// Check if query is valid without opening a database.
func Check(query string) error {
query = strings.TrimSpace(query)
if query == "" {
return errempty
}
if query[0] == '(' {
return errbrackets
}
cs := C.CString(query)
defer C.free(unsafe.Pointer(cs))
r := C.c_dbxml_check(cs)
defer C.c_dbxml_result_free(r)
if C.c_dbxml_result_error(r) != 0 {
return errors.New(C.GoString(C.c_dbxml_result_string(r)))
}
return nil
}
// Remove an xml document from the database.
func (db *Db) Remove(name string) error {
db.lock.Lock()
defer db.lock.Unlock()
if !db.opened {
return errclosed
}
cs := C.CString(name)
defer C.free(unsafe.Pointer(cs))
r := C.c_dbxml_remove(db.db, cs)
defer C.c_dbxml_result_free(r)
if C.c_dbxml_result_error(r) != 0 {
return errors.New(C.GoString(C.c_dbxml_result_string(r)))
}
return nil
}
// Get an xml document by name from the database.
func (db *Db) Get(name string) (string, error) {
db.lock.Lock()
defer db.lock.Unlock()
if !db.opened {
return "", errclosed
}
cs := C.CString(name)
defer C.free(unsafe.Pointer(cs))
r := C.c_dbxml_get(db.db, cs)
defer C.c_dbxml_result_free(r)
s := C.GoString(C.c_dbxml_result_string(r))
if C.c_dbxml_result_error(r) != 0 {
return "", errors.New(s)
}
return s, nil
}
// Merge a database from disc into this database.
func (db *Db) Merge(filename string, replace bool) error {
db.lock.Lock()
defer db.lock.Unlock()
if !db.opened {
return errclosed
}
cs := C.CString(filename)
defer C.free(unsafe.Pointer(cs))
repl := C.int(0)
if replace {
repl = 1
}
r := C.c_dbxml_merge(db.db, cs, repl)
defer C.c_dbxml_result_free(r)
if C.c_dbxml_result_error(r) != 0 {
return errors.New(C.GoString(C.c_dbxml_result_string(r)))
}
return nil
}
// Put an xml document from memory into the database.
func (db *Db) PutXml(name string, data string, replace bool) error {
db.lock.Lock()
defer db.lock.Unlock()
if !db.opened {
return errclosed
}
csname := C.CString(name)
defer C.free(unsafe.Pointer(csname))
csdata := C.CString(data)
defer C.free(unsafe.Pointer(csdata))
repl := C.int(0)
if replace {
repl = 1
}
r := C.c_dbxml_put_xml(db.db, csname, csdata, repl)
defer C.c_dbxml_result_free(r)
if C.c_dbxml_result_error(r) != 0 {
return errors.New(C.GoString(C.c_dbxml_result_string(r)))
}
return nil
}