技術メモ

ローカル: 2009年7月21日(火) 午前11:52
件名: Re: can not force delete a index with error!
I wasn't able to delete the "Error" status index for a day, the next
day when I tried vacuum_indexes it got deleted without any problem.
The fist day I tried many times, but the index status was "Error" it
didn't change to "Deleting...". It was kind of stuck at the error
status.

2009年5月29日金曜日

Blogger API / max_resuts

X max-results

○ max_results

ex. この値をセットしないと２５程度しか reults が得られない

start_time ='2009-05-01'

end_time ='2009-05-31'

query = service.Query()

query.feed = '/feeds/' + blogID + '/posts/default'

query.max_results = "100"

query.published_min = start_time

query.published_max = end_time

feed = gd_service.Get(query.ToUri())

http://code.google.com/intl/ja/apis/blogger/docs/1.0/developers_guide_php.html#RetrievingWithQuery

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()