使用ocLazyLoad延迟加载ngTable

Question

在我们的一个项目中，我们试图围绕ngTable库编写一个包装器！在此组件的控制器中，我们使用ngTable重新加载ocLazyLoad。 这是我们写的：

Datagrid组件

(function() {

  'use strict';

  angular
    .module('CommonApplication')
    .component('datagrid', {
      scope: true,
      bindings: {
        basepath: '@',
        title: '@',
        dataset: '<'
      },
      templateUrl: '/frontend/components/global/datagrid/templates/datagrid.html',
      controller: 'DataGridController',
    });

})();

带有$ ocLazyLoad的Datagrid控制器（不能工作：〜|）

(function() {

  'use strict';

  angular
    .module('CommonApplication')
    .controller('DataGridController', 
    [ '$scope', '$injector', '$ocLazyLoad', DataGridController ]);

  function DataGridController($scope, $injector, $ocLazyLoad) {

    var vm = this;
    var components = {
      datagrid: [
        'https://unpkg.com/ng-table@2.2.0/bundles/ng-table.min.css',
        'https://unpkg.com/ng-table@2.2.0/bundles/ng-table.min.js'
      ]
    };

    $ocLazyLoad.load(components.datagrid).then(function() {
      var NgTableParams = $injector.get('NgTableParams');
      vm.data = [{name: "Moroni", age: 50},{name: "Moroni", age: 50},{name: "Moroni", age: 50},{name: "Moroni", age: 50}];
      vm.tableParams = new NgTableParams({
        page: 1,
        count: 10
      }, {
        dataset: vm.data
      });
    });
  }

})();

没有$ ocLazyLoad（Works）的Datagrid控制器

(function() {

  'use strict';

  angular
    .module('CommonApplication')
    .controller('DataGridController', 
    [ '$scope', '$injector', '$ocLazyLoad', DataGridController ]);

  function DataGridController($scope, $injector, $ocLazyLoad) {

    var vm = this;
    var components = {
      datagrid: [
        'https://unpkg.com/ng-table@2.2.0/bundles/ng-table.min.css',
        'https://unpkg.com/ng-table@2.2.0/bundles/ng-table.min.js'
      ]
    };

    var NgTableParams = $injector.get('NgTableParams');
    vm.data = [{name: "Moroni", age: 50},{name: "Moroni", age: 50},{name: "Moroni", age: 50},{name: "Moroni", age: 50}];
    vm.tableParams = new NgTableParams({
      page: 1,
      count: 10
    }, {
      dataset: vm.data
    });
  }

})();

使用ocLazyLoad，如果我在vm.tableParams填充new NgTableParams的行时设置了一个断点，那么它的设置和其他属性在arguments中有这个特殊错误{1}}属性。

这里是异常错误，它指向$ocLazyLoad.then函数回调的结束！它是datagrid.js:47:7因为我们将这些js文件和另一个文件连接到datagrid.js：

TypeError: 'caller' and 'arguments' are restricted function properties and cannot be accessed in this context.
    at Function.remoteFunction (<anonymous>:3:14)
    at http://localhost:8081/frontend/components/global/datagrid/datagrid.js:47:7
    at http://localhost:8081/frontend/javascripts/head.min.js:136:20
    at m.$eval (http://localhost:8081/frontend/javascripts/head.min.js:150:347)
    at m.$digest (http://localhost:8081/frontend/javascripts/head.min.js:147:420)
    at http://localhost:8081/frontend/javascripts/head.min.js:150:434
    at e (http://localhost:8081/frontend/javascripts/head.min.js:50:444)
    at http://localhost:8081/frontend/javascripts/head.min.js:53:300

对此有何想法？！

Answer 1

显然，即使使用其承诺.then(callback)，延迟加载也不会使Angular等待其完成！

我正在做的是在加载ngTableParams时使用ng-table初始化表格！考虑到这一点，我决定使用一个简单的技巧！

我将ngTableParams附加到名为vm.tableParams的Scope变量中，稍后我将使用ng-table指令将其初始化为视图中的表。因此，即使在调用尚未加载的指令之前，我们仍然使用ng-if和tableParams检查延迟加载是否已完成：

查看： datagrid.pug

// Load Directive if Params in the controller were attached to the scope!
.row.expanded(ng-if="table.tableParams")
    .small-12.columns 
      table.data-table.hover.stacktable.table-condensed.table-bordered.table-striped(ng-table-dynamic="table.tableParams with table.headers",template-pagination="custom/pager", show-filter="true")
        tr(ng-repeat="(rowIndex, row) in $data ")
          td(ng-repeat="column in $columns", ng-switch="column.field")
            input.selectSwitch( ng-switch-when="selector", type="checkbox", ng-model="table.checkboxes.items[row.id]") 
            div(ng-switch-when="id") {{ rowIndex + 1 }}
            div(ng-switch-when="body") {{ row }}
            span(ng-switch-default) {{row[column.field]}}

控制器： datagrid.controller.js

// Lazyload datagrid components and Initialize headers and parametres!
    $ocLazyLoad.load(components.datagrid).then(function (){
      self.headers = self.dataset.headers;
      self.dataset.headers.forEach(function( header ) {
        header.title = header.headerTitle;
      });
      var NgTableParams = $injector.get('NgTableParams');
      self.tableParams = new NgTableParams({
        count: 5
      }, {
        dataset: self.dataset.data
      });
    });

这样我们就不会手动使用$compile来重新渲染视图，我们让angular处理编译本身，而不影响性能：）