AlkantarClanX12
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<?php
/**
* This class handles the logic for snippet revisions.
*
* @package WPCode
*/
/**
* Class WPCode_Revisions.
*/
class WPCode_Revisions {
/**
* All snippet data before the update.
*
* @var array
*/
protected $previous_snippet_data;
/**
* Constructor for initiating the revisions actions.
*/
public function __construct() {
add_action( 'pre_post_update', array( $this, 'maybe_capture_snippet_data' ) );
add_action( 'wpcode_snippet_after_update', array( $this, 'maybe_create_revision' ), 10, 2 );
}
/**
* Capture the data of the snippet before it is updated to compare in order
* to decide if a revision should be created.
*
* @param int $post_ID The id of the post.
*
* @return void
*/
public function maybe_capture_snippet_data( $post_ID ) {
if ( 'wpcode' !== get_post_type( $post_ID ) ) {
return;
}
$this->capture_snippet_data( $post_ID );
}
/**
* Create a new revision from the differences between the old version of the snippet and the new values.
*
* @param int $snippet_id The id of the snippet.
* @param WPCode_Snippet $snippet The snippet object.
*
* @return void
*/
public function maybe_create_revision( $snippet_id, $snippet ) {
$data_to_compare = $this->get_all_snippet_revision_data( $snippet, true );
$updated_data = array();
// Check if something changed in the revision data.
foreach ( $data_to_compare as $key => $value ) {
if ( isset( $this->previous_snippet_data[ $key ] ) && $value === $this->previous_snippet_data[ $key ] ) {
continue;
}
$updated_data[ $key ] = $value;
}
// If we have updated data, save the whole snippet data so we can easily compare between revisions.
if ( ! empty( $updated_data ) ) {
$this->create_revision( $snippet_id, $data_to_compare );
}
}
/**
* Get all snippet data for storing as a revision.
*
* @param WPCode_Snippet $snippet The snippet to grab data for.
* @param bool $unslash Whether to unslash the code.
*
* @return array
*/
public function get_all_snippet_revision_data( $snippet, $unslash = false ) {
$all_data = $snippet->get_data_for_caching();
if ( isset( $snippet->tags ) ) {
// Let's grab the actual slug here to avoid confusion.
unset( $snippet->tags );
}
$all_data['note'] = $snippet->get_note();
$all_data['tags'] = $snippet->get_tags();
$all_data['custom_shortcode'] = $snippet->get_custom_shortcode();
$all_data['device_type'] = $snippet->get_device_type();
$all_data['schedule'] = $snippet->get_schedule();
if ( $unslash ) {
$all_data['code'] = wp_unslash( $all_data['code'] );
}
return $all_data;
}
/**
* Before a snippet is updated we capture all the data to compare with the updated values.
*
* @param int $snippet_id The snippet id.
*
* @return void
*/
public function capture_snippet_data( $snippet_id ) {
$snippet = new WPCode_Snippet( $snippet_id );
$this->previous_snippet_data = $this->get_all_snippet_revision_data( $snippet );
}
/**
* Create a revision from the data passed.
*
* @param int $snippet_id The snippet to associate the revision with.
* @param array $updated_data The new revision data.
*
* @return void
*/
public function create_revision( $snippet_id, $updated_data ) {
if ( empty( $updated_data ) ) {
return;
}
global $wpdb;
$wpdb->insert( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
$wpdb->prefix . 'wpcode_revisions',
array(
'snippet_id' => $snippet_id,
'revision_data' => wp_json_encode( $updated_data ),
'author_id' => get_current_user_id(),
'created' => current_time( 'mysql' ),
),
array(
'%d',
'%s',
'%d',
'%s',
)
);
$cache_key = 'wpcode_revisions_for_snippet_' . $snippet_id;
wp_cache_delete( $cache_key, 'wpcode' );
}
/**
* Get a list of available revisions.
*
* @param int $snippet_id The snippet id.
*
* @return array
*/
public function get_snippet_revisions( $snippet_id ) {
global $wpdb;
$cache_key = 'wpcode_revisions_for_snippet_' . $snippet_id;
$results = wp_cache_get( 'wpcode_revisions_for_snippet_' . $snippet_id, 'wpcode' );
if ( false === $results ) {
$results = $wpdb->get_results( // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
$wpdb->prepare(
"SELECT * FROM {$wpdb->prefix}wpcode_revisions WHERE snippet_id=%d ORDER BY created DESC",
$snippet_id
)
);
wp_cache_set( $cache_key, $results, 'wpcode' );
}
if ( ! empty( $wpdb->last_error ) ) {
return array();
}
return $results;
}
/**
* Get the snippet ID from a revision ID.
*
* @param int $revision_id The revision id.
*
* @return int|false
*/
public function get_revision_snippet_id( $revision_id ) {
global $wpdb;
$cache_key = 'wpcode_snippet_id_for_revision_' . $revision_id;
$snippet_id = wp_cache_get( $cache_key, 'wpcode' );
if ( false === $snippet_id ) {
$snippet_id = $wpdb->get_var(// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery
$wpdb->prepare(
"SELECT snippet_id FROM {$wpdb->prefix}wpcode_revisions WHERE revision_id=%d",
$revision_id
)
);
if ( is_null( $snippet_id ) ) {
return false;
}
wp_cache_set( $cache_key, 'wpcode' );
}
return absint( $snippet_id );
}
/**
* Load a revision's data by id.
*
* @param int $revision_id The revision id.
*
* @return array
*/
public function get_revision_data( $revision_id ) {
$snippet_data = $this->get_revision( $revision_id );
if ( empty( $snippet_data ) ) {
return array();
}
return json_decode( $snippet_data->revision_data, true );
}
/**
* Load a revision's data by id.
*
* @param int $revision_id The revision id.
*
* @return array|StdClass
*/
public function get_revision( $revision_id ) {
global $wpdb;
$query = $wpdb->prepare(
"SELECT * FROM {$wpdb->prefix}wpcode_revisions WHERE revision_id=%d",
$revision_id
);
// This is called only when restoring a revision.
$snippet_data = $wpdb->get_row( $query );// phpcs:ignore
if ( empty( $snippet_data->revision_data ) ) {
return array();
}
return $snippet_data;
}
}