remove ctx, db stuff and use callbacks instead

delete.go

@@ -1,15 +1,13 @@
 package sqimple
 
 import (
-	"context"
 	"database/sql"
 	"strings"
 )
 
 // https://www.sqlite.org/lang_delete.html
 type DeleteStatement struct {
-	Ctx context.Context
-	DB  *sql.DB
+	execFunc func(Query) (sql.Result, error)
 
 	table SelectTable
 
@@ -22,15 +20,16 @@ func (s *DeleteStatement) Args() []any {
 }
 
 func (s *DeleteStatement) Exec() (sql.Result, error) {
-	if s.DB != nil {
-		if s.Ctx != nil {
-			return s.DB.ExecContext(s.Ctx, s.String(), s.Args()...)
-		}
-
-		return s.DB.Exec(s.String(), s.Args()...)
+	if s.execFunc != nil {
+		return s.execFunc(s)
 	}
 
-	return nil, ErrNoDatabase
+	return nil, nil
+}
+
+func (s *DeleteStatement) ExecFunc(f func(Query) (sql.Result, error)) *DeleteStatement {
+	s.execFunc = f
+	return s
 }
 
 func (s *DeleteStatement) IsValid() bool {