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adding basic js validation for forms
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| /* ======================================================================== | ||
| * Bootstrap (plugin): validator.js v0.8.1 | ||
| * ======================================================================== | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2015 Cina Saffary. | ||
| * Made by @1000hz in the style of Bootstrap 3 era @fat | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| * ======================================================================== */ | ||
|
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| +function ($) { | ||
| 'use strict'; | ||
|
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| var inputSelector = ':input:not([type="submit"], button):enabled:visible' | ||
| // VALIDATOR CLASS DEFINITION | ||
| // ========================== | ||
|
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| var Validator = function (element, options) { | ||
| this.$element = $(element) | ||
| this.options = options | ||
|
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| options.errors = $.extend({}, Validator.DEFAULTS.errors, options.errors) | ||
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| for (var custom in options.custom) { | ||
| if (!options.errors[custom]) throw new Error('Missing default error message for custom validator: ' + custom) | ||
| } | ||
|
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| $.extend(Validator.VALIDATORS, options.custom) | ||
|
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| this.$element.attr('novalidate', true) // disable automatic native validation | ||
| this.toggleSubmit() | ||
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| this.$element.on('input.bs.validator change.bs.validator focusout.bs.validator', $.proxy(this.validateInput, this)) | ||
| this.$element.on('submit.bs.validator', $.proxy(this.onSubmit, this)) | ||
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| this.$element.find('[data-match]').each(function () { | ||
| var $this = $(this) | ||
| var target = $this.data('match') | ||
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| $(target).on('input.bs.validator', function (e) { | ||
| $this.val() && $this.trigger('input.bs.validator') | ||
| }) | ||
| }) | ||
| } | ||
|
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| Validator.DEFAULTS = { | ||
| delay: 500, | ||
| html: false, | ||
| disable: true, | ||
| custom: {}, | ||
| errors: { | ||
| match: 'Does not match', | ||
| minlength: 'Not long enough' | ||
| }, | ||
| feedback: { | ||
| success: 'glyphicon-ok', | ||
| error: 'glyphicon-warning-sign' | ||
| } | ||
| } | ||
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| Validator.VALIDATORS = { | ||
| 'native': function ($el) { | ||
| var el = $el[0] | ||
| return el.checkValidity ? el.checkValidity() : true | ||
| }, | ||
| match: function ($el) { | ||
| var target = $el.data('match') | ||
| return !$el.val() || $el.val() === $(target).val() | ||
| }, | ||
| minlength: function ($el) { | ||
| var minlength = $el.data('minlength') | ||
| return !$el.val() || $el.val().length >= minlength | ||
| } | ||
| } | ||
|
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| Validator.prototype.validateInput = function (e) { | ||
| var $el = $(e.target) | ||
| var prevErrors = $el.data('bs.validator.errors') | ||
| var errors | ||
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| if ($el.is('[type="radio"]')) $el = this.$element.find('input[name="' + $el.attr('name') + '"]') | ||
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| this.$element.trigger(e = $.Event('validate.bs.validator', {relatedTarget: $el[0]})) | ||
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| if (e.isDefaultPrevented()) return | ||
|
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| var self = this | ||
|
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| this.runValidators($el).done(function (errors) { | ||
| $el.data('bs.validator.errors', errors) | ||
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| errors.length ? self.showErrors($el) : self.clearErrors($el) | ||
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| if (!prevErrors || errors.toString() !== prevErrors.toString()) { | ||
| e = errors.length | ||
| ? $.Event('invalid.bs.validator', {relatedTarget: $el[0], detail: errors}) | ||
| : $.Event('valid.bs.validator', {relatedTarget: $el[0], detail: prevErrors}) | ||
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| self.$element.trigger(e) | ||
| } | ||
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| self.toggleSubmit() | ||
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| self.$element.trigger($.Event('validated.bs.validator', {relatedTarget: $el[0]})) | ||
| }) | ||
| } | ||
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| Validator.prototype.runValidators = function ($el) { | ||
| var errors = [] | ||
| var deferred = $.Deferred() | ||
| var options = this.options | ||
|
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| $el.data('bs.validator.deferred') && $el.data('bs.validator.deferred').reject() | ||
| $el.data('bs.validator.deferred', deferred) | ||
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| function getErrorMessage(key) { | ||
| return $el.data(key + '-error') | ||
| || $el.data('error') | ||
| || key == 'native' && $el[0].validationMessage | ||
| || options.errors[key] | ||
| } | ||
|
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| $.each(Validator.VALIDATORS, $.proxy(function (key, validator) { | ||
| if (($el.data(key) || key == 'native') && !validator.call(this, $el)) { | ||
| var error = getErrorMessage(key) | ||
| !~errors.indexOf(error) && errors.push(error) | ||
| } | ||
| }, this)) | ||
|
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| if (!errors.length && $el.val() && $el.data('remote')) { | ||
| this.defer($el, function () { | ||
| var data = {} | ||
| data[$el.attr('name')] = $el.val() | ||
| $.get($el.data('remote'), data) | ||
| .fail(function (jqXHR, textStatus, error) { errors.push(getErrorMessage('remote') || error) }) | ||
| .always(function () { deferred.resolve(errors)}) | ||
| }) | ||
| } else deferred.resolve(errors) | ||
|
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| return deferred.promise() | ||
| } | ||
|
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| Validator.prototype.validate = function () { | ||
| var delay = this.options.delay | ||
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| this.options.delay = 0 | ||
| this.$element.find(inputSelector).trigger('input.bs.validator') | ||
| this.options.delay = delay | ||
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| return this | ||
| } | ||
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| Validator.prototype.showErrors = function ($el) { | ||
| var method = this.options.html ? 'html' : 'text' | ||
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| this.defer($el, function () { | ||
| var $group = $el.closest('.form-group') | ||
| var $block = $group.find('.help-block.with-errors') | ||
| var $feedback = $group.find('.form-control-feedback') | ||
| var errors = $el.data('bs.validator.errors') | ||
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| if (!errors.length) return | ||
|
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| errors = $('<ul/>') | ||
| .addClass('list-unstyled') | ||
| .append($.map(errors, function (error) { return $('<li/>')[method](error) })) | ||
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| $block.data('bs.validator.originalContent') === undefined && $block.data('bs.validator.originalContent', $block.html()) | ||
| $block.empty().append(errors) | ||
| $group.addClass('has-error') | ||
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| $feedback.length | ||
| && $feedback.removeClass(this.options.feedback.success) | ||
| && $feedback.addClass(this.options.feedback.error) | ||
| && $group.removeClass('has-success') | ||
| }) | ||
| } | ||
|
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| Validator.prototype.clearErrors = function ($el) { | ||
| var $group = $el.closest('.form-group') | ||
| var $block = $group.find('.help-block.with-errors') | ||
| var $feedback = $group.find('.form-control-feedback') | ||
|
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| $block.html($block.data('bs.validator.originalContent')) | ||
| $group.removeClass('has-error') | ||
|
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| $feedback.length | ||
| && $feedback.removeClass(this.options.feedback.error) | ||
| && $feedback.addClass(this.options.feedback.success) | ||
| && $group.addClass('has-success') | ||
| } | ||
|
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| Validator.prototype.hasErrors = function () { | ||
| function fieldErrors() { | ||
| return !!($(this).data('bs.validator.errors') || []).length | ||
| } | ||
|
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| return !!this.$element.find(inputSelector).filter(fieldErrors).length | ||
| } | ||
|
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| Validator.prototype.isIncomplete = function () { | ||
| function fieldIncomplete() { | ||
| return this.type === 'checkbox' ? !this.checked : | ||
| this.type === 'radio' ? !$('[name="' + this.name + '"]:checked').length : | ||
| $.trim(this.value) === '' | ||
| } | ||
|
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| return !!this.$element.find(inputSelector).filter('[required]').filter(fieldIncomplete).length | ||
| } | ||
|
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| Validator.prototype.onSubmit = function (e) { | ||
| this.validate() | ||
| if (this.isIncomplete() || this.hasErrors()) e.preventDefault() | ||
| } | ||
|
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| Validator.prototype.toggleSubmit = function () { | ||
| if(!this.options.disable) return | ||
| var $btn = $('button[type="submit"], input[type="submit"]') | ||
| .filter('[form="' + this.$element.attr('id') + '"]') | ||
| .add(this.$element.find('input[type="submit"], button[type="submit"]')) | ||
| $btn.toggleClass('disabled', this.isIncomplete() || this.hasErrors()) | ||
| .css({'pointer-events': 'all', 'cursor': 'pointer'}) | ||
| } | ||
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| Validator.prototype.defer = function ($el, callback) { | ||
| callback = $.proxy(callback, this) | ||
| if (!this.options.delay) return callback() | ||
| window.clearTimeout($el.data('bs.validator.timeout')) | ||
| $el.data('bs.validator.timeout', window.setTimeout(callback, this.options.delay)) | ||
| } | ||
|
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| Validator.prototype.destroy = function () { | ||
| this.$element | ||
| .removeAttr('novalidate') | ||
| .removeData('bs.validator') | ||
| .off('.bs.validator') | ||
|
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| this.$element.find(inputSelector) | ||
| .off('.bs.validator') | ||
| .removeData(['bs.validator.errors', 'bs.validator.deferred']) | ||
| .each(function () { | ||
| var $this = $(this) | ||
| var timeout = $this.data('bs.validator.timeout') | ||
| window.clearTimeout(timeout) && $this.removeData('bs.validator.timeout') | ||
| }) | ||
|
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| this.$element.find('.help-block.with-errors').each(function () { | ||
| var $this = $(this) | ||
| var originalContent = $this.data('bs.validator.originalContent') | ||
|
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| $this | ||
| .removeData('bs.validator.originalContent') | ||
| .html(originalContent) | ||
| }) | ||
|
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| this.$element.find('input[type="submit"], button[type="submit"]').removeClass('disabled') | ||
|
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| this.$element.find('.has-error').removeClass('has-error') | ||
|
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| return this | ||
| } | ||
|
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| // VALIDATOR PLUGIN DEFINITION | ||
| // =========================== | ||
|
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|
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| function Plugin(option) { | ||
| return this.each(function () { | ||
| var $this = $(this) | ||
| var options = $.extend({}, Validator.DEFAULTS, $this.data(), typeof option == 'object' && option) | ||
| var data = $this.data('bs.validator') | ||
|
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| if (!data && option == 'destroy') return | ||
| if (!data) $this.data('bs.validator', (data = new Validator(this, options))) | ||
| if (typeof option == 'string') data[option]() | ||
| }) | ||
| } | ||
|
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| var old = $.fn.validator | ||
|
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| $.fn.validator = Plugin | ||
| $.fn.validator.Constructor = Validator | ||
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| // VALIDATOR NO CONFLICT | ||
| // ===================== | ||
|
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| $.fn.validator.noConflict = function () { | ||
| $.fn.validator = old | ||
| return this | ||
| } | ||
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| // VALIDATOR DATA-API | ||
| // ================== | ||
|
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| $(window).on('load', function () { | ||
| $('form[data-toggle="validator"]').each(function () { | ||
| var $form = $(this) | ||
| Plugin.call($form, $form.data()) | ||
| }) | ||
| }) | ||
|
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| }(jQuery); |
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