/**
* Saves the entity URL for the specified post ID (set via the *save_post* hook).
*
* @param int $post_id The post ID.
*
* @return int|null
*/
function wl_entity_type_save_custom_fields($post_id)
{
// Check if our nonce is set.
if (!isset($_POST['wordlift_entity_box_nonce'])) {
return $post_id;
}
$nonce = $_POST['wordlift_entity_box_nonce'];
// Verify that the nonce is valid.
if (!wp_verify_nonce($nonce, 'wordlift_entity_box')) {
return $post_id;
}
// If this is an autosave, our form has not been submitted, so we don't want to do anything.
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return $post_id;
}
// Check the user's permissions.
if ('page' == $_POST['post_type']) {
if (!current_user_can('edit_page', $post_id)) {
return $post_id;
}
} else {
if (!current_user_can('edit_post', $post_id)) {
return $post_id;
}
}
// save the entity URL.
wl_set_entity_uri($post_id, $_POST['entity_url']);
/*
// save the rdf:type values.
wl_set_entity_rdf_types(
$post_id,
explode( "\r\n", $_POST['entity_types'] )
);
*/
}
/**
* Only accept URIs or local entity IDs.
* Build new entity if the user inputted a name that is not present in DB.
*/
public function sanitize_data_filter($value)
{
if (empty($value)) {
return null;
}
// Check that the inserted URI, ID or name does not point to a saved entity.
if (is_numeric($value)) {
$absent_from_db = is_null(get_post($value));
// search by ID
} else {
$absent_from_db = is_null(wl_get_entity_post_by_uri($value)) && is_null(get_page_by_title($value, OBJECT, Wordlift_Entity_Service::TYPE_NAME));
// search by name
}
// Is it an URI?
$name_is_uri = strpos($value, 'http') === 0;
// We create a new entity only if the entity is not present in the DB.
// In the case of an external uri, we just save the uri.
if ($absent_from_db && !$name_is_uri) {
// ...we create a new entity!
$new_entity_id = wp_insert_post(array('post_status' => 'publish', 'post_type' => Wordlift_Entity_Service::TYPE_NAME, 'post_title' => $value));
$new_entity = get_post($new_entity_id);
$type = 'http://schema.org/' . (isset($this->expected_uri_type) ? $this->expected_uri_type[0] : 'Thing');
wl_set_entity_main_type($new_entity_id, $type);
// Build uri for this entity
$new_uri = wl_build_entity_uri($new_entity_id);
wl_set_entity_uri($new_entity_id, $new_uri);
wl_push_entity_post_to_redlink($new_entity);
// Update the value that will be saved as meta
$value = $new_entity_id;
}
return $value;
}
/**
* Save the specified data as an entity in WordPress. This method only create new entities. When an existing entity is
* found (by its URI), then the original post is returned.
*
* @param array $entity_properties, associative array containing:
* string 'uri' The entity URI.
* string 'label' The entity label.
* string 'main_type_uri' The entity type URI.
* string 'description' The entity description.
* array 'type_uris' An array of entity type URIs.
* array 'images' An array of image URLs.
* int 'related_post_id' A related post ID.
* array 'same_as' An array of sameAs URLs.
*
* @return null|WP_Post A post instance or null in case of failure.
*/
function wl_save_entity($entity_properties)
{
$uri = $entity_properties['uri'];
$label = $entity_properties['label'];
$type_uri = $entity_properties['main_type_uri'];
$description = $entity_properties['description'];
$entity_types = $entity_properties['type_uris'];
$images = $entity_properties['images'];
$related_post_id = $entity_properties['related_post_id'];
$same_as = $entity_properties['same_as'];
// Avoid errors due to null.
if (is_null($entity_types)) {
$entity_types = array();
}
wl_write_log("[ uri :: {$uri} ][ label :: {$label} ][ type uri :: {$type_uri} ]");
// Prepare properties of the new entity.
$params = array('post_status' => is_numeric($related_post_id) ? get_post_status($related_post_id) : 'draft', 'post_type' => WL_ENTITY_TYPE_NAME, 'post_title' => $label, 'post_content' => $description, 'post_excerpt' => '');
// Check whether an entity already exists with the provided URI.
$post = wl_get_entity_post_by_uri($uri);
if (null !== $post) {
// We insert into the params the entity ID, so it will be updated and not inserted.
$params['ID'] = $post->ID;
}
// create or update the post.
$post_id = wp_insert_post($params, true);
// TODO: handle errors.
if (is_wp_error($post_id)) {
wl_write_log(': error occurred');
// inform an error occurred.
return null;
}
wl_set_entity_main_type($post_id, $type_uri);
// Save the entity types.
wl_set_entity_rdf_types($post_id, $entity_types);
// Get a dataset URI for the entity.
$wl_uri = wl_build_entity_uri($post_id);
// Save the entity URI.
wl_set_entity_uri($post_id, $wl_uri);
// Add the uri to the sameAs data if it's not a local URI.
if ($wl_uri !== $uri) {
array_push($same_as, $uri);
}
$new_uri = wl_get_entity_uri($post_id);
// Save the sameAs data for the entity.
wl_schema_set_value($post_id, 'sameAs', $same_as);
// Call hooks.
do_action('wl_save_entity', $post_id);
wl_write_log("[ post id :: {$post_id} ][ uri :: {$uri} ][ label :: {$label} ][ wl uri :: {$wl_uri} ][ types :: " . implode(',', $entity_types) . " ][ images count :: " . count($images) . " ][ same_as count :: " . count($same_as) . " ]");
foreach ($images as $image_remote_url) {
// Check if image is already present in local DB
if (strpos($image_remote_url, site_url()) !== false) {
// Do nothing.
continue;
}
// Check if there is an existing attachment for this post ID and source URL.
$existing_image = wl_get_attachment_for_source_url($post_id, $image_remote_url);
// Skip if an existing image is found.
if (null !== $existing_image) {
continue;
}
// Save the image and get the local path.
$image = wl_save_image($image_remote_url);
// Get the local URL.
$filename = $image['path'];
$url = $image['url'];
$content_type = $image['content_type'];
$attachment = array('guid' => $url, 'post_title' => $label, 'post_content' => '', 'post_status' => 'inherit', 'post_mime_type' => $content_type);
// Create the attachment in WordPress and generate the related metadata.
$attachment_id = wp_insert_attachment($attachment, $filename, $post_id);
// Set the source URL for the image.
wl_set_source_url($attachment_id, $image_remote_url);
$attachment_data = wp_generate_attachment_metadata($attachment_id, $filename);
wp_update_attachment_metadata($attachment_id, $attachment_data);
// Set it as the featured image.
set_post_thumbnail($post_id, $attachment_id);
}
// The entity is pushed to Redlink on save by the function hooked to save_post.
// save the entity in the triple store.
wl_linked_data_push_to_redlink($post_id);
// finally return the entity post.
return get_post($post_id);
}
/**
* Get the entity URI of the provided post.
*
* @uses wl_build_entity_uri() to create a new URI if the entity doesn't have an URI yet.
* @uses wl_set_entity_uri() to set a newly create URI.
*
* @param int $post_id The post ID.
*
* @return string|null The URI of the entity or null if not configured.
*/
function wl_get_entity_uri($post_id)
{
$uri = get_post_meta($post_id, WL_ENTITY_URL_META_NAME, true);
// If the dataset uri is not properly configured, null is returned
if ('' === wl_configuration_get_redlink_dataset_uri()) {
return null;
}
// Set the URI if it isn't set yet.
$post_status = get_post_status($post_id);
if (empty($uri) && 'auto-draft' !== $post_status && 'revision' !== $post_status) {
$uri = wl_build_entity_uri($post_id);
// "http://data.redlink.io/$user_id/$dataset_id/post/$post->ID";
wl_set_entity_uri($post_id, $uri);
}
return $uri;
}
/**
* Save the specified data as an entity in WordPress. This method only create new entities. When an existing entity is
* found (by its URI), then the original post is returned.
*
* @param array $entity_data, associative array containing:
* string 'uri' The entity URI.
* string 'label' The entity label.
* string 'main_type' The entity type URI.
* array 'type' An array of entity type URIs.
* string 'description' The entity description.
* array 'images' An array of image URLs.
* int 'related_post_id' A related post ID.
* array 'same_as' An array of sameAs URLs.
*
* @return null|WP_Post A post instance or null in case of failure.
*/
function wl_save_entity($entity_data)
{
$uri = $entity_data['uri'];
$label = $entity_data['label'];
$type_uri = $entity_data['main_type'];
$entity_types = isset($entity_data['type']) ? $entity_data['type'] : array();
$description = $entity_data['description'];
$images = isset($entity_data['image']) ? wl_force_to_array($entity_data['image']) : array();
$same_as = isset($entity_data['sameas']) ? wl_force_to_array($entity_data['sameas']) : array();
$related_post_id = isset($entity_data['related_post_id']) ? $entity_data['related_post_id'] : null;
$other_properties = isset($entity_data['properties']) ? $entity_data['properties'] : array();
// wl_write_log( "[ uri :: $uri ][ label :: $label ][ type uri :: $type_uri ]" );
// Prepare properties of the new entity.
$params = array('post_status' => is_numeric($related_post_id) ? get_post_status($related_post_id) : 'draft', 'post_type' => Wordlift_Entity_Service::TYPE_NAME, 'post_title' => $label, 'post_content' => $description, 'post_excerpt' => '');
// Check whether an entity already exists with the provided URI.
$post = wl_get_entity_post_by_uri($uri);
if (null !== $post) {
// We insert into the params the entity ID, so it will be updated and not inserted.
$params['ID'] = $post->ID;
// Preserve the current entity status
if ('public' === $post->post_status) {
$params['post_status'] = $post->post_status;
}
// Preserve the current entity post_content.
$params['post_content'] = $post->post_content;
// Preserve the entity post_title to avoid de-synch between WP and RL
// See: https://github.com/insideout10/wordlift-plugin/issues/221
$params['post_title'] = $post->post_title;
}
// If Yoast is installed and active, we temporary remove the save_postdata hook which causes Yoast to "pass over"
// the local SEO form values to the created entity (https://github.com/insideout10/wordlift-plugin/issues/156)
// Same thing applies to SEO Ultimate (https://github.com/insideout10/wordlift-plugin/issues/148)
// This does NOT affect saving an entity from the entity admin page since this function is called when an entity
// is created when saving a post.
global $wpseo_metabox, $seo_ultimate;
if (isset($wpseo_metabox)) {
remove_action('wp_insert_post', array($wpseo_metabox, 'save_postdata'));
}
if (isset($seo_ultimate)) {
remove_action('save_post', array($seo_ultimate, 'save_postmeta_box'));
}
// The fact that we're calling here wp_insert_post is causing issues with plugins (and ourselves too) that hook to
// save_post in order to save additional inputs from the edit page. In order to avoid issues, we pop all the hooks
// to the save_post and restore them after we saved the entity.
// see https://github.com/insideout10/wordlift-plugin/issues/203
// see https://github.com/insideout10/wordlift-plugin/issues/156
// see https://github.com/insideout10/wordlift-plugin/issues/148
global $wp_filter;
$save_post_filters = $wp_filter['save_post'];
$wp_filter['save_post'] = array();
// create or update the post.
$post_id = wp_insert_post($params, true);
// Restore all the existing filters.
$wp_filter['save_post'] = $save_post_filters;
// If Yoast is installed and active, we restore the Yoast save_postdata hook (https://github.com/insideout10/wordlift-plugin/issues/156)
if (isset($wpseo_metabox)) {
add_action('wp_insert_post', array($wpseo_metabox, 'save_postdata'));
}
// If SEO Ultimate is installed, add back the hook we removed a few lines above.
if (isset($seo_ultimate)) {
add_action('save_post', array($seo_ultimate, 'save_postmeta_box'), 10, 2);
}
// TODO: handle errors.
if (is_wp_error($post_id)) {
wl_write_log(': error occurred');
// inform an error occurred.
return null;
}
wl_set_entity_main_type($post_id, $type_uri);
// Save the entity types.
wl_set_entity_rdf_types($post_id, $entity_types);
// Get a dataset URI for the entity.
$wl_uri = wl_build_entity_uri($post_id);
// Save the entity URI.
wl_set_entity_uri($post_id, $wl_uri);
// Add the uri to the sameAs data if it's not a local URI.
if ($wl_uri !== $uri) {
array_push($same_as, $uri);
}
$new_uri = wl_get_entity_uri($post_id);
// Save the sameAs data for the entity.
wl_schema_set_value($post_id, 'sameAs', $same_as);
// Save the other properties (latitude, langitude, startDate, endDate, etc.)
foreach ($other_properties as $property_name => $property_value) {
wl_schema_set_value($post_id, $property_name, $property_value);
}
// Call hooks.
do_action('wl_save_entity', $post_id);
wl_write_log("[ post id :: {$post_id} ][ uri :: {$uri} ][ label :: {$label} ][ wl uri :: {$wl_uri} ][ types :: " . implode(',', $entity_types) . " ][ images count :: " . count($images) . " ][ same_as count :: " . count($same_as) . " ]");
foreach ($images as $image_remote_url) {
// Check if image is already present in local DB
if (strpos($image_remote_url, site_url()) !== false) {
// Do nothing.
continue;
}
// Check if there is an existing attachment for this post ID and source URL.
$existing_image = wl_get_attachment_for_source_url($post_id, $image_remote_url);
// Skip if an existing image is found.
if (null !== $existing_image) {
continue;
}
// Save the image and get the local path.
$image = wl_save_image($image_remote_url);
// Get the local URL.
$filename = $image['path'];
$url = $image['url'];
$content_type = $image['content_type'];
$attachment = array('guid' => $url, 'post_title' => $label, 'post_content' => '', 'post_status' => 'inherit', 'post_mime_type' => $content_type);
// Create the attachment in WordPress and generate the related metadata.
$attachment_id = wp_insert_attachment($attachment, $filename, $post_id);
// Set the source URL for the image.
wl_set_source_url($attachment_id, $image_remote_url);
$attachment_data = wp_generate_attachment_metadata($attachment_id, $filename);
wp_update_attachment_metadata($attachment_id, $attachment_data);
// Set it as the featured image.
set_post_thumbnail($post_id, $attachment_id);
}
// The entity is pushed to Redlink on save by the function hooked to save_post.
// save the entity in the triple store.
wl_linked_data_push_to_redlink($post_id);
// finally return the entity post.
return get_post($post_id);
}
