orm: support parenthesized expressions as in select from User where (name == 'Sam' && is_customer == true) || id == 1 (#15693)

vlib/orm/orm.v

@@ -107,13 +107,15 @@ fn (kind OrderType) to_str() string {
 // => fields[abc, b]; data[3, 'test']; types[index of int, index of string]; kinds[.eq, .eq]; is_and[true];
 // Every field, data, type & kind of operation in the expr share the same index in the arrays
 // is_and defines how they're addicted to each other either and or or
+// parentheses defines which fields will be inside ()
 pub struct QueryData {
 pub:
-	fields []string
-	data   []Primitive
-	types  []int
-	kinds  []OperationKind
-	is_and []bool
+	fields      []string
+	data        []Primitive
+	types       []int
+	parentheses [][]int
+	kinds       []OperationKind
+	is_and      []bool
 }
 
 pub struct InfixType {
@@ -266,11 +268,25 @@ pub fn orm_stmt_gen(table string, q string, kind StmtKind, num bool, qm string,
 	}
 	if kind == .update || kind == .delete {
 		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 += '('
+			}
 			str += '$q$field$q ${where.kinds[i].to_str()} $qm'
 			if num {
 				str += '$c'
 				c++
 			}
+			if post_par {
+				str += ')'
+			}
 			if i < where.fields.len - 1 {
 				str += ' AND '
 			}
@@ -311,11 +327,25 @@ pub fn orm_select_gen(orm SelectConfig, q string, num bool, qm string, start_pos
 	if orm.has_where {
 		str += ' WHERE '
 		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 += '('
+			}
 			str += '$q$field$q ${where.kinds[i].to_str()} $qm'
 			if num {
 				str += '$c'
 				c++
 			}
+			if post_par {
+				str += ')'
+			}
 			if i < where.fields.len - 1 {
 				if where.is_and[i] {
 					str += ' AND '