draft bookmark toggle action

src/profile/bookmark/database.rs

@@ -31,6 +31,26 @@ impl Database {
         let tx = readable.unchecked_transaction().unwrap();
         select(&tx, self.profile_id, request).unwrap()
     }
+
+    // Setters
+
+    pub fn add(&self, time: DateTime, request: String) -> Result<i64, ()> {
+        // Begin new transaction
+        let mut writable = self.connection.write().unwrap();
+        let tx = writable.transaction().unwrap();
+
+        // Create new record
+        insert(&tx, self.profile_id, time, request).unwrap();
+
+        // Hold insert ID for result
+        let id = last_insert_id(&tx);
+
+        // Done
+        match tx.commit() {
+            Ok(_) => Ok(id),
+            Err(_) => Err(()), // @TODO
+        }
+    }
 }
 
 // Low-level DB API
@@ -102,3 +122,7 @@ pub fn select(
 pub fn delete(tx: &Transaction, id: i64) -> Result<usize, Error> {
     tx.execute("DELETE FROM `profile_bookmark` WHERE `id` = ?", [id])
 }
+
+pub fn last_insert_id(tx: &Transaction) -> i64 {
+    tx.last_insert_rowid()
+}

src/profile/bookmark/memory.rs

@@ -9,6 +9,7 @@ pub struct Memory {
 impl Memory {
     // Constructors
 
+    /// Create new `Self`
     pub fn new() -> Self {
         Self {
             index: RefCell::new(HashMap::new()),
@@ -32,6 +33,7 @@ impl Memory {
         index.insert(request, time);
     }
 
+    /// Check request exist in memory index
     pub fn is_exist(&self, request: &str) -> bool {
         self.index.borrow().get(request).is_some()
     }