add CSV database reader

1 files changed, 22 insertions, 0 deletions

diff --git a/vk/utils/tracking/db/reader/csv.py b/vk/utils/tracking/db/reader/csv.py
new file mode 100644
index 0000000..b66e397
--- /dev/null
+++ b/vk/utils/tracking/db/reader/csv.py
@@ -0,0 +1,22 @@
+# Copyright 2016 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is licensed under the terms of the MIT License.
+# See LICENSE.txt for details.
+
+import csv
+
+from ..record import Record
+
+class Reader:
+    def __init__(self, path):
+        self._fd = open(path)
+        self._reader = csv.reader(self._fd)
+
+    def __enter__(self):
+        self._fd.__enter__()
+        return self
+
+    def __exit__(self, *args):
+        self._fd.__exit__(*args)
+
+    def __iter__(self):
+        return map(Record.from_row, self._reader)