class-gv-shortcode-gventry.php

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<?php
namespace GV\Shortcodes;

/** If this file is called directly, abort. */
if ( ! defined( 'GRAVITYVIEW_DIR' ) ) {
    die();
}

/**
 * The [gventry] shortcode.
 */
class gventry extends \GV\Shortcode {
    /**
     * {@inheritDoc}
     */
    public $name = 'gventry';

    /**
     * Process and output the [gventry] shortcode.
     *
     * @param array $passed_atts The attributes passed.
     * @param string $content The content inside the shortcode.
     * @param string $tag The shortcode tag.
     *
     * @return string|null The output.
     */
    public function callback( $atts, $content = '', $tag = '' ) {
        $request = gravityview()->request;

        if ( $request->is_admin() ) {
            return apply_filters( 'gravityview/shortcodes/gventry/output', '', null, null, $atts );
        }

        $atts = wp_parse_args( $atts, array(
            'id'        => 0,
            'entry_id'  => 0,
            'view_id'   => 0,
            'edit'      => 0,
        ) );

        $atts = gv_map_deep( $atts, array( 'GravityView_Merge_Tags', 'replace_get_variables' ) );

        /**
         * @filter `gravityview/shortcodes/gventry/atts` Filter the [gventry] shortcode attributes.
         * @param array $atts The initial attributes.
         * @since 2.0
         */
        $atts = apply_filters( 'gravityview/shortcodes/gventry/atts', $atts );

        $view = \GV\View::by_id( $atts['view_id'] );

        if ( ! $view ) {
            gravityview()->log->error( 'View does not exist #{view_id}', array( 'view_id' => $atts['view_id'] ) );
            return apply_filters( 'gravityview/shortcodes/gventry/output', '', null, null, $atts );
        }

        $entry_id = ! empty( $atts['entry_id'] ) ? $atts['entry_id'] : $atts['id'];

        switch( $entry_id ):
            case 'last':
                if ( class_exists( '\GF_Query' ) ) {
                    /**
                     * @todo Remove once we refactor the use of get_view_entries_parameters.
                     *
                     * Since we're using \GF_Query shorthand initialization we have to reverse the order parameters here.
                     */
                    add_filter( 'gravityview_get_entries', $filter = function( $parameters, $args, $form_id ) {
                        if ( ! empty( $parameters['sorting'] ) ) {
                            /**
                             * Reverse existing sorts.
                             */
                            $sort = &$parameters['sorting'];
                            $sort['direction'] = $sort['direction'] == 'RAND' ? : ( $sort['direction'] == 'ASC' ? 'DESC' : 'ASC' );
                        } else {
                            /**
                             * Otherwise, sort by date_created.
                             */
                            $parameters['sorting'] = array(
                                'key' => 'id',
                                'direction' => 'ASC',
                                'is_numeric' => true
                            );
                        }
                        return $parameters;
                    }, 10, 3 );
                    $entries = $view->get_entries( null );
                    remove_filter( 'gravityview_get_entries', $filter );
                } else {
                    $entries = $view->get_entries( null );

                    /** If a sort already exists, reverse it. */
                    if ( $sort = end( $entries->sorts ) ) {
                        $entries = $entries->sort( new \GV\Entry_Sort( $sort->field, $sort->direction == \GV\Entry_Sort::RAND ? : ( $sort->direction == \GV\Entry_Sort::ASC ? \GV\Entry_Sort::DESC : \GV\Entry_Sort::ASC ) ), $sort->mode );
                    } else {
                        /** Otherwise, sort by date_created */
                        $entries = $entries->sort( new \GV\Entry_Sort( \GV\Internal_Field::by_id( 'id' ), \GV\Entry_Sort::ASC ), \GV\Entry_Sort::NUMERIC );
                    }
                }

                if ( ! $entry = $entries->first() ) {
                    return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, null, $atts );
                }
                break;
            case 'first':
                if ( ! $entry = $view->get_entries( null )->first() ) {
                    return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, null, $atts );
                }
                break;
            default:
                if ( ! $entry = \GV\GF_Entry::by_id( $entry_id ) ) {
                    gravityview()->log->error( 'Entry #{entry_id} not found', array( 'view_id' => $atts['view_id'] ) );
                    return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, null, $atts );
                }
        endswitch;

        if ( $view->form->ID != $entry['form_id'] ) {
            gravityview()->log->error( 'Entry does not belong to view (form mismatch)' );
            return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, $entry, $atts );
        }

        if ( post_password_required( $view->ID ) ) {
            gravityview()->log->notice( 'Post password is required for View #{view_id}', array( 'view_id' => $view->ID ) );
            return apply_filters( 'gravityview/shortcodes/gventry/output', get_the_password_form( $view->ID ), $view, $entry, $atts );
        }

        if ( ! $view->form  ) {
            gravityview()->log->notice( 'View #{id} has no form attached to it.', array( 'id' => $view->ID ) );

            /**
             * This View has no data source. There's nothing to show really.
             * ...apart from a nice message if the user can do anything about it.
             */
            if ( \GVCommon::has_cap( array( 'edit_gravityviews', 'edit_gravityview' ), $view->ID ) ) {
                $return = sprintf( __( 'This View is not configured properly. Start by <a href="%s">selecting a form</a>.', 'gk-gravityview' ), esc_url( get_edit_post_link( $view->ID, false ) ) );
                return apply_filters( 'gravityview/shortcodes/gventry/output', $return, $view, $entry, $atts );
            }

            return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, $entry, $atts );
        }

        /** Private, pending, draft, etc. */
        $public_states = get_post_stati( array( 'public' => true ) );
        if ( ! in_array( $view->post_status, $public_states ) && ! \GVCommon::has_cap( 'read_gravityview', $view->ID ) ) {
            gravityview()->log->notice( 'The current user cannot access this View #{view_id}', array( 'view_id' => $view->ID ) );
            return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, $entry, $atts );
        }

        /** Unapproved entries. */
        if ( $entry['status'] != 'active' ) {
            gravityview()->log->notice( 'Entry ID #{entry_id} is not active', array( 'entry_id' => $entry->ID ) );
            return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, $entry, $atts );
        }

        $is_admin_and_can_view = $view->settings->get( 'admin_show_all_statuses' ) && \GVCommon::has_cap('gravityview_moderate_entries', $view->ID );

        if ( $view->settings->get( 'show_only_approved' ) && ! $is_admin_and_can_view ) {
            if ( ! \GravityView_Entry_Approval_Status::is_approved( gform_get_meta( $entry->ID, \GravityView_Entry_Approval::meta_key ) )  ) {
                gravityview()->log->error( 'Entry ID #{entry_id} is not approved for viewing', array( 'entry_id' => $entry->ID ) );
                return apply_filters( 'gravityview/shortcodes/gventry/output', '', $view, $entry, $atts );
            }
        }

        if ( \GV\Utils::get( $_GET, 'edit' ) && \GV\Utils::get( $_GET, 'gvid' ) ) {
            $atts['edit'] = 1;
        }

        if ( $atts['edit'] ) {
            /**
             * Based on code in our unit-tests.
             * Mocks old context, etc.
             */
            $loader = \GravityView_Edit_Entry::getInstance();
            /** @var \GravityView_Edit_Entry_Render $render */
            $render = $loader->instances['render'];

            // Override the \GV\Request::is_entry() check for the query var.
            $_entry_query_var_backup = get_query_var( \GV\Entry::get_endpoint_name() );
            set_query_var( \GV\Entry::get_endpoint_name(), $entry['id'] );
            add_filter( 'gravityview_is_edit_entry', $use_entry = function() use ( $entry ) {
                return $entry;
            } );

            add_filter( 'gravityview/is_single_entry', '__return_true' );

            $form = \GFAPI::get_form( $entry['form_id'] );

            $data = \GravityView_View_Data::getInstance( $view );
            $template = \GravityView_View::getInstance( array(
                'form' => $form,
                'form_id' => $form['id'],
                'view_id' => $view->ID,
                'entries' => array( $entry ),
                'atts' => \GVCommon::get_template_settings( $view->ID ),
            ) );

            $_GET['edit'] = wp_create_nonce(
                \GravityView_Edit_Entry::get_nonce_key( $view->ID, $form['id'], $entry['id'] )
            );

            add_filter( 'gravityview/edit_entry/success', $callback = function ( $message, $_view_id, $_entry, $back_link, $redirect_url ) use ( $view, $entry, $atts ) {
                /**
                 * @filter `gravityview/shortcodes/gventry/edit/success` Modify the edit entry success message in [gventry].
                 *
                 * @since  develop
                 *
                 * @param string      $message      The message.
                 * @param \GV\View    $view         The View.
                 * @param \GV\Entry   $entry        The entry.
                 * @param array       $atts         The attributes.
                 * @param string      $back_link    URL to return to the original entry. @since 2.14.6
                 * @param string|null $redirect_url URL to return to after the update. @since 2.14.6
                 */
                return apply_filters( 'gravityview/shortcodes/gventry/edit/success', $message, $view, $entry, $atts, $back_link, $redirect_url );
            }, 10, 5 );

            ob_start() && $render->init( $data, \GV\GF_Entry::by_id( $entry['id'] ), $view );
            $output = ob_get_clean(); // Render :)

            // Restore the \GV\Request::is_entry() check for the query var.
            set_query_var( \GV\Entry::get_endpoint_name(), $_entry_query_var_backup );
            remove_filter( 'gravityview_is_edit_entry', $use_entry );
            remove_filter( 'gravityview/is_single_entry', '__return_true' );
            remove_filter( 'gravityview/edit_entry/success', $callback );
        } else {
            /** Remove the back link. */
            add_filter( 'gravityview/template/links/back/url', '__return_false' );

            $renderer = new \GV\Entry_Renderer();

            $request = new \GV\Mock_Request();
            $request->returns['is_entry'] = $entry;

            $output = $renderer->render( $entry, $view, $request );

            remove_filter( 'gravityview/template/links/back/url', '__return_false' );
        }

        /**
         * @filter `gravityview/shortcodes/gventry/output` Filter the [gventry] output.
         * @param string $output The output.
         * @param \GV\View|null $view The View detected or null.
         * @param \GV\Entry|null $entry The Entry or null.
         *
         * @since 2.0
         */
        return apply_filters( 'gravityview/shortcodes/gventry/output', $output, $view, $entry, $atts );
    }
}