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restricts to and from query vars when too many event dates #152

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restricts to and from query vars when too many event dates #152

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4 changes: 4 additions & 0 deletions includes/class-calendar-plus-dates-generator.php
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Original file line number Diff line number Diff line change
Expand Up @@ -278,6 +278,10 @@ public static function delete_old_dates( $delete_from = false ) {
update_option( 'calendarp_first_date_generated', $delete_from );
self::clear_cached_months();
}

// Lets use this opportunity to store the last known total dates
$total_old_dates = (int) $wpdb->get_var( "SELECT COUNT(ID) FROM $table" );
update_option( 'calendarp_last_known_total_dates', $delete_from );
}


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9 changes: 8 additions & 1 deletion includes/class-calendar-plus-query.php
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Expand Up @@ -6,7 +6,14 @@ class Calendar_Plus_Query {

public function __construct() {

$this->query_vars = array( 'from', 'to', 'location', 'calendarp_searchw', 'order' );
$this->query_vars = array( 'location', 'calendarp_searchw', 'order' );

// "to" and "from" query vars can lead to heavy queries, lets only allow them if total dates is below the limit
$last_known_total_dates = (int) get_option( 'calendarp_last_known_total_dates', 0 );
if( $last_known_total_dates < apply_filters( 'calendarp_heavy_query_vars_total_dates_limit', 500 ) ) {
$this->query_vars[] = 'from';
$this->query_vars[] = 'to';
}

if ( ! is_admin() ) {
add_action( 'pre_get_posts', array( $this, 'pre_get_posts' ) );
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