#265 Helpers._sqlFormat should be improved regarding detecting whether a val === 'number'

[Jira Trac]

Currently in *Helpers._sqlFormat()* it has the following code:

{code}
...
if (typeof val === 'number') {
return val + '';
}

return ' + _escapeString(val) + ';
{code}

It's not very correct to determine whether a value is a number of not this way. The array contain all string values after user JSON.parse() the data received from a Browser request.

So, numbers will also have typeof === 'string'. The correct way is to call the following function:

{code}
function isNumber(n) {
return !isNaN(parseFloat(n)) isFinite(n);
}
{code}

This is not that big of a problem, since 8.4.1 and later have automatic type CASTing for integer. But it's not recommended to rely on that.