# HG changeset patch
# User dirk
# Date 1315578164 -7200
# Node ID f0afcd1c56565925d2d95b6c50a56fd565ee39f8
# Parent  91a24f4993188e5af28ecf592db87f864bbb5551
implement a couchdb mapping field that stores a datetime instance as a JSON array

diff -r 91a24f499318 -r f0afcd1c5656 backend/couchdb/ListDateTimeField.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/couchdb/ListDateTimeField.py	Fri Sep 09 16:22:44 2011 +0200
@@ -0,0 +1,14 @@
+
+from couchdb.mapping import Field
+from datetime import datetime
+
+class ListDateTimeField(Field):
+    def _to_python(self, value):
+        if isinstance(value, list):
+            return datetime(*value)
+        return value
+
+    def _to_json(self, value):
+        if isinstance(value, datetime):
+            return [ value.year, value.month, value.day, value.hour, value.minute, value.second ]
+        return value
diff -r 91a24f499318 -r f0afcd1c5656 tests/couchdb/ListDateTimeFieldTests.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/couchdb/ListDateTimeFieldTests.py	Fri Sep 09 16:22:44 2011 +0200
@@ -0,0 +1,54 @@
+
+from backend.couchdb.ListDateTimeField import ListDateTimeField
+from couchdb import Server
+from couchdb.mapping import Document, TextField
+from datetime import datetime
+import unittest
+
+class ListDateTimeFieldTests(unittest.TestCase):
+    def testToJsonValid(self):
+        value = datetime(2011, 9, 7, 15, 21, 0)
+        result = ListDateTimeField()._to_json(value)
+        self.assertEqual([2011, 9, 7, 15, 21, 0], result)
+
+    def testToJsonInvalid(self):
+        value = "this is invalid input"
+        result = ListDateTimeField()._to_json(value)
+        self.assertEqual(value, result)
+
+    def testToPythonValid(self):
+        value = [2011, 9, 7, 15, 21, 0]
+        result = ListDateTimeField()._to_python(value)
+        expected = datetime(2011, 9, 7, 15, 21, 0)
+        self.assertEqual(expected, result)
+
+    def testToPythonInvalid(self):
+        value = "this is invalid input"
+        result = ListDateTimeField()._to_python(value)
+        self.assertEqual(value, result)
+
+    def __testRoundTrip(self):
+        class Dummy(Document):
+            title = TextField()
+            date = ListDateTimeField()
+
+        server = Server()
+        database = server["hello-world"]
+
+        dummy = Dummy()
+        dummy.title = "created from unit test"
+        date = datetime.now().replace(microsecond=0)
+        dummy.date = date
+        dummy.store(database)
+        self.assertNotEqual(None, dummy.id)
+
+        dummy2 = Dummy.load(database, dummy.id)
+        self.assertNotEqual(None, dummy2)
+        self.assertFalse(dummy == dummy2)
+        self.assertEqual(date, dummy2.date)
+
+        del database[dummy.id]
+
+if __name__ == "__main__":
+    #import sys;sys.argv = ['', 'Test.testName']
+    unittest.main()
\ No newline at end of file