File properties/class-papi-property-repeater.php

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<?php

/**
 * Repeater property that can repeat multiple properties.
 */
class Papi_Property_Repeater extends Papi_Property {

    /**
     * Cache child values or not.
     *
     * @var bool
     */
    protected $cache = false;

    /**
     * The convert type.
     *
     * @var string
     */
    public $convert_type = 'array';

    /**
     * Repeater counter number.
     *
     * @var int
     */
    protected $counter = 0;

    /**
     * The default value.
     *
     * @var array
     */
    public $default_value = [];

    /**
     * Exclude properties that is not allowed in a repeater.
     *
     * @var array
     */
    protected $exclude_properties = ['flexible'];

    /**
     * Delete value from the database.
     *
     * @param  string $slug
     * @param  int    $post_id
     * @param  string $type
     *
     * @return bool
     */
    public function delete_value( $slug, $post_id, $type ) {
        $rows   = intval( papi_get_property_meta_value( $post_id, $slug ) );
        $value  = $this->load_value( $rows, $slug, $post_id );
        $value  = papi_to_property_array_slugs( $value, $slug );
        $result = true;

        foreach ( $value as $key => $value ) {
            $out    = papi_delete_property_meta_value( $post_id, $key, $type );
            $result = $out ? $result : $out;
        }

        return $result;
    }

    /**
     * Format the value of the property before it's returned
     * to WordPress admin or the site.
     *
     * @param  mixed  $values
     * @param  string $repeater_slug
     * @param  int    $post_id
     *
     * @return array
     */
    public function format_value( $values, $repeater_slug, $post_id ) {
        if ( ! is_array( $values ) ) {
            return [];
        }

        $values = papi_to_property_array_slugs( $values, $repeater_slug );

        foreach ( $values as $slug => $value ) {
            if ( papi_is_property_type_key( $slug ) ) {
                continue;
            }

            $property_type_slug = papi_get_property_type_key_f( $slug );

            if ( ! isset( $values[$property_type_slug] ) ) {
                continue;
            }

            // Get property type
            $property_type_value = $values[$property_type_slug];
            $property_type = papi_get_property_type( $property_type_value );

            if ( ! is_object( $property_type ) ) {
                continue;
            }

            // Get property child slug.
            $child_slug = $this->get_child_slug( $repeater_slug, $slug );

            // Get raw value from cache if enabled.
            if ( $this->cache ) {
                $raw_value = papi_cache_get( $slug, $post_id, $this->get_meta_type() );
            } else {
                $raw_value = false;
            }

            // Load the value.
            if ( $raw_value === null || $raw_value === false ) {
                $values[$slug] = $property_type->load_value( $value, $child_slug, $post_id );
                $values[$slug] = papi_filter_load_value( $property_type->type, $values[$slug], $child_slug, $post_id, papi_get_meta_type() );

                if ( ! papi_is_empty( $values[$slug] ) && $this->cache ) {
                    papi_cache_set( $slug, $post_id, $values[$slug], $this->get_meta_type() );
                }
            } else {
                $values[$slug] = $raw_value;
            }

            // Format the value from the property class.
            $values[$slug] = $property_type->format_value( $values[$slug], $child_slug, $post_id );

            if ( ! is_admin() ) {
                $values[$slug] = papi_filter_format_value( $property_type->type, $values[$slug], $child_slug, $post_id, papi_get_meta_type() );
            }

            $values[$property_type_slug] = $property_type_value;
        }

        if ( ! is_admin() ) {
            foreach ( $values as $slug => $value ) {
                if ( papi_is_property_type_key( $slug ) ) {
                    unset( $values[$slug] );
                }
            }
        }

        return papi_from_property_array_slugs( $values, $repeater_slug );
    }

    /**
     * Get child slug from the repeater slug.
     *
     * @param  string $repeater_slug
     * @param  string $child_slug
     *
     * @return string
     */
    protected function get_child_slug( $repeater_slug, $child_slug ) {
        return preg_replace( '/^\_/', '', preg_replace( '/\_\d+\_/', '', str_replace( $repeater_slug, '', $child_slug ) ) );
    }

    /**
     * Get default settings.
     *
     * @return array
     */
    public function get_default_settings() {
        return [
            'add_new_label' => __( 'Add new row', 'papi' ),
            'closed_rows'   => false,
            'items'         => [],
            'layout'        => 'table',
            'limit'         => -1
        ];
    }

    /**
     * Get import settings.
     *
     * @return array
     */
    public function get_import_settings() {
        return [
            'property_array_slugs' => true
        ];
    }

    /**
     * Get results from the database.
     *
     * @param  int    $value
     * @param  string $repeater_slug
     * @param  int    $post_id
     *
     * @return array
     */
    protected function get_results( $value, $repeater_slug, $post_id ) {
        global $wpdb;

        if ( $this->is_option_page() ) {
            $table = $wpdb->prefix . 'options';
            $query = $wpdb->prepare(
                "SELECT * FROM `$table` WHERE `option_name` LIKE '%s' ORDER BY `option_id` ASC",
                $repeater_slug . '_%'
            );
        } else {
            $table  = sprintf( '%s%smeta', $wpdb->prefix, $this->get_meta_type() );
            $column = papi_get_meta_id_column( $this->get_meta_type() );
            $query  = $wpdb->prepare(
                "SELECT * FROM `$table` WHERE `meta_key` LIKE '%s' AND `$column` = %s ORDER BY `meta_id` ASC", $repeater_slug . '_%',
                $post_id
            );
        }

        $dbresults = $wpdb->get_results( $query );
        $value     = intval( $value );

        // Do not proceed with empty value.
        if ( empty( $value ) ) {
            return [[], []];
        }

        $values  = [];
        $results = [];
        $trash   = [];

        // Get row results.
        $rows = array_values( $this->get_row_results( $dbresults ) );

        // Add repeater slug with number of rows to the values array.
        $values[$repeater_slug] = $value;

        for ( $i = 0; $i < $value; $i++ ) {
            $no_trash = [];

            if ( ! isset( $no_trash[$i] ) ) {
                $no_trash[$i] = [];
            }

            if ( ! isset( $rows[$i] ) ) {
                continue;
            }

            foreach ( $rows[$i] as $slug => $meta ) {
                if ( ! is_string( $slug ) || ! isset( $rows[$i][$slug] ) ) {
                    continue;
                }

                // Add meta object to the no trash array.
                // so it won't be deleted.
                $no_trash[$slug] = $meta;

                // Add property value.
                $values[$meta->meta_key] = papi_maybe_json_decode(
                    maybe_unserialize( $meta->meta_value )
                );
            }

            // Get the meta keys to delete.
            $trash_diff = array_diff( array_keys( $rows[$i] ), array_keys( $no_trash[$i] ) );

            if ( ! empty( $trash_diff ) ) {
                // Find all trash meta objects from results array.
                foreach ( $trash_diff as $slug ) {
                    if ( ! isset( $results[$i] ) || ! isset( $rows[$i][$slug] ) ) {
                        continue;
                    }

                    $trash[$results[$i][$slug]->meta_key] = $rows[$i][$slug];
                }
            }
        }

        $properties = $this->get_settings_properties();

        // Add empty rows that isn't saved to database.
        for ( $i = 0; $i < $value; $i++ ) {
            foreach ( $properties as $prop ) {
                if ( ! isset( $prop->slug ) ) {
                    continue;
                }

                $slug = sprintf( '%s_%d_%s', $repeater_slug, $i, unpapify( $prop->slug ) );

                if ( ! isset( $values[$slug] ) ) {
                    $values[$slug] = null;
                }
            }
        }

        return [$values, $trash];
    }

    /**
     * Get row results.
     *
     * @param  array $dbresults
     *
     * @return array
     */
    protected function get_row_results( $dbresults ) {
        $results     = [];
        $option_page = $this->is_option_page();

        foreach ( $dbresults as $meta ) {
            if ( $option_page ) {
                preg_match( '/^[^\d]*(\d+)/', $meta->option_name, $matches );
            } else {
                preg_match( '/^[^\d]*(\d+)/', $meta->meta_key, $matches );
            }

            if ( count( $matches ) < 2 ) {
                continue;
            }
            $i = intval( $matches[1] );

            if ( ! isset( $results[$i] ) ) {
                $results[$i] = [];
            }

            if ( $option_page ) {
                $results[$i][$meta->option_name] = (object) [
                    'meta_key'   => $meta->option_name,
                    'meta_value' => $meta->option_value
                ];
            } else {
                $results[$i][$meta->meta_key] = $meta;
            }
        }

        return $results;
    }

    /**
     * Get settings properties.
     *
     * @return array
     */
    protected function get_settings_properties() {
        $settings = $this->get_settings();

        if ( is_null( $settings ) ) {
            return [];
        }

        return $this->prepare_properties( papi_to_array( $settings->items ) );
    }

    /**
     * Render property html.
     */
    public function html() {
        $options = $this->get_options();

        // Reset list counter number.
        $this->counter = 0;

        // Fix so repeater is not render over the title and description.
        if ( $this->get_option( 'layout' ) === 'vertical' ) {
            echo '<br />';
        }

        // Render repeater html.
        $this->render_repeater( $options );

        // Render JSON template that is used for Papi ajax.
        $this->render_json_template( $options->slug );
    }

    /**
     * Import value to the property.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return array
     */
    public function import_value( $value, $slug, $post_id ) {
        if ( ! is_array( $value ) ) {
            return [];
        }

        // If the import value isn't array in array then fix it.
        $extras = array_filter( $value, function ( $value ) {
            return ! is_array( $value );
        } );

        if ( ! empty( $extras ) ) {
            $extra = [];

            foreach ( $extras as $key => $val ) {
                if ( isset( $value[$key] ) ) {
                    unset( $value[$key] );
                }

                $extra[$key] = $val;
            }

            $value[] = $extra;
        }

        return $this->update_value( $value, $slug, $post_id );
    }

    /**
     * Check if the given layout is the layouted used.
     *
     * @param  string $layout
     *
     * @return bool
     */
    protected function layout( $layout ) {
        return $this->get_setting( 'layout' ) === $layout;
    }

    /**
     * Change value after it's loaded from the database
     * and populate every property in the repeater with the right property type.
     *
     * @param int    $value
     * @param string $repeater_slug
     * @param int    $post_id
     *
     * @return array
     */
    public function load_value( $value, $repeater_slug, $post_id ) {
        if ( is_array( $value ) ) {
            return $value;
        }

        list( $results, $trash ) = $this->get_results( $value, $repeater_slug, $post_id );

        // Will not need this array.
        unset( $trash );

        $results = papi_from_property_array_slugs( $results, unpapify( $repeater_slug ) );

        if ( empty( $results ) ) {
            return $this->default_value;
        }

        return $this->load_child_properties( $results, $this );
    }

    /**
     * Load child properties.
     *
     * @param  array              $results
     * @param  Papi_Core_Property $property
     *
     * @return array
     */
    protected function load_child_properties( array $results, $property = null ) {
        foreach ( $results as $index => $row ) {
            foreach ( $row as $slug => $value ) {
                if ( is_array( $value ) && isset( $value[$slug] ) ) {
                    $child_property = $this->get_store()->get_property( $this->get_slug( true ), $slug );

                    if ( papi_is_property( $child_property ) && ! empty( $child_property->get_child_properties() ) ) {
                        $value = papi_from_property_array_slugs( $value, unpapify( $slug ) );
                        $results[$index][$slug] = $this->load_child_properties( $value, $child_property );
                    }
                }

                $type_key = papi_get_property_type_key_f( $slug );

                if ( $property->match_slug( $slug ) ) {
                    $results[$index][$type_key] = $property;
                } else {
                    $results[$index][$type_key] = $property->get_child_property( $slug );
                }
            }
        }

        return $results;
    }

    /**
     * Prepare properties, get properties options object,
     * check which properties that are allowed to use.
     *
     * @param  array $items
     *
     * @return array
     */
    protected function prepare_properties( $items ) {
        $key   = isset( $this->layout_key ) &&
            $this->layout_key === '_layout' ?  'flexible' : 'repeater';
        $items = array_map( 'papi_property', $items );

        $exclude_properties = $this->exclude_properties;
        $exclude_properties = array_merge(
            $exclude_properties,
            apply_filters( 'papi/property/' . $key . '/exclude', [] )
        );

        return array_filter( $items, function ( $item ) use ( $exclude_properties ) {
            if ( ! is_object( $item ) ) {
                return false;
            }

            if ( empty( $item->type ) ) {
                return false;
            }

            return ! in_array( $item->type, $exclude_properties );
        } );
    }

    /**
     * Prepare property for JSON.
     *
     * @param  Papi_Property $property
     *
     * @return bool|object
     */
    protected function prepare_property_for_json( $property ) {
        // Only real property objects and not properties that are disabled.
        if ( ! papi_is_property( $property ) || $property->disabled() ) {
            return false;
        }

        $options = clone $property->get_options();

        if ( isset( $options->settings->items ) ) {
            foreach ( $options->settings->items as $index => $property ) {
                if ( is_array( $property ) && isset( $property['items'] ) ) {
                    foreach ( $property['items'] as $child_index => $child_property ) {
                        $options->settings->items[$index]['items'][$child_index] = $this->prepare_property_for_json( $child_property );
                    }
                }

                if ( $property = $this->prepare_property_for_json( $property ) ) {
                    $options->settings->items[$index] = $property;
                }
            }
        }

        return $options;
    }

    /**
     * Remove all repeater rows from the database.
     *
     * @param int    $post_id
     * @param string $repeater_slug
     */
    protected function remove_repeater_rows( $post_id, $repeater_slug ) {
        global $wpdb;

        $option_page   = $this->is_option_page();
        $repeater_slug = $repeater_slug . '_%';

        if ( $option_page ) {
            $table = $wpdb->prefix . 'options';
            $sql   = "SELECT * FROM $table WHERE (`option_name` LIKE %s OR `option_name` LIKE %s AND NOT `option_name` = %s)";
            $query = $wpdb->prepare(
                $sql,
                $repeater_slug,
                papi_f( $repeater_slug ),
                papi_get_property_type_key_f( $repeater_slug )
            );
        } else {
            $table = $wpdb->prefix . 'postmeta';
            $sql   = "SELECT * FROM $table WHERE `post_id` = %d AND (`meta_key` LIKE %s OR `meta_key` LIKE %s AND NOT `meta_key` = %s)";
            $query = $wpdb->prepare(
                $sql,
                $post_id,
                $repeater_slug,
                papi_f( $repeater_slug ),
                papi_get_property_type_key_f( $repeater_slug )
            );
        }

        $results = $wpdb->get_results( $query );

        foreach ( $results as $res ) {
            if ( $option_page ) {
                $key = $res->option_name;
            } else {
                $key = $res->meta_key;
            }

            papi_delete_property_meta_value( $post_id, $key );
        }
    }

    /**
     * Render AJAX request.
     */
    public function render_ajax_request() {
        $items = $this->get_settings_properties();

        if ( papi_doing_ajax() ) {
            $counter = papi_get_qs( 'counter' );
            $this->counter = intval( $counter );
        }

        $this->render_properties( $items, false );
    }

    /**
     * Render property JSON template.
     *
     * @param string $slug
     */
    protected function render_json_template( $slug ) {
        $options = $this->get_options();

        $options->settings->items = papi_to_array( $options->settings->items );

        foreach ( $options->settings->items as $key => $value ) {
            $property = $this->prepare_property_for_json( papi_property( $value ) );

            if ( $property === false ) {
                unset( $options->settings->items[$key] );
                continue;
            }

            $options->settings->items[$key] = $property;
        }

        papi_render_html_tag( 'script', [
            'data-papi-json' => sprintf( '%s_repeater_json', $slug ),
            'type'           => 'application/json',
            json_encode( [$options] )
        ] );
    }

    /**
     * Render properties.
     *
     * @param array $row
     * @param array|bool $value
     */
    protected function render_properties( $row, $value ) {
        $layout = $this->get_setting( 'layout' );

        if ( $layout === 'row' ): ?>
        <td class="repeater-layout-row">
            <div class="repeater-content-open">
                <table class="papi-table">
                    <tbody>
        <?php endif;

        $has_value = $value !== false;

        foreach ( $row as $property ) {
            // Don't show the property if it's disabled.
            if ( $property->disabled() ) {
                continue;
            }

            $render_property = clone $property->get_options();
            $value_slug      = $property->get_slug( true );

            if ( $has_value ) {
                if ( array_key_exists( $value_slug, $value ) ) {
                    $render_property->value = $value[$value_slug];
                } else {
                    if ( array_key_exists( $property->get_slug(), $value ) ) {
                        $render_property->value = $property->default_value;
                    } else {
                        continue;
                    }
                }
            }

            $render_property->slug = $this->html_name( $property, $this->counter );
            $render_property->raw  = $layout === 'table';

            if ( $layout === 'table' ) {
                echo '<td class="repeater-column ' . ( $property->display() ? '' : 'papi-hide' ) . '">';
                    echo '<div class="repeater-content-open">';
                        echo sprintf(
                            '<label for="%s" class="papi-visually-hidden">%s</label>',
                            $this->html_id( $property, $this->counter ),
                            $property->title
                        );
            }

            papi_render_property( $render_property );

            if ( $layout === 'table' ) {
                    echo '</div>';
                echo '</td>';
            }
        }

        if ( $layout === 'row' ): ?>
                    </tbody>
                </table>
            </div>
        </td>
        <?php endif;
    }

    /**
     * Render repeater html.
     *
     * @param stdClass $options
     */
    protected function render_repeater( $options ) {
        ?>
        <div class="papi-property-repeater papi-property-repeater-top" data-limit="<?php echo $this->get_setting( 'limit' ); ?>">
            <table class="papi-table">
                <?php $this->render_repeater_head(); ?>

                <tbody class="repeater-tbody">
                    <?php $this->render_repeater_rows(); ?>
                </tbody>
            </table>

            <div class="bottom">
                <?php
                papi_render_html_tag( 'button', [
                    'class'          => 'button button-primary',
                    'data-papi-json' => sprintf( '%s_repeater_json', $options->slug ),
                    'type'           => 'button',
                    esc_html( $this->get_setting( 'add_new_label' ) )
                ] );
                ?>
            </div>

            <?php /* Default repeater value */ ?>

            <input type="hidden" data-papi-rule="<?php echo $options->slug; ?>" name="<?php echo $options->slug; ?>[]" />
        </div>
        <?php
    }

    /**
     * Render repeater head.
     */
    protected function render_repeater_head() {
        $properties = $this->get_settings_properties();
        ?>
        <thead>
            <?php if ( ! $this->layout( 'row' ) ): ?>
            <tr>
                <th></th>
                <?php
                foreach ( $properties as $property ):
                    // Don't show the property if it's disabled.
                    if ( $property->disabled() ) {
                        continue;
                    }
                ?>
                    <th class="repeater-column <?php echo $property->display() ? '' : 'papi-hide'; ?>">
                        <?php echo $property->title; ?>
                    </th>
                <?php endforeach; ?>
                <th class="last"></th>
            </tr>
            <?php endif; ?>
        </thead>
        <?php
    }

    /**
     * Render repeater rows.
     */
    protected function render_repeater_rows() {
        $items  = $this->get_settings_properties();
        $values = $this->get_value();
        $values = is_array( $values ) ? $values : [];
        $slugs  = wp_list_pluck( $items, 'slug' );

        // Remove values that don't exists in the slugs array.
        foreach ( $values as $index => $value ) {
            $keys = array_keys( $value );

            foreach ( $slugs as $slug ) {
                if ( in_array( $slug, $keys ) ) {
                    continue;
                }

                $values[$index][$slug] = '';
            }
        }

        $values = array_filter( $values );
        $closed_rows = $this->get_setting( 'closed_rows', true );

        foreach ( $values as $row ):
            ?>
            <tr <?php echo $closed_rows ? 'class="closed"' : ''; ?>>
                <td class="handle">
                    <span class="toggle"></span>
                    <span class="count"><?php echo $this->counter + 1; ?></span>
                </td>
                <?php
                    $this->render_properties( $items, $row );
                    $this->counter++;
                ?>
                <td class="last">
                    <span>
                        <a title="<?php _e( 'Remove', 'papi' ); ?>" href="#" class="repeater-remove-item">x</a>
                    </span>
                </td>
            </tr>
            <?php
        endforeach;
    }

    /**
     * Render repeater row template.
     */
    public function render_repeater_rows_template() {
        ?>
        <script type="text/template" id="tmpl-papi-property-repeater-row">
            <tr>
                <td class="handle">
                    <span class="toggle"></span>
                    <span class="count"><%= counter + 1 %></span>
                </td>
                <%= columns %>
                <td class="last">
                    <span>
                        <a title="<?php _e( 'Remove', 'papi' ); ?>" href="#" class="repeater-remove-item">x</a>
                    </span>
                </td>
            </tr>
        </script>
        <?php
    }

    /**
     * Setup actions.
     */
    protected function setup_actions() {
        add_action( 'admin_head', [$this, 'render_repeater_rows_template'] );
    }

    /**
     * Update value before it's saved to the database.
     *
     * @param mixed  $values
     * @param string $repeater_slug
     * @param int    $post_id
     *
     * @return array
     */
    public function update_value( $values, $repeater_slug, $post_id ) {
        $rows = intval( papi_get_property_meta_value(
            $post_id,
            $repeater_slug
        ) );

        if ( ! is_array( $values ) ) {
            $values = [];
        }

        list( $results, $trash ) = $this->get_results( $rows, $repeater_slug, $post_id );

        // Delete trash values.
        foreach ( $trash as $meta ) {
            papi_delete_property_meta_value( $post_id, $meta->meta_key );
        }

        $values = papi_to_property_array_slugs( $values, $repeater_slug );

        foreach ( $values as $slug => $value ) {
            if ( papi_is_property_type_key( $slug ) ) {
                continue;
            }

            $property_type_slug = papi_get_property_type_key_f( $slug );

            if ( ! isset( $values[$property_type_slug] ) ) {
                continue;
            }

            // Get real property slug
            $property_slug = $this->get_child_slug( $repeater_slug, $slug );

            // Get property type
            $property_type_value = $values[$property_type_slug]->type;
            $property_type = papi_get_property_type( $property_type_value );

            if ( ! is_object( $property_type ) ) {
                continue;
            }

            // Unserialize if needed.
            $value = papi_maybe_json_decode(
                maybe_unserialize( $value )
            );

            // Run update value on each property type class.
            $value = $property_type->update_value(
                $value,
                $property_slug,
                $post_id
            );

            // Run update value on each property type filter.
            $values[$slug] = papi_filter_update_value(
                $property_type_value,
                $value,
                $property_slug,
                $post_id,
                papi_get_meta_type()
            );

            if ( is_array( $values[$slug] ) ) {
                foreach ( $values[$slug] as $key => $val ) {
                    if ( ! is_string( $key ) ) {
                        continue;
                    }

                    unset( $values[$slug][$key] );
                    $key = preg_replace( '/^\_/', '', $key );
                    $values[$slug][$key] = $val;
                }
            }
        }

        // Find out which keys that should be deleted.
        $trash = array_diff(
            array_keys( papi_to_array( $results ) ),
            array_keys( papi_to_array( $values ) )
        );

        // Delete unwanted (trash) values.
        foreach ( array_keys( $trash ) as $trash_key ) {
            papi_delete_property_meta_value( $post_id, $trash_key );
        }

        // It's safe to remove all rows in the database here.
        $this->remove_repeater_rows( $post_id, $repeater_slug );

        // Remove unnecessary property type keys if any is left.
        foreach ( array_keys( $values ) as $slug ) {
            if ( papi_is_property_type_key( $slug ) ) {
                unset( $values[$slug] );
            }
        }

        return $values;
    }
}

Classes

Functions