Commentaires sur : Intersect plugin

Par : Peter Lurie

Peter Lurie — Sun, 03 Aug 2008 15:16:03 +0000

Hi!

This would be incredible for my needs. I am using wp 2.6 and it doesn’t seem to work.

When I enter http://domain.com/?cat=3,6&intersect=1
the URL expands into http://domain.com/category/category3/?intersect=1
where it indeed shows category 3, but shows all posts, and not only those in categories 3 & 6.

Any suggestions?
Thanks
Peter

Par : Jeff

Jeff — Sat, 05 Jul 2008 03:53:08 +0000

I couldn’t get this plugin working for me on 2.5.1. But after then digging more in the codex I found this example that does work to create an intersection of 2 categories. The codex says this started with 2.3:

query_posts(array(‘category__and’=>array(1,3)));

Par : David Basulto

David Basulto — Tue, 01 Apr 2008 17:02:28 +0000

Will this work on 2.5?

Par : Tester

Tester — Mon, 17 Sep 2007 02:33:50 +0000

This is exactly how it should work… I can’t upgrade past 2.1 because my host doesnt have a recent enough version of mysql.

Par : Ken

Ken — Fri, 07 Sep 2007 05:44:26 +0000

Do you have an example of how the plugin gets called? I am trying to call the « cat=2,19&intersect=1 within a query_posts parameter but it doesn’t work.

Par : tricky

tricky — Mon, 20 Aug 2007 00:45:01 +0000

i wonder if this works on WP 2.1+

works very fine for me on 2.0, and i’d like to upgrade but intersect is a must for me so i need to know…

Par : Evan

Evan — Sun, 16 Jul 2006 18:39:02 +0000

I’m having the same issue as E Becker above. When there are more than 2 levels of categories, it breaks the query. Here’s the error:

WordPress database error: [Unknown table 'p2c2' in where clause]
SELECT DISTINCT * FROM wp_posts LEFT JOIN wp_post2cat AS p2c0 ON (wp_posts.ID = p2c0.post_id) LEFT JOIN wp_post2cat AS p2c1 ON (wp_posts.ID = p2c1.post_id) WHERE 1=1 AND (p2c0.category_id = 25 AND p2c1.category_id = 47 AND p2c2.category_id = 4) AND post_date_gmt

Par : E Becker

E Becker — Tue, 06 Jun 2006 16:01:14 +0000

I’m using Wordpress 2.02 and have a lot of categories listed as children of other categories; these seem to be causing an issue with Intersect. Everytime I search on a category that has child categories, I get an SQL error WordPress database error: [Unknown table [VARIATION ON 'p2c{i}'] in where clause] (« VARIATION ON » indicating where the error changes based on the number of categories chosen).

It seems it’s add in all the child categories of the chosen parent category to the WHERE part of the SQL statement, and choking on them (these extra tables not included in the JOIN part, so perhaps this is why?).

Obviously, my knowledge of php and SQL is remedial at best, so I hope this explains the issue I’m having clearly.

Thanks for the great plugin; hopefully I can get this worked out and obviously help is greatly appreciated!

– E

Par : Benoit

Benoit — Tue, 06 Jun 2006 10:24:47 +0000

First of all, thanks for this! (Not sure I fully understand how it gets called by just adding intersect paramater… but never mind, I’m not a php dev.)

I was wondering, would you have a variant of this that would return the NUMBER of posting in the given intersection. This would greatly help us to be able to see that amongst a list of complicated intersections, only x actually would yield data..

Many thanks

Benoit

Par : David Esrati

David Esrati — Thu, 23 Feb 2006 14:51:55 +0000

Hi-
Does anyone have a working example of this plug-in on their site? WP 1.5?
It doesn’t seem to work in 2.0 installs-
and I can’t tell on Tester’s site (because I’m a stupid American and only took one year of French).

Thanks!