调用文件删除页面后,返回到页面状态



我的表单允许用户选择一个目录以查看其中包含的文件:

(files.cfm)

<form action="#buildURL('main.files')#" method="post">
        <!--- Show the subfolder path, unless already at top level --->
        <cfif subfolderPath EQ "">
            <h2>You are at the top level.</h2>
        <cfelse>
            <h2>Current Folder: #subfolderPath#</h2>
        </cfif>
        <!--- Provide a drop-down list of subfolder names --->
        Select folder:
        <select name="subfolderPath" onChange="this.form.submit()">
            <!--- Provide an option to go up one level to the parent folder, --->
            <!--- unless already at the BaseFolder --->
            <cfif listLen(subfolderPath, "/") gt 0>
                <cfset parentFolder = listDeleteAt(subfolderPath, listLen(subfolderPath, "/"), "/")>
                <option value="#parentFolder#">[parent folder]</option>
            </cfif>
            <!--- For each record in the query returned by <cfdirectory> --->
            <cfloop query="DirectoryQuery">
                <!--- If the record represents a subfolder, list it as an option --->
                <cfif Type eq "Dir">
                    <option value="#subfolderPath#/#Name#">#Name#</option>
                </cfif>
            </cfloop> 
        </select>
        <!--- Submit button to navigate to the selected folder --->
        <input type="submit" value="go">
    </form> 

显示文件时,会有一个删除功能,该功能调用另一个页面:

<td align="absmiddle"><a href="#buildUrl('main.deleteFile?filename=#name#&folder=#rereplace(subFolderPath, '/','')#')#" onClick="alert('Are you sure you want to delete this file?')"><img src="/art/assets/images/delete.png" title="delete file" /></a></td>

在deletefile页面(deletefile.cfm)上,该文件已删除:

<cfset local.filePath = ExpandPath( ".uploadviewsfiles#rereplace(url.folder, '/','')#" ) />
    <cffile action="delete"
            file="#local.filePath##url.filename#"
    />

然后将用户发送回上一页:

<cflocation url="#buildUrl('main.files')#" />

,但不在刚刚删除文件的目录的同一视图中。我如何将用户返回文件页面并维护其目录的视图?

我可以想到几个方法

首先,您可以使用AJAX调用删除操作文件。成功完成后,请从当前页面中删除元素。这是一种花哨的方式,但可能很难实现,因为看起来您可能对此有些新。

第二,您可以将当前页面的上下文发送到删除文件(subfolderpath变量),当您重定向时将其添加到cflocation中。看起来您已经使用url.folder变量了,因此您可以执行此操作:

<cflocation url="#buildUrl('main.files', "subfolderPath=#rc.folder")#" />

看起来您使用的是FW/1,因此我假设" buildurl()"按广告宣传工作,并且您的URL&amp;形式变量在rc范围中。

从CFLocation到达初始页面后,您将需要将选择放回已选择的文件夹上。在创建<option>标签的循环中,添加检查以查看是否应该选择选项。我通常会做这样的事情:

<option value="..." <cfif listLast(rc.subFolderPath,"") EQ name>selected</cfif>>#name#</option>

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