Added show command, which shows annotations

src/main.rs

@@ -19,6 +19,7 @@ fn add_task(conn: &Connection, task: Task) -> Result<(), rusqlite::Error> {
         params![task.description, created]
     )?;
 
+    // TODO: This is borked.
     let row_id = conn.last_insert_rowid();
     for annotation in task.annotations.iter() {
         add_annotation(conn, row_id, annotation)?;
@@ -74,6 +75,48 @@ fn show_task_list(conn: &Connection) -> Result<(), rusqlite::Error> {
     Ok(())
 }
 
+fn show_task_details(conn: &Connection, task_id: i64) -> Result<(), rusqlite::Error> {
+    let mut statement = conn.prepare("SELECT * FROM tasks WHERE id = ?")?;
+
+    let task_iterator = statement.query_map(params![task_id], |row| {
+        let created: String = row.get(2)?;
+        Ok(Task {
+            id: row.get(0)?,
+            description: row.get(1)?,
+            created: DateTime::parse_from_rfc2822(&created).unwrap().with_timezone(&Utc),
+            annotations: vec![]
+        })
+    })?;
+
+    let mut annotation_statement = conn.prepare("SELECT * FROM annotations WHERE task_id = ?")?;
+
+    let annotation_iterator = annotation_statement.query_map(params![task_id], |row| {
+        let annotation: String = row.get(2)?;
+        Ok(annotation)
+    })?;
+
+    let mut annotation_table = Table::new();
+    annotation_table.set_format(*format::consts::FORMAT_NO_BORDER);
+    for annotationr in annotation_iterator {
+        let annotation = annotationr.unwrap();
+        annotation_table.add_row(row![annotation]);
+    }
+
+    let mut table = Table::new();
+    table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
+    table.set_titles(row!["id", "description", "created", "annotations"]);
+    for taskr in task_iterator {
+        let task = taskr.unwrap();
+        let id = task.id.unwrap();
+
+        table.add_row(row![id, task.description, task.created.to_rfc2822(), annotation_table]);
+    }
+
+    table.printstd();
+
+    Ok(())
+}
+
 fn initialize() -> Result<Connection, rusqlite::Error> {
     let conn = Connection::open("test.db")?;
 
@@ -177,7 +220,8 @@ fn main() -> () {
                 show_task_list(&conn).expect("Could not show task list.");
             },
             ("show", Some(submatches)) => {
-                println!("Not implemented yet");
+                show_task_details(&conn, value_t!(submatches.value_of("task_id"), i64).unwrap())
+                    .expect("Could not get task details.");
             },
             ("annotate", Some(submatches)) => {
                 add_annotation(