google-cloud-datastore
Relational data model to Google datastore mapping
First off, I come from a RDBMS/SQL/C++/Java/Python background and I\'m a newbie to Gaelyk, the Google API and the Google datastore.[详细]
2023-03-26 15:02 分类：问答Why is there no unique constraint in Google Appengine?
I have seen many articles and questions about how to implement a unique constraint in appengine, but I actually didn\'t found any explanation about why this feature is not presen开发者_开发知识库t.[详细]
2023-03-26 14:09 分类：问答Does ID always increase when adding new objects to GAE Datastore?
I\'m building an client/server-app where I want to sync data. I\'m thinking about including the largest key from the local client database in the query so the 开发者_如何学Pythonserver can fetch all e[详细]
2023-03-26 13:36 分类：问答Is it possible to decode property class from metadata _property_
When i make a meta query to ret开发者_StackOverflow中文版rieve entity properties (columns), i retrieve only this:[详细]
2023-03-26 10:47 分类：问答AppEngine - When to use a parent relationship?
I\'m trying to understand when to use an entity \"parent\" on GAE.Is this only useful for querying (ie get all 开发者_开发知识库the Foo objects where the parent == someObj) or does the child have acce[详细]
2023-03-26 07:10 分类：问答How to query for models with specific parent (not any ancestor) in GAE
The docs says that ancestor will apply a filter of given ancestor being somewhere in the ancestry tree.[详细]
2023-03-26 03:19 分类：问答How can I query for root entities in the App Engine DataStore (Java)
I\'m trying to write a query which will identify and return all root entities (i.e. entities which have no ancestor). I initially tried calling Query.setAncestor(null) but later found out from the dat[详细]
2023-03-26 02:32 分类：问答Verify ownership web master central problem with authentication google account redirect
I\'m trying to verify my site with a domain in appspot.com but i use the authentication whit google account when the web master central try[详细]
2023-03-25 20:12 分类：问答Google AppEngine datastore config: reusable?
The documentation about datastore config objects confuses me: \"A configuration object can be used any number of times. You must开发者_如何学C create a separate configuration object for each datasto[详细]
2023-03-25 02:39 分类：问答Required custom Property
I create a custom db.Property subclass: class PropertyFoo(db.StringProperty): def validate(self, value):[详细]
2023-03-25 00:35 分类：问答
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