gql
in gql, how do i sort by a field in another class linked by referenceproperty?
for example, 2 classes in a 1-to-many relationship: class owner(db.model): name = db.StringProperty() class cat(db.model):[详细]
2023-01-13 07:56 分类:问答how do I make a python gql query with a hardcoded string?
I\'d like to create a gql query through my browser dashboard to easily look up specific entries, i.e. something like:[详细]
2023-01-09 18:56 分类:问答Between query equivalent on App Engine datastore?
I have a model containing ranges of IP addresses, similar to this: class Country(db.Model): begin_ipnum = db.IntegerProperty()[详细]
2023-01-09 11:02 分类:问答Need to order by properties in the reference property, any good solution?
Say I have 2 kind: class Account(db.Model): name = db.StringProperty() create_time = db.DataTimeProperty()[详细]
2023-01-08 15:58 分类:问答App Engine's filter vs. gql methods
I have a user in my system who has created an entity which I\'d like to retrieve. I\'m attempting to do this using a filter because it\'s supposed to be faster than a call to the gql method. However,[详细]
2023-01-08 02:56 分类:问答GQL: Find all entities that contain a substring
I have some entities that have a StringProperty and I would like to query for all the entities that match a substring. Is there a way to do that using just GQL?[详细]
2023-01-06 09:48 分类:问答What is affected by ReferenceProperty?
In reference to these two questions (see links below) and the Google AppEngine doc, I got a little bit confused:[详细]
2023-01-04 13:35 分类:问答GQL Reference for Appengine
Anyone have a good reference guide for GQL (query language for google appengine datastore)? I开发者_JAVA百科 find the reference guide on the google appengine site very limited with examplesThe doc i[详细]
2023-01-04 04:51 分类:问答How to store and search GeoData in AppEngine?
In my application, I want to store geographical data (longitude and latitude). Then I want to ask \"which place is in this region\". SQL-like query can\'t be used, since \"Inequalit开发者_C百科y Filte[详细]
2023-01-01 23:35 分类:问答Selecting based on __key__ (a unique identifier) in google appengine [Java]
I have public class QuantityType { @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)[详细]
2022-12-31 23:39 分类:问答