Mercurial > p > roundup > code
annotate roundup/cgi/PageTemplates/MultiMapping.py @ 4546:d39c37fd2940 git
Repository conversion from Subversion to git.
| author | Eric S. Raymond <esr@thyrsus.com> |
|---|---|
| date | Tue, 18 Oct 2011 10:20:29 -0400 |
| parents | 81cb4860ca75 |
| children | 35ea9b1efc14 |
| rev | line source |
|---|---|
| 1049 | 1 import operator |
| 2 | |
| 3 class MultiMapping: | |
| 4 def __init__(self, *stores): | |
| 5 self.stores = list(stores) | |
| 6 def __getitem__(self, key): | |
| 7 for store in self.stores: | |
| 8 if store.has_key(key): | |
| 9 return store[key] | |
| 10 raise KeyError, key | |
| 11 _marker = [] | |
| 12 def get(self, key, default=_marker): | |
| 13 for store in self.stores: | |
| 14 if store.has_key(key): | |
| 15 return store[key] | |
| 16 if default is self._marker: | |
| 17 raise KeyError, key | |
| 18 return default | |
| 19 def __len__(self): | |
|
3345
81cb4860ca75
fix nameerror. backport candidate
Anthony Baxter <anthonybaxter@users.sourceforge.net>
parents:
1136
diff
changeset
|
20 return reduce(operator.add, [len(x) for x in self.stores], 0) |
| 1049 | 21 def push(self, store): |
| 22 self.stores.append(store) | |
| 23 def pop(self): | |
| 24 return self.stores.pop() | |
|
1136
7e193bbda38e
added generic item editing
Richard Jones <richard@users.sourceforge.net>
parents:
1049
diff
changeset
|
25 def items(self): |
|
7e193bbda38e
added generic item editing
Richard Jones <richard@users.sourceforge.net>
parents:
1049
diff
changeset
|
26 l = [] |
|
7e193bbda38e
added generic item editing
Richard Jones <richard@users.sourceforge.net>
parents:
1049
diff
changeset
|
27 for store in self.stores: |
|
7e193bbda38e
added generic item editing
Richard Jones <richard@users.sourceforge.net>
parents:
1049
diff
changeset
|
28 l = l + store.items() |
|
7e193bbda38e
added generic item editing
Richard Jones <richard@users.sourceforge.net>
parents:
1049
diff
changeset
|
29 return l |