' . esc_html__( 'All items removed.', 'huber' ) . '' );
} else {
ghostpool_die_or_go( 'Error' );
}
}
}
}
add_action( 'wp_loaded', 'ghostpool_follow_items' );
function ghostpool_follow() {
$post_id = $_REQUEST['postid'];
if ( ! is_user_logged_in() ) {
return;
}
if ( ghostpool_do_add_to_list( $post_id ) ) {
do_action( 'ghostpool_after_add', $post_id );
ghostpool_update_post_meta( $post_id, 1 );
$str = ghostpool_follow_button( $post_id, 1, 'remove' );
ghostpool_die_or_go( $str );
}
}
function ghostpool_do_add_to_list( $post_id ) {
if ( ghostpool_check_followed( $post_id ) )
return false;
if ( is_user_logged_in() ) {
return ghostpool_add_to_usermeta( $post_id );
}
}
function ghostpool_unfollow() {
$post_id = $_REQUEST['postid'];
if ( ghostpool_do_unfollow( $post_id ) ) {
do_action( 'ghostpool_after_remove', $post_id );
ghostpool_update_post_meta( $post_id, -1 );
if ( isset( $_REQUEST['page'] ) && $_REQUEST['page'] == 1 ) {
$str = '';
} else {
$str = ghostpool_follow_button( $post_id, 1, 'add' );
}
ghostpool_die_or_go( $str );
} else {
return false;
}
}
function ghostpool_die_or_go( $str ) {
global $ajax_mode;
if ( $ajax_mode) {
die( $str );
} else {
wp_redirect( $_SERVER['HTTP_REFERER'] );
}
}
function ghostpool_add_to_usermeta( $post_id ) {
if ( ! is_array( ghostpool_get_user_meta() ) ) {
$followed = array();
} else {
$followed = ghostpool_get_user_meta();
}
$followed[] = $post_id;
ghostpool_update_user_meta( $followed );
return true;
}
function ghostpool_check_followed( $cid ) {
if ( is_user_logged_in() ) {
$following_page_ids = ghostpool_get_user_meta();
if ( $following_page_ids )
foreach ( $following_page_ids as $fpost_id )
if ( $fpost_id == $cid ) return true;
}
return false;
}
// Changes button text
function ghostpool_follow_button( $post_id, $return = 0, $action = '' ) {
$str = '';
if ( $action == 'remove' ) :
$str .= ghostpool_follow_button_html( $post_id, esc_html__( 'Unfollow', 'huber' ), 'remove' );
elseif ( $action == 'add' ) :
$str .= ghostpool_follow_button_html( $post_id, esc_html__( 'Follow', 'huber' ), 'add' );
elseif ( ghostpool_check_followed( $post_id ) ) :
$str .= ghostpool_follow_button_html( $post_id, esc_html__( 'Unfollow', 'huber' ), 'remove' );
else:
$str .= ghostpool_follow_button_html( $post_id, esc_html__( 'Follow', 'huber' ), 'add' );
endif;
if ( $return ) {
return $str;
} else {
echo html_entity_decode( $str );
}
}
// Generates button
function ghostpool_follow_button_html( $post_id, $opt, $action ) {
if ( ! is_user_logged_in() ) {
return;
}
$link = "" . ghostpool_loader() . $opt . "";
$link = apply_filters( 'ghostpool_follow_button_html', $link );
return $link;
}
function ghostpool_list_follow_items( $user_id ) {
$following_page_ids = array();
if ( is_user_logged_in() ) {
$following_page_ids = ghostpool_get_user_meta();
}
return $following_page_ids;
}
function ghostpool_loader() {
return '';
}
function ghostpool_clear_followed() {
if ( is_user_logged_in() ) {
$following_page_ids = ghostpool_get_user_meta();
if ( $following_page_ids ) :
foreach ( $following_page_ids as $post_id ) {
ghostpool_update_post_meta( $post_id, -1 );
}
endif;
if ( ! delete_user_meta( get_current_user_id(), GHOSTPOOL_META_KEY ) ) {
return false;
}
}
return true;
}
function ghostpool_do_unfollow( $post_id ) {
if ( ! ghostpool_check_followed( $post_id ) )
return true;
$a = true;
if ( is_user_logged_in() ) {
$user_following = ghostpool_get_user_meta();
$user_following = array_diff( $user_following, array( $post_id ) );
$user_following = array_values( $user_following );
$a = ghostpool_update_user_meta( $user_following );
}
return $a;
}
function ghostpool_update_user_meta( $arr ) {
return update_user_meta( get_current_user_id(), GHOSTPOOL_META_KEY, $arr );
}
function ghostpool_update_post_meta( $post_id, $val ) {
$oldval = ghostpool_get_post_meta( $post_id );
if ( $val == -1 && $oldval == 0 ) {
$val = 0;
} else {
$val = $oldval + $val;
}
return add_post_meta( $post_id, GHOSTPOOL_META_KEY, $val, true ) OR update_post_meta( $post_id, GHOSTPOOL_META_KEY, $val );
}
function ghostpool_delete_post_meta( $post_id ) {
return delete_post_meta( $post_id, GHOSTPOOL_META_KEY );
}
function ghostpool_get_user_meta( $user = '' ) {
if ( ! empty( $user ) ) :
$userdata = get_user_by( 'login', $user );
$user_id = $userdata->ID;
return get_user_meta( $user_id, GHOSTPOOL_META_KEY, true );
else:
return get_user_meta( get_current_user_id(), GHOSTPOOL_META_KEY, true );
endif;
}
function ghostpool_get_post_meta( $post_id ) {
$val = get_post_meta( $post_id, GHOSTPOOL_META_KEY, true );
if ( $val == '' OR $val < 0) {
$val = 0;
}
return $val;
}
function ghostpool_is_user_can_edit() {
if ( isset( $_REQUEST['user'] ) && $_REQUEST['user'] )
return false;
return true;
}
function ghostpool_remove_follow_button( $post_id ) {
if ( ghostpool_is_user_can_edit() ) {
$link = "" . esc_html__( 'Remove', 'huber' ) . "";
$link = apply_filters( 'ghostpool_remove_follow_button', $link );
echo html_entity_decode( $link );
}
}
function ghostpool_clear_list_link() {
if ( ghostpool_is_user_can_edit() ) {
echo "" . ghostpool_loader() . esc_html__( 'Unfollow All Items', 'huber' ) . "";
}
}