from authController import *
class Vault(db.Model):
#fromAddress= db.UserProperty()
fromAddress= db.StringProperty()
subject = db.StringProperty(multiline=True)
#date = db.DateTimeProperty(auto_now_add=True)
date = db.StringProperty(multiline=True)
name = db.StringProperty(multiline=True)
class ProcessEmail(InboundMailHandler):
def receive(self, mailMessage):
logging.info("Email from: " + mailMessage.sender + " received ok")
logging.info("Email subject: " + mailMessage.subject )
logging.info("Email date: " + mailMessage.date )
fromAddress = mailMessage.sender
subject = mailMessage.subject
date = mailMessage.date
if not hasattr(mailMessage, 'attachments'):
logging.info("Oi, the email has no attachments")
# raise ProcessingFailedError('Email had no attached documents')
else:
logging.info("Email has %i attachment(s) " % len (mailMessage.attachments))
for attach in mailMessage.attachments:
name = attach[0] #this is the file name
contents = str(attach[1]) #and this is the attached files contents
logging.info("Attachment name: " + name )
logging.info("Attachment contents: " + contents)
vault = Vault()
vault.fromAddress = fromAddress
vault.subject = subject
vault.date = date
vault.name = name
vault.contents = contents #.decode() EncodedPayload.decode()
vault.put()
#f = open("aardvark.txt", "r")
#blah = f.read(30);
#logging.info("the examined string is : " + blah)
#f.close() # Close opened file
app = webapp.WSGIApplication([
ProcessEmail.mapping()
], debug=True)
def main():
run_wsgi_app(app)
if __name__ == "__main__":
main()
这是basecontroller.py
from authController import *
from handle_incoming_email import *
import logging
import os
import webapp2
import jinja2
import wsgiref.handlers
from google.appengine.ext.webapp import template
from google.appengine.ext import db
from google.appengine.api import users
TEMPLATE_DIR = os.path.join(os.path.dirname(__file__))
jinja_environment = \
jinja2.Environment(loader=jinja2.FileSystemLoader(TEMPLATE_DIR))
class Vault(db.Model):
#fromAddress= db.UserProperty()
fromAddress= db.StringProperty()
subject = db.StringProperty(multiline=True)
#date = db.DateTimeProperty(auto_now_add=True)
date = db.StringProperty(multiline=True)
name = db.StringProperty(multiline=True)
class MainPage(webapp2.RequestHandler):
def get(self):
logging.info("this is MainPage in baseController")
list = db.GqlQuery("SELECT * FROM Vault ORDER BY date DESC").fetch(10)
logging.info("this is in list: " + str(list))
vault = Vault()
fromAddress = vault.fromAddress
subject = vault.subject
date = vault.date
name = vault.name
values = {
'fromAddress': fromAddress,
'subject': subject,
'date': date,
'name': name,
}
templ = jinja_environment.get_template('index.html')
self.response.out.write(templ.render(values))
def main():
wsgiref.handlers.CGIHandler().run(app)
if __name__ == "__main__":
main()
我在教程中读到，渲染模板比仅使用 .py 中的 html 更好，但也许我已经将它分解为太多文件？他们的逻辑是，不同的人做前端和后端，所以现在就习惯了。无论如何，上面的内容打算呈现为 index.html ，即：
索引.html
{% extends "base.html" %}
{% block title %} racetracer {% endblock %}
{% block content %}
<h1>Racetracer </h1>
<h3>Files recently received :</h3>
<br>
<table>
<tr>
<th>Email address: </th>
<th>----------- </th>
<th>Subject: </th>
<th>Date Received: </th>
<th>Attachment: </th>
</tr>
<tr>
<td> {{ fromAddress }} </td>
<td> --------------- </td>
<td> {{ subject }} </td>
<td> {{ date }} </td>
<td> {{ name }} </td>
<blockquote>{{ content|escape }}</blockquote>
</p>
</tr>
</tr>
</table>
<br>
<hr>
<form action="/sign" method="post">
<textarea name="content" rows="1" cols="20"></textarea>
<input type="submit" value="Submit (in index:)">
</form>
{% endblock %}
和 base.html....
<html><head>
<link type="text/css" rel="stylesheet" href="/static/css/main.css" /></head>
<body> From the file base out in the racetracer folder<br>
right now you are logged in as :
{% if user %}
{{ user.nickname }}!
[<a href="{{ logout }}"><b>sign out</b></a>]
{% else %}
anonymous, who are you?
[<a href="{{ login }}"><b>sign in</b></a>]
{% endif %}
{% block content %}
{% endblock %}
</body></html>
这是 main.py
import os
import webapp2
from handle_incoming_email import *
from baseController import *
from authController import *
from google.appengine.ext.webapp import template
app = webapp2.WSGIApplication([
('/', MainPage),
#('/ProcessEmail', ProcessEmail),
], debug=True)
def main():
wsgiref.handlers.CGIHandler().run(app)
if __name__ == "__main__":
main()
谢谢你的帮助！将不胜感激。