1回答 TypeORM -在侦听器方法中使用事务(BeforeUpdate) 、 我有一个使用TypeORM的NodeJS后端服务器,每次更新实体时都需要执行插入操作。@BeforeUpdate() let entToSave: BaseModel; await getManager().save(entToSave);} 然后,在我的DAL中: const saveUser如果保存操作失败并且saveUse ...
问TypeORM -在侦听器方法中使用事务(BeforeUpdate)EN您可以使用Subscriber而不是Listener，您可以在TypeORM ...
Unrelated, is there a way for the BeforeUpdate listener to have some context into what fields are changing? In my case, I'm attempting to perform a cryptographic operation and need to find away around performing this operation more than once on a field. ...
First of all, you are expecting it will create database tables for you and find / insert / update / delete your data without the pain of having to write lots of hardly maintainable SQL queries. This guide will show you how to set up TypeORM from scratch and make it do what you are ...
)Notice that we now set the photo's metadata property, instead of the metadata's photo property as before. The cascade feature only works if you connect the photo to its metadata from the photo's side. If you set the metadata side, the metadata would not be saved automatically....
Once a controller is created, it needs to be added to the module definition before Nest.js can easily recognise it. This could be the root ApplicationModule or any other module created within the application. More about this in the module section of this post. ...
replaced cascadeUpdate with cascade: ["update"] syntax from relation options. now when one-to-one or many-to-one relation is loaded and its not set (set to null) ORM returns you entity with relation set to null instead of undefined property as before. now relation id can be set directly...
Notice that we now set the photo's metadata property, instead of the metadata's photo property as before. The cascade feature only works if you connect the photo to its metadata from the photo's side. If you set the metadata's side, the metadata would not be saved automatically. Creating...
After creating the authentication endpoints, let's use cURL to test them before we create our front-end mobile application in the next tutorial. First, run the following command from the root of your project to start the Node (Nest.js) development server: ...
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