How to use IS NOT NULL in Knex JS

Question

I am trying to create the following query using knex:

SELECT * FROM users group by users.location having users.photo is not null

as follows:

knex("users").groupBy("users.location").having("users.photo", "IS NOT", "Null")

I am getting the following error on this:

The operator IS NOT is not permitted

I've gone through their documentation and couldn't find anything useful.

Solution 1

According to the docs, .havingRaw is what you need:

knex("users").groupBy("users.location").havingRaw("users.photo IS NOT ?", [null]);

On the other hand, do a knex.raw at once unless there is any remaining advantage using the builder on this specific case.

Solution 2

Have you tried:

knex("users").whereNotNull("photo").groupBy("location")

Solution 3

The docs have the answers. There is whereNull, whereNotNull, havingNull, havingNotNull and so on.

From the DOCS:

havingNull — .havingNull(column)
Adds a havingNull clause to the query.

knex.select('*').from('users').havingNull('email')

Outputs:

select * from `users` having `email` is null

havingNotNull — .havingNotNull(column)
Adds a havingNotNull clause to the query.

knex.select('*').from('users').havingNotNull('email')

Outputs:

select * from `users` having `email` is not null

Give it a try using the knex query lab: http://michaelavila.com/knex-querylab/