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Properly handle querying for meta by value without a key as well as those with invalid parameters. Props scribu. See #17264 

git-svn-id: http://svn.automattic.com/wordpress/trunk@17746 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
dd32 2011-04-28 15:02:16 +00:00
parent 5593f7f2f7
commit 911af51915
1 changed files with 31 additions and 15 deletions
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46
wp-includes/meta.php
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@ -476,9 +476,9 @@ class WP_Meta_Query {
$meta_id_column = esc_sql( $type . '_id' );
$join = '';
$join = array();
$where = array();
$i = 0;
foreach ( $this->queries as $k => $q ) {
$meta_key = isset( $q['key'] ) ? trim( $q['key'] ) : '';
$meta_compare = isset( $q['compare'] ) ? strtoupper( $q['compare'] ) : '=';
@ -492,30 +492,34 @@ class WP_Meta_Query {
elseif ( ! in_array( $meta_type, array( 'BINARY', 'CHAR', 'DATE', 'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', 'UNSIGNED' ) ) )
$meta_type = 'CHAR';
if ( empty( $meta_key ) && empty( $meta_value ) )
continue;
$i = count( $join );
$alias = $i ? 'mt' . $i : $meta_table;
$join .= "\nINNER JOIN $meta_table";
$join .= $i ? " AS $alias" : '';
$join .= " ON ($primary_table.$primary_id_column = $alias.$meta_id_column)";
$i++;
// Set JOIN
$join[$i] = "INNER JOIN $meta_table";
$join[$i] .= $i ? " AS $alias" : '';
$join[$i] .= " ON ($primary_table.$primary_id_column = $alias.$meta_id_column)";
$where[$k] = '';
if ( !empty( $meta_key ) )
$where[$k] = $wpdb->prepare( "$alias.meta_key = %s", $meta_key );
if ( !isset( $q['value'] ) )
if ( !isset( $q['value'] ) ) {
if ( empty( $where[$k] ) )
unset( $join[$i] );
continue;
}
$meta_value = $q['value'];
if ( in_array( $meta_compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {
if ( ! is_array( $meta_value ) )
$meta_value = preg_split( '/[,\s]+/', $meta_value );
if ( empty( $meta_value ) )
if ( empty( $meta_value ) ) {
unset( $join[$i] );
continue;
}
} else {
$meta_value = trim( $meta_value );
}
@ -532,13 +536,25 @@ class WP_Meta_Query {
$meta_compare_string = '%s';
}
$where[$k] = ' (' . $where[$k] . $wpdb->prepare( " AND CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string})", $meta_value );
if ( ! empty( $where[$k] ) )
$where[$k] .= ' AND ';
$where[$k] = ' (' . $where[$k] . $wpdb->prepare( "CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string})", $meta_value );
}
$where = ' AND (' . implode( " {$this->relation} ", $where ) . ' )';
$where = array_filter( $where );
if ( empty( $where ) )
$where = '';
else
$where = ' AND (' . implode( "\n{$this->relation} ", $where ) . ' )';
$join = implode( "\n", $join );
if ( ! empty( $join ) )
$join = ' ' . $join;
return apply_filters_ref_array( 'get_meta_sql', array( compact( 'join', 'where' ), $this->queries, $type, $primary_table, $primary_id_column, $context ) );
}
}
/**