orm: enforce that queries always return a Result, a query-resulting array can be used as a V array in place. (#17871)

vlib/orm/orm_result_test.v

@@ -0,0 +1,82 @@
+import db.sqlite
+
+struct Account {
+	id   int    [primary; sql: serial]
+	name string
+}
+
+struct Note {
+	id      int    [primary; sql: serial]
+	content string
+}
+
+fn test_catch_table_is_not_created() {
+	mut db := sqlite.connect(':memory:')!
+
+	mut is_inserted := true
+
+	account := Account{}
+
+	sql db {
+		insert account into Account
+	} or { is_inserted = false }
+
+	assert !is_inserted
+}
+
+fn test_catch_one_of_queries() {
+	mut db := sqlite.connect(':memory:')!
+
+	sql db {
+		create table Account
+	}!
+
+	account := Account{}
+
+	sql db {
+		insert account into Account
+	}!
+
+	mut are_updated := true
+
+	sql db {
+		update Account set name = 'test' where id == 1
+		update Note set content = 'test' where id == 1
+	} or { are_updated = false }
+
+	assert !are_updated
+}
+
+fn test_print_results() {
+	mut db := sqlite.connect(':memory:')!
+
+	sql db {
+		create table Account
+	}!
+
+	account := Account{}
+
+	sql db {
+		insert account into Account
+	}!
+
+	count := sql db {
+		select count from Account
+	}!
+
+	println(count)
+
+	user := sql db {
+		select from Account
+	}!.first()
+
+	println(user)
+
+	users := sql db {
+		select from Account
+	}!
+
+	println(users)
+
+	assert true
+}