add series support

calibre-db/src/data/series.rs

@@ -26,17 +26,23 @@ impl Series {
         conn: &Connection,
         limit: u64,
         cursor: Option<&str>,
-        sort_order: SortOrder,
+        sort_order: &SortOrder,
     ) -> Result<Vec<Self>, DataStoreError> {
-        let pagination = Pagination::new("sort", cursor, limit, sort_order);
+        let pagination = Pagination::new("sort", cursor, limit, *sort_order);
         pagination.paginate(
             conn,
-            "SELECT id, title, sort, path FROM series",
+            "SELECT id, name, sort FROM series",
             &[],
             Self::from_row,
         )
     }
 
+    pub fn scalar_series(conn: &Connection, id: u64) -> Result<Self, DataStoreError> {
+        let mut stmt = conn.prepare("SELECT id, name, sort FROM series WHERE id = (:id)")?;
+        let params = named_params! { ":id": id };
+        Ok(stmt.query_row(params, Self::from_row)?)
+    }
+
     pub fn book_series(
         conn: &Connection,
         book_id: u64,
@@ -61,4 +67,12 @@ impl Series {
             Err(e) => Err(DataStoreError::SqliteError(e)),
         }
     }
+
+    pub fn has_previous_series(conn: &Connection, sort_name: &str) -> Result<bool, DataStoreError> {
+        Pagination::has_prev_or_more(conn, "series", sort_name, &SortOrder::DESC)
+    }
+
+    pub fn has_more_series(conn: &Connection, sort_name: &str) -> Result<bool, DataStoreError> {
+        Pagination::has_prev_or_more(conn, "series", sort_name, &SortOrder::ASC)
+    }
 }