File admin/class-papi-admin-meta-handler.php

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<?php

/**
 * Admin class that handle meta data, like post or term.
 */
final class Papi_Admin_Meta_Handler extends Papi_Core_Data_Handler {

    /**
     * Get meta type so we know where the data should be saved.
     *
     * @return string
     */
    private function get_meta_type() {
        if ( $current_filter = current_filter() ) {
            return papi_get_meta_type( explode( '_', $current_filter )[1] );
        }

        return papi_get_meta_type();
    }

    /**
     * Overwrite post data in `posts` table.
     *
     * @param int $post_id
     */
    private function overwrite_post_data( $post_id ) {
        global $wpdb;

        if ( empty( $post_id ) || empty( $this->overwrite ) ) {
            return;
        }

        $wpdb->update( $wpdb->posts, $this->overwrite, ['ID' => $post_id] );

        // Delete cache since it can be cached even if not saved in the database.
        foreach ( array_keys( $this->overwrite ) as $key ) {
            papi_cache_delete( $key, $post_id );
        }
    }

    /**
     * Pre save page template and page type.
     *
     * @param int $id
     */
    private function pre_save( $id ) {
        if ( empty( $id ) ) {
            return;
        }

        $data = $this->get_pre_data();

        foreach ( $data as $key => $value ) {
            if ( empty( $value ) ) {
                continue;
            }

            if ( is_array( $value ) ) {
                list( $keys, $value ) = $this->get_pre_deep_keys_value( $value );
                $key = sprintf( '%s_%s', $key, implode( '_', $keys ) );
            }

            update_metadata( $this->get_meta_type(), $id, $key, $value );
        }
    }

    /**
     * Save meta boxes.
     *
     * @param int    $id
     * @param object $post
     */
    public function save_meta_boxes( $id, $post = null ) {
        // Can't proceed without a id.
        if ( empty( $id ) ) {
            return;
        }

        // Check if our nonce is vailed.
        if ( ! wp_verify_nonce( papi_get_sanitized_post( 'papi_meta_nonce' ), 'papi_save_data' ) ) {
            return;
        }

        $meta_type = $this->get_meta_type();
        $post      = is_array( $post ) ? (object) $post : $post;

        if ( $meta_type === 'post' && $post_type = get_post_type_object( $post->post_type ) ) {
            // Check so the id is a post id and not a autosave post.
            if ( ! $this->valid_post_id( $id ) ) {
                return;
            }

            // Check the `edit_posts` capability before we continue.
            if ( ! current_user_can( $post_type->cap->edit_posts ) ) {
                return;
            }

            // Save post revision data.
            if ( $parent_id = wp_is_post_revision( $id ) ) {
                $slugs = papi_get_slugs( $id, true );

                foreach ( $slugs as $slug ) {
                    papi_update_field( $id, $slug, papi_get_field( $parent_id, $slug ) );
                }
            }

            // Delete all oEmbed caches.
            if ( class_exists( 'WP_Embed' ) ) {
                global $wp_embed;

                if ( $wp_embed instanceof WP_Embed ) {
                    $wp_embed->delete_oembed_caches( $id );
                }
            }
        }

        if ( $meta_type === 'term' && $taxonomy = get_taxonomy( papi_get_taxonomy() ) ) {
            // Check the `edit_terms` capability before we continue.
            if ( $taxonomy && ! current_user_can( $taxonomy->cap->edit_terms ) ) {
                return;
            }
        }

        $this->save_properties( $id );
    }

    /**
     * Save properties.
     *
     * @param int $id
     */
    public function save_properties( $id ) {
        // Pre save page template, page type and some others dynamic values.
        $this->pre_save( $id );

        // Get properties data.
        $data = $this->get_post_data();

        // Prepare properties data.
        $data = $this->prepare_properties_data( $data, $id );

        // Overwrite post data if any.
        if ( $this->get_meta_type() === 'post' ) {
            $this->overwrite_post_data( $id );
        }

        // Save all properties value
        foreach ( $data as $key => $value ) {
            papi_update_property_meta_value( [
                'id'    => $id,
                'slug'  => $key,
                'type'  => $this->get_meta_type(),
                'value' => $value
            ] );
        }
    }

    /**
     * Restore to post revision.
     *
     * @param int $post_id
     * @param int $revision_id
     */
    public function restore_post_revision( $post_id, $revision_id ) {
        $slugs = papi_get_slugs( $revision_id, true );

        foreach ( $slugs as $slug ) {
            $value = papi_get_field( $revision_id, $slug );

            if ( papi_is_empty( $value ) ) {
                papi_delete_field( $post_id, $slug );
            } else {
                papi_update_field( $post_id, $slug, $value );
            }
        }
    }

    /**
     * Setup actions.
     */
    protected function setup_actions() {
        add_action( 'save_post', [$this, 'save_meta_boxes'], 1, 2 );
        add_action( 'created_term', [$this, 'save_meta_boxes'], 1 );
        add_action( 'edit_term', [$this, 'save_meta_boxes'], 1 );
        add_action( 'wp_restore_post_revision', [$this, 'restore_post_revision'], 10, 2 );
    }

    /**
     * Check if post id is valid or not.
     *
     * @param  int $post_id
     *
     * @return bool
     */
    private function valid_post_id( $post_id ) {
        $key = papi_get_sanitized_post( 'action' ) === 'save-attachment-compat'
            ? 'id'
            : 'post_ID';
        $val = papi_get_sanitized_post( $key );

        // When autosave is in place the post id is located deeper in the post data array, the ids should not match.
        if ( isset( $_POST['data'], $_POST['data']['wp_autosave'], $_POST['data']['wp_autosave']['post_id'] ) ) {
            return sanitize_text_field( $_POST['data']['wp_autosave']['post_id'] ) !== strval( $post_id );
        }

        // Should not be the same id when `wp-preview` equals `dopreview`.
        if ( isset( $_POST['wp-preview'] ) && strtolower( $_POST['wp-preview'] ) === 'dopreview' ) {
            return $val !== strval( $post_id );
        }

        return $val === strval( $post_id );
    }
}

if ( is_admin() ) {
    new Papi_Admin_Meta_Handler;
}

Classes

Functions