Hello friends,
Validation is most important thing in any sort of website development to get proper user input. There are mainly two types of validation: Client Side and Server Side. In order to perform client side validation javascript is one of the best options.
While working in magento it is good to know that magento uses a file called form.js (/js/varien/form.js) which has Validation class and it is part of the Prototype javascript library. In Validation class, javascript functions are there to perform form validation. So there is no need to write extra code to perform javascript validation.
In magento applying javascript validation to any form is so simple. Follow the under given steps to apply javascript validation to your custom form.
Step 1: Apply the validation class to your form controls according to your requirement.
For Example:
<input type="text" id="name" name="name" value="" class="required-entry" /> <input type="text" id="dob" name="dob" value="" class="required-entry validate-date"/> <input type="text" id="email" name="email" value="" class="required-entry validate-email"/>
In above example we have three form controls name, dob and email. There we apply required-entry, validate-date and validate-email classes to form controls. And those classes will perform required field validation, date validation and email validation for their respective form control.
Here we applied validation class to form controls because Validation class works by checking form inputs for certain class names.
Step 2: Create a form object to represent your form.
<script type="text/javascript">
//< ![CDATA[
var customForm= new VarienForm('customFormId', true);
//]]>
</script>
Here the first argument customFormId is the Id of your form. And if you set true to second argument then the cursor will automatically move into the first input field. You can also set second argument to false.
Now when user will submit the form and if any improper data is there in user input then validate class will give the proper error message and will not submit the form until user enters proper data.
There are many inbuilt validation classes in magento to perform different types of validation. Here I have listed those:
validate-select
Please select an option
required-entry
This is a required field
validate-number
Please enter a valid number in this field
validate-digits
Please use numbers only in this field. please avoid spaces or other characters such as dots or commas
validate-alpha
Please use letters only (a-z or A-Z) in this field.
validate-code
Please use only letters (a-z), numbers (0-9) or underscore(_) in this field, first character should be a letter.
validate-alphanum
Please use only letters (a-z or A-Z) or numbers (0-9) only in this field. No spaces or other characters are allowed
validate-street
Please use only letters (a-z or A-Z) or numbers (0-9) or spaces and # only in this field
validate-phoneStrict
Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890
validate-phoneLax
Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890
validate-fax
Please enter a valid fax number. For example (123) 456-7890 or 123-456-7890
validate-date
Please enter a valid date
validate-email
Please enter a valid email address. For example johndoe@domain.com.
validate-emailSender
Please use only letters (a-z or A-Z), numbers (0-9) , underscore(_) or spaces in this field.
validate-password
Please enter 6 or more characters. Leading or trailing spaces will be ignored
validate-admin-password
Please enter 7 or more characters. Password should contain both numeric and alphabetic characters
validate-cpassword
Please make sure your passwords match
validate-url
Please enter a valid URL. http:// is required
validate-clean-url
Please enter a valid URL. For example http://www.example.com or http://www.example.com
validate-identifier
Please enter a valid Identifier. For example example-page, example-page.html or anotherlevel/example-page
validate-xml-identifier
Please enter a valid XML-identifier. For example something_1, block5, id-4
validate-ssn
Please enter a valid social security number. For example 123-45-6789
validate-zip
Please enter a valid zip code. For example 90602 or 90602-1234
validate-zip-international
Please enter a valid zip code
validate-date-au
Please use this date format: dd/mm/yyyy. For example 17/03/2006 for the 17th of March, 2006
validate-currency-dollar
Please enter a valid $ amount. For example $100.00
validate-one-required
Please select one of the above options.
validate-one-required-by-name
Please select one of the options.
validate-not-negative-number
Please enter a valid number in this field
validate-state
Please select State/Province
validate-new-password
Please enter 6 or more characters. Leading or trailing spaces will be ignored
validate-greater-than-zero
Please enter a number greater than 0 in this field
validate-zero-or-greater
Please enter a number 0 or greater in this field
validate-cc-number
Please enter a valid credit card number.
validate-cc-type
Credit card number doesn’t match credit card type
validate-cc-type-select
Card type doesn’t match credit card number
validate-cc-exp
Incorrect credit card expiration date
validate-cc-cvn
Please enter a valid credit card verification number.
validate-data
Please use only letters (a-z or A-Z), numbers (0-9) or underscore(_) in this field, first character should be a letter.
validate-css-length
Please input a valid CSS-length. For example 100px or 77pt or 20em or .5ex or 50%
validate-length
Maximum length exceeded
Hope this will help you.
Thanks.
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