[Solved] Displaying a random article but not the current one

Pat64 · 2020-12-12 11:53:28

Hi TXPexperts! 😍

Because my client do not need categories, currently, I’m using with some good results in order to simulate related_article 😜:

<txp:variable name="ID" value='<txp:article_id />' />
<txp:article_custom section='<txp:section />' limit="1" sort="rand()">
<txp:evaluate query='contains(<txp:variable name="ID" />,<txp:article_id />)'><txp:else />
<txp:title />
</txp:evaluate>
</txp:article_custom>

I wonder if there is a kind of negative attribute in order to simplify my purpose (i.e. not='<txp:article_id />')?

Please, don’t blame me if I’m not clever: I just discover this very useful <txp:article /> tag! 😁

Last edited by Pat64 (2020-12-13 12:51:07)

etc · 2020-12-12 12:54:42

Hi Patrick,

there are many solutions, the most straightforward is to use empty match attribute:

<txp:related_articles section match="" limit="1" sort="rand()">
    <txp:title />
</txp:related_articles>

jakob · 2020-12-12 12:55:57

Pat64 wrote #327434:

I wonder if there is a kind of negative attribute in order to simplify my purpose…

Hi PatTXPexpert 😄

There is! It’s called exclude. See the attribute description in the docs. You should be able to do:

<txp:article_custom section='<txp:section />' exclude='<txp:article_id />' limit="1" sort="rand()">
    <txp:title />
</txp:article_custom>

Pat64 · 2020-12-12 13:07:35

My bad!

Obviously, Julian, there is an exclude attribute…

But, sorry, I prefer Oleg’s solution 😜

(in use, with some good results, here: https://editions-du-26-octobre.com/catalogue-general/le-collage-paul-alexis)

Last edited by Pat64 (2020-12-12 13:17:33)

etc · 2020-12-12 13:12:52

Pat64 wrote #327437:

I prefer Oleg’s solution 😜

Internally it is mapped to Jacob’s one :-)

Will be even more straightforward in 4.8.5:

<txp:related_articles match="section" limit="1" sort="rand()">
    <txp:title />
</txp:related_articles>

Pat64 · 2020-12-12 13:18:09

Cool, Thanks !

Pat64 · 2020-12-13 07:12:44

Oleg:

Is there a way to filter the results by empty custom field (or negative)?

We can’t add this attribute custom_field_name="%"

colak · 2020-12-13 08:40:58

Would this help?

<txp:related_articles match="section" limit="1" sort="rand()">
<txp:if_custom_field name="name" not>
<txp:if_custom_field name="name2" not>
<txp:if_custom_field name="name3" not>
<txp:if_custom_field name="name4" not>
<txp:if_custom_field name="name5" not>
    <txp:title />
</txp:if_custom_field>
</txp:if_custom_field>
</txp:if_custom_field>
</txp:if_custom_field>
</txp:if_custom_field>
</txp:related_articles>

Edited to add that it would be nice if a comma separated list of CF names could be supported. Something like… <txp:if_custom_field name="name,name2,name_etc" not>

Pat64 · 2020-12-13 08:53:59

Thank you Yiannis.

But, unfortunately, sometimes we got no results (matching custom fields are omitted)…

Just to notice: my first error comes with the official document where “related articles tag is used to produce a list of related (by category) articles” but in fact it is more flexible (see: https://docs.textpattern.com/tags/related_articles)

Pat64 · 2020-12-13 09:07:31

Ok.

Based both on etc and colak help, I’m using this:

match=", not %my_custom_field%"

It seems to work as expected. But, now I need some Dev’s expertise: is it good or… bad? 🤨

Who’s bad

— Michael Jackson.

Last edited by Pat64 (2020-12-13 09:13:07)

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