在 aikau 中多次调用 postCreate 方法答案

【问题标题】：postCreate method calling multiple times in aikau在 aikau 中多次调用 postCreate 方法
【发布时间】：2017-03-14 10:07:48
【问题描述】：

我们正在分面搜索屏幕 5.1+aikau(100.0.1) 的 Selected Items 菜单中添加一些自定义操作；

但是当我加载页面时，在自定义小部件中 postCreate 方法调用了两次，当我选择“编辑属性”时，onSelectedDocumentsAction 函数也调用了两次。

如果我在 selectedItemsActionsGroup 中再推一个额外的项目，那么它的调用次数（3 次）。

var selectedItemsActionsGroup = widgetUtils.findObject(model.jsonModel.widgets,"id", "SELECTED_ITEMS_ACTIONS_GROUP");


    selectedItemsActionsGroup.config.widgets.push(
                    {
                        id : "OnActionEditProperties",
                        name : "faceted-search/CustomBulkSelectItems/CustomBulkSelectItems",
                        config : {
                            label : "Edit",
                            iconImage : url.context
                                    + "/res/components/documentlibrary/actions/y-16.png",
                            type : "action-link",
                            permission : "",
                            asset : "",
                            href : "",
                            hasAspect : "",
                            notAspect : "",
                            publishTopic : "BULK_OPS",
                            publishPayload : {
                                action : "onActionEditProperties",
                            }
                        }
                    },
                    {
                        id : "OnActionManaged",
                        name : "faceted-search/CustomBulkSelectItems/CustomBulkSelectItems",
                        config : {
                            label : "Managed",
                            iconImage : url.context
                                    + "/res/components/documentlibrary/actions/x-16.png",
                            type : "action-link",
                            permission : "",
                            asset : "",
                            href : "",
                            hasAspect : "",
                            notAspect : "",
                            publishTopic : "BULK_OPS",
                            publishPayload : {
                                action : "OnActionManaged",
                            }
                        }
                    });

*****************
CustomBulkSelectItems.js
**********************

            define(["dojo/_base/declare",
        "alfresco/services/FormsRuntimeService",
        "alfresco/core/UrlUtilsMixin",
         "alfresco/enums/urlTypes",
        "alfresco/core/Core",
        "alfresco/menus/AlfFilteringMenuItem",
        "alfresco/documentlibrary/_AlfDocumentListTopicMixin",
        "alfresco/core/CoreXhr",
        "dojo/_base/lang",
        "dojo/dom-class",
        "dojo/_base/array",
        "service/constants/Default","alfresco/core/topics"], 
        function(declare,FormsRuntimeService, UrlUtilsMixin,urlTypes,AlfCore ,AlfFilteringMenuItem, _AlfDocumentListTopicMixin,AlfCoreXhr, lang, domClass, 
                array, AlfConstants,topics) {

   return declare([FormsRuntimeService,UrlUtilsMixin,AlfCore,AlfFilteringMenuItem,_AlfDocumentListTopicMixin,AlfCoreXhr], {


       i18nRequirements: [ {i18nFile: "./CustomBulkSeledtItems.properties"} ],


      postCreate: function alfresco_documentlibrary_CustomBulkSelectItems__postCreate() {
         console.log(" bulkops postCreate************.");
         this.alfSubscribe("BULK_OPS", lang.hitch(this, this.onSelectedDocumentsAction));
         this.inherited(arguments);
      } ,

      /**
       * This function handles requests to perform actions on the currently selected documents. It takes the 
       * provided payload and updates it with the 
       *
       * @instance
       * @param {object} payload The payload containing the details of the action being requested
       * @fires alfresco/core/topics#MULTIPLE_ITEM_ACTION_REQUEST
       */
      onSelectedDocumentsAction: function alfresco_documentlibrary_CustomBulkSelectItems__onSelectedDocumentsAction(payload) {  
 console.log(" bulkops onSelectedDocumentsAction************.");

}
});
});

【问题讨论】：

您在哪个文件中添加了var selectedItemsActionsGroup .... 代码？
自定义 faceted-search.get.js;
无法从 null 读取属性“小部件”。在 faceted-search.get.js（web-extension 文件夹）中添加您的代码后，我收到此错误。
您需要在自定义小部件的定义中添加“dijit/_WidgetBase”。
我在 faceted-search.get.js 文件中添加了上面的代码，但是没有显示动作。可以帮我显示动作吗？

标签： alfresco-share aikau

【解决方案1】：

我认为您在 get.js 文件中调用了两次相同的小部件faceted-search/CustomBulkSelectItems/CustomBulkSelectItems 和两次publishTopic。更改 get.js 中的小部件后，它对我来说很好。

分享你的想法。

我改变了你的类似下面的东西，输出是这样的。

var selectedItemsActionsGroup = widgetUtils.findObject(model.jsonModel.widgets,"id", "SELECTED_ITEMS_ACTIONS_GROUP");

selectedItemsActionsGroup.config.widgets.push(
                    {
                        id : "OnActionEditProperties",
                        name : "faceted-search/CustomBulkSelectItems/CustomBulkSelectItems",
                        config : {
                            label : "Edit",
                            iconImage : url.context
                                    + "/res/components/documentlibrary/actions/y-16.png",
                            type : "action-link",
                            permission : "",
                            asset : "",
                            href : "",
                            hasAspect : "",
                            notAspect : "",
                            publishTopic : "BULK_OPS",
                            publishPayload : {
                                action : "onActionEditProperties",
                            }
                        }
                    },
                    {
                        id : "OnActionManaged",
                        name : "faceted-search/CustomBulkSelectItems/CustomBulkSelect",
                        config : {
                            label : "Managed",
                            iconImage : url.context
                                    + "/res/components/documentlibrary/actions/x-16.png",
                            type : "action-link",
                            permission : "",
                            asset : "",
                            href : "",
                            hasAspect : "",
                            notAspect : "",
                            publishTopic : "BULK_OPS_1",
                            publishPayload : {
                                action : "OnActionManaged",
                            }
                        }
                    });

CustomBulkSelectItems.js

define(["dojo/_base/declare",
        "alfresco/services/FormsRuntimeService",
        "alfresco/core/UrlUtilsMixin",
         "alfresco/enums/urlTypes",
        "alfresco/core/Core",
        "alfresco/menus/AlfFilteringMenuItem",
        "alfresco/documentlibrary/_AlfDocumentListTopicMixin",
        "alfresco/core/CoreXhr",
        "dojo/_base/lang",
        "dojo/dom-class",
        "dojo/_base/array",
        "service/constants/Default","alfresco/core/topics"], 
        function(declare,FormsRuntimeService, UrlUtilsMixin,urlTypes,AlfCore ,AlfFilteringMenuItem, _AlfDocumentListTopicMixin,AlfCoreXhr, lang, domClass, 
                array, AlfConstants,topics) {

   return declare([FormsRuntimeService,UrlUtilsMixin,AlfCore,AlfFilteringMenuItem,_AlfDocumentListTopicMixin,AlfCoreXhr], {


       i18nRequirements: [ {i18nFile: "./CustomBulkSeledtItems.properties"} ],


      postCreate: function alfresco_documentlibrary_CustomBulkSelectItems__postCreate() {
         console.log(" bulkops postCreate************.");
         this.alfSubscribe("BULK_OPS", lang.hitch(this, this.onSelectedDocumentsAction));
         this.inherited(arguments);
      } ,

      /**
       * This function handles requests to perform actions on the currently selected documents. It takes the 
       * provided payload and updates it with the 
       *
       * @instance
       * @param {object} payload The payload containing the details of the action being requested
       * @fires alfresco/core/topics#MULTIPLE_ITEM_ACTION_REQUEST
       */
      onSelectedDocumentsAction: function alfresco_documentlibrary_CustomBulkSelectItems__onSelectedDocumentsAction(payload) {  
 console.log(" bulkops onSelectedDocumentsAction************.");

}
});
});

CustomBulkSelect.js

define(["dojo/_base/declare",
        "alfresco/services/FormsRuntimeService",
        "alfresco/core/UrlUtilsMixin",
         "alfresco/enums/urlTypes",
        "alfresco/core/Core",
        "alfresco/menus/AlfFilteringMenuItem",
        "alfresco/documentlibrary/_AlfDocumentListTopicMixin",
        "alfresco/core/CoreXhr",
        "dojo/_base/lang",
        "dojo/dom-class",
        "dojo/_base/array",
        "service/constants/Default","alfresco/core/topics"], 
        function(declare,FormsRuntimeService, UrlUtilsMixin,urlTypes,AlfCore ,AlfFilteringMenuItem, _AlfDocumentListTopicMixin,AlfCoreXhr, lang, domClass, 
                array, AlfConstants,topics) {

   return declare([FormsRuntimeService,UrlUtilsMixin,AlfCore,AlfFilteringMenuItem,_AlfDocumentListTopicMixin,AlfCoreXhr], {


       i18nRequirements: [ {i18nFile: "./CustomBulkSeledtItems.properties"} ],


      postCreate: function alfresco_documentlibrary_CustomBulkSelectItems__postCreate() {
         console.log(" CustomBulkSeledt bulkops postCreate************.");
         this.alfSubscribe("BULK_OPS_1", lang.hitch(this, this.onSelectedDocumentsAction));
         this.inherited(arguments);
      } ,

      /**
       * This function handles requests to perform actions on the currently selected documents. It takes the 
       * provided payload and updates it with the 
       *
       * @instance
       * @param {object} payload The payload containing the details of the action being requested
       * @fires alfresco/core/topics#MULTIPLE_ITEM_ACTION_REQUEST
       */
      onSelectedDocumentsAction: function alfresco_documentlibrary_CustomBulkSelectItems__onSelectedDocumentsAction(payload) {  
 console.log(" CustomBulkSeledt bulkops onSelectedDocumentsAction************.");

}
});
});

更新信息

请看AlfFilteringMenuItem.js和

postCreate: function alfresco_menus_AlfFilteringMenuItem____postCreate() {
         this.filterTopic && this.alfSubscribe(this.filterTopic, lang.hitch(this, this.filter));
         this.inherited(arguments);
      },

和

filter: function alfresco_menus_AlfFilteringMenuItem__filter(payload) {
         this.alfLog("warn", "No implementation of filtering extension point", payload);
      }

没有找到具体的实现。如果您启用调试日志，您应该能够显示警告消息。

我查看了 aikau 日志，您可以看到默认行为也有与您类似的多个请求（每个 widger 的每个请求）。唯一的区别是，filter 方法和publish (lang.hitch) 东西。希望你现在清楚了。

【讨论】：

如果您看到 OOB faceted-search.get.js ，它们使用与“alfresco/documentlibrary/AlfDocumentActionMenuItem”相同的名称和“ALF_SELECTED_DOCUMENTS_ACTION_REQUEST”主题用于多个操作（复制到、移动到、以 Zip 格式下载，启动工作流等）。对于我的自定义操作，我认为如果我们为每个自定义操作创建新文件，这将不是一个好的逻辑。
感谢您的指出，您是正确的。让我检查 OOB 的东西，并会更新你。
我更新了答案（更新信息），请看一下。
所以你的意思是它现有的行为和我写的任何逻辑都是正确的。在这种情况下，我可以使用相同的 Name 'name : "faceted-search/CustomBulkSelectItems/CustomBulkSelectItems" 和 publishTopic : "BULK_OPS"我们的多个自定义操作？ '
可以，但是会多次触发事件。你真的在那里发布主题吗？我建议对删除操作进行更多调试，以了解 Aikau 中如何处理发布主题。