tutorials: fix blog code

.github/workflows/ci.yml

@@ -117,7 +117,7 @@ jobs:
     - name: Test v tutorials
       run: |
         cd tutorials/code/blog
-        v .
+        ../../../v .
 
 
   # Alpine docker pre-built container

tutorials/code/blog/blog.v

@@ -7,6 +7,7 @@ import json
 
 struct App {
 	vweb.Context
+mut:
 	db sqlite.DB
 }
 
@@ -31,8 +32,12 @@ pub fn (app &App) index() vweb.Result {
 }
 
 pub fn (mut app App) init_once() {
-	db := sqlite.connect('blog.db') or { panic(err) }
+	app.db = sqlite.connect('blog.db') or { panic(err) }
-	app.db = db
+	app.db.exec('create table if not exists article (' +
+	'id integer primary key, ' + 
+	"title text default ''," +
+	"text text default ''" +
+	');')
 }
 
 pub fn (mut app App) init() {
@@ -42,6 +47,8 @@ pub fn (mut app App) new() vweb.Result {
 	return $vweb.html()
 }
 
+[post]
+['/new_article']
 pub fn (mut app App) new_article() vweb.Result {
 	title := app.form['title']
 	text := app.form['text']
@@ -53,6 +60,7 @@ pub fn (mut app App) new_article() vweb.Result {
 		title: title
 		text: text
 	}
+	println('posting article')
 	println(article)
 	sql app.db {
 		insert article into Article

vlib/sqlite/sqlite.v

@@ -150,7 +150,6 @@ pub fn (db DB) exec(query string) ([]Row, int) {
 		}
 		rows << row
 	}
-
 	C.sqlite3_finalize(stmt)
 	return rows, res
 }