Why export Sequelize?

[psaeuerl]

I currently do not understand why Sequelize is exported in ./models/index.cs

db.Sequelize = Sequelize;

module.exports = db;

I do not see it used anywhere and from my current understanding, i do not know why it is exported here.
PS: I´m quite new to sequelize and i´m trying to understand the sample.

Thanks in advance

[sushantdhiman]

You can get static methods like literal, and, fn etc which will be used when building queries, It also expose errors which can be accessed like db.Sequelize.UniqueConstraintError to catch errors

[psaeuerl]

Ahh thank you, this makes sense.
So it is basically best-practice (if only one database is used) to export sequelize with it.
Is the statement above valid?

[sushantdhiman]

If you need those methods or errors you can get them from model.sequelize.Sequelize.fn etc but thats too long for some guys. So its just a way to easily access required methods / errors

Its all up to you how you want to access it, shorter simpler way is better I guess