3.0.0.RC1 - f:all - Invalid markup is being generated for numeric fields. Commas are added to type number.

[codeconsole]

I have created a very basic grails 4.0.0.RC1 app to demonstrate the problem:

https://github.com/codeconsole/grailsnumberbug

package numberbug

class Bug {

    int num = 123456789

    static constraints = {
    }
}

<f:all bean="bug"/>

creates an input field
<input type="number" name="num" value="123,456,789" required="" id="num">

which is not valid markup in either Chrome or Safari.

The default behavior should be to not put commas in numbers due to the fact it breaks everything

[codeconsole]

Not sure why you are formatting a number for an input value? I would think it would be best to change this

attrs.value = numberFormatter.format(propertyAccessor.value)

to

attrs.value = propertyAccessor.value

https://github.com/grails-fields-plugin/grails-fields/blob/master/grails-app/taglib/grails/plugin/formfields/FormFieldsTagLib.groovy#L729

	CharSequence renderNumericInput(BeanPropertyAccessor propertyAccessor, Map model, Map attrs) {
		Constrained constrained = (Constrained) model.constraints

		if (!attrs.type && constrained?.inList) {
			attrs.from = constrained.inList
			if (!model.required) attrs.noSelection = ["": ""]
			return g.select(attrs)
		} else if (constrained?.range) {
			attrs.type = attrs.type ?: "range"
			attrs.min = constrained.range.from
			attrs.max = constrained.range.to
		} else {
			attrs.type = attrs.type ?: getDefaultNumberType(model)
			if (constrained?.scale != null) attrs.step = "0.${'0' * (constrained.scale - 1)}1"
			if (constrained?.min != null) attrs.min = constrained.min
			if (constrained?.max != null) attrs.max = constrained.max
		}

		if (localizeNumbers && propertyAccessor?.value != null) {
			attrs.value = numberFormatter.format(propertyAccessor.value)
		}

		return g.field(attrs)
	}

[rvanderwerf]

So it looks like you can set the property grails.plugin.fields.localizeNumbers = false to fix this but it might not format the number at all.

[rvanderwerf]

actually it will still format the view part and not the input area with grails.plugin.fields.localizeNumbers = false so I don't think this is a bug. This should probably be the default though, as you said formating input type number is invalid.

[codeconsole]

Hi Ryan,

Thanks for identifying
grails.plugin.fields.localizeNumbers = false

That got my forms working again.

I don't have a bias on whether is should be true or false, but in any case, the input value should DEFINITELY NOT be formatted because it is invalid markup and fails in both Chrome and Safari.

I recommend either way changing

attrs.value = numberFormatter.format(propertyAccessor.value)

to

attrs.value = propertyAccessor.value

as previously mentioned.

[rvanderwerf]

yes it appears the only place that flag is used for that field, so I'm not sure why it's configurable at all if true just makes an invalid input box.