#knockout.parsley.js
Knockout.parsley.js is a very simple plugin for knockout allowing you to validate view model throgh parsley library.
It creates all bindings and data attributes you need automatically, no need to learn any DOM api or to make handwork on form elements. All you have to care about is to provide the validation rules to be applied. ;)
License: MIT
Usage
To keep it simple, no special environment or tool is used just old html and plain JS. I leave the structured company development culture to you... :)
Let's have a simple form as below:
<html>
<head>
<style type="text/css">
// put here your parsley CSS styles
</style>
</head>
<body>
<div id="form-panel">
<p>First name: <input data-bind="validValue: firstName" /></p>
<p>Last name: <input data-bind="validValue: lastName" /></p>
</div>
Let's add the JS dependencies: parsley, knockout, jquery, knockout.mapper.js
<script src="../node_modules/jquery/dist/jquery.min.js"></script>
<script src="../node_modules/parsleyjs/dist/parsley.min.js"></script>
<script src="../node_modules/knockout/build/output/knockout-latest.js"></script>
<script src="../node_modules/knockout.mapper.js/knockout.mapper.js"></script>
<script src="../knockout.parsley.js"></script>
Let's define our model with validation rules:
<script type="text/javascript">
var obj = { statics: { }, methods: { } };
obj.dataModel = {
firstName: "Planet",
lastName: "Earth"
};
obj.validation = {
firstName: { required: true, type: "alphanum", minlength: "6" },
lastName: { notblank: true, type: "alphanum", minlength: "6" }
};
Let's create our knockout mappings:
var viewModel = {};
ko.mapObject( viewModel, obj.dataModel, obj.validation, obj.methods, obj.statics );
ko.applyBindings( viewModel );
Let's initiate the Knockout.parsley.js :
ko.parsley.init( [ '#form-panel' ] );
</script>
</body>
</html>
And you are done.