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stmt.go
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stmt.go
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package sqlx
import (
"context"
"database/sql"
"time"
"github.com/wuhc1010/go-zero/core/logx"
"github.com/wuhc1010/go-zero/core/syncx"
"github.com/wuhc1010/go-zero/core/timex"
)
const defaultSlowThreshold = time.Millisecond * 500
var (
slowThreshold = syncx.ForAtomicDuration(defaultSlowThreshold)
logSql = syncx.ForAtomicBool(true)
logSlowSql = syncx.ForAtomicBool(true)
)
// DisableLog disables logging of sql statements, includes info and slow logs.
func DisableLog() {
logSql.Set(false)
logSlowSql.Set(false)
}
// DisableStmtLog disables info logging of sql statements, but keeps slow logs.
func DisableStmtLog() {
logSql.Set(false)
}
// SetSlowThreshold sets the slow threshold.
func SetSlowThreshold(threshold time.Duration) {
slowThreshold.Set(threshold)
}
func exec(ctx context.Context, conn sessionConn, q string, args ...any) (sql.Result, error) {
guard := newGuard("exec")
if err := guard.start(q, args...); err != nil {
return nil, err
}
result, err := conn.ExecContext(ctx, q, args...)
guard.finish(ctx, err)
return result, err
}
func execStmt(ctx context.Context, conn stmtConn, q string, args ...any) (sql.Result, error) {
guard := newGuard("execStmt")
if err := guard.start(q, args...); err != nil {
return nil, err
}
result, err := conn.ExecContext(ctx, args...)
guard.finish(ctx, err)
return result, err
}
func query(ctx context.Context, conn sessionConn, scanner func(*sql.Rows) error,
q string, args ...any) error {
guard := newGuard("query")
if err := guard.start(q, args...); err != nil {
return err
}
rows, err := conn.QueryContext(ctx, q, args...)
guard.finish(ctx, err)
if err != nil {
return err
}
defer rows.Close()
return scanner(rows)
}
func queryStmt(ctx context.Context, conn stmtConn, scanner func(*sql.Rows) error,
q string, args ...any) error {
guard := newGuard("queryStmt")
if err := guard.start(q, args...); err != nil {
return err
}
rows, err := conn.QueryContext(ctx, args...)
guard.finish(ctx, err)
if err != nil {
return err
}
defer rows.Close()
return scanner(rows)
}
type (
sqlGuard interface {
start(q string, args ...any) error
finish(ctx context.Context, err error)
}
nilGuard struct{}
realSqlGuard struct {
command string
stmt string
startTime time.Duration
}
)
func newGuard(command string) sqlGuard {
if logSql.True() || logSlowSql.True() {
return &realSqlGuard{
command: command,
}
}
return nilGuard{}
}
func (n nilGuard) start(_ string, _ ...any) error {
return nil
}
func (n nilGuard) finish(_ context.Context, _ error) {
}
func (e *realSqlGuard) finish(ctx context.Context, err error) {
duration := timex.Since(e.startTime)
if duration > slowThreshold.Load() {
logx.WithContext(ctx).WithDuration(duration).Slowf("[SQL] %s: slowcall - %s", e.command, e.stmt)
} else if logSql.True() {
logx.WithContext(ctx).WithDuration(duration).Infof("sql %s: %s", e.command, e.stmt)
}
if err != nil {
logSqlError(ctx, e.stmt, err)
}
metricReqDur.Observe(int64(duration/time.Millisecond), e.command)
}
func (e *realSqlGuard) start(q string, args ...any) error {
stmt, err := format(q, args...)
if err != nil {
return err
}
e.stmt = stmt
e.startTime = timex.Now()
return nil
}