redirect attribute. * * @param array $atts * @param string $content * @return string the rendered form or empty */ public static function groups_login( $atts, $content = null ) { $current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; extract( shortcode_atts( array( 'redirect' => $current_url, 'show_logout' => 'no' ), $atts ) ); $redirect = trim( $redirect ); $show_logout = trim( strtolower( $show_logout ) ); $output = ''; if ( !is_user_logged_in() ) { $output .= wp_login_form( array( 'echo' => false, 'redirect' => $redirect ) ); } else { if ( $show_logout == 'yes' ) { $output .= self::groups_logout( array( 'redirect' => $redirect ) ); } } return $output; } /** * Renders the Groups logout link. * * The link is rendered if the user is logged in. * The user is redirected to the current page after logout by default. * The user can be redirected to a specific URL after logout by * indicating the redirect attribute. * * @param array $atts * @param string $content not used * @return string logout link, is empty if not logged in */ public static function groups_logout( $atts, $content = null ) { $current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; extract( shortcode_atts( array( 'redirect' => $current_url ), $atts ) ); $redirect = trim( $redirect ); $output = ''; if ( is_user_logged_in() ) { $output .= sprintf( '', esc_url( wp_logout_url( $redirect ) ) ); $output .= __( 'Log out', GROUPS_PLUGIN_DOMAIN ); $output .= ''; } return $output; } /** * Renders information about a group. * Attributes: * - "group" : group name or id * - "show" : what to show, can be "name", "description", "count" * - "format" : * - "single" : used with show="count", single form, defaults to '1' * - "plural" : used with show="count", plural form, defaults to '%d', must contain %d to show number * * @param array $atts attributes * @param string $content content to render * @return rendered information */ public static function groups_group_info( $atts, $content = null ) { global $wpdb; $output = ""; $options = shortcode_atts( array( 'group' => '', 'show' => '', 'format' => '', 'single' => '1', 'plural' => '%d' ), $atts ); $group = trim( $options['group'] ); $current_group = Groups_Group::read( $group ); if ( !$current_group ) { $current_group = Groups_Group::read_by_name( $group ); } if ( $current_group ) { switch( $options['show'] ) { case 'name' : $output .= wp_filter_nohtml_kses( $current_group->name ); break; case 'description' : $output .= wp_filter_nohtml_kses( $current_group->description ); break; case 'count' : $user_group_table = _groups_get_tablename( "user_group" ); $count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $user_group_table WHERE group_id = %d", Groups_Utility::id( $current_group->group_id ) ) ); if ( $count === null ) { $count = 0; } else { $count = intval( $count ); } $output .= _n( $options['single'], sprintf( $options['plural'], $count ), $count, GROUPS_PLUGIN_DOMAIN ); break; // @todo experimental - could use pagination, sorting, link to profile, ... case 'users' : $user_group_table = _groups_get_tablename( "user_group" ); $users = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->users LEFT JOIN $user_group_table ON $wpdb->users.ID = $user_group_table.user_id WHERE $user_group_table.group_id = %d", Groups_Utility::id( $current_group->group_id ) ) ); if ( $users ) { $output .= '

' . wp_filter_nohtml_kses( $user->user_login ) . '

'; } break; } } return $output; } /** * Renders the current or a specific user's groups. * Attributes: * - "user_id" OR "user_login" OR "user_email" to identify the user, if none given assumes the current user * - "format" : one of "list" "div" "ul" or "ol" - "list" and "ul" are equivalent * - "list_class" : defaults to "groups" * - "item_class" : defaults to "name" * - "order_by" : defaults to "name", also accepts "group_id" * - "order" : default to "ASC", also accepts "asc", "desc" and "DESC" * * @param array $atts attributes * @param string $content not used * @return rendered groups for current user */ public static function groups_user_groups( $atts, $content = null ) { $output = ""; $options = shortcode_atts( array( 'user_id' => null, 'user_login' => null, 'user_email' => null, 'format' => 'list', 'list_class' => 'groups', 'item_class' => 'name', 'order_by' => 'name', 'order' => 'ASC', 'group' => null, 'exclude_group' => null ), $atts ); $user_id = null; if ( $options['user_id'] !== null ) { if ( $user = get_user_by( 'id', $options['user_id'] ) ) { $user_id = $user->ID; } } else if ( $options['user_id'] !== null ) { if ( $user = get_user_by( 'login', $options['user_login'] ) ) { $user_id = $user->ID; } } else if ( $options['user_email'] !== null ) { if ( $user = get_user_by( 'email', $options['user_login'] ) ) { $user_id = $user->ID; } } if ( $user_id === null ) { $user_id = get_current_user_id(); } if ( $user_id !== null ) { $user = new Groups_User( $user_id ); $groups = $user->groups; if ( !empty( $groups ) ) { // group attr if ( $options['group'] !== null ) { $groups = array(); $groups_incl = explode( ",", $options['group'] ); foreach ( $groups_incl as $group_incl ) { $group = trim( $group_incl ); $current_group = Groups_Group::read( $group ); if ( !$current_group ) { $current_group = Groups_Group::read_by_name( $group ); } if ( $current_group ) { if ( Groups_User_Group::read( $user_id, $current_group->group_id ) ) { $groups[] = $current_group; } } } } // exclude_group attr if ( $options['exclude_group'] !== null ) { $groups_excl = explode( ",", $options['exclude_group'] ); foreach ( $groups_excl as $key => $group_excl ) { $group = trim( $group_excl ); $current_group = Groups_Group::read( $group ); if ( !$current_group ) { $current_group = Groups_Group::read_by_name( $group ); } if ( $current_group ) { $groups_excl[$key] = $current_group->group_id; } else { unset( $groups_excl[$key] ); } } foreach ( $groups as $key => $group ) { if ( in_array( $group->group_id, $groups_excl ) ) { unset( $groups[$key] ); } } } switch( $options['order_by'] ) { case 'group_id' : usort( $groups, array( __CLASS__, 'sort_id' ) ); break; default : usort( $groups, array( __CLASS__, 'sort_name' ) ); } switch( $options['order'] ) { case 'desc' : case 'DESC' : $groups = array_reverse( $groups ); break; } switch( $options['format'] ) { case 'list' : case 'ul' : $output .= '

'; } foreach( $groups as $group ) { switch( $options['format'] ) { case 'list' : case 'ul' : case 'ol' : $output .= '

' . $group->name . '

'; break; default : $output .= '

' . $group->name . '

'; } } switch( $options['format'] ) { case 'list' : case 'ul' : $output .= '

'; break; case 'ol' : $output .= ''; break; default : $output .= ''; } } } return $output; } /** * Group comparison by group_id. * * @param Groups_Group $a * @param Groups_Group $b * @return int */ public static function sort_id( $a, $b ) { return $a->group_id - $b->group_id; } /** * Group comparison by name. * * @param Groups_Group $a * @param Groups_Group $b * @return int */ public static function sort_name( $a, $b ) { return strcmp( $a->name, $b->name ); } /** * Renders a list of the site's groups. * Attributes: * - "format" : one of "list" "div" "ul" or "ol" - "list" and "ul" are equivalent * - "list_class" : defaults to "groups" * - "item_class" : defaults to "name" * - "order_by" : defaults to "name", also accepts "group_id" * - "order" : default to "ASC", also accepts "asc", "desc" and "DESC" * * @param array $atts attributes * @param string $content not used * @return rendered groups */ public static function groups_groups( $atts, $content = null ) { global $wpdb; $output = ""; $options = shortcode_atts( array( 'format' => 'list', 'list_class' => 'groups', 'item_class' => 'name', 'order_by' => 'name', 'order' => 'ASC' ), $atts ); switch( $options['order_by'] ) { case 'group_id' : case 'name' : $order_by = $options['order_by']; break; default : $order_by = 'name'; } switch( $options['order'] ) { case 'asc' : case 'ASC' : case 'desc' : case 'DESC' : $order = strtoupper( $options['order'] ); break; default : $order = 'ASC'; } $group_table = _groups_get_tablename( "group" ); if ( $groups = $wpdb->get_results( "SELECT group_id FROM $group_table ORDER BY $order_by $order" ) ) { switch( $options['format'] ) { case 'list' : case 'ul' : $output .= '

'; } foreach( $groups as $group ) { $group = new Groups_Group( $group->group_id ); switch( $options['format'] ) { case 'list' : case 'ul' : case 'ol' : $output .= '

' . $group->name . '

'; break; default : $output .= '

' . $group->name . '

'; } } switch( $options['format'] ) { case 'list' : case 'ul' : $output .= '

'; break; case 'ol' : $output .= ''; break; default : $output .= ''; } } return $output; } /** * Renders a form that lets a user join a group. * * Attributes: * - "group" : (required) group name or id * * @param array $atts attributes * @param string $content not used */ public static function groups_join( $atts, $content = null ) { $nonce_action = 'groups_action'; $nonce = 'nonce_join'; $output = ""; $options = shortcode_atts( array( 'group' => '', 'display_message' => true, 'display_is_member' => false, 'submit_text' => __( 'Join the %s group', GROUPS_PLUGIN_DOMAIN ) ), $atts ); extract( $options ); if ( $display_message === 'false' ) { $display_message = false; } if ( $display_is_member === 'true' ) { $display_is_member = true; } $group = trim( $options['group'] ); $current_group = Groups_Group::read( $group ); if ( !$current_group ) { $current_group = Groups_Group::read_by_name( $group ); } if ( $current_group ) { if ( $user_id = get_current_user_id() ) { $submitted = false; $invalid_nonce = false; if ( !empty( $_POST['groups_action'] ) && $_POST['groups_action'] == 'join' ) { $submitted = true; if ( !wp_verify_nonce( $_POST[$nonce], $nonce_action ) ) { $invalid_nonce = true; } } if ( $submitted && !$invalid_nonce ) { // add user to group if ( isset( $_POST['group_id'] ) ) { $join_group = Groups_Group::read( $_POST['group_id'] ); Groups_User_Group::create( array( 'group_id' => $join_group->group_id, 'user_id' => $user_id ) ); } } if ( !Groups_User_Group::read( $user_id, $current_group->group_id ) ) { $submit_text = sprintf( $options['submit_text'], wp_filter_nohtml_kses( $current_group->name ) ); $output .= '

'; $output .= ''; $output .= '

'; } else if ( $display_message ) { if ( $submitted && !$invalid_nonce && isset( $join_group ) && $join_group->group_id === $current_group->group_id ) { $output .= '

'; $output .= sprintf( __( 'You have joined the %s group.', GROUPS_PLUGIN_DOMAIN ), wp_filter_nohtml_kses( $join_group->name ) ); $output .= '

'; } else if ( $display_is_member && isset( $current_group ) && $current_group !== false ) { $output .= '

'; $output .= sprintf( __( 'You are a member of the %s group.', GROUPS_PLUGIN_DOMAIN ), wp_filter_nohtml_kses( $current_group->name ) ); $output .= '

'; } } } } return $output; } /** * Renders a form that lets a user leave a group. * * Attributes: * - "group" : (required) group name or id * * @param array $atts attributes * @param string $content not used */ public static function groups_leave( $atts, $content = null ) { $nonce_action = 'groups_action'; $nonce = 'nonce_leave'; $output = ""; $options = shortcode_atts( array( 'group' => '', 'display_message' => true, 'submit_text' => __( 'Leave the %s group', GROUPS_PLUGIN_DOMAIN ), ), $atts ); extract( $options ); if ( $display_message === 'false' ) { $display_message = false; } $group = trim( $options['group'] ); $current_group = Groups_Group::read( $group ); if ( !$current_group ) { $current_group = Groups_Group::read_by_name( $group ); } if ( $current_group ) { if ( $user_id = get_current_user_id() ) { $submitted = false; $invalid_nonce = false; if ( !empty( $_POST['groups_action'] ) && $_POST['groups_action'] == 'leave' ) { $submitted = true; if ( !wp_verify_nonce( $_POST[$nonce], $nonce_action ) ) { $invalid_nonce = true; } } if ( $submitted && !$invalid_nonce ) { // remove user from group if ( isset( $_POST['group_id'] ) ) { $leave_group = Groups_Group::read( $_POST['group_id'] ); Groups_User_Group::delete( $user_id, $leave_group->group_id ); } } if ( Groups_User_Group::read( $user_id, $current_group->group_id ) ) { $submit_text = sprintf( $options['submit_text'], wp_filter_nohtml_kses( $current_group->name ) ); $output .= '

'; $output .= ''; $output .= '

'; } else if ( $display_message ) { if ( $submitted && !$invalid_nonce && isset( $leave_group ) && $leave_group->group_id === $current_group->group_id ) { $output .= '

'; $output .= sprintf( __( 'You have left the %s group.', GROUPS_PLUGIN_DOMAIN ), wp_filter_nohtml_kses( $leave_group->name ) ); $output .= '

'; } } } } return $output; } } Groups_Shortcodes::init();