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fbad3a9f | 1 | # GNU MediaGoblin -- federated, autonomous media hosting |
7f4ebeed | 2 | # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. |
fbad3a9f E |
3 | # |
4 | # This program is free software: you can redistribute it and/or modify | |
5 | # it under the terms of the GNU Affero General Public License as published by | |
6 | # the Free Software Foundation, either version 3 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU Affero General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU Affero General Public License | |
15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | ||
17 | ||
1e3a0e0c | 18 | from sqlalchemy.types import TypeDecorator, Unicode, TEXT |
cf27accc | 19 | import json |
02db7e0a E |
20 | |
21 | ||
22 | class PathTupleWithSlashes(TypeDecorator): | |
23 | "Represents a Tuple of strings as a slash separated string." | |
24 | ||
25 | impl = Unicode | |
26 | ||
27 | def process_bind_param(self, value, dialect): | |
28 | if value is not None: | |
51fba991 E |
29 | if len(value) == 0: |
30 | value = None | |
31 | else: | |
32 | value = '/'.join(value) | |
02db7e0a E |
33 | return value |
34 | ||
35 | def process_result_value(self, value, dialect): | |
36 | if value is not None: | |
37 | value = tuple(value.split('/')) | |
38 | return value | |
cf27accc E |
39 | |
40 | ||
41 | # The following class and only this one class is in very | |
42 | # large parts based on example code from sqlalchemy. | |
43 | # | |
44 | # The original copyright notice and license follows: | |
45 | # Copyright (C) 2005-2011 the SQLAlchemy authors and contributors <see AUTHORS file> | |
46 | # | |
47 | # This module is part of SQLAlchemy and is released under | |
48 | # the MIT License: http://www.opensource.org/licenses/mit-license.php | |
49 | # | |
50 | class JSONEncoded(TypeDecorator): | |
51 | "Represents an immutable structure as a json-encoded string." | |
52 | ||
1e3a0e0c | 53 | impl = TEXT |
cf27accc E |
54 | |
55 | def process_bind_param(self, value, dialect): | |
56 | if value is not None: | |
57 | value = json.dumps(value) | |
58 | return value | |
59 | ||
60 | def process_result_value(self, value, dialect): | |
61 | if value is not None: | |
62 | value = json.loads(value) | |
63 | return value |