Database definitions

lib/migrations/20210823_create_table.sql

@@ -0,0 +1,29 @@
+-- Projects
+CREATE TABLE project (
+	id INTEGER NOT NULL PRIMARY KEY,
+	name TEXT NOT NULL
+);
+CREATE UNIQUE INDEX project_name ON project (name);
+
+CREATE TABLE tag (
+	id INTEGER NOT NULL PRIMARY KEY,
+	label TEXT NOT NULL
+)
+CREATE UNIQUE INDEX tag_label ON tag (label);
+
+CREATE TABLE entry (
+	id INTEGER NOT NULL PRIMARY KEY,
+	start_ts DATETIME NOT NULL,
+	stop_ts DATETIME,
+	project_id INTEGER NOT NULL,
+	FOREIGN KEY (project_id) REFERENCES project (id)
+);
+
+CREATE TABLE entry_tags (
+	id INTEGER NOT NULL PRIMARY KEY,
+	entry_id INTEGER NOT NULL,
+	tag_id INTEGER NOT NULL,
+	CONSTRAINT UNIQUE (entry_id, tag_id),
+	FOREIGN KEY (entry_id) REFERENCES entry (id),
+	FOREIGN KEY (tag_id) REFERENCES tag (id)
+)

lib/src/database.rs

@@ -0,0 +1,16 @@
+use sqlx::sqlite::Sqlite;
+use sqlx::sqlite::SqliteConnectOptions;
+use sqlx::sqlite::SqlitePoolOptions;
+use sqlx::Pool;
+
+async fn connect() -> Result<Pool<Sqlite>, sqlx::Error> {
+    let pool = SqlitePoolOptions::new()
+        .connect_with(
+            SqliteConnectOptions::new()
+                .filename("testing.sqlite")
+                .create_if_missing(true),
+        )
+        .await?;
+    sqlx::migrate("migrations").run(&pool).await?;
+    Ok(pool)
+}

lib/src/lib.rs

@@ -1,3 +1,5 @@
+mod database;
+
 #[cfg(test)]
 mod tests {
     #[test]