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building db support with diesel.rs

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This commit is contained in:
Arthur Gerbaud
2019-01-27 21:52:46 +01:00
parent 940927d376
commit fb4d24ef44
14 changed files with 113 additions and 6 deletions
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1
cookbook/.env Normal file
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@@ -0,0 +1 @@
DATABASE_URL=db.sqlite3

3
cookbook/Cargo.toml
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@@ -5,3 +5,6 @@ authors = ["artus <artus@landoftheunicorn.hd.free.fr>"]
edition = "2018"
[dependencies]
libsqlite3-sys = { version = "*", features = ["bundled"] }
diesel = { version = "1.4.1", features = ["sqlite"] }
dotenv = "0.9.0"

BIN
cookbook/db.sqlite3 Normal file
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5
cookbook/diesel.toml Normal file
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@@ -0,0 +1,5 @@
# For documentation on how to configure this file,
# see diesel.rs/guides/configuring-diesel-cli
[print_schema]
file = "src/schema.rs"

0
cookbook/migrations/.gitkeep Normal file
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2
cookbook/migrations/2019-01-27-201901_create_recipes/down.sql Normal file
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@@ -0,0 +1,2 @@
-- This file should undo anything in `up.sql`
DROP TABLE recipes

8
cookbook/migrations/2019-01-27-201901_create_recipes/up.sql Normal file
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@@ -0,0 +1,8 @@
-- Your SQL goes here
CREATE TABLE recipes (
id INTEGER PRIMARY KEY NOT NULL,
title VARCHAR NOT NULL,
category INTEGER NOT NULL,
ingredients TEXT NOT NULL,
preparation TEXT NOT NULL
)

23
cookbook/src/bin/show_recipes.rs Normal file
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@@ -0,0 +1,23 @@
extern crate cookbook;
extern crate diesel;
use self::cookbook::*;
use self::models::*;
use self::diesel::prelude::*;
fn main() {
use cookbook::schema::recipes::dsl::*;
let conn = establish_connection();
let result = recipes
.limit(5)
.load::<Recipe>(&conn)
.expect("Error loading recipes");
println!("Here are {} recipes :", result.len());
for rec in result {
println!("{}", rec.title);
println!("-------------\n");
println!("{}", rec.ingredients);
}
}

21
cookbook/src/lib.rs
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@@ -1,7 +1,28 @@
#[macro_use]
extern crate diesel;
extern crate dotenv;
pub mod schema;
pub mod models;
mod recipe;
mod storage;
mod importer;
use diesel::prelude::*;
use dotenv::dotenv;
use std::env;
pub fn establish_connection() -> SqliteConnection {
dotenv().ok();
let db_url = env::var("DATABASE_URL").expect("DATABASE_URL must be set !");
SqliteConnection::establish(&db_url)
.expect(&format!("Error connecting to {}", db_url))
}
#[cfg(test)]
mod tests {
#[test]

8
cookbook/src/models.rs Normal file
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@@ -0,0 +1,8 @@
#[derive(Queryable)]
pub struct Recipe {
pub id: i32,
pub title: String,
pub category: i32,
pub ingredients: String,
pub preparation: String,
}

3
cookbook/src/recipe.rs
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@@ -40,8 +40,7 @@ impl Ingredient {
pub(super) fn new(name: String) -> Ingredient {
Ingredient {
alias: vec![name],
..
Default::default()
..Default::default()
}
}

9
cookbook/src/schema.rs Normal file
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@@ -0,0 +1,9 @@
table! {
recipes (id) {
id -> Integer,
title -> Text,
category -> Integer,
ingredients -> Text,
preparation -> Text,
}
}

6
planner/src/solver.rs
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@@ -122,8 +122,7 @@ impl<'a, V> ProblemBuilder<'a, V> {
})
}
pub fn add_variable(
mut self,
pub fn add_variable(mut self,
name: String,
domain: &'a Domain<V>,
value: Option<&'a V>,
@@ -153,8 +152,7 @@ mod tests {
let mut problem: Problem<_> = Problem::build()
.add_variable(String::from("Left"), &domain, None)
.add_variable(String::from("Right"), &domain, None)
.add_constraint(
|assign: &Variables<i32>| {
.add_constraint(|assign: &Variables<i32>| {
assign.get("Left").unwrap() == assign.get("Right").unwrap()
})
.finish();

30
web/index.html Normal file
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@@ -0,0 +1,30 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.22/dist/vue.js"></script>
</head>
<body>
<div id="app">
<h1>Cook Assistant</h1>
<p>Fetch value from wasm : {{ value }}</p>
<strong>{{ message }}</strong>
</div>
</body>
<script type="text/javascript">
var getWasmValue = function() {
return 42
};
var app = new Vue({
el: '#app',
data: {
message: 'Hello ! We are trying out here...',
},
computed: {
value: getWasmValue,
}
});
</script>
</html>