Update

src/models/task.rs

@@ -0,0 +1,31 @@
+use rocket::serde::Serialize;
+use diesel::{self, result::QueryResult, Queryable, Insertable, prelude::*};
+
+table! {
+    tasks {
+        id -> Nullable<Integer>,
+        description -> Text,
+        completed -> Bool,
+    }
+}
+
+use tasks::dsl::{tasks as all_tasks};
+
+use crate::DbConn;
+
+#[derive(Serialize, Queryable, Insertable, Debug, Clone)]
+#[serde(crate = "rocket::serde")]
+#[table_name="tasks"]
+pub struct Task {
+    pub id: Option<i32>,
+    pub description: String,
+    pub completed: bool
+}
+
+impl Task {
+    pub async fn all(conn: &DbConn) -> QueryResult<Vec<Task>> {
+        conn.run(|c| {
+            all_tasks.order(tasks::id.desc()).load::<Task>(c)
+        }).await
+    }
+}