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.first {
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h4 {
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<!-- ###################### BEGINNING OF EXAMPLE ######################-->
<div class="col-md-4">
<h2>Parsley Validator Demo</h2>
<small class="pull-left"><a href="../examples.html"><< Back to examples</a>
— <a href="#" class="play">Try it on CodePen</a>
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<div class="form-group example">
<h4>Correctly fill at least one of these blocks</h4>
<form class="demo-form">
<div data-parsley-check-children="2" data-parsley-validate-if-empty>
<div class="first">
<label for="firstname">Firstname:</label>
<input type="text" class="form-control" name="firstname" data-parsley-length="[4, 20]" data-parsley-group="block-1" />
<label for="lastname">Lastname:</label>
<input type="text" class="form-control" name="lastname" data-parsley-length="[4, 20]" data-parsley-group="block-1" />
</div>
<hr></hr>
<div class="second">
<label for="fullname">Fullname:</label>
<input type="text" class="form-control" name="fullname" data-parsley-length="[8, 40]" data-parsley-group="block-2" />
</div>
</div>
<input type="submit" class="btn btn-default validate" />
</form>
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<div class="explanation">
<p>This example uses a trick. It uses a <tt><div></tt> tag like if it was an input. That input uses a custom validator that succeeds only if one of the groups (here <tt>"block-1"</tt> and <tt>"block-2"</tt>) validate with the <tt>force</tt> option set.
</p>
<p>Note that the <tt><div></tt> contains the fields in question. This way, events like <tt>change</tt> or <tt>input</tt> generated when the user fills in these fields will bubble up to the div and revalidate the custom field.
</p>
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<div class="code-block">
<pre><code class="example">
</code></pre>
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<!-- ###################### END OF EXAMPLE ######################-->
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$(function () {
Parsley.addValidator('checkChildren', {
messages: {en: 'You must correctly fill at least one of these blocks!'},
requirementType: 'integer',
validate: function(_value, requirement, instance) {
for(var i = 1; i <= requirement; i++)
if (instance.parent.isValid({group: 'block-' + i, force: true}))
return true; // One section is filled, this check is valid
return false; // No section is filled, this validation fails
}
});
Parsley.on('form:submit', function() {
alert("The form would be submitted at this point. " +
"For this demo, we interrupt the processing.");
return false; // Don't submit for this demo
});
$('.demo-form').parsley({
inputs: Parsley.options.inputs + ',[data-parsley-check-children]'
});
});
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