Google App Engine project , datastore use auto increment id, ref this link: http://stackoverflow.com/questions/2529620/google-app-engine-auto-increment
USE:
class Loger(db.Model):
name = db.StringProperty()
url = db.StringProperty()
log = db.StringProperty()
date_add = db.DateTimeProperty(auto_now_add=True)
delete data:
log = Loger.get_by_id(id)
log.delete()
Loger: Entry
results = q.fetch(row_num)
for r in results:
ls.append((r.name, r.url, r.log, (r.date_add + datetime.timedelta(hours=+8)).strftime(‘%Y-%m-%d %H:%M:%S’), r.key().id()))
PUT data:
loger = Loger()
loger.name = name
loger.url = url
loger.log = log
loger.put()
更新：
自动的ID号，并不是按插入顺序增长的，看起来是无序的？