tutorials: more blog fixes (#5657)

tutorials/building-a-simple-web-blog-with-vweb.md

@@ -64,14 +64,13 @@ fn main() {
 	vweb.run<App>(8081)
 }
 
-fn (mut app App) index() {
+fn (mut app App) index() vweb.Result {
 	app.vweb.text('Hello, world from vweb!')
+	return vweb.Result{}
 }
 
 pub fn (app &App) init() {}
 pub fn (app &App) init_once() {}
-pub fn (app &App) reset() {}
-
 ```
 
 Run it with
@@ -115,7 +114,6 @@ text, which isn't frequently used in websites.
 
 ### HTML View
 
-
 Let's return an HTML view instead. Create `index.html` in the same directory:
 
 ```html
@@ -134,9 +132,9 @@ Let's return an HTML view instead. Create `index.html` in the same directory:
 and update our `index()` action so that it returns the HTML view we just created:
 
 ```v
-fn (mut app App) index() {
+fn (mut app App) index() vweb.Result {
 	message := 'Hello, world from Vweb!'
-	$vweb.html()
+	return $vweb.html()
 }
 ```
 
@@ -170,48 +168,47 @@ into a single binary file together with the web application itself.
 
 - All errors in the templates are guaranteed to be caught during compilation.
 
+
 ### Fetching data with V ORM
 
 Now let's display some articles!
 
-We'll be using V's builtin ORM and a Postgres database. (V ORM will also
-support MySQL, SQLite, and SQL Server soon.)
+We'll be using V's builtin ORM and a SQLite database. 
+(V ORM will also support MySQL, Postgre, and SQL Server soon.)
 
-Create a SQL file with the schema:
+Create a SQLite file with the schema:
 ```sql
-create database blog;
+drop table Article;
 
-\c blog
-
-drop table articles;
-
-create table articles (
-	id serial primary key,
-	title text default '',
-	text text default ''
+create table Article (
+	id integer primary key,
+	title text default "",
+	text text default ""
 );
 
-insert into articles (title, text) values (
-	'Hello, world!',
-	'V is great.'
+insert into Article (title, text) values (
+	"Hello, world!",
+	"V is great."
 );
 
-insert into articles (title, text) values (
-	'Second post.',
-	'Hm... what should I write about?'
+insert into Article (title, text) values (
+	"Second post.",
+	"Hm... what should I write about?"
 );
 ```
 
-Run the file with `psql -f blog.sql`.
+Run the file with `sqlite3 blog.db < blog.sqlite`.
 
 
-Add a Postgres DB handle to `App`:
+Add a SQLite handle to `App`:
 
 ```v
+import sqlite
+
 struct App {
 pub mut:
 	vweb vweb.Context
-	db   pg.DB
+	db   sqlite.DB
 }
 ```
 
@@ -221,7 +218,10 @@ Modify the `init_once()` method we created earlier to connect to a database:
 
 ```v
 pub fn (mut app App) init_once() {
-	db := sqlite.connect(':memory:') 	or { panic(err) }
+	db := sqlite.connect(':memory:') or { panic(err) }
+	db.exec('create table `Article` (id integer primary key, title text default "", text text default "")')
+	db.exec('insert into Article (title, text) values ("Hello, world!", "V is great.")')
+	db.exec('insert into Article (title, text) values ("Second post.", "Hm... what should I write about?")')
 	app.db = db
 }
 ```
@@ -233,7 +233,7 @@ Create a new file `article.v`:
 
 
 ```v
-
+// article.v
 module main
 
 struct Article {
@@ -342,6 +342,7 @@ pub fn (mut app App) new_article() vweb.Result {
 		title: title
 		text: text
 	}
+	println(article)
 	sql app.db {
 		insert article into Article
 	}

tutorials/code/blog/article.v

@@ -8,6 +8,6 @@ struct Article {
 
 pub fn (app &App) find_all_articles() []Article {
 	return sql app.db {
-		select from Article 
+		select from Article
 	}
 }

tutorials/code/blog/blog.sql

@@ -1,22 +0,0 @@
-create database blog;
-
-\c blog
-
-drop table articles;
-
-create table articles (
-	id serial primary key,
-	title text default '',
-	text text default ''
-);
-
-insert into articles (title, text) values (
-	'Hello, world!',
-	'V is great.'
-);
-
-insert into articles (title, text) values (
-	'Second post.',
-	'Hm... what should I write about?'
-);
-

tutorials/code/blog/blog.sqlite

@@ -0,0 +1,17 @@
+drop table Article;
+
+create table Article (
+	id integer primary key,
+	title text default "",
+	text text default ""
+);
+
+insert into Article (title, text) values (
+	"Hello, world!",
+	"V is great."
+);
+
+insert into Article (title, text) values (
+	"Second post.",
+	"Hm... what should I write about?"
+);

tutorials/code/blog/blog.v

@@ -15,26 +15,27 @@ fn main() {
 	vweb.run<App>(8081)
 }
 
-fn (mut app App) index_text() {
+/*
+fn (mut app App) index_text() vweb.Result {
 	app.vweb.text('Hello, world from vweb!')
+	return vweb.Result{}
 }
 
-/*
-fn (app &App) index_html() {
-	message := 'Hello, world from vweb!'
-	$vweb.html()
+fn (app &App) index_html() vweb.Result {
+	message := 'Hello, world from Vweb!'
+	return $vweb.html()
 }
 */
+
 fn (app &App) index() vweb.Result {
 	articles := app.find_all_articles()
 	return $vweb.html()
 }
 
 pub fn (mut app App) init_once() {
-	db := sqlite.connect(':memory:') or {
+	db := sqlite.connect('blog.db') or {
 		panic(err)
 	}
-	db.exec('create table `Article` (id integer primary key, title text default "", text text default "")')
 	app.db = db
 }
 
@@ -49,10 +50,10 @@ pub fn (mut app App) new_article() vweb.Result {
 	title := app.vweb.form['title']
 	text := app.vweb.form['text']
 	if title == '' || text == '' {
-		app.vweb.text('Empty text/titile')
+		app.vweb.text('Empty text/title')
 		return vweb.Result{}
 	}
-	article := Article{
+	article := Article {
 		title: title
 		text: text
 	}
@@ -60,7 +61,7 @@ pub fn (mut app App) new_article() vweb.Result {
 	sql app.db {
 		insert article into Article
 	}
-	return app.vweb.redirect('/article/')
+	return app.vweb.redirect('/')
 }
 
 pub fn (mut app App) articles() {

tutorials/code/blog/index.html

@@ -8,9 +8,8 @@
 			<b>@article.title</b> <br>
 			@article.text
 		</div>
+		<br>
 	@end
-	<br>
 	<a href='/new'>New article</a>
 </body>
 </html>
-