Semantic-ui: Custom form validation rules

[rodsnjr]

Is there any way to call a direct function to make validation rules?

E.g.

username: {
identifier : 'username',
rules: [
{
type: function(text){
(algorithm ... )
},
prompt : 'Please enter a username'
}
]
}

I don't see anywhere on docs, and something like that would be great!

[jlukic]

You can specify custom form validation rules by adding rules to $.fn.form.settings.rules then referencing the name in your init

$.fn.form.settings.rules.myrule = function(value) {
  return true; // always validate
}

[jlukic]

I'll add this to docs.

[rodsnjr]

Great, thanks, the docs specify

"Validation rules are found in $.fn.form.settings.rules, to add new global validation rules, modify $.fn.form.settings.rules to include your function."

But an example like you gave would be helpful!

[talha-asad]

There are use cases where you wouldn't want to put a rule in $.fn.form.settings.rules for one special field.
I think it would make sense if type is a function and it is run similarly to how a global rule runs? Would make it much more easy to create one-off rules.

[eyalw]

Maybe not "type", because you are no longer specifying a type of validation, but a "validate" param or "fn" param that is given a function.

@jlukic will you consider adding such api? it does sound a bit too messy to put specific form validation rules in the "global scope" of $.fn.form.settings.rules.

[luiz-brandao]

+1 for inline function option

[hbaccara]

+1 for inline function option

[pedroivorbgrodrigues]

+1 for inline function option

[achimkoellner]

+1 for inline function option
this would allow for i18int date-time validation using moment.js and endless other cases

[Buntix]

+ditto
handy for pre-filtering before passing to existing validators, e.g.

function (cardNumber, cardTypes) {
  return $.fn.form.settings.rules.creditCard(cardNumber.replace(/ +/g, ''), cardTypes);
}

to allow people to enter credit card numbers with spaces so they can scan/correct them more easily.

also for prototyping and testing hypotheses before formalising them as part of $.fn.form.settings.rules

[VSG24]

+10000 for inline rules