Source Code for Module lastfm.mixins.taggable

 1  #!/usr/bin/env python 
 2   
 3  __author__ = "Abhinav Sarkar <abhinav@abhinavsarkar.net>" 
 4  __version__ = "0.2" 
 5  __license__ = "GNU Lesser General Public License" 
 6   
 7  from lastfm.base import LastfmBase 
 8  from lastfm.safelist import SafeList 
 9   
10 -class Taggable(object): 
11 -    def init(self, api): 
12          self._api = api 
13           
14      @LastfmBase.cached_property 
15 -    def tags(self): 
16          from lastfm.tag import Tag 
17          params = self._default_params({'method': '%s.getTags' % self.__class__.__name__.lower()}) 
18          data = self._api._fetch_data(params, sign = True, session = True, no_cache = True).find('tags') 
19          return SafeList([ 
20                         Tag( 
21                             self._api, 
22                             name = t.findtext('name'), 
23                             url = t.findtext('url') 
24                             ) 
25                         for t in data.findall('tag') 
26                         ], 
27                         self.add_tags, self.remove_tag) 
28       
29 -    def add_tags(self, tags): 
30          from lastfm.tag import Tag 
31          while(len(tags) > 10): 
32                          section = tags[0:9] 
33                          tags = tags[9:] 
34                          self.add_tags(section) 
35           
36          if len(tags) == 0: return 
37   
38          tagnames = [] 
39          for tag in tags: 
40              if isinstance(tag, Tag): 
41                  tagnames.append(tag.name) 
42              elif isinstance(tag, str): 
43                  tagnames.append(tag) 
44           
45          params = self._default_params({ 
46              'method': '%s.addTags' % self.__class__.__name__.lower(), 
47              'tags': ",".join(tagnames) 
48              })        
49          self._api._post_data(params) 
50          self._tags = None 
51           
52 -    def remove_tag(self, tag): 
53          from lastfm.tag import Tag 
54          if isinstance(tag, Tag): 
55              tag = tag.name 
56               
57          params = self._default_params({ 
58              'method': '%s.removeTag' % self.__class__.__name__.lower(), 
59              'tag': tag 
60              }) 
61          self._api._post_data(params) 
62          self._tags = None 
63           
64 -    def _default_params(self, extra_params = {}): 
65          return extra_params 
66