When I run Model.count, code throw TypeError: callback is not a function #

[leeqiang]

My Code

await Model.count()

Error (I add some log)

// jugglingdb-mysql/lib/mysql.js:505
MySQL.prototype.count = function count(model, callback, where) {
    console.log(model, callback, where) // here 
    var self = this;
    var query = 'SELECT count(*) as cnt FROM ' +
        this.tableEscaped(model);
    if(where){
        query += ' where ' + this._buildWhere(model, where);
    }
    this.queryOne(query, function (err, res) {
        if (err) return callback(err);
        callback(err, res && res.cnt);
    });
};

Screenshot

[leeqiang]

@1602 Is this a bug?? The callback is where and the where is callback?

[1602]

@leeqiang looks like a bug indeed. I believe it happens because order of parameters isn't right, usually callback is the last argument and it seems like jugglingdb core expects it. Reasons behind that are unknown, looks like a really old technical debt (perhaps it is hard to address because this interface shaded by many drivers).

As a workaround you could try supplying empty where object in count call: Model.count({}).