Working with repositories

lib/migrations/20210823_create_table.sql

@@ -1,6 +1,6 @@
 -- Projects
 CREATE TABLE project (
-	id INTEGER NOT NULL PRIMARY KEY,
+	code TEXT NOT NULL PRIMARY KEY,
 	name TEXT NOT NULL
 );
 CREATE UNIQUE INDEX project_name ON project (name);

lib/src/domain/command.rs

@@ -21,7 +21,7 @@ pub trait Dto {}
 
 /// Trait that all commands must implement.
 pub trait Command<T: Dto> {
-    fn execute(self) -> Result<T, CommandError>;
+    async fn execute(self) -> Result<T, CommandError>;
 }
 
 /// Errors produced by invalid commands

lib/src/domain/project/create.rs

@@ -16,11 +16,12 @@
   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
+use super::dto::Project;
+use super::repository::Repository;
+use crate::database;
 use crate::domain::command::Command;
 use crate::domain::command::CommandError;
 
-use super::dto::Project;
-
 struct Create(Project);
 
 impl Create {
@@ -30,7 +31,9 @@ impl Create {
 }
 
 impl Command<Project> for Create {
-    fn execute(self) -> Result<Project, CommandError> {
+    async fn execute(self) -> Result<Project, CommandError> {
+        let pool = database::connect().await?;
+        let repo = Repository::new(&pool);
         Ok(self.0)
     }
 }

lib/src/domain/project/dto.rs

@@ -30,6 +30,14 @@ impl Project {
             name: name.into(),
         }
     }
+
+    pub fn code(&self) -> &str {
+        &self.code
+    }
+
+    pub fn name(&self) -> &str {
+        &self.name
+    }
 }
 
 impl Dto for Project {}

lib/src/domain/project/mod.rs

@@ -1,2 +1,21 @@
+/*
+  TIN - Time tracking application
+  Copyright (C) 2021  Julio Biason
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 pub mod create;
 pub mod dto;
+pub mod repository;

lib/src/domain/project/repository.rs

@@ -0,0 +1,41 @@
+/*
+  TIN - Time tracking application
+  Copyright (C) 2021  Julio Biason
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU Affero General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+use sqlx::sqlite::Sqlite;
+use sqlx::Pool;
+
+use super::dto::Project;
+
+struct Repository<'a> {
+    pool: &'a Pool<Sqlite>,
+}
+
+impl<'a> Repository<'a> {
+    fn new(pool: &'a Pool<Sqlite>) -> Self {
+        Self { pool }
+    }
+
+    async fn save(&self, project: Project) -> Result<Project, sqlx::Error> {
+        sqlx::query(r#"INSERT INTO project (code, name) VALUES (?, ?)"#)
+            .bind(&project.code())
+            .bind(&project.name())
+            .execute(self.pool)
+            .await?;
+        Ok(project)
+    }
+}