打字稿-仅在使用URL链接文件的情况下链接它 [英] Typoscript - Link a file only if it exists using URL

问题描述

我正在使用TemplavoilàPlus，我有一个由用户填写的字段，标题为field_title. 我使用此字段通过Typoscript对象路径为FCE的其他字段创建URL/HTML.

I am using Templavoilà Plus and I have one field which the user complete with a title called field_title. I use this field to create an URL/HTML for other fields of my FCE, using Typoscript Object Path.

常量:

file = fileadmin/datasheets/|.pdf

设置:

lib.field_datasheet = TEXT
lib.field_datasheet {
 field = field_title
 wrap = <a href="{$file}"></a>
}

问题在于，仅当文件/URL存在时，我才想这样做. 首先，我想检查一下我创建的URL是否未链接到404页面. 然后，我认为检查文件大小是否为0会更容易. 经过两天的工作，到处查看之后，我意识到这些解决方案都不是一件容易的事……

The problem is that I want to do that only if the file/URL exists. First, I thought of checking if the URL I create didn't link to a 404 page. Then I thought it would be easier to check if the file size wasn't 0. After working on that for two days, and after looking everywhere, I realized neither of these solutions were easy…

我认为我使用stdWrap.rawUrlEncode，file:current:size，if.isTrue.data，FILE等有很多答案，但是显然，Typoscript不是为初学者而设计的，而且我似乎找不到如何正确地排列所有内容，以及如何正确使用所有这些内容.

I think I have bits of answers, using stdWrap.rawUrlEncode, file:current:size, if.isTrue.data, FILE, etc… but obviously, Typoscript isn't made for beginners, and I can't seem to find how to put everything in the right order, and how to use all this properly.

我认为我可以使用类似的方法来解决这种情况:

I think I could manage the condition using something like :

if.isTrue < .10 #.10 containing the size of the file
if.value = 0

但是真正困难的部分是从我使用Typoscript创建的URL中获取文件大小. 我很漂亮，肯定有一种方法只能用Typoscript来做到这一点，因为我知道一个人可以从其uid中获取文件的大小…

But the part which really is difficult is getting the file size from a URL I created using Typoscript. I'm pretty there must be a way to do that only with Typoscript since I know one can get the size of a file from its uid…

或者也许我应该坚持检查该网址是否未指向404页面. 也许有一个我没想到的简单解决方案！

Or maybe I should just stick to checking if that URL don't lead to a 404 page. Or maybe there is a simpler solution I didn't think about!

任何帮助将不胜感激，如果这个问题太容易解决，对不起，非常感谢您阅读本文！ =)

Any help would be greatly appreciated, sorry if that problem is too easy to solve, and thank you very much already for reading this post ! =)

我正在使用Typo3 7.6

推荐答案

您可以为此使用文件链接.未经测试，应该是这样的:

You can probably use filelink for that. Without testing it, it should be something like:

lib.field_datasheet = TEXT
lib.field_datasheet {
  field = field_title
  wrap = |.pdf
  filelink {
    path = fileadmin/datasheets/
    file.field = field_title
  }
}

不确定如果文件不存在该怎么办.它可能什么也不显示，在这种情况下，您可以使用ifEmpty.field = field_title仅显示文本.

Not sure what that does if the file isn't there though. It probably shows nothing, in which case you can use ifEmpty.field = field_title to just show the text.

有关文件链接的更多信息: https://docs.typo3.org/typo3cms/TyposcriptReference/Functions/Filelink.html

More on filelink: https://docs.typo3.org/typo3cms/TyposcriptReference/Functions/Filelink.html

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