'integer',
'sanitize_callback' => 'absint',
'default' => 0,
));
add_settings_section(
'bw_featured_image_section',
'Default Featured Image',
array($this, 'render_section_description'),
'bw-featured-image'
);
add_settings_field(
'bw_featured_image_field',
'Select Default Image',
array($this, 'render_image_field'),
'bw-featured-image',
'bw_featured_image_section'
);
}
public function enqueue_admin_scripts($hook) {
if ($hook !== 'settings_page_bw-featured-image') {
return;
}
wp_enqueue_media();
wp_enqueue_script(
'bw-featured-image-admin',
plugin_dir_url(__FILE__) . 'admin.js',
array('jquery'),
'1.0.0',
true
);
wp_enqueue_style(
'bw-featured-image-admin',
plugin_dir_url(__FILE__) . 'admin.css',
array(),
'1.0.0'
);
}
public function render_section_description() {
echo 'Select a default featured image that will be used when a post does not have a featured image set.
';
}
public function render_image_field() {
$image_id = get_option('bw_featured_image_id', 0);
$image_url = '';
if ($image_id) {
$image_url = wp_get_attachment_image_url($image_id, 'medium');
}
?>
post_type !== 'post') {
return $value;
}
remove_filter('get_post_metadata', array($this, 'filter_post_metadata'), 10);
$existing = get_post_meta($object_id, '_thumbnail_id', true);
add_filter('get_post_metadata', array($this, 'filter_post_metadata'), 10, 4);
if ($existing) {
return $value;
}
$default_image_id = get_option('bw_featured_image_id', 0);
if (!$default_image_id) {
return $value;
}
if ($single) {
return $default_image_id;
}
return array($default_image_id);
}
}
BW_Featured_Image::get_instance();