我如何指定客户群的对立面

Question

在您没有排除段的组件中：

我的主题是创建客户群的对立面。
如果我有一个客户群 DEVELOPER 那么我想创建 EXCEPT_DEVELOPER （“除了 DEVELOPER 之外每个人都可以看到这个组件”）。

我们想要 override/enhance Intershop 的核心方法来检索分配。
目标是动态检查用户是否在 EXCEPT 客户群中。

...
...
forEach(CustomerSegment csItem : customerSegmentList) { 
   if(csItem.contains("EXCEPT")){ //EXCEPT~DEVELOPER
      String customerSegmentToExcept = csItem.split("~")[1]; //DEVELOPER
      if(currentUser.isIn(customerSegmentToExcept)) //current user is in customer segment DEVELOPER
         return "Don't display component";
   }
}
...
...
return "Display component";

你怎么看？您有什么建议或其他方法可以实现这一目标吗？谢谢！

Answer 1

覆盖或增强 pagelet 分配查找的方法是提供自定义 PageletVisibilityFilter。 2016 年，我在 Intershop 开发者大会上就该主题发表了演讲。

通常，它们连接在基于 position/priority 的开箱即用过滤器列表中，并且当内容入口点（例如插槽、占位符）时，它们从最高优先级到最低优先级执行, page, include) 被呈现。

您需要实现该接口：

/**
 * A pagelet visibility filter is a class that decides if a pagelet 
 * is visible to the end user or not. The <code>decide</code> method is invoked 
 * to get the decision from the implementation. 
 */
public interface PageletVisibilityFilter
{
    /**
     * Returns the decision if a pagelet should be filtered or not.
     * 
     * @param pagelet the pagelet which visibility is tested
     * 
     * @return the decision for the pagelet visibility
     * 
     * @see PageletVisibilityFilterReply
     */
    public PageletVisibilityFilterReply decide(Pagelet pagelet);
}

并在组件框架中注册该实现。快速查看 app_sf_responsive 揭示了实例化和连接实例的位置。

<instance name="pageletABTestGroupVisibilityFilter" with="PageletABTestGroupVisibilityFilter" />
<fulfill requirement="pageletVisibilityFilter" of="pageletVisibilityFilterCtnr" with="pageletABTestGroupVisibilityFilter" />

准备好覆盖客户群的原始开箱即用过滤器，以表达您试图实现的补充逻辑。

Answer 2

这与 Johannes 的建议一致。这是我的做法

写一个implementations.component

<implementation name="PageletUserGroupVisibilityFilterNegated" class="YOUR.CUSTOM.JAVA.CLASS">
  <implements contract="PageletVisibilityFilter" />
</implementation>

写一个instances.component

<instance name="pageletUserGroupVisibilityFilterNegated" with="PageletUserGroupVisibilityFilterNegated" />
<replace name="pageletUserGroupVisibilityFilter" with="PageletUserGroupVisibilityFilterNegated" delegate="pageletUserGroupVisibilityFilterNegated" />

现在编写 class PageletUserGroupVisibilityFilterNegated 来支持这种连接。获取 OOB PageletUserGroupVisibilityFilter.java 并更改决定方法 returns 接受的方式。这是 java 的关键代码片段。在我的逻辑中，如果有一个以“EXCLUDE”结尾的客户群 ID，则逻辑切换，否则它将继续以原始逻辑运行。

final Collection<UserGroup> currentUserUserGroups = getCurrentUserGroups();
boolean accept = false;
for(final Assignment<Pagelet, UserGroup> assignment : assignments)
{
    if (currentUserUserGroups.contains(assignment.getTo()))
    {
         if(assignment.getTo().getID().endsWith("_EXCLUDE"))
         {
             //return DENY as soon as at least one user group of the assignment is contained within current user's user groups and ends with _EXCLUDE
             return PageletVisibilityFilterReply.DENY;
         }
         else if (currentUserUserGroups.contains(assignment.getTo()))
         {
             accept = true;
         }
    }
}
if (accept) {
    //return ACCEPT as at least one user group of the assignment is contained within current user's user groups
    return PageletVisibilityFilterReply.ACCEPT;
}

我如何指定客户群的对立面

How can I specify the opposite of a customer segment

java

intershop

isml