Find rows where association count is between passed values - mysql

Question

I am trying to find all the rows with their count of associated model.
It should only return those rows which have count of associations between two passed values.
This is what I tried, but getting sql exception.
db.Employee.findAll({
where: {
$assignedJobCount$: {
[Op.between]: [0, 100],
},
},
include: [
{
model: db.AssignedJob,
required: true,
attributes: ['emp_id'],
},
],
attributes: [
'id',
'alternate_mobile',
['employee_unique_id', 'unique_id'],
[Sequelize.fn('COUNT', Sequelize.col('AssignedJobs.emp_id')), 'assignedJobCount'],
],
order: [['id', 'ASC']],
subQuery: false,
group: ['Employee.id'],
limit: 20,
});
return JSON.parse(JSON.stringify(mechanics));
};
It throws below error,
sql:
'SELECT
`Employee`.`id`,
`Employee`.`alternate_mobile`,
`Employee`.`employee_unique_id` AS `unique_id`,
COUNT(`AssignedJobs`.`emp_id`) AS `assignedJobCount`,
`AssignedJobs`.`id` AS `AssignedJobs.id`,
`AssignedJobs`.`emp_id` AS `AssignedJobs.emp_id`
FROM
`employee` AS `Employee`
INNER JOIN `assigned_jobs` AS `AssignedJobs` ON
`Employee`.`id` = `AssignedJobs`.`emp_id`
WHERE
`assignedJobCount` BETWEEN 0 AND 100
GROUP BY
`Employee`.`id`
ORDER BY
`Employee`.`id` ASC
LIMIT 20;',
parameters: undefined
}
SequelizeDatabaseError: Unknown column 'assignedJobCount' in 'where clause'

Answer 1

I fixed it by converting where clause into having clause as below.
db.Employee.findAll({
having: {
assignedJobCount: {
[Op.between]: [0, 100],
},
},
include: [
{
model: db.AssignedJob,
required: true,
attributes: ['emp_id'],
},
],
attributes: [
'id',
'alternate_mobile',
['employee_unique_id', 'unique_id'],
[Sequelize.fn('COUNT', Sequelize.col('AssignedJobs.emp_id')), 'assignedJobCount'],
],
order: [['id', 'ASC']],
subQuery: false,
group: ['Employee.id'],
limit: 20,
});
return JSON.parse(JSON.stringify(mechanics));
};