mirror of
https://github.com/lidarr/Lidarr
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606 lines
No EOL
22 KiB
JavaScript
606 lines
No EOL
22 KiB
JavaScript
// Backbone.Validation v0.8.1
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//
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// Copyright (c) 2011-2013 Thomas Pedersen
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// Distributed under MIT License
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//
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// Documentation and full license available at:
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// http://thedersen.com/projects/backbone-validation
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Backbone.Validation = (function(_){
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'use strict';
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// Default options
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// ---------------
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var defaultOptions = {
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forceUpdate: false,
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selector: 'name',
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labelFormatter: 'sentenceCase',
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valid: Function.prototype,
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invalid: Function.prototype
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};
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// Helper functions
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// ----------------
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// Formatting functions used for formatting error messages
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var formatFunctions = {
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// Uses the configured label formatter to format the attribute name
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// to make it more readable for the user
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formatLabel: function(attrName, model) {
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return defaultLabelFormatters[defaultOptions.labelFormatter](attrName, model);
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},
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// Replaces nummeric placeholders like {0} in a string with arguments
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// passed to the function
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format: function() {
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var args = Array.prototype.slice.call(arguments),
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text = args.shift();
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return text.replace(/\{(\d+)\}/g, function(match, number) {
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return typeof args[number] !== 'undefined' ? args[number] : match;
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});
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}
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};
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// Flattens an object
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// eg:
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//
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// var o = {
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// address: {
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// street: 'Street',
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// zip: 1234
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// }
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// };
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//
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// becomes:
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//
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// var o = {
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// 'address.street': 'Street',
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// 'address.zip': 1234
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// };
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var flatten = function (obj, into, prefix) {
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into = into || {};
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prefix = prefix || '';
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_.each(obj, function(val, key) {
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if(obj.hasOwnProperty(key)) {
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if (val && typeof val === 'object' && !(
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val instanceof Array ||
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val instanceof Date ||
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val instanceof RegExp ||
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val instanceof Backbone.Model ||
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val instanceof Backbone.Collection)
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) {
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flatten(val, into, prefix + key + '.');
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}
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else {
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into[prefix + key] = val;
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}
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}
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});
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return into;
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};
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// Validation
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// ----------
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var Validation = (function(){
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// Returns an object with undefined properties for all
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// attributes on the model that has defined one or more
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// validation rules.
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var getValidatedAttrs = function(model) {
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return _.reduce(_.keys(model.validation || {}), function(memo, key) {
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memo[key] = void 0;
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return memo;
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}, {});
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};
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// Looks on the model for validations for a specified
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// attribute. Returns an array of any validators defined,
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// or an empty array if none is defined.
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var getValidators = function(model, attr) {
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var attrValidationSet = model.validation ? model.validation[attr] || {} : {};
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// If the validator is a function or a string, wrap it in a function validator
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if (_.isFunction(attrValidationSet) || _.isString(attrValidationSet)) {
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attrValidationSet = {
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fn: attrValidationSet
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};
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}
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// Stick the validator object into an array
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if(!_.isArray(attrValidationSet)) {
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attrValidationSet = [attrValidationSet];
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}
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// Reduces the array of validators into a new array with objects
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// with a validation method to call, the value to validate against
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// and the specified error message, if any
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return _.reduce(attrValidationSet, function(memo, attrValidation) {
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_.each(_.without(_.keys(attrValidation), 'msg'), function(validator) {
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memo.push({
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fn: defaultValidators[validator],
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val: attrValidation[validator],
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msg: attrValidation.msg
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});
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});
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return memo;
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}, []);
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};
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// Validates an attribute against all validators defined
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// for that attribute. If one or more errors are found,
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// the first error message is returned.
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// If the attribute is valid, an empty string is returned.
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var validateAttr = function(model, attr, value, computed) {
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// Reduces the array of validators to an error message by
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// applying all the validators and returning the first error
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// message, if any.
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return _.reduce(getValidators(model, attr), function(memo, validator){
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// Pass the format functions plus the default
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// validators as the context to the validator
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var ctx = _.extend({}, formatFunctions, defaultValidators),
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result = validator.fn.call(ctx, value, attr, validator.val, model, computed);
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if(result === false || memo === false) {
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return false;
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}
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if (result && !memo) {
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return validator.msg || result;
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}
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return memo;
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}, '');
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};
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// Loops through the model's attributes and validates them all.
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// Returns and object containing names of invalid attributes
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// as well as error messages.
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var validateModel = function(model, attrs) {
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var error,
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invalidAttrs = {},
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isValid = true,
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computed = _.clone(attrs),
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flattened = flatten(attrs);
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_.each(flattened, function(val, attr) {
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error = validateAttr(model, attr, val, computed);
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if (error) {
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invalidAttrs[attr] = error;
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isValid = false;
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}
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});
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return {
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invalidAttrs: invalidAttrs,
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isValid: isValid
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};
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};
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// Contains the methods that are mixed in on the model when binding
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var mixin = function(view, options) {
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return {
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// Check whether or not a value passes validation
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// without updating the model
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preValidate: function(attr, value) {
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return validateAttr(this, attr, value, _.extend({}, this.attributes));
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},
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// Check to see if an attribute, an array of attributes or the
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// entire model is valid. Passing true will force a validation
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// of the model.
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isValid: function(option) {
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var flattened = flatten(this.attributes);
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if(_.isString(option)){
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return !validateAttr(this, option, flattened[option], _.extend({}, this.attributes));
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}
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if(_.isArray(option)){
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return _.reduce(option, function(memo, attr) {
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return memo && !validateAttr(this, attr, flattened[attr], _.extend({}, this.attributes));
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}, true, this);
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}
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if(option === true) {
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this.validate();
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}
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return this.validation ? this._isValid : true;
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},
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// This is called by Backbone when it needs to perform validation.
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// You can call it manually without any parameters to validate the
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// entire model.
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validate: function(attrs, setOptions){
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var model = this,
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validateAll = !attrs,
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opt = _.extend({}, options, setOptions),
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validatedAttrs = getValidatedAttrs(model),
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allAttrs = _.extend({}, validatedAttrs, model.attributes, attrs),
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changedAttrs = flatten(attrs || allAttrs),
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result = validateModel(model, allAttrs);
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model._isValid = result.isValid;
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// After validation is performed, loop through all changed attributes
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// and call the valid callbacks so the view is updated.
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_.each(validatedAttrs, function(val, attr){
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var invalid = result.invalidAttrs.hasOwnProperty(attr);
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if(!invalid){
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opt.valid(view, attr, opt.selector);
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}
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});
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// After validation is performed, loop through all changed attributes
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// and call the invalid callback so the view is updated.
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_.each(validatedAttrs, function(val, attr){
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var invalid = result.invalidAttrs.hasOwnProperty(attr),
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changed = changedAttrs.hasOwnProperty(attr);
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if(invalid && (changed || validateAll)){
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opt.invalid(view, attr, result.invalidAttrs[attr], opt.selector);
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}
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});
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// Trigger validated events.
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// Need to defer this so the model is actually updated before
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// the event is triggered.
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_.defer(function() {
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model.trigger('validated', model._isValid, model, result.invalidAttrs);
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model.trigger('validated:' + (model._isValid ? 'valid' : 'invalid'), model, result.invalidAttrs);
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});
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// Return any error messages to Backbone, unless the forceUpdate flag is set.
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// Then we do not return anything and fools Backbone to believe the validation was
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// a success. That way Backbone will update the model regardless.
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if (!opt.forceUpdate && _.intersection(_.keys(result.invalidAttrs), _.keys(changedAttrs)).length > 0) {
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return result.invalidAttrs;
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}
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}
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};
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};
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// Helper to mix in validation on a model
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var bindModel = function(view, model, options) {
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_.extend(model, mixin(view, options));
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};
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// Removes the methods added to a model
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var unbindModel = function(model) {
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delete model.validate;
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delete model.preValidate;
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delete model.isValid;
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};
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// Mix in validation on a model whenever a model is
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// added to a collection
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var collectionAdd = function(model) {
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bindModel(this.view, model, this.options);
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};
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// Remove validation from a model whenever a model is
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// removed from a collection
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var collectionRemove = function(model) {
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unbindModel(model);
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};
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// Returns the public methods on Backbone.Validation
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return {
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// Current version of the library
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version: '0.8.1',
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// Called to configure the default options
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configure: function(options) {
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_.extend(defaultOptions, options);
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},
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// Hooks up validation on a view with a model
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// or collection
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bind: function(view, options) {
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var model = view.model,
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collection = view.collection;
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options = _.extend({}, defaultOptions, defaultCallbacks, options);
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if(typeof model === 'undefined' && typeof collection === 'undefined'){
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throw 'Before you execute the binding your view must have a model or a collection.\n' +
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'See http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.';
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}
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if(model) {
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bindModel(view, model, options);
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}
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else if(collection) {
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collection.each(function(model){
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bindModel(view, model, options);
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});
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collection.bind('add', collectionAdd, {view: view, options: options});
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collection.bind('remove', collectionRemove);
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}
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},
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// Removes validation from a view with a model
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// or collection
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unbind: function(view) {
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var model = view.model,
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collection = view.collection;
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if(model) {
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unbindModel(view.model);
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}
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if(collection) {
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collection.each(function(model){
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unbindModel(model);
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});
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collection.unbind('add', collectionAdd);
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collection.unbind('remove', collectionRemove);
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}
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},
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// Used to extend the Backbone.Model.prototype
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// with validation
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mixin: mixin(null, defaultOptions)
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};
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}());
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// Callbacks
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// ---------
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var defaultCallbacks = Validation.callbacks = {
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// Gets called when a previously invalid field in the
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// view becomes valid. Removes any error message.
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// Should be overridden with custom functionality.
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valid: function(view, attr, selector) {
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view.$('[' + selector + '~="' + attr + '"]')
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.removeClass('invalid')
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.removeAttr('data-error');
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},
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// Gets called when a field in the view becomes invalid.
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// Adds a error message.
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// Should be overridden with custom functionality.
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invalid: function(view, attr, error, selector) {
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view.$('[' + selector + '~="' + attr + '"]')
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.addClass('invalid')
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.attr('data-error', error);
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}
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};
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// Patterns
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// --------
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var defaultPatterns = Validation.patterns = {
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// Matches any digit(s) (i.e. 0-9)
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digits: /^\d+$/,
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// Matched any number (e.g. 100.000)
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number: /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,
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// Matches a valid email address (e.g. mail@example.com)
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email: /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,
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// Mathes any valid url (e.g. http://www.xample.com)
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url: /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
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};
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// Error messages
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// --------------
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// Error message for the build in validators.
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// {x} gets swapped out with arguments form the validator.
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var defaultMessages = Validation.messages = {
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required: '{0} is required',
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acceptance: '{0} must be accepted',
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min: '{0} must be greater than or equal to {1}',
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max: '{0} must be less than or equal to {1}',
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range: '{0} must be between {1} and {2}',
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length: '{0} must be {1} characters',
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minLength: '{0} must be at least {1} characters',
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maxLength: '{0} must be at most {1} characters',
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rangeLength: '{0} must be between {1} and {2} characters',
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oneOf: '{0} must be one of: {1}',
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equalTo: '{0} must be the same as {1}',
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pattern: '{0} must be a valid {1}'
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};
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// Label formatters
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// ----------------
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// Label formatters are used to convert the attribute name
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// to a more human friendly label when using the built in
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// error messages.
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// Configure which one to use with a call to
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//
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// Backbone.Validation.configure({
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// labelFormatter: 'label'
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// });
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var defaultLabelFormatters = Validation.labelFormatters = {
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// Returns the attribute name with applying any formatting
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none: function(attrName) {
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return attrName;
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},
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// Converts attributeName or attribute_name to Attribute name
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sentenceCase: function(attrName) {
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return attrName.replace(/(?:^\w|[A-Z]|\b\w)/g, function(match, index) {
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return index === 0 ? match.toUpperCase() : ' ' + match.toLowerCase();
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}).replace(/_/g, ' ');
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},
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// Looks for a label configured on the model and returns it
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//
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// var Model = Backbone.Model.extend({
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// validation: {
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// someAttribute: {
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// required: true
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// }
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// },
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//
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// labels: {
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// someAttribute: 'Custom label'
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// }
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// });
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label: function(attrName, model) {
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return (model.labels && model.labels[attrName]) || defaultLabelFormatters.sentenceCase(attrName, model);
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}
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};
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// Built in validators
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// -------------------
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var defaultValidators = Validation.validators = (function(){
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// Use native trim when defined
|
|
var trim = String.prototype.trim ?
|
|
function(text) {
|
|
return text === null ? '' : String.prototype.trim.call(text);
|
|
} :
|
|
function(text) {
|
|
var trimLeft = /^\s+/,
|
|
trimRight = /\s+$/;
|
|
|
|
return text === null ? '' : text.toString().replace(trimLeft, '').replace(trimRight, '');
|
|
};
|
|
|
|
// Determines whether or not a value is a number
|
|
var isNumber = function(value){
|
|
return _.isNumber(value) || (_.isString(value) && value.match(defaultPatterns.number));
|
|
};
|
|
|
|
// Determines whether or not a value is empty
|
|
var hasValue = function(value) {
|
|
return !(_.isNull(value) || _.isUndefined(value) || (_.isString(value) && trim(value) === '') || (_.isArray(value) && _.isEmpty(value)));
|
|
};
|
|
|
|
return {
|
|
// Function validator
|
|
// Lets you implement a custom function used for validation
|
|
fn: function(value, attr, fn, model, computed) {
|
|
if(_.isString(fn)){
|
|
fn = model[fn];
|
|
}
|
|
return fn.call(model, value, attr, computed);
|
|
},
|
|
|
|
// Required validator
|
|
// Validates if the attribute is required or not
|
|
required: function(value, attr, required, model, computed) {
|
|
var isRequired = _.isFunction(required) ? required.call(model, value, attr, computed) : required;
|
|
if(!isRequired && !hasValue(value)) {
|
|
return false; // overrides all other validators
|
|
}
|
|
if (isRequired && !hasValue(value)) {
|
|
return this.format(defaultMessages.required, this.formatLabel(attr, model));
|
|
}
|
|
},
|
|
|
|
// Acceptance validator
|
|
// Validates that something has to be accepted, e.g. terms of use
|
|
// `true` or 'true' are valid
|
|
acceptance: function(value, attr, accept, model) {
|
|
if(value !== 'true' && (!_.isBoolean(value) || value === false)) {
|
|
return this.format(defaultMessages.acceptance, this.formatLabel(attr, model));
|
|
}
|
|
},
|
|
|
|
// Min validator
|
|
// Validates that the value has to be a number and equal to or greater than
|
|
// the min value specified
|
|
min: function(value, attr, minValue, model) {
|
|
if (!isNumber(value) || value < minValue) {
|
|
return this.format(defaultMessages.min, this.formatLabel(attr, model), minValue);
|
|
}
|
|
},
|
|
|
|
// Max validator
|
|
// Validates that the value has to be a number and equal to or less than
|
|
// the max value specified
|
|
max: function(value, attr, maxValue, model) {
|
|
if (!isNumber(value) || value > maxValue) {
|
|
return this.format(defaultMessages.max, this.formatLabel(attr, model), maxValue);
|
|
}
|
|
},
|
|
|
|
// Range validator
|
|
// Validates that the value has to be a number and equal to or between
|
|
// the two numbers specified
|
|
range: function(value, attr, range, model) {
|
|
if(!isNumber(value) || value < range[0] || value > range[1]) {
|
|
return this.format(defaultMessages.range, this.formatLabel(attr, model), range[0], range[1]);
|
|
}
|
|
},
|
|
|
|
// Length validator
|
|
// Validates that the value has to be a string with length equal to
|
|
// the length value specified
|
|
length: function(value, attr, length, model) {
|
|
if (!hasValue(value) || trim(value).length !== length) {
|
|
return this.format(defaultMessages.length, this.formatLabel(attr, model), length);
|
|
}
|
|
},
|
|
|
|
// Min length validator
|
|
// Validates that the value has to be a string with length equal to or greater than
|
|
// the min length value specified
|
|
minLength: function(value, attr, minLength, model) {
|
|
if (!hasValue(value) || trim(value).length < minLength) {
|
|
return this.format(defaultMessages.minLength, this.formatLabel(attr, model), minLength);
|
|
}
|
|
},
|
|
|
|
// Max length validator
|
|
// Validates that the value has to be a string with length equal to or less than
|
|
// the max length value specified
|
|
maxLength: function(value, attr, maxLength, model) {
|
|
if (!hasValue(value) || trim(value).length > maxLength) {
|
|
return this.format(defaultMessages.maxLength, this.formatLabel(attr, model), maxLength);
|
|
}
|
|
},
|
|
|
|
// Range length validator
|
|
// Validates that the value has to be a string and equal to or between
|
|
// the two numbers specified
|
|
rangeLength: function(value, attr, range, model) {
|
|
if(!hasValue(value) || trim(value).length < range[0] || trim(value).length > range[1]) {
|
|
return this.format(defaultMessages.rangeLength, this.formatLabel(attr, model), range[0], range[1]);
|
|
}
|
|
},
|
|
|
|
// One of validator
|
|
// Validates that the value has to be equal to one of the elements in
|
|
// the specified array. Case sensitive matching
|
|
oneOf: function(value, attr, values, model) {
|
|
if(!_.include(values, value)){
|
|
return this.format(defaultMessages.oneOf, this.formatLabel(attr, model), values.join(', '));
|
|
}
|
|
},
|
|
|
|
// Equal to validator
|
|
// Validates that the value has to be equal to the value of the attribute
|
|
// with the name specified
|
|
equalTo: function(value, attr, equalTo, model, computed) {
|
|
if(value !== computed[equalTo]) {
|
|
return this.format(defaultMessages.equalTo, this.formatLabel(attr, model), this.formatLabel(equalTo, model));
|
|
}
|
|
},
|
|
|
|
// Pattern validator
|
|
// Validates that the value has to match the pattern specified.
|
|
// Can be a regular expression or the name of one of the built in patterns
|
|
pattern: function(value, attr, pattern, model) {
|
|
if (!hasValue(value) || !value.toString().match(defaultPatterns[pattern] || pattern)) {
|
|
return this.format(defaultMessages.pattern, this.formatLabel(attr, model), pattern);
|
|
}
|
|
}
|
|
};
|
|
}());
|
|
|
|
return Validation;
|
|
}(_)); |