如何使用表单更新现有的 JS 对象 - Angular JS答案

【问题标题】：How to update existing JS Object using forms - Angular JS如何使用表单更新现有的 JS 对象 - Angular JS
【发布时间】：2016-06-22 06:11:50
【问题描述】：

我正在将我现有的项目转换为 angularJs，并且有一个 JS 对象我会在表单提交时保持更新。

autoquoteDTO.js：

$.getAutoQuoteObject = function() {
  var autoQuoteObject = new autoQuote();
  autoQuoteObject.DriverVehicleInfo = new DriverVehicleInfo();
  autoQuoteObject.DriverVehicleInfo.Vehicles = [];
  autoQuoteObject.DriverVehicleInfo.Drivers = [];
  autoQuoteObject.ApplicationInfo = new ApplicationInfo();
  autoQuoteObject.ApplicationInfo.Discount = new Discount();
  autoQuoteObject.ApplicationInfo.GeneralPartyInfo = new GeneralPartyInfo();
  autoQuoteObject.ApplicationInfo.GeneralPartyInfo.ContactInfo = new Contact();
  autoQuoteObject.ApplicationInfo.MostRecentInsurance = new MostRecentInsurance();
  autoQuoteObject.RequestedCoverage = new RequestedCoverage();
  autoQuoteObject.RequestedCoverage.PolicyCoverage = new PolicyCoverage();
  autoQuoteObject.RequestedCoverage.PolicyCoverage.Coverages = [];
  autoQuoteObject.RequestedCoverage.VehicleCoverage = [];
  autoQuoteObject.SessionInfo = new SessionInfo();
  return autoQuoteObject;
}

function autoQuote() {
  this.DriverVehicleInfo = null;
  this.ApplicationInfo = null;
  this.RequestedCoverage = null;
  this.SessionInfo = null;
}
var DriverVehicleInfo = function() {
  this.Drivers = [];
  this.Vehicles = [];
  this.DriverVehicleUsages = [];
};
var Driver = function() {
  this.ID = null, this.PersonInfo = null, this.DriverRelationshipToApplicant = null, this.DriverRelationshipToApplicantCd = null, this.DriverLicense = null, this.DriverDetails = [], this.Incident = null, this.IsValid = false
};
var PersonInfo = function() {
  this.FirstName = null, this.Initial = null, this.LastName = null, this.Suffix = null, this.SSN = null, this.GenderCd = null, this.BirthDate = null, this.MaritalStatusCd = null, this.OccupationClassCd = null, this.YearsOccupation = null, this.HighestEducation = null, this.AgeInYears = 0, this.SpouseLicenseStatus = null
};
var DriverLicense = function() {
  this.AgeLicense = null, this.USLicenseStatus = null, this.DriverLicenseNumber = null, this.StateProvCd = null
};
var DriverDetail = function() {
  this.DriverDetailCd = null, this.DriverDetailValue = null, this.DriverDetailDate = null
};
var Incident = function() {
  this.ClaimAccidentsCount = null, this.ViolationsCount = null, this.HasLicenseBeenRevoked = null, this.LicenseSuspensionRevokedDate = null, this.HasRequiredCourtOrderedFinancial = null, this.ClaimAccidents = [], this.Violations = [], this.DUIs = []
};
var DUI = function() {
  this.DateOfDUI = null, this.OtherValues = []
};
var ClaimAccident = function() {
  this.Id = null, this.ClaimAccidentCd = null, this.displayText = null, this.ClaimAccidentDate = null, this.DateDisplayText = null, this.Comprehensive = null, this.Collision = null, this.RentalReimbursement = null, this.MedicalPayment = null, this.PayToOtherParty = null, this.IsInjury = null, this.IsPropertyDamage = null
};
var Violation = function() {
  this.Id = null, this.ViolationCd = null, this.ViolationDate = null, this.displayText = null
};
var Vehicle = function() {
  this.ID = null, this.VehicleHaveVin = false, this.VehicleIdentificationNumber = null, this.VehicleYear = null, this.VehicleMake = null, this.VehicleModel = null, this.VehicleSubModel = null, this.AntiLockBrakeCd = null, this.AntiTheftDeviceCd = null, this.VehicleUseCd = null, this.NumDaysDrivenPerWeek = null, this.DistanceOneWay = null, this.EstimatedAnnualDistance = null, this.OwnershipCd = null, this.RegistrationStateProvCd = null, this.VehIdentificationNumber = null, this.IsCustomizedOrAltered = null, this.OriginalVehicleCost = null, this.IsValid = false, this.VehicleType = null, this.VehicleVinStub = null, this.ShowVehicleAntiLockBrakeInfo = false, this.VehicleCost = null, this.ShowVehicleCost = false, this.DaytimeLights = null
};
var DriverVehicleUsage = function() {
  this.DriverIDRef = null, this.VehicleIDRef = null, this.Usage = null
};
var ApplicationInfo = function() {
  this.GeneralPartyInfo = null, this.Discount = null, this.MostRecentInsurance = null, this.ConsumerContactAuth = null, this.ConsumerInfoAuthorization = null, this.ConsumerContactMobileAuth = null
};
var GeneralPartyInfo = function() {
  this.MainApplicantDriverIDRef = null, this.Address = null, this.PreviousAddress = null, this.ContactInfo = null, this.ResidenceInfo = null, this.ListedVehiclesRegisteredTo = null, this.CreditScore = 0
};
var AddressInfo = function() {
  this.Address = null, this.City = null, this.State = null, this.PostalCode = null, this.County = null
};
var PreviousAddress = function() {
  this.Address = null, this.City = null, this.State = null, this.PostalCode = null, this.County = null
};
var Contact = function() {
  this.Phones = [], this.Emails = []
};
var Email = function() {
  this.EmailTypeCd = null, this.EmailAddress = null
};
var Phone = function() {
  this.PhoneTypeCd = null, this.PhoneNumber = null
};
var Residence = function() {
  this.LengthAtCurrentAddressCd = null, this.ResidenceTypeCd = null, this.NumberDriversInHouseHold = null, this.VehiclesRegistedToInsured = null, this.DriverResidentsFromFL = null, this.CityLimits = null
};
var Discount = function() {
  this.ResidentialInsurancePolicy = null, this.OwnBoat = null, this.OwnMotorCycle = null, this.IsAAAMember = null
};
var MostRecentInsurance = function() {
  this.HasAutoInsurance = null, this.InsuranceCompanyName = null, this.CurrentInsurancePaying = null, this.LengthWithCurrentInsuranceCd = null, this.BodilyInjuryLiabilityLimit = null, this.LengthContinuouslyInsuredCd = null, this.ExpirationDate = null, this.InsuranceCanceledForNonPay = null, this.ClaimDeniedDueToFraud = null
};
var RequestedCoverage = function() {
  this.EffectiveDate = null, this.StateCd = null, this.PolicyCoverage = null, this.VehiclesCoverage = []
};
var PolicyCoverage = function() {
  this.Coverages = []
};
var Coverage = function() {
  this.CoverageCd = null, this.CoverageValue = null
};
var VehicleCoverage = function() {
  this.IsValid = false, this.VehicleIDRef = null, this.Coverages = []
};
var SessionInfo = function() {
  this.SessionId = '', this.SecurityToken = '', this.Zip = '', this.StateCode = '', this.PageName = '', this.PageTheme = '', this.CarrierId = -1, this.ReturnedCarrierTypes = null, this.CoveragePackage = '', this.UseExistingSession = false, this.QuoteStatus = '', this.SID = -1, this.SRC = null, this.SRC_QCP = null, this.Referral = null, this.ClientIP = null, this.BrowserType = null, this.CLK = 0, this.QTR = '', this.CCID = '', this.AFF = '', this.PreviousSessionId = '', this.IgnoreErrors = false, this.RetrieveSource = '', this.PreviousPageName = ''
}

prapareJson.js：

var prepareAutoQuoteDTO = {
    postAutoQuoteObj: $.getAutoQuoteObject(),  
    initializeDriverObj: function()
    {
        var driverLocObj           = new Driver();
        driverLocObj.PersonInfo    = new PersonInfo();
        driverLocObj.DriverLicense = new DriverLicense();
        driverLocObj.Incident      = new Incident();
        return driverLocObj;
    },

    initializeAppInfo: function()
    {
        var appInfoLocObj           = new ApplicationInfo();
        appInfoLocObj.Discount      = new Discount();
        return appInfoLocObj;

    },
    /*
    * Initialize Vehicle object for autoQuoteDTO.js
    */
    initializeVehicleObj: function()
    {
        var vehicleLocObj = new Vehicle();
        return vehicleLocObj;
    },

    rc1Step1DTO: function()
    {
       /*
        * store session info
        */
        var emailId = $('#save_quote_email').val();
        if (typeof emailId  !== "undefined" && emailId && emailId != '' && emailId != 'Email Address')
        {
            var email           = new Email();
            email.EmailTypeCd   = 'PRIMARY';
            email.EmailAddress  = emailId;
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo = this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo || new Contact();
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails = [];
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails.push(email);
        }
};

在用户事件代码上更新 json：

prepareAutoQuoteDTO.rc1Step1DTO();

应该更新 JS 对象的新 Angular JS 代码：

 (function(){
    "use strict";
    angular
    .model("autoQuote")
    .controller("prepareDTO","prepareDTO")
    .controller("postDTO","postDTO");
        /*
         * Call actions on page load
         */
    var init = function () {
                 prepareDTO();    
        }
        init();

        /*
         * prepare DTO with form elements.
         */
        function prepareDTO()
    {
         var vm = this;
         vm.postAutoQuoteObj = [];   
    }

        /*
         * post DTO on form submit and page onload.
         */
        function postDTO()
        {

        }     

 });

表单逻辑应包含在prepareDTO 函数中。

预期的行为是如果 step1 表单被提交，那么应该调用 rc1Step1DTO 并且应该保存 JS 数据。

寻找实现这一目标的建议和最佳实践。

我的完整代码的 Plunker 是 http://plnkr.co/edit/VJKrDRMJY3Q73bsCgVwX?p=preview。

我可以删除/编辑这个文件和 Angular JS 中的所有内容，但在 AngularJS 中无法做到这一点。

【问题讨论】：

没有足够的信息，你想做什么：以角度方式创建一个表单并在提交时将数据发布到你的服务器？如果是这样，您应该在网上检查“angularjs form sample”，这样的问题不适合 SO。
我添加了一个 json，我在其中添加了有关 ui onload 或表单提交的信息。我只想知道如何在 angualr js 中使用这样的 json。我想在 autoQuote 模型中添加 prepareAutoQuoteDTO。
你误解了 JSON 和 Javascript 对象，JSON 是一种序列化格式，它是一个特定格式的巨大字符串，用于不同程序之间交换信息。您在这里拥有的只是普通的 Javascript 对象，如果您将对象传递到 $htt.post，angularJS 会自动将它们转换为 JSON。这种情况经常发生，因为声明多级对象时的 Javascript 语法与 JSON 格式完全相同。
在这里我添加了 prapareJson.js 文件，我在其中维护 json 数据。我如何在 Angular js 中创建 sam
正如我所说，它不是 JSON，您实例化了 Javascript 对象。所以在角度上是完全一样的。

标签： javascript jquery angularjs html

【解决方案1】：

您可以将所有代码移入工厂，然后将其注入控制器。所有其他依赖项（如Driver）必须在此执行之前包含在内，甚至可以在prepareDtoFactory 函数中声明。

angular
.model("autoQuote")
.controller(dtoController)
.factory(prepareDtoFactory);

function dtoController(prepareDtoFactory){
     prepareDtoFactory.rc1Step1DTO(); //call function from your service, and do something with it
}

dtoController.$inject = ['prepareDtoFactory'];

function prepareDtoFactory(){

    var prepareAutoQuoteDTO = {
        postAutoQuoteObj         : $.getAutoQuoteObject(),  
        initializeDriverObj: function(){
            var driverLocObj           = new Driver();
            driverLocObj.PersonInfo    = new PersonInfo();
            driverLocObj.DriverLicense = new DriverLicense();
            driverLocObj.Incident      = new Incident();
            return driverLocObj;
       },
       initializeAppInfo: function(){
           var appInfoLocObj           = new ApplicationInfo();
           appInfoLocObj.Discount      = new Discount();
           return appInfoLocObj;
       },
       /*
       * Initialize Vehicle object for autoQuoteDTO.js
       */
       initializeVehicleObj: function(){
           var vehicleLocObj = new Vehicle();
           return vehicleLocObj;
       },
       /*
       * store session info
       */
       rc1Step1DTO: function(){

            var emailId = $('#save_quote_email').val();
            if (typeof emailId  !== "undefined" && emailId && emailId != '' && emailId != 'Email Address'){
                var email           = new Email();
                email.EmailTypeCd   = 'PRIMARY';
                email.EmailAddress  = emailId;
                this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo =     this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo || new Contact();
                this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails = [];
                this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails.push(email);
            }
        }
    };
    return prepareAutoQuoteDTO;
}

【讨论】：

这是非常有用的建议。在第 1 步和第 2 步中，我有输入表单。当我提交此表单时，我想调用 dtoController 并将此数据发送到服务器（api）进行保存。如何调用该函数并向服务器发送数据。
完整代码可以看这里plnkr.co/edit/VJKrDRMJY3Q73bsCgVwX?p=preview
包含您的代码时出现错误。错误 [$injector:pget] Provider 'function prepareDtoFactory()' must define $get factory method.

【解决方案2】：

关注 AJS guide:

HTML

<div ng-controller="prepareDTO as pdt">
  <form novalidate class="simple-form">
    E-mail: <input type="email" ng-model="pdt.user.email" /><br />
    <input type="button" ng-click="pdt.reset()" value="Reset" />
    <input type="submit" ng-click="pdt.update(user)" value="Save" />
  </form>
  <pre>user = {{user | json}}</pre>

</div>

app.js

function prepareDTO()
    {
         var vm = this;

         vm.user = {
           email: ''
         };

         vm.update = function(user){
           prepareAutoQuoteDTO.rc1Step1DTO(user.email);

         }
    }

请注意prepareAutoQuoteDTO.rc1Step1DTO为了避免错误应该修改为：

rc1Step1DTO: function(email)
    {
       /*
        * store session info
        */
        var emailId = email;
        if (typeof emailId  !== "undefined" && emailId && emailId != '' && emailId != 'Email Address')
        {
            var email           = new Email();
            email.EmailTypeCd   = 'PRIMARY';
            email.EmailAddress  = emailId;
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo = this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo || new Contact();
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails = [];
            this.postAutoQuoteObj.ApplicationInfo.GeneralPartyInfo.ContactInfo.Emails.push(email);
       }
}

【讨论】：