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v/vlib/mysql/mysql.v
2020-05-04 14:58:24 +02:00

170 lines
4.0 KiB
V

module mysql
#flag -lmysqlclient
#flag linux -I/usr/include/mysql
#include <mysql.h>
pub struct Connection {
host string
port u32
username string
password string
dbname string
flag int
mut:
conn &C.MYSQL
}
pub fn new_connection(host, username, password, dbname string) ?Connection {
instance := C.mysql_init(0)
if isnil(instance) {
return error_with_code(get_error_msg(instance), get_errno(instance))
}
return Connection{ host, 0, username, password, dbname, 0, instance }
}
pub fn (conn mut Connection) connect() ?bool {
mut instance := C.mysql_init(0)
if !isnil(conn.conn) {
instance = conn.conn
}
if isnil(instance) {
return error_with_code(get_error_msg(instance), get_errno(instance))
}
conn.conn = C.mysql_real_connect(
instance,
conn.host.str,
conn.username.str,
conn.password.str,
conn.dbname.str,
conn.port,
0,
conn.flag
)
if isnil(conn.conn) {
return error_with_code(get_error_msg(instance), get_errno(instance))
}
return true
}
pub fn (conn Connection) query(q string) ?Result {
if C.mysql_query(conn.conn, q.str) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
res := C.mysql_store_result(conn.conn)
return Result{res}
}
pub fn (conn Connection) select_db(dbname string) ?bool {
if C.mysql_select_db(conn.conn, dbname.str) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return true
}
pub fn (conn Connection) change_user(username, password, dbname string) ?bool {
mut ret := true
if dbname != '' {
ret = C.mysql_change_user(conn.conn, username.str, password.str, dbname.str)
} else {
ret = C.mysql_change_user(conn.conn, username.str, password.str, 0)
}
if !ret {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return ret
}
pub fn (conn Connection) affected_rows() u64 {
return C.mysql_affected_rows(conn.conn)
}
pub fn (conn Connection) autocommit(mode bool) {
C.mysql_autocommit(conn.conn, mode)
}
pub fn (conn Connection) escape_string(s string) string {
len := C.strlen(s.str)
to := malloc(2 * len + 1)
quote := byte(39) // single quote
C.mysql_real_escape_string_quote(conn.conn, to, s.str, len, quote)
return string(to)
}
pub fn (conn Connection) set_option(option_type int, val voidptr) {
C.mysql_options(conn.conn, option_type, val)
}
pub fn (conn Connection) get_option(option_type int) ?voidptr {
ret := voidptr(0)
if C.mysql_get_option(conn.conn, option_type, &ret) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return ret
}
pub fn (conn Connection) refresh(options u32) ?bool {
if C.mysql_refresh(conn.conn, options) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return true
}
pub fn (conn Connection) reset_connection() ?bool {
if C.mysql_reset_connection(conn.conn) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return true
}
pub fn (conn Connection) ping() ?bool {
if C.mysql_ping(conn.conn) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return true
}
pub fn (conn Connection) close() {
C.mysql_close(conn.conn)
}
/* MYSQL INFO & VERSION */
pub fn (conn Connection) info() string {
return string(C.mysql_info(conn.conn))
}
pub fn (conn Connection) get_host_info() string {
return string(C.mysql_get_host_info(conn.conn))
}
pub fn (conn Connection) get_server_info() string {
return string(C.mysql_get_server_info(conn.conn))
}
pub fn (conn Connection) get_server_version() u64 {
return C.mysql_get_server_version(conn.conn)
}
pub fn get_client_version() u64 {
return C.mysql_get_client_version()
}
pub fn get_client_info() string {
return string(C.mysql_get_client_info())
}
/* MYSQL DEBUG */
pub fn (conn Connection) dump_debug_info() ?bool {
if C.mysql_dump_debug_info(conn.conn) != 0 {
return error_with_code(get_error_msg(conn.conn), get_errno(conn.conn))
}
return true
}
pub fn debug(debug string) {
C.mysql_debug(debug.str)
}