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Added transient caching

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This commit is contained in:
Justin Foell
2013-03-31 22:44:35 -05:00
parent 414e2648bb
commit f12989e5ff
3 changed files with 75 additions and 27 deletions
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lib/LatestMapWidget.class.php
+72 -24
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@@ -56,38 +56,85 @@ class WPStrava_LatestMapWidget extends WP_Widget {
extract( $args );
$ride_index_params = $instance['ride_index_params'];
$distance_min = $instance['distance_min'];
$rides = $this->getRides( $ride_index_params );
if ( ! empty( $rides ) ):
if ( ! empty( $distance_min ) )
$rides = $this->getRidesLongerThan( $rides, $distance_min );
$build_new = false;
$ride = current( $rides );
//try our transient first
$ride_transient = get_transient( 'strava_latest_map_ride' );
$ride_option = get_option( 'strava_latest_map_ride' );
$map_deets = $this->getMapDetails( $ride->id );
if ( $ride_transient )
$ride = $ride_transient;
if ( ! $ride ) {
$rides = $this->getRides( $ride_index_params );
if ( ! empty( $rides ) ) {
echo $before_widget;
if ( ! empty( $distance_min ) )
$rides = $this->getRidesLongerThan( $rides, $distance_min );
$max = 50;
$count = count( $map_deets->latlng );
$mod = (int) ( $count / $max );
$ride = current( $rides );
//update transients & options
if ( $ride->id != $ride_option->id ) {
$build_new = true;
update_option( 'strava_latest_map_ride', $ride );
}
if ( $ride->id != $ride_transient->id )
set_transient( 'strava_latest_map_ride', $ride, 60 * 60 ); //one hour
}
}
if ( $ride ):
echo $before_widget;
//die('<pre>' . print_r($ride, true));
?><h3 class="widget-title"><?php echo $ride->ride->name ?></h3>
<a href="http://app.strava.com/activities/<?php echo $ride->id ?>"><?php
echo $this->getStaticImage( $ride->id, $build_new );
?></a><?php
echo $after_widget;
endif;
}
private function buildImage( $map_details ) {
$url = 'http://maps.google.com/maps/api/staticmap?maptype=terrain&size=390x260&sensor=false&path=color:0xFF0000BF|weight:2|';
$url_len = strlen( $url );
$point_len = 0;
$num = 50;
$count = count( $map_details->latlng );
$full_url = '';
$max_chars = 1865;
//get the longest usable URL
while ( $url_len + $point_len < $max_chars ) {
$mod = (int) ( $count / $num );
$points = array();
for ( $i = 0; $i < $count; $i += $mod ) {
$point = $map_deets->latlng[$i];
$points[] = number_format( $point[0],4 ) . ',' . number_format( $point[1],4 );
$point = $map_details->latlng[$i];
$points[] = number_format( $point[0], 4 ) . ',' . number_format( $point[1], 4 );
}
$url_points = join( '|', $points );
echo "<img src='http://maps.google.com/maps/api/staticmap?maptype=terrain&size=390x260&sensor=false&path=color:0xFF0000BF|weight:2|{$url_points}' />";
/*
echo '<pre>';
print_r($map_deets);
echo '</pre>';
*/
echo $after_widget;
endif;
$point_len = strlen( $url_points );
if ( $url_len + $point_len < $max_chars )
$full_url = $url . $url_points;
$num++;
}
return "<img src='{$full_url}' />";
}
private function getStaticImage( $ride_id, $build_new ) {
$img = get_option( 'strava_latest_map' );
if ( $build_new || ! $img ) {
$map_details = $this->getMapDetails( $ride_id );
$img = $this->buildImage( $map_details );
update_option( 'strava_latest_map', $img );
}
return $img;
}
private function getRides( $params ) {
@@ -104,7 +151,7 @@ class WPStrava_LatestMapWidget extends WP_Widget {
private function getRidesLongerThan( $rides, $dist ) {
$meters = $this->som->distance_inverse( $dist );
$long_rides = array();
foreach ( $rides as $ride ) {
$ride_info = $this->getRideInfo( $ride->id );
@@ -112,6 +159,7 @@ class WPStrava_LatestMapWidget extends WP_Widget {
$long_rides[] = $ride_info;
}
}
return $long_rides;
}