orm

Not able to use RealmAdapter - java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/widget/TintManager;

删除回忆录丶 提交于 2020-01-17 06:51:34
问题 I am trying to use Realm Adapter in one of my projects. However I am not able to use it. When ever I add compile 'io.realm:android-adapters:1.0.1' into gradle file. Project gets compiled successfully, but the app crashes on tabLayout.setupWithViewPager(viewPager); -- the line where I am adding

JPA creating a trimmed down entity version of an existing Entity

白昼怎懂夜的黑 提交于 2020-01-17 03:41:26
问题 I have a Angular Client and a REST backend through Spring REST/MVC. The database is MySQL and I'm using JPA with Hibernate for ORM. Some of my front end views require me to de-normalize some domain-data on the Java side. I have a typical User Domain object with id,fname,lname etc.. This User

Cannot retrieve the latest update value from database after running the ORM Lite UpdateBuilder.update() in android

倾然丶 夕夏残阳落幕 提交于 2020-01-16 20:08:26
问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing

Cannot retrieve the latest update value from database after running the ORM Lite UpdateBuilder.update() in android

烂漫一生 提交于 2020-01-16 20:07:04
问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing

Cannot retrieve the latest update value from database after running the ORM Lite UpdateBuilder.update() in android

给你一囗甜甜゛ 提交于 2020-01-16 20:06:19
问题 I have trouble when updating the data in android by using ORM Lite because my updated data is not affected in database immediately. After the update process, I query the data from the database but I got the old data that was the same as before I update. So, I solved this problem by refreshing

What is the difference between persist() and merge() in JPA and Hibernate?

天涯浪子 提交于 2020-01-16 12:09:16
问题 What is the difference between persist() and merge() in Hibernate? persist() can create a UPDATE & INSERT query, eg: SessionFactory sef = cfg.buildSessionFactory(); Session session = sef.openSession(); A a=new A(); session.persist(a); a.setName("Mario"); session.flush(); in this case query will

how to deal with doctrine's lazy loading when having null-objects?

前提是你 提交于 2020-01-16 05:12:16
问题 i have a question about the correct way to handle doctrine's lazy loading mechanism. I have an entity that references another one via @ManyToOne: class Entity { ... /** * @ManyToOne(targetEntity="AnotherEntity") * @JoinColumn(name="anotherEntityId", referencedColumnName="id") */ protected

Define Laravel Eloquent relations between 3 models in a messaging system

谁都会走 提交于 2020-01-16 00:47:33
问题 I'm trying to create multi-participant messaging system. Here's the database design I'v found here: Messaging system database schema Conversation ------------ id Messages -------- id conversation_id from_id subject message from_timestamp Participants ------------ conversation_id user_id last_read

C# Database Mapper

我怕爱的太早我们不能终老 提交于 2020-01-15 18:44:52
问题 I was looking to map my database query results to strongly type objects in my c# code. So i wrote a quick and dirty helper method on the SqlConnection class which runs the query on the database and uses reflection to map the record columns to the object properties. The code is below: public

How can I select count(field) and still get an object with createQueryBuilder

元气小坏坏 提交于 2020-01-15 12:05:29
问题 I want to access a query result in twig as a whole object. In the query however, I want to select just several fields from the tables + count . In my example I have a company, which is owned by an owner and has several employees. I want to create a query, which gives me a list of companies