Cyrille Giquello

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====== Wordpress INNER JOIN plante MySql ======

Wordpress et certains INNER JOIN plante MySql.

Quand je chercher events après une date ça fonctionne, on a seulement des ''OR'' sur les meta contenant la date de fin.

Par contre pour chercher events entre 2 dates c'est là que MySql part dans les choux, on a dans ce cas des ''OR'' contenant un ''AND'' sur deux meta.

===== La BdD =====

La base de données: {{ :informatique:wordpress:wp_mysql_inner_join:gicy1456_wp517.200929.sql.tgz |}}. Désolé, le SQL fait 14 Mo à cause de DIVI.

===== Le SQL =====

Le SQL généré par WP:
<code sql>
SELECT SQL_CALC_FOUND_ROWS  wp2r_posts.*
 FROM wp2r_posts
 INNER JOIN wp2r_postmeta ON ( wp2r_posts.ID = wp2r_postmeta.post_id )
 INNER JOIN wp2r_postmeta AS mt1 ON ( wp2r_posts.ID = mt1.post_id )
 INNER JOIN wp2r_postmeta AS mt2 ON ( wp2r_posts.ID = mt2.post_id )
 INNER JOIN wp2r_postmeta AS mt3 ON ( wp2r_posts.ID = mt3.post_id )
 INNER JOIN wp2r_postmeta AS mt4 ON ( wp2r_posts.ID = mt4.post_id )
 INNER JOIN wp2r_postmeta AS mt5 ON ( wp2r_posts.ID = mt5.post_id )
 INNER JOIN wp2r_postmeta AS mt6 ON ( wp2r_posts.ID = mt6.post_id )
 INNER JOIN wp2r_postmeta AS mt7 ON ( wp2r_posts.ID = mt7.post_id )
 INNER JOIN wp2r_postmeta AS mt8 ON ( wp2r_posts.ID = mt8.post_id )
 INNER JOIN wp2r_postmeta AS mt9 ON ( wp2r_posts.ID = mt9.post_id )
 INNER JOIN wp2r_postmeta AS mt10 ON ( wp2r_posts.ID = mt10.post_id )
 INNER JOIN wp2r_postmeta AS mt11 ON ( wp2r_posts.ID = mt11.post_id )
 INNER JOIN wp2r_postmeta AS mt12 ON ( wp2r_posts.ID = mt12.post_id )
 INNER JOIN wp2r_postmeta AS mt13 ON ( wp2r_posts.ID = mt13.post_id )
 INNER JOIN wp2r_postmeta AS mt14 ON ( wp2r_posts.ID = mt14.post_id )
 INNER JOIN wp2r_postmeta AS mt15 ON ( wp2r_posts.ID = mt15.post_id )
 INNER JOIN wp2r_postmeta AS mt16 ON ( wp2r_posts.ID = mt16.post_id )
 INNER JOIN wp2r_postmeta AS mt17 ON ( wp2r_posts.ID = mt17.post_id )
 INNER JOIN wp2r_postmeta AS mt18 ON ( wp2r_posts.ID = mt18.post_id )
 INNER JOIN wp2r_postmeta AS mt19 ON ( wp2r_posts.ID = mt19.post_id )
 INNER JOIN wp2r_postmeta AS mt20 ON ( wp2r_posts.ID = mt20.post_id )
WHERE 1=1
AND ( 
  ( wp2r_postmeta.meta_key = 'geo_city' AND wp2r_postmeta.meta_value LIKE 'Tours' ) 
  AND 
  ( 
    ( 
      ( mt1.meta_key = 'dates_0_date_start' AND mt1.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt2.meta_key = 'dates_0_date_end' AND mt2.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt3.meta_key = 'dates_1_date_start' AND mt3.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt4.meta_key = 'dates_1_date_end' AND mt4.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt5.meta_key = 'dates_2_date_start' AND mt5.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt6.meta_key = 'dates_2_date_end' AND mt6.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt7.meta_key = 'dates_3_date_start' AND mt7.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt8.meta_key = 'dates_3_date_end' AND mt8.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt9.meta_key = 'dates_4_date_start' AND mt9.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt10.meta_key = 'dates_4_date_end' AND mt10.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt11.meta_key = 'dates_5_date_start' AND mt11.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt12.meta_key = 'dates_5_date_end' AND mt12.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt13.meta_key = 'dates_6_date_start' AND mt13.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt14.meta_key = 'dates_6_date_end' AND mt14.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt15.meta_key = 'dates_7_date_start' AND mt15.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt16.meta_key = 'dates_7_date_end' AND mt16.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt17.meta_key = 'dates_8_date_start' AND mt17.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt18.meta_key = 'dates_8_date_end' AND mt18.meta_value >= '2020-10-03 00:00:00' )
    ) 
    OR 
    ( 
      ( mt19.meta_key = 'dates_9_date_start' AND mt19.meta_value <= '2020-10-04 00:00:00' ) 
      AND 
      ( mt20.meta_key = 'dates_9_date_end' AND mt20.meta_value >= '2020-10-03 00:00:00' )
    )
  )
)
AND wp2r_posts.post_type = 'caf37_event'
AND ((wp2r_posts.post_status = 'publish'))
GROUP BY wp2r_posts.ID
ORDER BY wp2r_posts.post_date
ASC LIMIT 0, 10 

</code>


===== Le tableau WP_Query =====

Le tableau `args` pour WP_Query:
<code php>
array (
  'post_type' => 'caf37_event',
  'post_status' => 'publish',
  'posts_per_page' => 10,
  'orderby' => 'date',
  'order' => 'ASC',
  'meta_query' => 
  array (
    'relation' => 'AND',
    0 => 
    array (
      'key' => 'geo_city',
      'value' => 'Tours',
      'compare' => 'LIKE',
    ),
    1 => 
    array (
      'relation' => 'OR',
      0 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_0_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_0_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      1 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_1_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_1_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      2 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_2_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_2_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      3 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_3_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_3_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      4 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_4_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_4_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      5 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_5_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_5_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      6 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_6_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_6_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      7 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_7_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_7_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      8 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_8_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_8_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
      9 => 
      array (
        'relation' => 'AND',
        0 => 
        array (
          'key' => 'dates_9_date_start',
          'value' => '2020-10-04 00:00:00',
          'compare' => '<=',
        ),
        1 => 
        array (
          'key' => 'dates_9_date_end',
          'value' => '2020-10-03 00:00:00',
          'compare' => '>=',
        ),
      ),
    ),
  ),
) 
</code>

===== Le bug dans le core WP =====

''class-wp-meta-query.php'' ligne 557.

<code php>
// JOIN clauses for NOT EXISTS have their own syntax.
if ( 'NOT EXISTS' === $meta_compare ) {
	$join .= " LEFT JOIN $this->meta_table";
	$join .= $i ? " AS $alias" : '';

	if ( 'LIKE' === $meta_compare_key ) {
		$join .= $wpdb->prepare( " ON ($this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column AND $alias.meta_key LIKE %s )", '%' . $wpdb->esc_like( $clause['key'] ) . '%' );
	} else {
		$join .= $wpdb->prepare( " ON ($this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column AND $alias.meta_key = %s )", $clause['key'] );
	}
// All other JOIN clauses.
} else {
 $join .= " INNER JOIN $this->meta_table";
 $join .= $i ? " AS $alias" : '';
 $join .= " ON ( $this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column )";
 // Ce qu'il faudrait à la place :
 //$join .= $wpdb->prepare(
 //    " ON ($this->primary_table.$this->primary_id_column = $alias.$this->meta_id_column
 //      AND $alias.meta_key = %s )", $clause['key'] );
}
</code>