有人用过backbone-validation.js这个插件吗？

Question

var SomeModel = Backbone.Model.extend({
  validation: {
    email: {
      required: true,
      pattern: 'email',
      msg: 'Please enter a valid email'
    }
  },

  validate: function(attr){
    console.log(attr);
  }
});

var some = new SomeModel();
some.set('email', 'test', {validate: true});
console.log(some);

能帮忙写个例子出来吗？我按照说明写了个测试，不知道怎么取到错误信息呢？

Answer 1

找到DEMO了，谢谢

// Extend the callbacks to work with Bootstrap, as used in this example
// See: http://thedersen.com/projects/backbone-validation/#configuration/callbacks
_.extend(Backbone.Validation.callbacks, {
    valid: function (view, attr, selector) {
        var $el = view.$('[name=' + attr + ']'), 
            $group = $el.closest('.form-group');
        
        $group.removeClass('has-error');
        $group.find('.help-block').html('').addClass('hidden');
    },
    invalid: function (view, attr, error, selector) {
        var $el = view.$('[name=' + attr + ']'), 
            $group = $el.closest('.form-group');
        
        $group.addClass('has-error');
        $group.find('.help-block').html(error).removeClass('hidden');
    }
});

// Define a model with some validation rules
var SignUpModel = Backbone.Model.extend({
    defaults: {
        terms: false,
        gender: ''
    },
    validation: {
        username: {
            required: true
        },
        email: {
            required: true,
            pattern: 'email'
        },
        password: {
            minLength: 8
        },
        repeatPassword: {
            equalTo: 'password',
            msg: 'The passwords does not match'
        },
        country: {
          oneOf: ['Norway', 'Sweeden']
        },
        gender: {
            required: true
        },
        age: {
            required: false,
            range: [18, 100]
        },
        terms: {
            acceptance: true
        }
    }
});

// Define a View that uses our model
var SignUpForm = Backbone.View.extend({
    el: 'form',

    events: {
        'click #signUpButton': function (e) {
            e.preventDefault();
            this.signUp();
        }
    },

    initialize: function () {
        this.model = new SignUpModel();
        // This hooks up the validation
        // See: http://thedersen.com/projects/backbone-validation/#using-form-model-validation/validation-binding
        Backbone.Validation.bind(this);
    },

    signUp: function () {
        var data = this.$el.serializeObject();

        this.model.set(data);
            
        this.model.isValid(true);
        // Check if the model is valid before saving
        // See: http://thedersen.com/projects/backbone-validation/#methods/isvalid
        // if(this.model.isValid(true)){
        //     // this.model.save();
        //     alert('Great Success!');
        // }
    },
    
    remove: function() {
        // Remove the validation binding
        // See: http://thedersen.com/projects/backbone-validation/#using-form-model-validation/unbinding
        Backbone.Validation.unbind(this);
        return Backbone.View.prototype.remove.apply(this, arguments);
    }
});

$(function () {
    var view = new SignUpForm();
});

// https://github.com/hongymagic/jQuery.serializeObject
$.fn.serializeObject = function () {
    "use strict";
    var a = {}, b = function (b, c) {
        var d = a[c.name];
        "undefined" != typeof d && d !== null ? $.isArray(d) ? d.push(c.value) : a[c.name] = [d, c.value] : a[c.name] = c.value
    };
    return $.each(this.serializeArray(), b), a
};