The two functions defined in Listing 6 are called by the DetailView metadata framework to do the actual rendering of the connector inside the form.

清单6中定义的两个函数由detailview元数据框架调用，以便将连接器实际呈现在表单中。

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In this case, when the user selects a contact in the rendered list, we want processing to continue with the detailview action passing the selected contact as a parameter with the request form data.

在这种情况下，当用户选择处理列表中的联系人时，处理应当继续进行到detailview操作并把选中的联系人作为参数与请求表单数据一起被传递。

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