Loopback: autoupdate value

Question

I have a model with properties: status and statusId where statuses can be:

StatusId & Status are described below:

1. open

2. processing

3. close

4. reject

5. failure

What I want is if I insert or update the status of my model then statusId should automatically update accordingly.

Answer 1

You can use two things to implement this scenario

• Making use of Remote hooks for that model using Observe

<model>.observe('before save', function (ctx, next) { // check the ctx and add the necessary validations }

• Making use of Middle ware functions if you want this functionality to be like a cross cutting concern for the whole of your app

app.remotes().before('**', (ctx, next) => { // do stuff with ctx.args.options next(); });