Access data from view of custom field

[kertys]

Good day.

There are two entities:

Entity1
- Field1
- Relation One-to-many Entity2

Entity2
- Field2
- CustomField
- Relation Many-to-one Entity1

Please tell me - how can I access the data of Field1 and Field2 from the view of a custom field? (Custom: views/fields/CustomField.js)
If possible, a small example, please.

[yuri]

Hi,

I recommend to create a a foreign in Entity2 for Field1.

Then you will be able to access it with this.model.get('foreignFieldName');

[kertys]

Thanks, everything works great!

[kertys]

And one more question about views/fields/CustomField.js

I need to set the value of CustomField from a third-party custom bash script, the result of which is displayed in stdout.
I try this design:
===
const execFile = require ('child_process').execFile;
var data = execFile('myscript.sh', ['arg1', 'arg2'], (error, stdout, stderr) => {
if (error) {
throw error;
}
console.log (stdout); });
===
but it does not work
Please tell me how to do this?