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Traversing Search Results with Sessions + Transients
17

Traversing Search Results

Jul 18, 2015

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Tammy Hart
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Page 1: Traversing Search Results

TraversingSearch Resultswith Sessions + Transients

Page 2: Traversing Search Results

Tammy HartWeb Designer + Developerat UpTrending

@tammyhart

Page 3: Traversing Search Results

Objective:

1. Temporarily store search results

2. Navigate search results with next and previous post links

Page 4: Traversing Search Results

You will need:

• WordPress site with several posts

• WP Session Manager Plugin by Eric Mann

Page 5: Traversing Search Results

1 2 3

654

987

121110

? =

Page 6: Traversing Search Results

loopconf_search_array( $search_hash )=

array( 2, 4, 8, 9, 11 )

Page 7: Traversing Search Results

/** * Return search array */function loopconf_search_array( $search_hash ) { // check for existence of unique transient if ( false === ( $search_array = get_transient( 'loopconf_search_' . $search_hash ) ) ) { global $wpdb; $posts = $wpdb->get_results( $GLOBALS['wp_query']->request );

$search_array = array();

if ( false === empty( $posts ) ) { foreach ( $posts as $post ) { $search_array[] = $post->ID; } } // save the transient for 10 minutes set_transient( 'loopconf_search_' . $search_hash, $search_array, MINUTE_IN_SECONDS * 10 ); } return $search_array;}

Page 8: Traversing Search Results

?

unique string

posts array

session

Page 9: Traversing Search Results

$wp_session['search_string'] = 'cats'

$wp_session['search_hash'] = 'lkmvdsoi939ks0fdm...'

$wp_session['search_array'] = array( 2, 4, 8, 9, 11 )

Page 10: Traversing Search Results

/** * Set session search_string */function loopconf_set_search_string() { global $wp_query; $wp_session = WP_Session::get_instance(); // if we’re on a search page, save the search data if ( !is_admin() && is_search() && isset( $wp_query->query_vars_hash ) ) { $search_string = $wp_query->query['s']; $search_hash = $wp_query->query_vars_hash; $wp_session['search_string'] = $search_string; $wp_session['search_hash'] = $search_hash; $wp_session['search_array'] = loopconf_search_array( $search_hash ); } // if we’re anywhere else, clear the search data if ( !is_admin() && !is_search() && !is_single() && is_main_query() ) { $wp_session['search_string'] = $wp_session['search_hash'] = $wp_session['search_array'] = null; }}add_action( 'pre_get_posts', 'loopconf_set_search_string' );

Page 11: Traversing Search Results

Post 4 Post 9

Post 8WordPress ipsum dolor sit amet install brecker basie multisite coltrane wordcamp ella westi. foundation mike parker

multisite nacin wp-cli monk gershwin customizer plugin. gpl mark vaultpress boren database �lter westi upgrade mike

chat strayhorn api. theme dexter baker api wp-cli action automattic jaquith parker premium oscar brecker tyner.

Donncha green plugin gershwin customizer tyner multisite buddypress helen duke database bbpress carmen blog. Mike

green carmen westi jaquith, akismet matt buddypress tyner plugin getz stitt duke. Nacin smith api tyner ozz language.

Monk boren cache, post api green reinhardt transient. Smith boren b2, api cache getz mullenweg WordPress. Davis tyner

carmen buddypress, mike chat smith api theme meetup mingus install stitt. Boren jones basie, chat otto bbpress �lter

stitt.

Dexter wordcamp jazz plugin davis oscar. Akismet mike jen customizer website green. Donncha jen haiku blog website,

oscar andrew. Westi premium boren oscar, baker mike basie wordcamp upgrade language jen gpl ella dexter.

Page 12: Traversing Search Results

if ( $go_forward ) { return 9 }

else { return 4 }

Page 13: Traversing Search Results

/** * Get the next or previous post in the array */function loopconf_get_next_search_result( $next = true ) { $wp_session = WP_Session::get_instance(); // make sure there’s a search saved in the session if ( isset( $wp_session['search_array'] ) === false ) { return false; } // set variables $next_key = 0;

$search_array = $wp_session['search_array']->toArray(); $current_key = array_search( get_the_ID(), $search_array );

...

Page 14: Traversing Search Results

...

// get next or previous location in the array if ( $next === true ) {

$next_key = $current_key + 1; if ( isset( $search_array[$next_key] ) === false ) { $next_key = 0; }

} else {

$next_key = $current_key - 1; if ( isset( $search_array[$next_key] ) === false ) { end( $search_array ); $next_key = key( $search_array ); }

} // return value from that location return $search_array[$next_key];}

Page 15: Traversing Search Results

<?php$prev_url = $next_url = false;

// get next and prev search results or just the linksif ( loopconf_get_next_search_result() ) { $wp_session = WP_Session::get_instance(); $prev_url = get_permalink( loopconf_get_next_search_result( false ) ); $next_url = get_permalink( loopconf_get_next_search_result() );

} else {

$prev_url = get_previous_post(); $next_url = get_next_post();

}?>

<div class="single-nav">

<a href="<?php echo esc_url( $prev_url ); ?>" class="prev">Previous</a>

<a href="<?php echo esc_url( $next_url ); ?>" class="next">Next</a>

</div>

Page 16: Traversing Search Results

Live example: weststudio.com

Page 17: Traversing Search Results

�anks!

bit.ly/traverse_loopconf

@uptrending / @tammyhart