docs, orm: update examples (#18106)

vlib/orm/README.md

@@ -12,7 +12,7 @@
 - `[unique]` sets the field as unique
 - `[unique: 'foo']` adds the field to a unique group
 - `[nonull]` set the field as not null
-- `[skip]` field will be skipped
+- `[skip]` or `[sql: '-']` field will be skipped
 - `[sql: type]` where `type` is a V type such as `int` or `f64`, or special type `serial`
 - `[sql: 'name']` sets a custom column name for the field
 - `[sql_type: 'SQL TYPE']` sets the sql type which is used in sql
@@ -22,6 +22,8 @@
 ## Usage
 
 ```v ignore
+import time
+
 struct Foo {
     id          int         [primary; sql: serial]
     name        string      [nonull]
@@ -36,7 +38,6 @@ struct Child {
     parent_id int
     name      string
 }
-
 ```
 
 ### Create
@@ -44,7 +45,7 @@ struct Child {
 ```v ignore
 sql db {
     create table Foo
-}
+}!
 ```
 
 ### Drop
@@ -52,16 +53,16 @@ sql db {
 ```v ignore
 sql db {
     drop table Foo
-}
+}!
 ```
 
 ### Insert
 
 ```v ignore
-var := Foo{
+foo := Foo{
     name:       'abc'
     created_at: time.now()
-    updated_at: time.now().str()
+    updated_at: time.now()
     deleted_at: time.now()
     children: [
         Child{
@@ -74,8 +75,8 @@ var := Foo{
 }
 
 sql db {
-    insert var into Foo
-}
+    insert foo into Foo
+}!
 ```
 
 ### Update
@@ -83,31 +84,31 @@ sql db {
 ```v ignore
 sql db {
     update Foo set name = 'cde', updated_at = time.now() where name == 'abc'
-}
+}!
 ```
 
 ### Delete
 ```v ignore
 sql db {
     delete from Foo where id > 10
-}
+}!
 ```
 
 ### Select
 ```v ignore
 result := sql db {
     select from Foo where id == 1
-}
+}!
 ```
 ```v ignore
 result := sql db {
     select from Foo where id > 1 && name != 'lasanha' limit 5
-}
+}!
 ```
 ```v ignore
 result := sql db {
     select from Foo where id > 1 order by id
-}
+}!
 ```
 
 ### Example
@@ -127,10 +128,7 @@ fn main() {
 		user: 'user'
 		password: 'password'
 		dbname: 'dbname'
-	}) or {
-		println(err)
-		return
-	}
+	})!
 
 	defer {
 		db.close()
@@ -138,7 +136,7 @@ fn main() {
 
 	sql db {
 		create table Member
-	}
+	}!
 
 	new_member := Member{
 		name: 'John Doe'
@@ -146,16 +144,15 @@ fn main() {
 
 	sql db {
 		insert new_member into Member
-	}
+	}!
 
-	selected_member := sql db {
+	selected_members := sql db {
 		select from Member where name == 'John Doe' limit 1
-	}
+	}!
+	john_doe := selected_members.first()
 
 	sql db {
-		update Member set name = 'Hitalo' where id == selected_member.id
+		update Member set name = 'Hitalo' where id == john_doe.id
+	}!
 }
-}
-
-
 ```