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|
module mysql
[typedef]
struct C.MYSQL_STMT {
mysql &C.MYSQL
stmt_id u32
}
[typedef]
struct C.MYSQL_BIND {
mut:
buffer_type int
buffer voidptr
buffer_length u32
length &u32
}
const (
mysql_type_decimal = C.MYSQL_TYPE_DECIMAL
mysql_type_tiny = C.MYSQL_TYPE_TINY
mysql_type_short = C.MYSQL_TYPE_SHORT
mysql_type_long = C.MYSQL_TYPE_LONG
mysql_type_float = C.MYSQL_TYPE_FLOAT
mysql_type_double = C.MYSQL_TYPE_DOUBLE
mysql_type_null = C.MYSQL_TYPE_NULL
mysql_type_timestamp = C.MYSQL_TYPE_TIMESTAMP
mysql_type_longlong = C.MYSQL_TYPE_LONGLONG
mysql_type_int24 = C.MYSQL_TYPE_INT24
mysql_type_date = C.MYSQL_TYPE_DATE
mysql_type_time = C.MYSQL_TYPE_TIME
mysql_type_datetime = C.MYSQL_TYPE_DATETIME
mysql_type_year = C.MYSQL_TYPE_YEAR
mysql_type_varchar = C.MYSQL_TYPE_VARCHAR
mysql_type_bit = C.MYSQL_TYPE_BIT
mysql_type_timestamp22 = C.MYSQL_TYPE_TIMESTAMP
mysql_type_json = C.MYSQL_TYPE_JSON
mysql_type_newdecimal = C.MYSQL_TYPE_NEWDECIMAL
mysql_type_enum = C.MYSQL_TYPE_ENUM
mysql_type_set = C.MYSQL_TYPE_SET
mysql_type_tiny_blob = C.MYSQL_TYPE_TINY_BLOB
mysql_type_medium_blob = C.MYSQL_TYPE_MEDIUM_BLOB
mysql_type_long_blob = C.MYSQL_TYPE_LONG_BLOB
mysql_type_blob = C.MYSQL_TYPE_BLOB
mysql_type_var_string = C.MYSQL_TYPE_VAR_STRING
mysql_type_string = C.MYSQL_TYPE_STRING
mysql_type_geometry = C.MYSQL_TYPE_GEOMETRY
mysql_no_data = C.MYSQL_NO_DATA
)
fn C.mysql_stmt_init(&C.MYSQL) &C.MYSQL_STMT
fn C.mysql_stmt_prepare(&C.MYSQL_STMT, &char, u32) int
fn C.mysql_stmt_bind_param(&C.MYSQL_STMT, &C.MYSQL_BIND) bool
fn C.mysql_stmt_execute(&C.MYSQL_STMT) int
fn C.mysql_stmt_close(&C.MYSQL_STMT) bool
fn C.mysql_stmt_free_result(&C.MYSQL_STMT) bool
fn C.mysql_stmt_error(&C.MYSQL_STMT) &char
fn C.mysql_stmt_result_metadata(&C.MYSQL_STMT) &C.MYSQL_RES
fn C.mysql_stmt_field_count(&C.MYSQL_STMT) u16
fn C.mysql_stmt_bind_result(&C.MYSQL_STMT, &C.MYSQL_BIND) bool
fn C.mysql_stmt_fetch(&C.MYSQL_STMT) int
fn C.mysql_stmt_next_result(&C.MYSQL_STMT) int
fn C.mysql_stmt_store_result(&C.MYSQL_STMT) int
struct Stmt {
stmt &C.MYSQL_STMT = &C.MYSQL_STMT(0)
query string
mut:
binds []C.MYSQL_BIND
res []C.MYSQL_BIND
}
pub fn (db Connection) init_stmt(query string) Stmt {
return Stmt{
stmt: C.mysql_stmt_init(db.conn)
query: query
binds: []C.MYSQL_BIND{}
}
}
pub fn (stmt Stmt) prepare() ? {
res := C.mysql_stmt_prepare(stmt.stmt, stmt.query.str, stmt.query.len)
if res != 0 && stmt.get_error_msg() != '' {
return stmt.error(res)
}
}
pub fn (stmt Stmt) bind_params() ? {
res := C.mysql_stmt_bind_param(stmt.stmt, &C.MYSQL_BIND(stmt.binds.data))
if res && stmt.get_error_msg() != '' {
return stmt.error(1)
}
}
pub fn (stmt Stmt) execute() ?int {
res := C.mysql_stmt_execute(stmt.stmt)
if res != 0 && stmt.get_error_msg() != '' {
return stmt.error(res)
}
return res
}
pub fn (stmt Stmt) next() ?int {
res := C.mysql_stmt_next_result(stmt.stmt)
if res > 0 && stmt.get_error_msg() != '' {
return stmt.error(res)
}
return res
}
pub fn (stmt Stmt) gen_metadata() &C.MYSQL_RES {
return C.mysql_stmt_result_metadata(stmt.stmt)
}
pub fn (stmt Stmt) fetch_fields(res &C.MYSQL_RES) &C.MYSQL_FIELD {
return C.mysql_fetch_fields(res)
}
pub fn (stmt Stmt) fetch_stmt() ?int {
res := C.mysql_stmt_fetch(stmt.stmt)
if res !in [0, 100] && stmt.get_error_msg() != '' {
return stmt.error(res)
}
return res
}
pub fn (stmt Stmt) close() ? {
if !C.mysql_stmt_close(stmt.stmt) && stmt.get_error_msg() != '' {
return stmt.error(1)
}
if !C.mysql_stmt_free_result(stmt.stmt) && stmt.get_error_msg() != '' {
return stmt.error(1)
}
}
fn (stmt Stmt) get_error_msg() string {
return unsafe { cstring_to_vstring(&char(C.mysql_stmt_error(stmt.stmt))) }
}
pub fn (stmt Stmt) error(code int) IError {
msg := stmt.get_error_msg()
return IError(&SQLError{
msg: '$msg ($code) ($stmt.query)'
code: code
})
}
fn (stmt Stmt) get_field_count() u16 {
return C.mysql_stmt_field_count(stmt.stmt)
}
pub fn (mut stmt Stmt) bind_bool(b &bool) {
stmt.bind(mysql.mysql_type_tiny, b, 0)
}
pub fn (mut stmt Stmt) bind_byte(b &byte) {
stmt.bind(mysql.mysql_type_tiny, b, 0)
}
pub fn (mut stmt Stmt) bind_i8(b &i8) {
stmt.bind(mysql.mysql_type_tiny, b, 0)
}
pub fn (mut stmt Stmt) bind_i16(b &i16) {
stmt.bind(mysql.mysql_type_short, b, 0)
}
pub fn (mut stmt Stmt) bind_u16(b &u16) {
stmt.bind(mysql.mysql_type_short, b, 0)
}
pub fn (mut stmt Stmt) bind_int(b &int) {
stmt.bind(mysql.mysql_type_long, b, 0)
}
pub fn (mut stmt Stmt) bind_u32(b &u32) {
stmt.bind(mysql.mysql_type_long, b, 0)
}
pub fn (mut stmt Stmt) bind_i64(b &i64) {
stmt.bind(mysql.mysql_type_longlong, b, 0)
}
pub fn (mut stmt Stmt) bind_u64(b &u64) {
stmt.bind(mysql.mysql_type_longlong, b, 0)
}
pub fn (mut stmt Stmt) bind_f32(b &f32) {
stmt.bind(mysql.mysql_type_float, b, 0)
}
pub fn (mut stmt Stmt) bind_f64(b &f64) {
stmt.bind(mysql.mysql_type_double, b, 0)
}
pub fn (mut stmt Stmt) bind_text(b string) {
stmt.bind(mysql.mysql_type_string, b.str, u32(b.len))
}
pub fn (mut stmt Stmt) bind(typ int, buffer voidptr, buf_len u32) {
stmt.binds << C.MYSQL_BIND{
buffer_type: typ
buffer: buffer
buffer_length: buf_len
length: 0
}
}
pub fn (mut stmt Stmt) bind_res(fields &C.MYSQL_FIELD, dataptr []&char, lens []u32, num_fields int) {
for i in 0 .. num_fields {
len := FieldType(unsafe { fields[i].@type }).get_len()
stmt.res << C.MYSQL_BIND{
buffer_type: unsafe { fields[i].@type }
buffer: dataptr[i]
length: &lens[i]
buffer_length: &len
}
}
}
pub fn (mut stmt Stmt) bind_result_buffer() ? {
res := C.mysql_stmt_bind_result(stmt.stmt, &C.MYSQL_BIND(stmt.res.data))
if res && stmt.get_error_msg() != '' {
return stmt.error(1)
}
}
pub fn (mut stmt Stmt) store_result() ? {
res := C.mysql_stmt_store_result(stmt.stmt)
if res != 0 && stmt.get_error_msg() != '' {
return stmt.error(res)
}
}
|
