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

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<?php

/**
 * WordPress link manager property.
 */
class Papi_Property_Link extends Papi_Property {

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

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

    /**
     * Link fields.
     *
     * @var array
     */
    protected $link_fields = [
        'post_id',
        'url',
        'title',
        'target'
    ];

    /**
     * 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 ) {
        $values = $this->load_value( null, $slug, $post_id );
        $values = is_object( $values ) ? (array) $values : $values;
        $result = true;

        foreach ( array_keys( $values ) as $key ) {
            $out    = papi_delete_property_meta_value( $post_id, $slug . '_' . $key );
            $result = $out ? $result : $out;
        }

        if ( $result ) {
            $result = papi_delete_property_meta_value( $post_id, $slug );
        }

        return $result;
    }

    /**
     * Format the value of the property before it's returned
     * to WordPress admin or the site.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return mixed
     */
    public function format_value( $value, $slug, $post_id ) {
        return (object) $this->prepare_link_array( $value, $slug );
    }

    /**
     * Get default settings.
     *
     * @return array
     */
    public function get_default_settings() {
        return [];
    }

    /**
     * Load value from database.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return array
     */
    public function load_value( $value, $slug, $post_id ) {
        if ( is_array( $value ) || is_object( $value ) ) {
            $values = $value;
        } else {
            $values = $this->link_fields;

            foreach ( $values as $index => $key ) {
                $values[$key] = papi_get_property_meta_value(
                    $post_id,
                    sprintf( '%s_%s', $slug, $key ),
                    $this->get_meta_type()
                );
                unset( $values[$index] );
            }
        }

        return (object) $this->prepare_link_array( $values, $slug );
    }

    /**
     * Render property html.
     */
    public function html() {
        $value  = $this->get_value();
        $value  = is_array( $value ) || is_object( $value ) ? $value : [];
        $value  = (object) $value;
        $exists = ! empty( $value->url );
        ?>
        <div class="papi-property-link" data-replace-slug="true" data-slug="<?php echo $this->html_name(); ?>">
            <input type="hidden" name="<?php echo $this->html_name(); ?>" value="<?php echo $exists ? 1 : ''; ?>">

            <?php if ( $exists ): ?>
                <table class="papi-table link-table">
                    <tbody>
                        <tr>
                            <td><?php _e( 'URL', 'papi' ); ?></td>
                            <td>
                                <a href="<?php echo $value->url; ?>" target="_blank"><?php echo $value->url; ?></a>
                                <input type="hidden" value="<?php echo $value->title . ' - ' . $value->url; ?>" data-papi-rule="<?php echo $this->html_name(); ?>">
                                <input class="wp-link-url" type="hidden" value="<?php echo $value->url; ?>" name="<?php echo $this->html_name(); ?>[url]">
                            </td>
                        </tr>
                        <tr>
                            <td><?php _e( 'Title', 'papi' ); ?></td>
                            <td>
                                <?php echo $value->title; ?>
                                <input class="wp-link-text" type="hidden" value="<?php echo $value->title; ?>" name="<?php echo $this->html_name(); ?>[title]">
                            </td>
                        </tr>
                        <tr>
                            <td><?php _e( 'Target', 'papi' ); ?></td>
                            <td>
                                <?php echo $value->target === '_blank' ? __( 'New window', 'papi' ) : __( 'Same window', 'papi' ); ?>
                                <input class="wp-link-target" type="hidden" value="<?php echo $value->target; ?>" name="<?php echo $this->html_name(); ?>[target]">
                            </td>
                        </tr>
                    </tbody>
                </table>
            <?php endif; ?>

            <p class="papi-file-select">
                <span class="<?php echo empty( $value->url ) ? '' : 'papi-hide'; ?>">
                    <?php _e( 'No link selected', 'papi' ); ?>
                    <button class="button" data-link-action="add"><?php _e( 'Add link', 'papi' ); ?></button>
                </span>
                <span class="<?php echo empty( $value->url ) ? 'papi-hide' : ''; ?>">
                    <button class="button" data-link-action="edit"><?php _e( 'Edit link', 'papi' ); ?></button>
                    <button class="button" data-link-action="remove"><?php _e( 'Remove link', 'papi' ); ?></button>
                </span>
            </p>
        </div>
        <?php
    }

    /**
     * Import value to the property.
     *
     * @param  mixed  $value
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return mixed
     */
    public function import_value( $value, $slug, $post_id ) {
        if ( is_array( $value ) || is_object( $value ) ) {
            return $this->update_value( (array) $value, $slug, $post_id );
        }
    }

    /**
     * Prepare link array with post id. If it gets a post id
     * bigger then zero it will use the permalink as url.
     *
     * @param  array|object $link
     * @param  string       $slug
     *
     * @return array|object
     */
    protected function prepare_link_array( $link, $slug ) {
        $array  = is_array( $link );
        $values = (array) $link;

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

        $link = (object) $values;

        // Don't continue without a url.
        if ( ! isset( $link->url ) || empty( $link->url ) ) {
            return $array ? (array) $link : $link;
        }

        // Don't overwrite existing post id.
        if ( ! isset( $link->post_id ) || empty( $link->post_id ) ) {
            $link->post_id = url_to_postid( $link->url );
        }

        // Only replace url when post id is not zero.
        if ( $link->post_id > 0 ) {
            $link->url = get_permalink( $link->post_id );
        }

        // If empty target set `_self` as default target.
        if ( empty( $link->target ) ) {
            $link->target = '_self';
        }

        // Remove slug if it exists.
        if ( isset( $link->$slug ) && is_numeric( $link->$slug ) ) {
            unset( $link->$slug );
        }

        return $array ? (array) $link : $link;
    }

    /**
     * Render link template.
     */
    public function render_link_template() {
        ?>
        <script type="text/template" id="tmpl-papi-property-link">
            <table class="papi-table link-table">
                <tbody>
                    <tr>
                        <td>
                            <?php _e( 'URL', 'papi' ); ?>
                        </td>
                        <td>
                            <%= link %>
                            <input type="hidden" value="<%= title %> - <%= href %>" data-papi-rule="<%= slug %>">
                            <input class="wp-link-url" type="hidden" value="<%= href %>" name="<%= slug %>[url]">
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <?php _e( 'Title', 'papi' ); ?>
                        </td>
                        <td>
                            <%= title %>
                            <input class="wp-link-text" type="hidden" value="<%= title %>" name="<%= slug %>[title]">
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <?php _e( 'Target', 'papi' ); ?>
                        </td>
                        <td>
                            <input class="wp-link-target" type="hidden" value="<%= target %>" name="<%= slug %>[target]">
                            <%= target === '_blank' ? '<?php _e( 'New window', 'papi' ) ?>' : '<?php _e( 'Same window', 'papi' ); ?>' %>
                        </td>
                    </tr>
                </tbody>
            </table>
        </script>
        <?php
    }

    /**
     * Prepare value for the database.
     *
     * @param  mixed  $values
     * @param  string $slug
     * @param  int    $post_id
     *
     * @return array
     */
    public function update_value( $values, $slug, $post_id ) {
        if ( ! isset( $values['url'] ) ) {
            $values = $this->link_fields;

            foreach ( $values as $index => $key ) {
                $values[sprintf( '%s_%s', $slug, $key )] = '';
                unset( $values[$index] );
            }

            // Delete the required field.
            $values[$slug] = '';

            return $values;
        }

        // If a url exists we can continue making the meta fields
        // that should be saved.
        $values = $this->prepare_link_array( $values, $slug );

        foreach ( $values as $key => $val ) {
            $values[sprintf( '%s_%s', $slug, $key )] = $val;
            unset( $values[$key] );
        }

        // Required field so Papi can load a value from the
        // original property slug.
        $values[$slug] = 1;

        return $values;
    }

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

Classes

Functions