Hot Towel Angular-Breeze课程-获取breezeProvider错误

Question

我正在遵循John Papa课程“使用Angular和Breeze构建应用程序-第1部分”中的所有步骤，一旦完成了标题为“开始播放第一个剪辑并通过您的应用程序创建垂直切片”的模块，我便开始遇到breezeProvider错误 。

请在下面找到错误图片以及datacontext。 js代码。

您的建议将不胜感激。

                  -------------------------------------------

在F12开发人员工具中，控制台错误为：

未捕获的错误：找不到微风localhost：1772 / Scripts / breeze.angular.js：90 [shell] Hot Towel Angular已加载！ 空值

错误：[$ injector：unpr]未知提供程序：breezeProvider <-微风< -entityManagerFactory < -datacontext

[app] [CC错误] [$ injector：unpr]未知提供程序：breezeProvider <-微风<-EntityManagerFactory <-datacontext

这是我的datacontext.js代码：

(function () {
 'use strict';

var serviceId = 'datacontext';
angular.module('app').factory(serviceId, ['common', 'entityManagerFactory', datacontext]);

function datacontext(common, emFactory) {   // emFactory param refers to 'entityManagerFactory'
    var EntityQuery = breeze.EntityQuery;
    var getLogFn = common.logger.getLogFn;  
    var log = getLogFn(serviceId);          // see common\logger.js
    var logError = getLogFn(serviceId, 'error');
    var logSuccess = getLogFn(serviceId, 'success');
    var manager = emFactory.newManager();           // COMES FROM entityManagerFactory.js
    var $q = common.$q;

    var service = {
        getPeople: getPeople,
        getMessageCount: getMessageCount,
        getSessionPartials: getSessionPartials
    };

    return service;

    function getMessageCount() { return $q.when(72); }

    function getPeople() {
        var people = [
            { firstName: 'John', lastName: 'Papa', age: 25, location: 'Florida' },
            { firstName: 'Ward', lastName: 'Bell', age: 31, location: 'California' },
            { firstName: 'Colleen', lastName: 'Jones', age: 21, location: 'New York' },
            { firstName: 'Madelyn', lastName: 'Green', age: 18, location: 'North Dakota' },
            { firstName: 'Ella', lastName: 'Jobs', age: 18, location: 'South Dakota' },
            { firstName: 'Landon', lastName: 'Gates', age: 11, location: 'South Carolina' },
            { firstName: 'Haley', lastName: 'Guthrie', age: 35, location: 'Wyoming' }
        ];
        return $q.when(people);
    }

    function getSessionPartials() {            
        var orderBy = 'timeSlotId, level, speaker.firstName';
        var sessions;

        // use Breeze to get data from back end; see datacontext() function above for init code.
        return EntityQuery.from('Sessions')
            .select('id, title, code, speakerId, trackId, timeSlotId, roomId, level, tags')
            .orderBy(orderBy)
            .toType('Session')              // cast to type 'Session' (in CC.Model project)
            .using(manager).execute()       //  communicate to back end
            .then(querySucceeded, _queryFailed);
            //.to$q(querySucceeded, _queryFailed);   // OLD WAY: converts promise to Ang.

        function querySucceeded(data) {
            session = data.results;
            log('Retrieved Session Partials from remote data source', sessions.length, true);
            return sessions;
        }
        function _queryFailed(error) {  // PASSED IN BY BREEZE
            var msg = config.appErrorPrefix + 'Error retrieving data.' + error.message;  
            logError(msg, error);
            throw error;
        }
    }
 }

})();

Answer 1

真正的问题是第一个错误： Can't find breeze 。 看到breeze.angular.js是吠叫的文件...

确保在index.html添加了微风JS文件：

<script src="scripts/breeze.debug.js"></script> // or breeze.min.js
<script src="scripts/breeze.angular.js"></script>

如果您已经添加了它，请确保它breeze.angular.js如上面所示的breeze.angular.js之前。

---

这些是我在应用程序中拥有的breeze JS参考：

<!-- #region Breeze -->
<script src="scripts/breeze.debug.js"></script>
<script src="scripts/breeze.angular.js"></script>
<script src="scripts/breeze.directives.js"></script>
<script src="scripts/breeze.saveErrorExtensions.js"></script>
<!-- #endregion -->

Answer 2

确保在模块定义中包括将微风服务作为依赖项包括在内：

var app = angular.module('app', [
    'ngAnimate',        
    'ngRoute',          
    'ngSanitize',       

    'breeze.angular',   // THIS IS THE MISSING DEPENDENCY

    'common',           
    'common.bootstrap', 

    'ui.bootstrap'      
]);

并确保您包括以下文件：

<script src="Scripts/breeze.debug.js"></script>
<script src="Scripts/breeze.bridge.angular.js"></script>
<script src="Scripts/breeze.directives.js"></script>
<script src="Scripts/breeze.saveErrorExtensions.js"></script>