bootstrapvalidator/src/js/validator/greaterThan.js

The best jQuery plugin to validate form fields. Designed to use with Bootstrap 3

(function($) {
    $.fn.bootstrapValidator.i18n.greaterThan = $.extend($.fn.bootstrapValidator.i18n.greaterThan || {}, {
        'default': 'Please enter a value greater than or equal to %s',
        notInclusive: 'Please enter a value greater than %s'
    });

    $.fn.bootstrapValidator.validators.greaterThan = {
        html5Attributes: {
            message: 'message',
            value: 'value',
            inclusive: 'inclusive'
        },

        enableByHtml5: function($field) {
            var type = $field.attr('type'),
                min  = $field.attr('min');
            if (min && type !== 'date') {
                return {
                    value: min
                };
            }

            return false;
        },

        /**
         * Return true if the input value is greater than or equals to given number
         *
         * @param {BootstrapValidator} validator Validate plugin instance
         * @param {jQuery} $field Field element
         * @param {Object} options Can consist of the following keys:
         * - value: Define the number to compare with. It can be
         *      - A number
         *      - Name of field which its value defines the number
         *      - Name of callback function that returns the number
         *      - A callback function that returns the number
         *
         * - inclusive [optional]: Can be true or false. Default is true
         * - message: The invalid message
         * @returns {Boolean|Object}
         */
        validate: function(validator, $field, options) {
            var value = $field.val();
            if (value === '') {
                return true;
            }
            
            value = this._format(value);
            if (!$.isNumeric(value)) {
                return false;
            }

            var compareTo      = $.isNumeric(options.value) ? options.value : validator.getDynamicOption($field, options.value),
                compareToValue = this._format(compareTo);

            value = parseFloat(value);
			return (options.inclusive === true || options.inclusive === undefined)
                    ? {
                        valid: value >= compareToValue,
                        message: $.fn.bootstrapValidator.helpers.format(options.message || $.fn.bootstrapValidator.i18n.greaterThan['default'], compareTo)
                    }
                    : {
                        valid: value > compareToValue,
                        message: $.fn.bootstrapValidator.helpers.format(options.message || $.fn.bootstrapValidator.i18n.greaterThan.notInclusive, compareTo)
                    };
        },

        _format: function(value) {
            return (value + '').replace(',', '.');
        }
    };
}(window.jQuery));