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

Author: walking devel

cmd/tools/vtest-self.v

@@ -130,6 +130,7 @@ const (
 		'vlib/orm/orm_string_interpolation_in_where_test.v',
 		'vlib/orm/orm_interface_test.v',
 		'vlib/orm/orm_mut_db_test.v',
+		'vlib/orm/orm_result_test.v',
 		'vlib/db/sqlite/sqlite_test.v',
 		'vlib/db/sqlite/sqlite_orm_test.v',
 		'vlib/db/sqlite/sqlite_vfs_lowlevel_test.v',
@@ -205,6 +206,7 @@ const (
 		'vlib/orm/orm_string_interpolation_in_where_test.v',
 		'vlib/orm/orm_interface_test.v',
 		'vlib/orm/orm_mut_db_test.v',
+		'vlib/orm/orm_result_test.v',
 		'vlib/v/tests/orm_sub_struct_test.v',
 		'vlib/v/tests/orm_sub_array_struct_test.v',
 		'vlib/v/tests/orm_joined_tables_select_test.v',

doc/docs.md

@@ -4850,18 +4850,18 @@ db := sqlite.connect('customers.db')!
 // )
 sql db {
 	create table Customer
-}
+}!
 
 // select count(*) from customers
 nr_customers := sql db {
 	select count from Customer
-}
+}!
 println('number of all customers: ${nr_customers}')
 
 // V syntax can be used to build queries
 uk_customers := sql db {
 	select from Customer where country == 'uk' && nr_orders > 0
-}
+}!
 println(uk_customers.len)
 for customer in uk_customers {
 	println('${customer.id} - ${customer.name}')
@@ -4874,7 +4874,7 @@ new_customer := Customer{
 }
 sql db {
 	insert new_customer into Customer
-}
+}!
 ```
 
 For more examples and the docs, see [vlib/orm](https://github.com/vlang/v/tree/master/vlib/orm).

examples/database/orm.v

@@ -70,16 +70,16 @@ fn sqlite3_array() ! {
 		sql db {
 			drop table Parent
 			drop table Child
-		}
+		} or {}
 		db.close() or {}
 	}
-	//
+
 	sql db {
 		create table Parent
-	}
+	}!
 	sql db {
 		create table Child
-	}
+	}!
 	par := Parent{
 		name: 'test'
 		children: [
@@ -93,10 +93,10 @@ fn sqlite3_array() ! {
 	}
 	sql db {
 		insert par into Parent
-	}
+	}!
 	parent := sql db {
 		select from Parent where id == 1
-	}
+	}!
 	eprintln(parent)
 }
 
@@ -113,16 +113,16 @@ fn msql_array() ! {
 	defer {
 		sql db {
 			drop table Parent
-		}
+		} or {}
 		db.close()
 	}
-	//
+
 	db.query('drop table if exists Parent')!
 	db.query('drop table if exists Child')!
 	sql db {
 		create table Parent
 		create table Child
-	}
+	}!
 	par := Parent{
 		name: 'test'
 		children: [
@@ -136,10 +136,10 @@ fn msql_array() ! {
 	}
 	sql db {
 		insert par into Parent
-	}
+	}!
 	parent := sql db {
 		select from Parent where id == 1
-	}
+	}!
 	eprintln(parent)
 }
 
@@ -151,11 +151,11 @@ fn psql_array() ! {
 		db.close()
 	}
 	db.exec_one('drop table if exists "Parent", "Child"') or { eprintln(err) }
-	//
+
 	sql db {
 		create table Parent
 		create table Child
-	}
+	}!
 	par := Parent{
 		name: 'test'
 		children: [
@@ -169,10 +169,10 @@ fn psql_array() ! {
 	}
 	sql db {
 		insert par into Parent
-	}
+	}!
 	parent := sql db {
 		select from Parent where id == 1
-	}
+	}!
 	eprintln(parent)
 }
 
@@ -182,19 +182,17 @@ fn sqlite3() ! {
 	defer {
 		sql db {
 			drop table Module
-		}
-		sql db {
 			drop table User
-		}
+		} or {}
 		db.close() or {}
 	}
-	//
+
 	sql db {
 		create table Module
-	}
+	}!
 	sql db {
 		create table User
-	}
+	}!
 	mod := Module{
 		name: 'test'
 		nr_downloads: 10
@@ -206,10 +204,10 @@ fn sqlite3() ! {
 	}
 	sql db {
 		insert mod into Module
-	}
+	}!
 	modul := sql db {
 		select from Module where id == 1
-	}
+	}!
 	eprintln(modul)
 }
 
@@ -230,13 +228,13 @@ fn msql() ! {
 	}
 	conn.query('DROP TABLE IF EXISTS Module') or { eprintln(err) }
 	conn.query('DROP TABLE IF EXISTS User') or { eprintln(err) }
-	//
+
 	sql conn {
 		create table Module
-	}
+	}!
 	sql conn {
 		create table User
-	}
+	}!
 	mod := Module{
 		name: 'test'
 		nr_downloads: 10
@@ -248,10 +246,10 @@ fn msql() ! {
 	}
 	sql conn {
 		insert mod into Module
-	}
+	}!
 	m := sql conn {
 		select from Module where id == 1
-	}
+	}!
 	eprintln(m)
 }
 
@@ -266,7 +264,7 @@ fn psql() ! {
 	sql db {
 		create table Module
 		create table User
-	}
+	}!
 	mod := Module{
 		name: 'test'
 		nr_downloads: 10
@@ -278,13 +276,13 @@ fn psql() ! {
 	}
 	sql db {
 		insert mod into Module
-	}
+	}!
 	modul := sql db {
 		select from Module where id == 1
-	}
+	}!
 	sql db {
 		drop table Module
-	}
+	}!
 	eprintln(modul)
 }
 

examples/js_dom_draw_bechmark_chart/README.md

@@ -44,7 +44,7 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 
 	sql db {
 		create table Task
-	}
+	}!
 
 	task_model := Task{
 		title: 'a'
@@ -55,14 +55,14 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 		sw.start()
 		sql db {
 			insert task_model into Task
-		}
+		} or { []Task{} }
 		sw.stop()
 		insert_stopwatchs << int(sw.end - sw.start)
 	}
 
 	sql db {
 		drop table Task
-	}
+	}!
 
 	response := Response{
 		insert:	insert_stopwatchs

examples/js_dom_draw_bechmark_chart/chart/README.md

@@ -31,7 +31,7 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 
 	sql db {
 		create table Task
-	}
+	} or { panic(err) }
 
 	task_model := Task{
 		title: 'a'
@@ -42,14 +42,14 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 		sw.start()
 		sql db {
 			insert task_model into Task
-		}
+		} or { []Task{} }
 		sw.stop()
 		insert_stopwatchs << int(sw.end - sw.start)
 	}
 
 	sql db {
 		drop table Task
-	}
+	} or { panic(err) }
 
 	response := Response{
 		insert:	insert_stopwatchs

examples/js_dom_draw_bechmark_chart/v_vweb_orm/src/main.v

@@ -50,7 +50,7 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 
 	sql db {
 		create table Task
-	}
+	} or { panic(err) }
 
 	task_model := Task{
 		title: 'a'
@@ -62,7 +62,7 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 		sw.start()
 		sql db {
 			insert task_model into Task
-		}
+		} or { panic(err) }
 		sw.stop()
 		insert_stopwatchs << int(sw.end - sw.start)
 	}
@@ -72,7 +72,7 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 		sw.start()
 		result := sql db {
 			select from Task
-		}
+		} or { []Task{} }
 		sw.stop()
 		eprintln(result)
 		select_stopwatchs << int(sw.end - sw.start)
@@ -83,14 +83,14 @@ pub fn (mut app App) sqlite_memory(count int) vweb.Result {
 		sw.start()
 		sql db {
 			update Task set title = 'b', status = 'finish' where id == i
-		}
+		} or { panic(err) }
 		sw.stop()
 		update_stopwatchs << int(sw.end - sw.start)
 	}
 
 	sql db {
 		drop table Task
-	}
+	} or { panic(err) }
 
 	response := Response{
 		insert: insert_stopwatchs

examples/vweb_fullstack/src/auth_services.v

@@ -36,7 +36,7 @@ fn (mut app App) service_auth(username string, password string) !string {
 
 	users := sql db {
 		select from User where username == username
-	}
+	}!
 	user := users.first()
 	if user.username != username {
 		return error('user not found')

examples/vweb_fullstack/src/product_service.v

@@ -37,7 +37,7 @@ fn (mut app App) service_get_all_products_from(user_id int) ![]Product {
 
 	results := sql db {
 		select from Product where user_id == user_id
-	}
+	}!
 
 	return results
 }

examples/vweb_fullstack/src/user_services.v

@@ -42,7 +42,7 @@ fn (mut app App) service_get_all_user() ![]User {
 
 	results := sql db {
 		select from User
-	}
+	}!
 
 	return results
 }
@@ -59,7 +59,7 @@ fn (mut app App) service_get_user(id int) !User {
 
 	results := sql db {
 		select from User where id == id
-	}
+	}!
 
 	return results.first()
 }

examples/vweb_orm_jwt/src/auth_services.v

@@ -33,7 +33,7 @@ fn (mut app App) service_auth(username string, password string) !string {
 
 	users := sql db {
 		select from User where username == username
-	}
+	}!
 
 	if users.len == 0 {
 		return error('user not found')