function delete_item_instance($item_id, $instance_no)
{
// remove all child related item instance relationships only - not the actual instances themselves.
delete_item_instance_relationships($item_r['item_id'], $item_r['instance_no']);
if (!is_exists_related_item_instance_relationship($item_r['item_id'], $item_r['instance_no'])) {
$query = "DELETE FROM item_instance WHERE item_id = '" . $item_id . "' AND instance_no = '{$instance_no}'";
$delete = db_query($query);
if (db_affected_rows() > 0) {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($item_id, $instance_no));
return TRUE;
} else {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, db_error(), array($item_id, $instance_no));
return FALSE;
}
} else {
opendb_logger(OPENDB_LOG_ERROR, __FILE__, __FUNCTION__, 'Instance is referenced in at least one item instance relationship', array($item_id, $instance_no));
return FALSE;
}
}
function handle_item_delete($item_r, $status_type_r, $HTTP_VARS, &$errors, $delete_with_closed_borrow_records = NULL)
{
if ($item_r['owner_id'] != get_opendb_session_var('user_id') && !is_user_granted_permission(PERM_ITEM_ADMIN)) {
$errors = array('error' => get_opendb_lang_var('cannot_delete_item_not_owned'), 'detail' => '');
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'User to delete item instance they do not own', $item_r);
return FALSE;
}
if ($status_type_r['delete_ind'] != 'Y') {
$errors = array('error' => get_opendb_lang_var('operation_not_avail_s_status_type', 's_status_type_desc', $status_type_r['description']), 'detail' => '');
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'Attempted to delete item instance with a status that prevents the item being deleted', $item_r);
return FALSE;
}
if (is_exists_item_instance_relationship($item_r['item_id'], $item_r['instance_no'])) {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_related_to_other_items'));
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'User attempted to to delete item with related items', $item_r);
return FALSE;
}
if (is_item_reserved_or_borrowed($item_r['item_id'], $item_r['instance_no'])) {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_reserved_or_borrowed'));
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'User attempted to to delete item with active reservation(s)', $item_r);
return FALSE;
}
$inactive_borrowed_items_exist = FALSE;
if (is_exists_item_instance_borrowed_item($item_r['item_id'], $item_r['instance_no'])) {
if (get_opendb_config_var('item_input', 'allow_delete_with_closed_or_cancelled_borrow_records') !== TRUE) {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_has_inactive_borrowed_item'));
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'User attempted to to delete item with inactive reservation(s)', $item_r);
return FALSE;
} else {
$inactive_borrowed_items_exist = TRUE;
}
}
if ($HTTP_VARS['confirmed'] == 'true' || $inactive_borrowed_items_exist !== TRUE && get_opendb_config_var('item_input', 'confirm_item_delete') === FALSE) {
if ($inactive_borrowed_items_exist) {
if (!delete_item_instance_inactive_borrowed_items($item_r['item_id'], $item_r['instance_no'])) {
$db_error = db_error();
$errors = array('error' => get_opendb_lang_var('undefined_error'), 'detail' => $db_error);
return FALSE;
}
}
if (!is_exists_item_instance_borrowed_item($item_r['item_id'], $item_r['instance_no'])) {
delete_related_item_instance_relationship($item_r['item_id'], $item_r['instance_no'], $HTTP_VARS['parent_item_id'], $HTTP_VARS['parent_instance_no']);
if (!is_exists_related_item_instance_relationship($item_r['item_id'], $item_r['instance_no'])) {
if (!delete_item_instance($item_r['item_id'], $item_r['instance_no'])) {
$db_error = db_error();
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => $db_error);
return FALSE;
}
} else {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_related_to_other_items'));
opendb_logger(OPENDB_LOG_WARN, __FILE__, __FUNCTION__, 'User attempted to to delete item with attached item instance relationship record(s)', $item_r);
return FALSE;
}
} else {
if (is_item_reserved_or_borrowed($item_r['item_id'], $item_r['instance_no'])) {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_reserved_or_borrowed'));
} else {
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => get_opendb_lang_var('item_has_inactive_borrowed_item'));
}
return FALSE;
}
// If child and no more instance left,
// proceed with item and item_attribute delete.
if (!is_exists_item_instance($item_r['item_id'], NULL)) {
// Get rid of all reviews.
if (is_item_reviewed($item_r['item_id'])) {
delete_reviews($item_r['item_id']);
}
delete_item_attributes($item_r['item_id'], $item_r['instance_no']);
if (!delete_item($item_r['item_id'])) {
$db_error = db_error();
$errors = array('error' => get_opendb_lang_var('item_not_deleted'), 'detail' => $db_error);
return FALSE;
}
// As long as delete_item has worked, we do not care about anything else.
return TRUE;
}
} else {
if ($HTTP_VARS['confirmed'] != 'false') {
if ($inactive_borrowed_items_exist) {
return "__CONFIRM_INACTIVE_BORROW__";
} else {
return "__CONFIRM__";
}
} else {
// confirmation required.
return "__ABORTED__";
}
}
}
function perform_update_process(&$item_r, &$status_type_r, &$HTTP_VARS, &$footer_links_r)
{
global $PHP_SELF;
do_op_title($item_r, $status_type_r, $HTTP_VARS['start-op'] == 'newinstance' ? 'newinstance' : 'update');
$errors = NULL;
$return_val = FALSE;
if ($HTTP_VARS['start-op'] == 'newinstance') {
$item_r['instance_no'] = NULL;
$return_val = handle_item_instance_insert($item_r, $status_type_r, $HTTP_VARS, $errors);
} else {
$return_val = handle_item_instance_update($item_r, $status_type_r, $HTTP_VARS, $errors);
}
if ($return_val === TRUE) {
$return_val = handle_item_update($item_r, $HTTP_VARS, $errors);
if (get_opendb_config_var('item_input', 'related_item_support') !== FALSE) {
if (!empty($HTTP_VARS['parent_item'])) {
$parent_item_r = get_item_id_and_instance_no($HTTP_VARS['parent_item']);
if (is_exists_item_instance($parent_item_r['item_id'], $parent_item_r['instance_no']) && !is_exists_related_item_instance_relationship($item_r['item_id'], $item_r['instance_no'], $parent_item_r['item_id'], $parent_item_r['instance_no'])) {
insert_item_instance_relationship($parent_item_r['item_id'], $parent_item_r['instance_no'], $item_r['item_id'], $item_r['instance_no']);
}
}
}
}
if ($return_val === "__INVALID_DATA__") {
echo format_error_block($errors);
$HTTP_VARS['op'] = 'edit';
$formContents = handle_edit_or_refresh($HTTP_VARS['op'], $item_r, $status_type_r, $HTTP_VARS, $errors);
if ($formContents !== FALSE) {
echo $formContents;
} else {
echo format_error_block($errors);
}
} else {
if ($return_val === TRUE) {
if ($HTTP_VARS['start-op'] == 'newinstance') {
echo "<p class=\"success\">" . get_opendb_lang_var('item_instance_added') . "</p>";
} else {
echo "<p class=\"success\">" . get_opendb_lang_var('item_updated') . "</p>";
}
echo format_error_block($errors, 'warning');
$footer_links_r[] = array(url => "item_display.php?item_id=" . $item_r['item_id'] . "&instance_no=" . $item_r['instance_no'], text => get_opendb_lang_var('back_to_item'));
} else {
echo format_error_block($errors);
}
}
}
