Using coalesce with sequelize on node.js - mysql

Question

I have the following query:
select coalesce(round(sum(vdamesatual) /
(select count(*)
from feriados
where month(data)=month(current_date) and
day(data)<day(current_date) and
diadasemana in(2,3,4,5,6) and
feriadonacional=0 and
uf <> (select distinct uforigem from baseprodutos where Empresa = 'test'))
*
(select count(*)
from feriados
where month(data)=month(current_date) and
day(data)>=day(current_date) and
diadasemana in(2,3,4,5,6) and
feriadonacional=0 and
uf <> (select distinct uforigem from baseprodutos where Empresa = 'test'))),0) as projecao
from baseprodutos
where Empresa = 'test' and
UFDest = 'uf' and
Fabricante = 'sample';
As you can see I have a coalesce right after the first select, and I am having trouble finding the right way to write this with sequelize; Would you have some suggestion?

Answer 1

I don't really follow the logic of your query, but the rule in Sequelize is that you can call any function with sequelize.fn() so a simple example of using COALESCE in Sequelize to get a value from 2 columns with an alias would be like this in your attributes:
[[sequelize.fn('COALESCE', mysql.col('col_name'), mysql.col('col_2_name')), 'alias'], 'another_col']
You can include another function if needed, like SUM by doing like this:
[[sequelize.fn('COALESCE', sequelize.fn('SUM', (mysql.col('col_name'), mysql.col('col_2_name'))), (some other code here ...)),'alias']]