Dynamically change error messages in Kendo UI validator? - kendo-ui

think I have a 2 text fields. Can I change there error messages according to text fields.
Here is a example.
1st text box is a email field and it is required field.
So I keep it a error messages in a array :
["this field is required", "enter a valid e mail"]
2 text box is required field.
Its error message :
["enter a valid value in the field"]
but in kendo ui validator like this ...
var validator = $("#formID").kendoValidator(
{ messages : {
required : "this field is required",
email : "enter a valid email address"
}
}).data("kendoValidator");
How I change these values dynamically according to the text fields error messages??

you can create function for both required and email to customize error messages according to html input fields.
<form id="myform">
<input name="username" required /> <br />
<input type="email" name="userEmail" required data-message="My custom email message" /> <br />
<button>Validate</button>
</form>
Script section:
<script>
$("#myform").kendoValidator({
messages: {
// defines a message for the 'custom' validation rule
custom: "Please enter valid value for my custom rule",
// overrides the built-in message for the required rule
required: function(input) {
return getRequiredMessage(input);
},
// overrides the built-in message for the email rule
// with a custom function that returns the actual message
email: function(input) {
return getMessage(input);
}
},
rules: {
custom: function(input) {
if (input.is("[name=username]")) {
return input.val() === "Tom";
}
return true;
}
}
});
function getMessage(input) {
return input.data("message");
}
function getRequiredMessage(input) {
if (input.is("[name=username]")) {
return "User name is required";
}
else
return input.attr("name") + " Field is Required";
}
</script>
Jsfiddle
Here in getRequiredMessage function i customized error message based on input name.
I provided "User name is required" for input username. you can provide the error message even from array if you wish.

Related

Yup validation with one field but two possible options (OR)

I am trying to create an input that takes a string that will be used as the href value for a tag. The href can be a url OR an email (for mailto:).
It works if I just check for email, or if I just check for URL. However, I want to check for one or the other. I am looking through yup documentation but I can't find a way to do an OR.
I noticed that there is a when to test for another field but I'm not checking if another field is true or not, or use test but I also can't seem to get it to work.
const vSchema = yup.object().shape({
text: yup.string().required(),
href: yup
.string()
.email('Link must be a URL or email')
.url('Link must be a URL or email')
.required('Link is a required field'),
});
test this
yup.addMethod(yup.string, "or", function(schemas, msg) {
return this.test({
name: "or",
message: "Please enter valid url or email." || msg,
test: value => {
if (Array.isArray(schemas) && schemas.length > 1) {
const resee = schemas.map(schema => schema.isValidSync(value));
return resee.some(res => res);
} else {
throw new TypeError("Schemas is not correct array schema");
}
},
exclusive: false
});
});

Semantic-ui form rule only if option is selected

I am using semantic ui and am trying to do some form validation with it.
The scenario I have is the user has 2 options: email,or phone app verrifcation. They select one of the options and enter whatever in a text field then click submit.
However I am not sure how to do rules on this with semantic UI.
I know if I wanted to check if it was blank I could do something like this:
$('.ui.form')
.form({
fields: {
CODE: {
identifier: 'code',
rules: [
{
type : 'empty',
prompt : 'Please enter your verification code'
}
]
}
} } );
However I would like additional rules based upon which option is selected. I have javascript that currently tells me the value of what is selected, and is updated on change. Unsure how to add it into the rules though, so that I can be like -- If phone was select, must be exactly 6 chars long, or IF email was selected, must be 18 chars long (different lengths for different option).
Is there a way to have conditional rules like this? Closet I could find was:
depends: 'id'
Which checks to ensure it is not empty.
Does anyone know how to have conditional rules such as this based on another form element? I am using the most recent version of Semantic-UI
You can do so by adding custom rules.
$.fn.form.settings.rules.atLeastOne = function (value, fields) {
fieldsToCompare = fields.split(",")
if (value) {
// current input is not empty
return true
} else {
// check the other input field(s)
// atLeastOne is not empty
atLeastOne = false
for (i = 0; i < fieldsToCompare.length; i++) {
// gets input based on id
if ($("#" + fieldsToCompare[i]).val()) {
atLeastOne = true
}
}
return atLeastOne
}
}
$(".ui.form").form({
fields: {
number:{
identifier: "number",
rules: [{
type: "exactLength[6]",
prompt: "number has to be 6 chars long"
}, {
// include the input fields to check atLeastOne[email, address, ...]
type: "atLeastOne[email]",
prompt: "Please provide an email or a number"
}]
},
email: {
identifier: "email",
rules: [{
type: "exactLength[18]",
prompt: "email has to be 18 chars long"
}, {
type: "atLeastOne[number]",
prompt: "Please provide an email or a number"
}]
}
}
});
Note that the function uses the input id as the identifier and not the input name. You might also want to look at optional fields.

How do I dynamically set validations fields in vuelidate

I'm using VueJS2 with vuelidate library. I can validate the fields based on the validation objects. The validation will execute during computed time. But My validations objects is fixed, instead of dynamic. I have some fields will hide based on the selection.
import { validationMixin } from 'vuelidate'
import { required, maxLength, email } from 'vuelidate/lib/validators'
export default {
mixins: [validationMixin],
validations: {
company_name: { required },
company_position_title: { required }
},
methods: {
submit(){
this.$v.touch();
if(this.$v.$invalid == false){
// All validation fields success
}
}
}
}
HTML
<v-select
label="Who are you?"
v-model="select" // can be 'company' or 'others'
:items="items"
:error-messages="selectErrors"
#change="$v.select.$touch();resetInfoFields();"
#blur="$v.select.$touch()"
required
></v-select>
<v-text-field
label="Company Name"
v-model="company_name"
:error-messages="companyNameErrors"
:counter="150"
#input="$v.companyName.$touch()"
#blur="$v.companyName.$touch()"
v-show="select == 'Company'"
></v-text-field>
<v-text-field
label="Company Position Title"
v-model="company_position_title"
:error-messages="companyPositionErrors"
:counter="150"
#input="$v.companyPosition.$touch()"
#blur="$v.companyPosition.$touch()"
v-show="select == 'Company'"
></v-text-field>
<v-btn #click="submit">submit</v-btn>
Problem
When I select 'other' option and click submit, the this.$v.$invalid is still true. It should be false as there is no validation fields required.
When I select 'company', that two fields must required and validated.
you need a dynamic validation schema
validations () {
if (!this.select === 'company') {
return {
company_name: { required },
company_position_title: { required }
}
}
}
More info: Dynamic validation schema
Another way is using requiredIf
itemtocheck: {
requiredIf: requiredIf(function () {
return this.myitem !== 'somevalue'
}),
minLength: minLength(2) },

Adding error messages to angular-formly

We are using angluar-formly forms to make our forms. However when a user inputs an invalid input we would like for them to have a clear error message. So I have created a validator using expression: and message: however I cannot get the message to show up.
The controllers fields value contains:
{
key: 'port',
defaultValue: 2301,
type: 'input',
validators: {
isPort: {
expression : function(viewValue, modelValue) {
var value = modelValue || viewValue;
return !value || (/^\d+$/.test(value) && value!='' && value>0 && value<65535);
},
message: '$viewValue +" is not a valid port"'
}
},
templateOptions: {
type: 'number',
required: true,
label: 'Port',
placeholder: 'Enter Port'
}
}
and we call on the fields in our html code:
<formly-form model="execServers" fields="informationFields" form="form2"></formly-form>
However we do not see the error message show up. It does go to red and show invalid just no message.
I have also created a jsbin depicting my problem http://jsbin.com/weyotudoqu/1/edit?html,js,console,output
I am pretty sure I am just missing something simple as I have looked at lots of examples which do this exact thing and have the text show up http://angular-formly.com/#/example/intro/codementor
I think it doesn't show because you don't set to display error in html of input. Like that:
<md-input-container class="md-block">
<label>{{to.label}}</label>
<input ng-model="model[options.key]">
<div class="my-messages" ng-messages="options.formControl.$error" ng-if="options.validation.errorExistsAndShouldBeVisible">
<div class="error-message" ng-message="{{::name}}" ng-repeat="(name, message) in ::options.validation.messages">
{{message(options.formControl.$viewValue, options.formControl.$modelValue, this)}}
</div>
</div>
</md-input-container>
You can see detail at http://angular-formly.com/#/example/advanced/validators
I was able to get this fixed. I realize I was missing some additional configurations as are outlined in this example
http://angular-formly.com/#/example/other/error-summary

Assistance with a custom jquery validate error message function

We have a rule that all of our validation messages must be in a summary, and thus the default "this field is required" doesn't cut it because the messages lose their context in a summary and therefore need specific field indicators.
I have a solution that I like rather well, but it soon became clear that there was a need for messages outside of just the required field (email, url, custom methods like phoneUS, etc), so I made some additions to my function.
I've been using jQuery for a while, but I'm not an expert in the optimization area, so I wanted to get some expert help on whether the function below could be optimized...my question is, "is there actually a better way to handle custom error messages in a summary?"
$('.required, .email').each(function(index) {
var $this = $(this);
var label = (
$this.is(':radio')
? $("label[data-name='"+$this.attr('name')+"']")
: label = $("label[for='"+$this.attr('id')+"']")
);
var customMessages = [{}];
if($this.hasClass('required')){
customMessages.required = "'" + label.text() + "' is required.";
}
if($this.hasClass('email')){
customMessages.email = "'" + label.text() + "' has an invalid email address.";
}
$this.rules("add", {
messages: customMessages
});
});
Here is the jsFiddle:
http://jsfiddle.net/GD5nw/1/
So why not just assign the custom message on a field-by-field basis for each field as is most typically done? It seems less verbose than what you've been doing.
http://docs.jquery.com/Plugins/Validation/validate#toptions
Example for input elements with name attribute assigned as first, second, and address.
$('#myform').validate({
rules: {
first: {
required: true
},
second: {
required: true
},
address: {
required: true,
digits: true // just an example
}
},
messages: {
first: {
required: "your first name is required"
},
second: {
required: "your last name is required"
},
address: {
required: "your address is required",
digits: "must only use digits on address"
}
}
});
Working Demo: http://jsfiddle.net/x4YBw/

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