Buddypress Group Content

<?php
// Check that BP_Group_Extension Class Exists
if( class_exists( 'BP_Group_Extension' ) ) {
    class Buddypress_Groups_Custom_Meta extends BP_Group_Extension {

        public function __construct() {
            $this->setup_hooks();
        }

        private function setup_hooks() {
            // Add new Metabox for XLSuite Fields (ID & Updated At)
            add_action( 'bp_groups_admin_meta_boxes', array( $this, 'bp_groups_admin_meta_boxes' ) );

            // Store Group Meta after Admin Save
            add_action( 'bp_group_admin_edit_after',  array( $this, 'bp_group_admin_content_edit_after'), 10, 1 );
        }

        /**
         * Register a new Metabox in Group Admin UI's Edit Group Panel
         * Create Meta Box for Content Editor
         * Create Meta Box for XLSuite ID and XLSuite Updated At
         * @uses add_meta_box() to register our meta box
         */
        public function bp_groups_admin_meta_boxes() {
            add_meta_box(
                'bp_groups_metabox_content',
                __( 'Group Information', 'wplms_customizer' ),
                array( &$this, 'bp_groups_admin_info_metabox'),
                get_current_screen()->id,
                'normal',
                'high'
            );
        }

        /**
         * Display the Content Metabox and Field
         * @param  BP_Groups_Group $item the group being edited
         * @uses   groups_get_groupmeta() to get the featured attribute of the group
         * @uses   checked() to eventually add a checked attribute if the group is featured
         * @uses   wp_nonce_field() for security reasons
         */
        public function bp_groups_admin_info_metabox( $group = false ) {
            if( empty( $group ) )
                return;
            $prefix = 'bp_group_';
            // Set-up Custom Fields to Create
            $custom_fields = array();
            $custom_fields[] = array(
                'label'     => __('Group Content','wplms-customizer'),
                'desc'      => __('The Group Content Editor.','wplms-customizer'),
                'id'        => $prefix.'content_editor',
                'type'      => 'editor'
            );
            ?>
            <table class="form-table meta_box">
                <tbody>
                    <?php
                        foreach ( $custom_fields as $custom_field ) {
                            $custom_field_value = groups_get_groupmeta( $group->id, $custom_field['id'] );
                            if ( $custom_field['type'] == 'editor' ) { ?>
                                <tr>
                                    <th>
                                        <label for="<?php echo $custom_field['id']; ?>"><?php echo $custom_field['label']; ?></label>
                                    </th>
                                    <td>
                                        <?php wp_editor( $custom_field_value, $custom_field['id'] , array(
                                            'wpautop'       => true,
                                            'media_buttons' => true,
                                            'teeny'         => true,
                                            'textarea_rows' => '4',
                                            'textarea_cols' => '30',
                                            'tinymce'       => array(
                                                'theme_advanced_buttons1'        => 'save,newdocument,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,|,cut,copy,paste,pastetext,pasteword,',
                                                'theme_advanced_buttons2'       => "styleselect,formatselect,fontselect,fontsizeselect,",
                                                'theme_advanced_buttons3'       => ",bullist,numlist,|,outdent,indent,blockquote,|,link,anchor,image,|,insertdate,forecolor,backcolor,|,tablecontrols,|,hr,|,fullscreen",
                                                'theme_advanced_buttons4'       => "",
                                                'theme_advanced_text_colors'    => '0f3156,636466,0486d3',
                                            ),
                                            'quicktags'     => array(
                                                'buttons'   => 'strong,em,link,block,del,ins,img,code,ul,ol,li,close'
                                            )
                                        ) ); ?>
                                        <span class="description"><?php echo $custom_field['desc']; ?></span>
                                    </td>
                                </tr>
                            <?php
                            } else {
                            ?>
                                <tr>
                                    <th>
                                        <label for="<?php echo $custom_field['id']; ?>"><?php echo $custom_field['label']; ?></label>
                                    </th>
                                    <td>
                                        <input id="<?php echo $custom_field['id']; ?>" type="<?php echo $custom_field['type']; ?>" name="<?php echo $custom_field['id']; ?>" value="<?php echo $custom_field_value; ?>" size="20" />
                                        <span class="description"><?php echo $custom_field['desc']; ?></span>
                                    </td>
                                </tr>
                            <?php
                            }
                        }
                    ?>
                </tbody>
            </table>
            <?php
            wp_nonce_field( 'bp_group_content_save_' . $group->id, 'bp_group_content_admin' );
        }

        /**
         * Saves the Content Field
         * @param  integer $group_id the group id for the group being edited
         * @uses   check_admin_referer() for security reasons
         * @uses   groups_get_groupmeta() to get the existing group meta
         * @uses   groups_update_groupmeta() to update the group meta
         * @uses   groups_delete_groupmeta() to remove the group meta if empty
         */
        function bp_group_admin_content_edit_after( $group_id = 0 ) {
            if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) || empty( $group_id ) )
                return false;

            check_admin_referer('bp_group_content_save_' . $group_id, 'bp_group_content_admin')

            $content = groups_get_groupmeta( $group_id, 'bp_group_content_editor' );
            $new_content = '';
            if ( array_key_exists( 'bp_group_content_editor', $_POST ) && isset( $_POST['bp_group_content_editor'] ) && ! empty( trim( $_POST['bp_group_content_editor'] ) ) ) {
                $new_content = $_POST['bp_group_content_editor'];
            }
            if( ! empty( $new_content ) ) {
                groups_update_groupmeta($group_id, 'bp_group_content_editor', $new_content);
            } elseif ( ! empty( $content ) ) {
                groups_delete_groupmeta($group_id, 'bp_group_content_editor');
            }

        }

    }

    /**
     * Initalize the Buddypress_Groups_Custom_Meta Class
     *
     * @since     1.0.0
     * @uses bp_is_active([component]) to check the group component is active
     */
    function buddypress_groups_custom_meta() {
        if(bp_is_active('groups')) {
            return new Buddypress_Groups_Custom_Meta();
        }
    }

    add_action('bp_init', 'buddypress_groups_custom_meta');
}