如何在谷歌应用程序引擎中的留言板中的每个帖子下添加日期和时间 [英] How to add date and time under each post in guestbook in google app engine
本文介绍了如何在谷歌应用程序引擎中的留言板中的每个帖子下添加日期和时间的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这里是代码:
import cgi
import datetime
import wsgiref.handlers
from google.appengine.ext从google.appengine.api导入db
从google.appengine.ext导入用户
导入webapp
类问候语(db .Model):
author = db.UserProperty()
content = db.StringProperty(multiline = True)
date = db.DateTimeProperty(auto_now_add = True)
class MainPage(webapp.RequestHandler):
def get(self):
self.response.out.write('< html>< body>')
greetings = db.GqlQuery(SELECT * FROM Greeting ORDER BY date DESC LIMIT 10)
在问候语中的问候:
如果greeting.author:
self .response.out.write('< b>%s< / b>写道:'%greeting.author.nickname())
else:
self.response.out。写('匿名人写道:')
self.response.ou t.write('< blockquote>%s< / blockquote>%
cgi.escape(greeting.content))
#写入提交表单和页面的页脚
self.response.out.write(
< form action =/ signmethod =post>
< div>< textarea name =contentrows =3cols =60>< / textarea>< / div>
< div>< input type =submitvalue =Sign Guestbook>< / div>
< / form>
< / body>
< / html>)
类留言簿(webapp.RequestHandler):
def post(self):
greeting = Greeting()
if users.get_current_user():
greeting.author = users.get_current_user()
greeting.content = self.request.get('content')
greeting.put()
self.redirect('/')
application = webapp.WSGIApplication([
('/',MainPage),
('/ sign',Guestbook)
],debug = True)
def main():
wsgiref.handlers.CGIHandler() .run(应用程序)
如果__name__ =='__main__':
main()
解决方案
使用 strftime()方法在日期时间实例 greeting.date
上加入类似这样的内容:
用于问候问候:
self.response.out.write(gree ting.date.strftime('< b>发布:%y-%m-%d%H:%M:%S< / b>< br>'))
如果您有缩进问题,请复制并粘贴此代码:
导入cgi
导入日期时间
导入wsgiref.handlers
$ b从google.appengine.ext导入db
from google.appengine.api导入用户
来自google.appengine.ext导入webapp
类问候语(db.Model):
author = db.UserProperty()
content = db.StringProperty( multiline = True)
date = db.DateTimeProperty(auto_now_add = True)
$ b $ class MainPage(webapp.RequestHandler):
def get(self):
self.response.out.write('< html>< body>')
greetings = db.GqlQuery(SELECT * FROM Greeting ORDER BY date DESC LIMIT 10)
for greeting在问候语中:
self.response.out.write(greeting.date.strftime('< b>发布:%Y-%m-%d%H:%M:%S< / b>< ))
if greeting.author:
self.response.out.write('< b>%s< / b>写道:'%greeting.author.nickname())
else:
self.response.out.write('anonymous person wrote:')
self.response.out.write( '< blockquote>%s< / blockquote>'%
cgi.escape(greeting.content))
#写入页面的提交表单和页脚
self.response.out .write(
< form action =/ signmethod =post>
< div>< textarea name =contentrows =3cols = 60元>< / textarea>< / div>
< div>< input type =submitvalue =Sign Guestbook>< / div>
< / (&);
< / body>
< / html>)
class Guestbook(webapp.RequestHandler):
def post(self):
greeting = Greeting()
如果users.get_current_user():
greeting.author = users.get_current_user()
greeting.content = self.request.get('content')
greeting.put()
self.redirect('/')
application = webapp.WSGIApplication([
('/',MainPage),
('/ sign',Guestbook)
],debug = True)
$ b def main() :
wsgiref.handlers.CGIHandler()。run(应用程序)
$ b $如果__name__ =='__main__':
main()
here is the code:
import cgi import datetime import wsgiref.handlers from google.appengine.ext import db from google.appengine.api import users from google.appengine.ext import webapp class Greeting(db.Model): author = db.UserProperty() content = db.StringProperty(multiline=True) date = db.DateTimeProperty(auto_now_add=True) class MainPage(webapp.RequestHandler): def get(self): self.response.out.write('<html><body>') greetings = db.GqlQuery("SELECT * FROM Greeting ORDER BY date DESC LIMIT 10") for greeting in greetings: if greeting.author: self.response.out.write('<b>%s</b> wrote:' % greeting.author.nickname()) else: self.response.out.write('An anonymous person wrote:') self.response.out.write('<blockquote>%s</blockquote>' % cgi.escape(greeting.content)) # Write the submission form and the footer of the page self.response.out.write(""" <form action="/sign" method="post"> <div><textarea name="content" rows="3" cols="60"></textarea></div> <div><input type="submit" value="Sign Guestbook"></div> </form> </body> </html>""") class Guestbook(webapp.RequestHandler): def post(self): greeting = Greeting() if users.get_current_user(): greeting.author = users.get_current_user() greeting.content = self.request.get('content') greeting.put() self.redirect('/') application = webapp.WSGIApplication([ ('/', MainPage), ('/sign', Guestbook) ], debug=True) def main(): wsgiref.handlers.CGIHandler().run(application) if __name__ == '__main__': main()
解决方案Use the strftime() method on the datetime instance
greeting.date
with something like this:for greeting in greetings: self.response.out.write(greeting.date.strftime('<b>posted:%Y-%m-%d %H:%M:%S</b><br>'))
If you are having problem of indentation, copy and paste this code:
import cgi import datetime import wsgiref.handlers from google.appengine.ext import db from google.appengine.api import users from google.appengine.ext import webapp class Greeting(db.Model): author = db.UserProperty() content = db.StringProperty(multiline=True) date = db.DateTimeProperty(auto_now_add=True) class MainPage(webapp.RequestHandler): def get(self): self.response.out.write('<html><body>') greetings = db.GqlQuery("SELECT * FROM Greeting ORDER BY date DESC LIMIT 10") for greeting in greetings: self.response.out.write(greeting.date.strftime('<b>posted: %Y-%m-%d %H:%M:%S</b><br>')) if greeting.author: self.response.out.write('<b>%s</b> wrote:' % greeting.author.nickname()) else: self.response.out.write('An anonymous person wrote:') self.response.out.write('<blockquote>%s</blockquote>' % cgi.escape(greeting.content)) # Write the submission form and the footer of the page self.response.out.write(""" <form action="/sign" method="post"> <div><textarea name="content" rows="3" cols="60"></textarea></div> <div><input type="submit" value="Sign Guestbook"></div> </form> </body> </html>""") class Guestbook(webapp.RequestHandler): def post(self): greeting = Greeting() if users.get_current_user(): greeting.author = users.get_current_user() greeting.content = self.request.get('content') greeting.put() self.redirect('/') application = webapp.WSGIApplication([ ('/', MainPage), ('/sign', Guestbook) ], debug=True) def main(): wsgiref.handlers.CGIHandler().run(application) if __name__ == '__main__': main()
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