git.maemo.org Git - gigfinder/blob - events.py

   1 import urllib
   2 import urllib2
   3
   4 from resultsparser import EventParser
   5
   6 class Events:
   7     def __init__(self):
   8         self.api_key = '1928a14bdf51369505530949d8b7e1ee'
   9         self.url_base = 'http://ws.audioscrobbler.com/2.0/'
  10         self.format = 'json'
  11         self.method = 'geo.getevents'
  12         self.parser = EventParser()
  13
  14     def get_events(self, lat, long, distance):
  15         """ Retrieve xml and parse into events list """
  16         xml = self.get_xml(lat, long, distance)
  17         events = self.parser.parse_xml(xml,
  18                                        lat,
  19                                        long)
  20         return self.sort_events(events)
  21
  22     def sort_events(self, events):
  23         """ Sort gig by distance """
  24         if len(events) > 1:
  25             events.sort(cmp=self.distance_cmp, key=lambda x: x['distance'])
  26         return events
  27
  28     def get_json(self, lat='', long='', distance=''):
  29         # testing json results
  30         lat = '51.5174'
  31         long = '-0.0829'
  32         distance = '10'
  33         params = urllib.urlencode({'method': self.method,
  34                                    'api_key': self.api_key,
  35                                    'distance': distance,
  36                                    'long': long,
  37                                    'lat': lat,
  38                                    'format': self.format})
  39         url = '%s?%s' % (self.url_base, params)
  40         request = urllib2.Request(url, None)
  41         response = urllib2.urlopen(request)
  42         return response
  43
  44     def get_xml(self, lat, long, distance):
  45         """ Return xml from lastfm """
  46         params = urllib.urlencode({'method': self.method,
  47                                    'api_key': self.api_key,
  48                                    'distance': distance,
  49                                    'long': long,
  50                                    'lat': lat})
  51         response = urllib.urlopen(self.url_base, params)
  52         return response.read()
  53
  54     def distance_cmp(self, x, y):
  55         """ Compare distances for list sort """
  56         if x > y:
  57             return 1
  58         elif x == y:
  59             return 0
  60         else:
  61             return -1