jQuery Validation. Applying javascript logic (OR) to a custom rule

Question

I've written the following simple rule for jQuery Validation:

        jQuery.validator.addMethod("notEqual", function(value, element, param) 
        {
          return this.optional(element) || value != param;
        }, "This field is required");

This works such that I can say:

        $("#form").validate({
                rules: 
                {
                    field1: {notEqual: "Please Select", required: true},
                    field2: {notEqual: "Year", required: true}
                },
                messages: 
                {
                    field1: {
                            notEqual: "This field is required", 
                            required: "This field is required"
                            }
                    field2: {
                            notEqual: "This field is required", 
                            required: "This field is required"
                            }
                },

                submitHandler: function(form) {
                form.submit();
            }
        });

However I want to be able to say that any one field is not allowed to be equal to multiple things e.g.

field1: {notEqual: "Please Select" || "Year" || "Some Value", required: true},

But I have tried this syntax as well as a few other ways of arranging the "ÖR" operator and none of them work. Can anyone help? Thanks.

the values that you don't want to match ( "Please Select", "Year", "Some Value") where are they coming from? Are they values of other form fields or are they fixed text values? — politus
– politus, Commented Nov 27, 2012 at 10:11

Community · Accepted Answer · 2017-05-23 11:56:11Z

1

You can pass a JavaScript array as a parameter to a validation method, as described in the answer to jQuery Validation plugin custom method. Multiple parameters

for instance

field1: {notEqual: ["Please Select", "Year", "Some Value"], required: true},

then have your custom method something like this

 jQuery.validator.addMethod("notEqual", function(value, element, param) 
 {
  var result = value != param[0] && value != param[1] && value != param[2]; 
  return this.optional(element) || result;
 }, "This field is required");

edited May 23, 2017 at 11:56

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answered Nov 27, 2012 at 22:15

politus

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