Odoo 8 - add event handler on input text in javascript

Question

is there a way to add an event handler which handles an onchange event on input text. I need to put constraint on the invoice line where the user shouldn't fill a quantity greater than the value in the text box.

<field name="quantity" event="onchange(this)"/>

onchange(){
console.log..
}

10x

Answer 1

For your task you don't need to use js, use python code for this, you can use @api.onchange and throw warnings or you can also create db constrains from there. db constrains works only when saving while @api.onchange works during editing

And if you still want to use js and cause headaches you can use jQuery to set onchange on any fields like this

$(SELECTOR).change(function (e) {});