loopback-history-extension
Saving history of Create
, Update
, Delete
of a table sometimes is a big problem in data model design level.
A good approach for saving history is about adding some columns to your tables:
UID
: A unique record identifier of the historyBeginDate
: Record creation dateEndDate
: Record deletion dateID
: History of one data is accessable using their same ID
- Per every
Create
we will create a new record in table - Per every
Update
we will invalid last history, create new record - Per every
Delete
we will invalid last history
Now, using this simple extension you can add all history features to your models and repositories.
Installation
npm i --save loopback-history-extension
Usage
History Model
- Change your model parent class from
Entity
toHistoryEntity
- Remove
id
property from your model declaration
Example
Change your model from:
To:
;
Tip
Don't use unique
columns in your models
Convert your model from:
To:
History Repository Mixin
Change your repository parent class from DefaultCrudRepository
to HistoryCrudRepositoryMixin()()
Example
Change your repository from:
To:
;
Contributions
License
This project is licensed under the MIT license.
Copyright (c) KoLiBer (koliberr136a1@gmail.com)