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#1 2009-07-21 13:13:52

pompilos
Member
From: Spain
Registered: 2005-06-07
Posts: 114
Website

How to hide a file category that is empty?

I have a big list of files to downoad (quite 200) ordered by categories and subcategories. The code I used is very simple:

<txp:category_list type="file" form="downloads" children="0" break="" />

The problem is that some categories and subcategories are empty, because my users add and remove their files freely. What I want is that empty categories do not appear in the list, but I don´t know what is the code I have to use.

I founded this conditional code to hide sections with no articles, but I don´t know to modify it in order to hide categories and subcategories of files.

<txp:section_list break="p">
<!-- check if there are any articles in this section -->
<txp:variable name="hasarticle" value='<txp:article_custom section=''<txp:section />'' limit="1" />' />
<txp:if_variable name="hasarticle" value="">
<!-- no articles in this section, don't display the section -->
<txp:else />
…

Any help? Thanks in advance.

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#2 2009-07-29 23:34:25

Els
Admin
From: The Netherlands
Registered: 2004-06-06
Posts: 7,458

Re: How to hide a file category that is empty?

Not tested, but you might give this a try:

EDIT: removed code, mixing file categories and link tags is not such a good idea…

Last edited by Els (2009-08-03 20:18:36)

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#3 2009-08-03 15:31:04

pompilos
Member
From: Spain
Registered: 2005-06-07
Posts: 114
Website

Re: How to hide a file category that is empty?

Hello, Els. Here is the (wrong) result of your proposal. As I am not very goog with code, I can’t figure where is the error. Any other idea? And thanks, of course, for your effort.

Last edited by pompilos (2009-08-12 10:28:21)

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#4 2009-08-03 17:02:25

Els
Admin
From: The Netherlands
Registered: 2004-06-06
Posts: 7,458

Re: How to hide a file category that is empty?

Oops, sorry about that!

EDIT: my sincere apologies for posting nonsense code in my previous post… But hang on, I’m working on it and I’m almost there…

Last edited by Els (2009-08-03 20:20:52)

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#5 2009-08-03 21:01:24

Els
Admin
From: The Netherlands
Registered: 2004-06-06
Posts: 7,458

Re: How to hide a file category that is empty?

Got it! :)

<txp:category_list type="file" children="0" break="">
	<!-- check if this parent category or it's children contain one or more files -->
	<txp:variable name="check1" value='<txp:file_download_list category=''<txp:category_list type="file" parent=''''<txp:category />'''' break=","><txp:category /></txp:category_list>'' limit="1"><txp:file_download_name /></txp:file_download_list>' />
	<txp:if_variable name="check1" value="">
	<txp:else />
		<h2><txp:category title="1" /></h2>
		<txp:category_list type="file" parent='<txp:category />' exclude='<txp:category />' break="">
			<!-- check if this child category contains one or more files -->
			<txp:variable name="check2" value='<txp:file_download_list category=''<txp:category />'' limit="1"><txp:file_download_name /></txp:file_download_list>' />
			<txp:if_variable name="check2" value="">
			<txp:else />
				<h3><txp:category title="1" /></h3>
				<ul>
				<txp:file_download_list break="li" category='<txp:category />'><txp:file_download_link><txp:file_download_name /></txp:file_download_link></txp:file_download_list>
				</ul>
			</txp:if_variable>
		</txp:category_list>
	</txp:if_variable>
</txp:category_list>

Phew! This three level deep nesting of tags in attributes gave me a really hard time…

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#6 2009-08-03 21:11:35

Bloke
Developer
From: Leeds, UK
Registered: 2006-01-29
Posts: 8,312
Website

Re: How to hide a file category that is empty?

Els wrote:

Phew! This three level deep nesting of tags in attributes gave me a really hard time…

Go girl, go! If there was a TXP award for “most awesome example of nested tags” you’d be the clear winner. I think I need a beer and I merely had to read the code… ;-)

Last edited by Bloke (2009-08-03 21:12:01)


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#7 2009-08-03 21:36:20

Els
Admin
From: The Netherlands
Registered: 2004-06-06
Posts: 7,458

Re: How to hide a file category that is empty?

Bloke wrote:

I think I need a beer and I merely had to read the code… ;-)

:-D If you need one then I definitely deserve one ;) (and off I go to find myself a nice cold Jupiler…)

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#8 2009-08-04 00:38:16

tye
Member
From: Pottsville, NSW
Registered: 2005-07-06
Posts: 858
Website

Re: How to hide a file category that is empty?

This should work with article catgeories shouldn’t it? (With a bit of tweaking)

Its wierd… if I have an image category with no images, it doesn’t display. But if I have an article (or it seems file) category – it does.

Is there a reason for this?

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#9 2009-08-04 00:51:47

tye
Member
From: Pottsville, NSW
Registered: 2005-07-06
Posts: 858
Website

Re: How to hide a file category that is empty?

Actually – that is a total lie – it is smd_gallery which ignores empty categories…

It would be useful to included a tag called something like “showemptycats=“0/1” or something along those lines

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#10 2009-08-04 10:14:17

tye
Member
From: Pottsville, NSW
Registered: 2005-07-06
Posts: 858
Website

Re: How to hide a file category that is empty?

Ah – no worries – I found this thread which does something similar… although I’m still not getting the variable thing and how it is checking :(

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