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UPDATE:如何將圖像寫入數據存儲?
由systempuntoout
看到評論。表單遺漏了提交按鈕。現在一切正常。
我有這樣的代碼,我認爲會寫入一個圖像數據存儲;但是,這不是happenning:
class AvatarSave(webapp.RequestHandler):
def post(self):
q = User.all()
q.filter("userEmail =", "[email protected]")
qTable = q.fetch(10)
if qTable:
for row in qTable:
avatar = images.resize(self.request.get("img"), 32, 32)
row.avatar = db.Blob(avatar)
db.put(qTable)
else:
self.response.out.write("user not found")
self.redirect('/')
日誌顯示圖像鍵:
INFO 2010-12-04 13:56:26,601 dev_appserver.py:3317] "GET /img?
img_id=ag1oZWxsby0xLXdvcmxkcgsLEgRVc2VyGIABDA HTTP/1.1" 200 -
但顯示除了斷開的鏈接什麼。我在這裏錯過了什麼?我很感謝你的幫助。我在下面包含了整個腳本。謝謝!
class MainPage(webapp.RequestHandler):
def get(self):
siteUser = users.get_current_user()
greeting = None
if siteUser:
greeting = ("Welcome, %s! (<a href=\"%s\">sign out</a>)" %
(siteUser.nickname(), users.create_logout_url("/")))
else:
greeting = ("<a href=\"%s\">Sign in or register</a>" %
users.create_login_url("/"))
self.response.out.write(greeting)
self.response.out.write("""
<form action="/avatar-save" enctype="multipart/form-data" method="post">
<div><label>Avatar:</label></div>
<div><input type="file" name="img"/></div>
</form>
</body>
</html>""")
query = User.all()
query.filter("userEmail =", "[email protected]")
query.order("-userScore")
results = query.fetch(10)
self.response.out.write("""<html><head><style>
body {font-size: small;
font-family: Verdana, Helvetica, sans-serif;
}</style>
</head><body><ol>""")
for result in results:
self.response.out.write("<li>")
self.response.out.write("<b>%s</b> %s " % (result.userName, result.userLatestComment))
self.response.out.write("<div><img src='img?img_id=%s'></img>" % result.key())
self.response.out.write("</li>")
self.response.out.write("</ol></body></html>")
class Image (webapp.RequestHandler):
def get(self):
greeting = db.get(self.request.get("img_id"))
if greeting.avatar:
self.response.headers['Content-Type'] = "image/png"
self.response.out.write(greeting.avatar)
else:
self.response.out.write("No image")
class AvatarSave(webapp.RequestHandler):
def post(self):
q = User.all()
q.filter("userEmail =", "[email protected]")
qTable = q.fetch(10)
if qTable:
for row in qTable:
avatar = images.resize(self.request.get("img"), 32, 32)
row.avatar = db.Blob(avatar)
db.put(qTable)
else:
self.response.out.write("user not found")
self.redirect('/')
application = webapp.WSGIApplication(
[('/', MainPage),
('/img', Image),
('/avatar-save', AvatarSave),
],
debug=True)
def main():
run_wsgi_app(application)
if __name__ == "__main__":
main()
你好systempuntoout:感謝您花時間幫忙!我真的很感激。現在它也適用於我的機器! – Zeynel 2010-12-04 16:05:19