# groups/1.10.0/lib/admin/groups-admin-capabilities-edit.php

Groups – Memberships and Access Control, version 1.10.0. 135 lines.

- Page: https://pluginprobe.com/plugins/groups/1.10.0/code/lib/admin/groups-admin-capabilities-edit.php
- Raw: https://pluginprobe.com/plugins/groups/1.10.0/raw/lib/admin/groups-admin-capabilities-edit.php
- Modified: 2016-01-25T19:52:10+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/groups/1.10.0/code/lib/admin/groups-admin-capabilities-edit.php#L10-L20`.

```php
<?php
/**
 * groups-admin-capability-edit.php
 *
 * Copyright (c) "kento" Karim Rahimpur www.itthinx.com
 *
 * This code is released under the GNU General Public License.
 * See COPYRIGHT.txt and LICENSE.txt.
 *
 * This code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * This header and all notices must be kept intact.
 *
 * @author Karim Rahimpur
 * @package groups
 * @since groups 1.0.0
 */

if ( !defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Show edit capability form.
 * @param int $capability_id capability id
 */
function groups_admin_capabilities_edit( $capability_id ) {

	global $wpdb;

	if ( !current_user_can( GROUPS_ADMINISTER_GROUPS ) ) {
		wp_die( __( 'Access denied.', GROUPS_PLUGIN_DOMAIN ) );
	}

	$capability = Groups_Capability::read( intval( $capability_id ) );

	if ( empty( $capability ) ) {
		wp_die( __( 'No such capability.', GROUPS_PLUGIN_DOMAIN ) );
	}

	$current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
	$current_url = remove_query_arg( 'action', $current_url );
	$current_url = remove_query_arg( 'capability_id', $current_url );

	$capability_capability  = isset( $_POST['capability-field'] ) ? $_POST['capability-field'] : $capability->capability;
	$description = isset( $_POST['description-field'] ) ? $_POST['description-field'] : $capability->description;

	$capability_readonly = ( $capability->capability !== Groups_Post_Access::READ_POST_CAPABILITY ) ? "" : ' readonly="readonly" ';

	$output =
		'<div class="manage-capabilities wrap">' .
			'<h1>' .
				__( 'Edit a capability', GROUPS_PLUGIN_DOMAIN ) .
			'</h1>' .

		Groups_Admin::render_messages() .

		'<form id="edit-capability" action="' . esc_url( $current_url ) . '" method="post">' .
		'<div class="capability edit">' .
		'<input id="capability-id-field" name="capability-id-field" type="hidden" value="' . esc_attr( intval( $capability_id ) ) . '"/>' .

		'<div class="field">' .
		'<label for="capability-field" class="field-label first required">' .__( 'Capability', GROUPS_PLUGIN_DOMAIN ) . '</label>' .
		'<input ' . $capability_readonly . ' id="capability-field" name="capability-field" class="capability-field" type="text" value="' . esc_attr( stripslashes( $capability_capability ) ) . '"/>' .
		'</div>' .

		'<div class="field">' .
		'<label for="description-field" class="field-label description-field">' .__( 'Description', GROUPS_PLUGIN_DOMAIN ) . '</label>' .
		'<textarea id="description-field" name="description-field" rows="5" cols="45">' . stripslashes( wp_filter_nohtml_kses( $description ) ) . '</textarea>' .
		'</div>' .

		'<div class="field">' .
		wp_nonce_field( 'capabilities-edit', GROUPS_ADMIN_GROUPS_NONCE, true, false ) .
		'<input class="button button-primary" type="submit" value="' . __( 'Save', GROUPS_PLUGIN_DOMAIN ) . '"/>' .
		'<input type="hidden" value="edit" name="action"/>' .
		'<a class="cancel button" href="' . esc_url( $current_url ) . '">' . __( 'Cancel', GROUPS_PLUGIN_DOMAIN ) . '</a>' .
		'</div>' .
		'</div>' . // .capability.edit
		'</form>' .
		'</div>'; // .manage-capabilities

		echo $output;
} // function groups_admin_capabilities_edit

/**
 * Handle edit form submission.
 */
function groups_admin_capabilities_edit_submit() {

	$result = false;

	if ( !current_user_can( GROUPS_ADMINISTER_GROUPS ) ) {
		wp_die( __( 'Access denied.', GROUPS_PLUGIN_DOMAIN ) );
	}

	if ( !wp_verify_nonce( $_POST[GROUPS_ADMIN_GROUPS_NONCE],  'capabilities-edit' ) ) {
		wp_die( __( 'Access denied.', GROUPS_PLUGIN_DOMAIN ) );
	}

	$capability_id = isset( $_POST['capability-id-field'] ) ? $_POST['capability-id-field'] : null;
	$capability = Groups_Capability::read( $capability_id );
	if ( $capability ) {
		$capability_id	= $capability->capability_id;
		if ( $capability->capability !== Groups_Post_Access::READ_POST_CAPABILITY ) {
			$capability_field = isset( $_POST['capability-field'] ) ? $_POST['capability-field'] : null;
		} else {
			$capability_field = Groups_Post_Access::READ_POST_CAPABILITY;
		}
		if ( !empty( $capability_field ) ) {
			$update = true;
			if ( $other_capability = Groups_Capability::read_by_capability( $capability_field ) ) {
				if ( $other_capability->capability_id != $capability_id ) {
					Groups_Admin::add_message( sprintf( __( 'The <em>%s</em> capability already exists and cannot be assigned to this one.', GROUPS_PLUGIN_DOMAIN ), stripslashes( wp_filter_nohtml_kses( $other_capability->capability ) ) ), 'error' );
					$update = false;
				}
			}
			if ( $update ) {
				$description = isset( $_POST['description-field'] ) ? $_POST['description-field'] : '';
				$capability_id = Groups_Capability::update( array( 'capability_id' => $capability_id, 'capability' => $capability_field, 'description' => $description ) );
				if ( $capability_id ) {
					$result = $capability_id;
				} else {
					Groups_Admin::add_message( sprintf( __( 'The <em>%s</em> capability could not be updated.', GROUPS_PLUGIN_DOMAIN ), stripslashes( wp_filter_nohtml_kses( $capability ) ) ), 'error' );
				}
			}
		} else {
			Groups_Admin::add_message( __( 'The <em>Capability</em> must not be empty.', GROUPS_PLUGIN_DOMAIN ), 'error' );
		}
	}
	return $result;
} // function groups_admin_capabilities_edit_submit

```