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article_custom, excluding a specific category
I was trying generating a list of all articles (on a list page), except those from on specific category (named foo2 in the samples below).
The best I could come up:
<txp:article_custom limit="300" allowoverride="0" wraptag="ol" break="" class="overview-list" sort="section desc">
<txp:if_article_category not name="foo2">
<li><h2 id="als-<txp:article_id />"><a href="<txp:permlink />"><txp:title /></a></h2>
<txp:excerpt escape="textile" />
<footer><p class="article-meta">Posted: <time datetime="<txp:posted format="%Y-%m-%d" />"> <txp:posted /></time><!-- utc +9--> <txp:section /></p>
</footer></li>
</txp:if_article_category>
</txp:article_custom>That feels a little bloated. I would have thought using the not attribute or the exclude attribute would have helped in, as in:
<txp:article_custom form="all_article_list" limit="300" allowoverride="0" wraptag="ol" break="" class="overview-list" sort="section desc" not category="foo2" />But no luck.
Or with exclude="field(Category1,foo2), or exclude='<txp:category name="foo2") />'.But perhaps I don’t understand the syntax to use in that case?
Incidentally, with my working markup, I see lots (150+) of blank lines of markup where the excluded articles would have been.
<li><h2>……………</h2></li>
(blank line – ~150 times, there are about 45 articles in the offending category)
<li>That is like the <txp:if_article_category not name="foo2"> outputs a blank line for each article in that foo2 category. Not a disaster, gzip zaps those away, but feels a little dirty. trim didn’t seem to help.
TXP 4.9-dev, PHP 8.3 and 8.4
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Re: article_custom, excluding a specific category
Try <txp:article_custom category="foo2" exclude> and then the rest of your attributes. That should exclude it, though I don’t know if it works without specifying which category1/2 to exclude.
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Re: article_custom, excluding a specific category
That indeed works (without specifying which of category ½) and simplify the markup. Thank you. I need to try to understand the mechanism better.
My actual content construct is more complicated than used above: txp:if_exerpt … txp:else txp:if_description … and some more. That gives us a nice annotated list of articles (the section displaying it is not public).
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Re: article_custom, excluding a specific category
phiw13 wrote #341096:
Incidentally, with my working markup, I see lots (150+) of blank lines of markup where the excluded articles would have been.
<li><h2>……………</h2></li>...That is like the
<txp:if_article_category not name="foo2">outputs a blank line for each article in thatfoo2category. Not a disaster, gzip zaps those away, but feels a little dirty.trimdidn’t seem to help.
This probably comes from the surrounding linebreaks, try setting trim on <txp:article_custom /> itself (or regex trim/replace?)
Bloke wrote #341097:
Try
<txp:article_custom category="foo2" exclude>and then the rest of your attributes. That should exclude it, though I don’t know if it works without specifying which category1/2 to exclude.
Valueless exclude will exclude all ‘filter’ atts (section, category, etc). One can fine-tune it like
<txp:article_custom section="to_include" category="to_exclude" exclude="category" match="Category1" />Offline
Re: article_custom, excluding a specific category
etc wrote #341099:
Valueless
excludewill exclude all ‘filter’ atts (section, category, etc). One can fine-tune it [withmatch].
That’s really flexible. Sooo many things to document when 4.9.0 drops soon!
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Re: article_custom, excluding a specific category
etc wrote #341099:
This probably comes from the surrounding linebreaks, try setting
trimon<txp:article_custom />itself (or regextrim/replace?)Valueless
excludewill exclude all ‘filter’ atts (section, category, etc). One can fine-tune it like
<txp:article_custom section="to_include" category="to_exclude" exclude="category" match="Category1" />...
That works equally well. When articles either have the foo2 category as Category1 or Category2 then simply omitting the match attribute is the way, I think. match="Category1, Category2" appears to be the default.
Omitting the value for the exclude attribute offers interesting possibilities
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Re: article_custom, excluding a specific category
Just to make things clearer, the global not attribute is tag agnostic (like all global attributes), and vice versa. It does not ‘see’ category="foo2" and other attributes in
<txp:article_custom ... not category="foo2" />Its role is just to blindly switch true/false parts on tags output:
<txp:evaluate query="2*2=4">
right
<txp:else />
wrong
</txp:evaluate>
<!-- right -->
<txp:evaluate not query="2*2=4">
right
<txp:else />
wrong
</txp:evaluate>
<!-- wrong -->In the second block, <txp:evaluate /> itself is not aware of the presence of not, and would output parse($thing, true), since 2*2=4. But parse() takes not into account and returns parse($thing, false) instead. If a tag does not use parse() function for output, not has no (expected) effect on it.
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