jQuery Validation Plugin - Remote Method帮助

remote method

remote( options )Returns:Boolean

Description: Requests a resource to check the element for validity.

• remote( options )

  • options
    Type: Object
    For the URL of the resource to request for serverside validation (String) or options to fully customize the request, see jQuery.ajax for details.

    These options deep-extend the defaults (dataType:"json", data:{nameOfTheElement:valueOfTheElement}). Any options you provide will override the defaults.

The serverside resource is called via jQuery.ajax (XMLHttpRequest) and gets a key/value pair corresponding to the name of the validated element and its value as a GET parameter. The response is evaluated as JSON and must be true for valid elements, and can be any false, undefined or null for invalid elements, using the default message; or a string, eg. "That name is already taken, try peter123 instead" to display as the error message.

For more examples, take a look the marketo demo and the milk demo.

Examples:

Example: Makes the email field required, an email and does a remote request to check if the given address is already taken.

$("#myform").validate({
    rules: {
        email: {
            required: true,
            email: true,
            remote: "check-email.php"
        }
    }
});

Example: Makes the email field required, an email and does a remote request to check if the given address is already taken. In addition, the http method is set to “post” and the username is sent alongside the email address.

$("#myform").validate({
    rules: {
        email: {
            required: true,
            email: true,
            remote: {
                url: "check-email.php",
                type: "post",
                data: {
                    username: function () {
                        return $("#username").val();
                    }
                }
            }
        }
    }
});

This entry was posted in Methods on May 23, 2013 by jzaefferer.

 

摘自官网：http://jqueryvalidation.org/remote-method