orm: fix gen sql complex where (fix #24136) (#24138)

vlib/orm/orm.v

@@ -392,17 +392,13 @@ pub fn orm_select_gen(cfg SelectConfig, q string, num bool, qm string, start_pos
 
 fn gen_where_clause(where QueryData, q string, qm string, num bool, mut c &int) string {
 	mut str := ''
+
 	for i, field in where.fields {
-		mut pre_par := false
-		mut post_par := false
-		for par in where.parentheses {
-			if i in par {
-				pre_par = par[0] == i
-				post_par = par[1] == i
-			}
-		}
-		if pre_par {
-			str += '('
+		current_pre_par := where.parentheses.count(it[0] == i)
+		current_post_par := where.parentheses.count(it[1] == i)
+
+		if current_pre_par > 0 {
+			str += ' ( '.repeat(current_pre_par)
 		}
 		str += '${q}${field}${q} ${where.kinds[i].to_str()}'
 		if !where.kinds[i].is_unary() {
@@ -412,8 +408,8 @@ fn gen_where_clause(where QueryData, q string, qm string, num bool, mut c &int)
 				c++
 			}
 		}
-		if post_par {
-			str += ')'
+		if current_post_par > 0 {
+			str += ' ) '.repeat(current_post_par)
 		}
 		if i < where.fields.len - 1 {
 			if where.is_and[i] {

vlib/orm/orm_complex_where_test.v

@@ -0,0 +1,45 @@
+// vtest build: present_sqlite3?
+import db.sqlite
+
+struct ComplexWhere {
+pub mut:
+	id   int
+	name string
+	rank f32
+}
+
+fn test_create_without_id_field() {
+	db := sqlite.connect(':memory:')!
+
+	sql db {
+		create table ComplexWhere
+	}!
+
+	datas := [
+		ComplexWhere{
+			id:   0
+			name: 'test1'
+			rank: 1.5
+		},
+		ComplexWhere{
+			id:   1
+			name: 'test2'
+			rank: 2.5
+		},
+		ComplexWhere{
+			id:   2
+			name: 'test3'
+			rank: 3.5
+		},
+	]
+
+	for data in datas {
+		sql db {
+			insert data into ComplexWhere
+		}!
+	}
+
+	res := sql db {
+		select from ComplexWhere where name == 'a' && (id > 1 || (rank > 2.5 && rank < 3.33))
+	} or { assert false, err.msg() }
+}