1 from datetime import date
2 from functools import wraps
3 from os.path import join
4 from os import listdir, stat
5 from shutil import move, rmtree
6 from django.conf import settings
10 from django.db.models import Count
15 View decorator, which puts tab info on a request.
19 def wrapped(request, *args, **kwargs):
20 request.catalogue_active_tab = tab
21 return f(request, *args, **kwargs)
26 def cached_in_field(field_name):
30 def wrapped(self, *args, **kwargs):
31 value = getattr(self, field_name)
33 value = f(self, *args, **kwargs)
34 type(self)._default_manager.filter(pk=self.pk).update(**{field_name: value})
40 def parse_isodate(isodate):
42 return date(*[int(p) for p in isodate.split('-')])
43 except (AttributeError, TypeError, ValueError):
44 raise ValueError("Not a date in ISO format.")
47 class GalleryMerger(object):
48 def __init__(self, dest_gallery, src_gallery):
49 assert isinstance(dest_gallery, str)
50 assert isinstance(src_gallery, str)
51 self.dest = dest_gallery
52 self.src = src_gallery
59 return join(settings.MEDIA_ROOT, settings.IMAGE_DIR, gallery)
63 m = re.match(r"^([0-9])-", name)
65 return int(m.groups()[0])
69 def set_prefix(name, prefix, always=False):
70 m = not always and re.match(r"^([0-9])-", name)
71 return "%1d-%s" % (prefix, m and name[2:] or name)
75 "Check if we have gallery size recorded"
76 return self.dest_size is not None
84 files = listdir(self.path(self.dest))
86 self.dest_size = len(files)
87 files_other = listdir(self.path(self.src))
89 self.src_size = len(files_other)
91 if files and files_other:
92 print "compare %s with %s" % (files[-1], files_other[0])
94 join(self.path(self.dest), files[-1]),
95 join(self.path(self.src), files_other[0]),
103 renamed_files_other = {}
106 # check if all elements of my files have a prefix
107 files_prefixed = True
109 p = self.get_prefix(f)
111 if p > last_pfx: last_pfx = p
113 files_prefixed = False
116 # if not, add a 0 prefix to them
117 if not files_prefixed:
120 renamed_files[f] = self.set_prefix(f, 0, True)
122 # two cases here - either all are prefixed or not.
123 files_other_prefixed = True
124 for f in files_other:
125 pfx = self.get_prefix(f)
127 if not pfx in prefixes:
129 prefixes[pfx] = last_pfx
130 renamed_files_other[f] = self.set_prefix(f, prefixes[pfx])
132 # ops, not all files here were prefixed.
133 files_other_prefixed = False
136 # just set a 1- prefix to all of them
137 if not files_other_prefixed:
138 for f in files_other:
139 renamed_files_other[f] = self.set_prefix(f, 1, True)
141 # finally, move / rename files.
142 for frm, to in renamed_files.items():
143 move(join(self.path(self.dest), frm),
144 join(self.path(self.dest), to))
145 for frm, to in renamed_files_other.items():
146 move(join(self.path(self.src), frm),
147 join(self.path(self.dest), to))
149 rmtree(join(self.path(self.src)))