技術メモ: NormalizeAndTypeCheck エラー

2008年8月31日日曜日

NormalizeAndTypeCheck エラー

reference などの key は .key() が必要

○　login.session.key()
× login.session

忘れた場合のエラー

keys, multiple = datastore.NormalizeAndTypeCheckKeys(keys)
File "C:\Program Files\Google\google_appengine\google\appengine\api\datastore.py", line 117, in NormalizeAndTypeCheckK
ys
keys, multiple = NormalizeAndTypeCheck(keys, (basestring, Entity, Key))
File "C:\Program Files\Google\google_appengine\google\appengine\api\datastore.py", line 96, in NormalizeAndTypeCheck
(types, arg, typename(arg)))
adArgumentError: Expected an instance or sequence of (, , ); received (a Session).

SQL and GQL　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　TOP

is null	from google.appengine.ext import db r = db.GqlQuery ("SELECT * FROM model WHERE property=:1",None) # None is the python Null. / see
count(*)	r.count()
like	r = db.GqlQuery("SELECT * FROM model WHERE property >= :1 and property < :2 ", search_key, urllib.unquote(search_key).decode("utf8") + u"\uFFFD" )
update	see
!=	!= # see
date	yymm = '2008-05-10 22:22:22' # see ydate = datetime.datetime.strptime(yymm, '%Y-%m-%d %H:%M:%S')
日付検索	from datetime import * import datetime d1 = datetime.datetime.strptime('2008-06-01', '%Y-%m-%d') d2 = d1 + timedelta(days=10) r = db.GqlQuery("select * from model where date >=:1 and date <:2 ",d1,d2) 　for rr in r: print datetime.datetime.strftime(rr,'%Y-%m-%d %H:%M:%S') Dates and Times
	datastore viewer http://localhost:8080/_ah/admin/datastore?kind=StockSum&order=-nikkei_max&order_type=float&num=100&start=0
reference	see (back-references), Many-to-many Join
key, key_name ,id	Key names and IDs cannot be used like property values × select * from Greeting where key = "xxxx" × select * from Greeting where id = xxx ○ r = Greeting.get(db.Key.from_path('Greeting', id)) # or key_name ○ r = db.get("agpoZWxsb3dvcmxkcgsLEgRCbG9nGNQBDA") key = r.key() id = r.key().id()

2008年8月31日日曜日

NormalizeAndTypeCheck エラー

MacOS Sequoia で Apache+PHP の再設定