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一.Creating 1. 你可以通过调用在store中的createRecord方法来创建records. store.createRecord('post', { title: 'Rails is Omakase', body: 'Lorem ipsum' }); 2. 这个store对象可以通过this.store在controllers和routes中使用. 3. 尽管createRecord相当简单,唯一要注意的是你不能分配一个promise作为一个关系.例如,如果你希望设置一个pos…
PROBLEM DESCRIPTION When creating or deleting topics in Kafka, they cannot be authorized through the Ranger policies. The following errors are displayed while creating the topics: [ADM_xxxx@xxxx-oc-had102 ~]$ /usr/hdp/current/kafka-broker/bin/kafka-t…
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Models Models control the data source, they are used for collecting and issuing data, this could be a remote service, as XML, JSON or using a database to get and fetch records. A Model is a class. The model needs to extend the parent Model, either th…
Database ORM Introduction Basic Usage Mass Assignment Insert, Update, Delete Soft Deleting Timestamps Query Scopes Relationships Querying Relations Eager Loading Inserting Related Models Touching Parent Timestamps Working With Pivot Tables Collection…
本文内容为转载,重新排版以供学习研究.如有侵权,请联系作者删除. 转载请注明本文出处:Professional C# 6 and .NET Core 1.0 - 38 Entity Framework Core ----------------------------------------------------------------------- What's In This Chapter? Introducing Entity Framework Core 1.0 Using Depe…
http://mysql.rjweb.org/bestof.html I have tagged many of the better forum threads. 'Better' is based on how good I thing the answer was. (<bias> I wrote many, but not all, of the better answers. </bias>) -- Rick James, MySQL Geek The Best of t…
本文内容为转载,重新排版以供学习研究.如有侵权,请联系作者删除. 转载请注明本文出处:Professional C# 6 and .NET Core 1.0 - Chapter 38 Entity Framework Core ----------------------------------------------------------------------- What’s In This Chapter? Introducing Entity Framework Core 1.0 Us…
Overview For maximum control over local data, developers can use SQLite directly by leveraging SQLiteOpenHelper for executing SQL requests and managing a local database. In this guide, we'll use the example of building a database to persist user crea…
          HEC-ResSim Reservoir System Simulation             User's Manual       Version 3.1 May 2013     Approved for Public Release. Distribution Unlimited.     CPD-82 REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 The public reporting b…