From b80dcafc2483269e4d9121c7633cb51ad54b82e3 Mon Sep 17 00:00:00 2001 From: Georg Hartmann Date: Mon, 28 Jun 2021 00:34:53 -0500 Subject: [PATCH] tutorials: always add the filename as first comment in example files (#10594) --- .../building_a_simple_web_blog_with_vweb/README.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tutorials/building_a_simple_web_blog_with_vweb/README.md b/tutorials/building_a_simple_web_blog_with_vweb/README.md index 9335498964..16d2d82a50 100644 --- a/tutorials/building_a_simple_web_blog_with_vweb/README.md +++ b/tutorials/building_a_simple_web_blog_with_vweb/README.md @@ -99,6 +99,7 @@ Vweb often uses convention over configuration and adding a new action requires no routing rules either: ```v oksyntax +// blog.v import vweb import time @@ -138,6 +139,7 @@ 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 ignore +// blog.v pub fn (mut app App) index() vweb.Result { message := 'Hello, world from Vweb!' return $vweb.html() @@ -185,6 +187,7 @@ We'll be using V's builtin ORM and a SQLite database. Create a SQLite file with the schema: ```sql +-- blog.sqlite drop table if exists Article; create table Article ( @@ -210,6 +213,7 @@ Run the file with `sqlite3 blog.db < blog.sqlite`. Add a SQLite handle to `App`: ```v oksyntax +// blog.v import sqlite import vweb @@ -225,6 +229,7 @@ mut: Add the `init_server()` method where we'll connect to a database: ```v oksyntax +// blog.v pub fn (mut app App) init_server() { db := sqlite.connect(':memory:') or { panic(err) } db.exec('create table `Article` (id integer primary key, title text default "", text text default "")') @@ -260,6 +265,7 @@ pub fn (app &App) find_all_articles() []Article { Let's fetch the articles in the `index()` action: ```v ignore +// blog.v pub fn (app &App) index() vweb.Result { articles := app.find_all_articles() return $vweb.html() @@ -292,6 +298,8 @@ The built-in V ORM uses a syntax very similar to SQL. The queries are built with For example, if we only wanted to find articles with ids between 100 and 200, we'd do: ```v oksyntax +// article.v + return sql app.db { select from Article where id >= 100 && id <= 200 } @@ -300,6 +308,7 @@ return sql app.db { Retrieving a single article is very simple: ```v oksyntax +// article.v pub fn (app &App) retrieve_article() ?Article { return sql app.db { select from Article limit 1 @@ -311,6 +320,7 @@ V ORM uses V's optionals for single values, which is very useful, since bad queries will always be handled by the developer: ```v oksyntax +// article.v article := app.retrieve_article(10) or { app.text('Article not found') return @@ -338,6 +348,7 @@ Create `new.html`: ``` ```v oksyntax +// article.v import vweb pub fn (mut app App) new_article() vweb.Result { @@ -376,6 +387,7 @@ to render everything on the client or need an API, creating JSON endpoints in V is very simple: ```v oksyntax +// article.v import vweb import json