gistfile1.txt

edit(req, res) {
        member.find(req.params.id, function (member) {
            if (!member) return res.send("Intructor not found!")

            member.birth = date(member.birth).iso

            member.instructorsSelectOptions(function (options) {
                return res.render("members/edit", { members, instructorOptions: options })
            })
        })
    },

instructorsSelectOptions(callback) {
        db.query(
            `SELECT name, id 
            FROM instructors`,
            function(err, results) {
            if (err) throw `Database error! ${err}`

            callback(results.rows)
        })
    }



D:\Codigos\DB-gym\src\app\controllers\members.js:42
            member.instructorsSelectOptions(function (options) {
                   ^

TypeError: member.instructorsSelectOptions is not a function
    at D:\Codigos\DB-gym\src\app\controllers\members.js:42:20
    at D:\Codigos\DB-gym\src\app\models\member.js:50:13
    at Query.<anonymous> (D:\Codigos\DB-gym\node_modules\pg-pool\index.js:371:18)
    at Query.handleReadyForQuery (D:\Codigos\DB-gym\node_modules\pg\lib\query.js:121:12)
    at Connection.<anonymous> (D:\Codigos\DB-gym\node_modules\pg\lib\client.js:256:19)
    at Connection.emit (events.js:310:20)
    at Socket.<anonymous> (D:\Codigos\DB-gym\node_modules\pg\lib\connection.js:120:12)
    at Socket.emit (events.js:310:20)
    at addChunk (_stream_readable.js:286:12)
    at readableAddChunk (_stream_readable.js:268:9)
[nodemon] app crashed - waiting for file changes before starting...