116 lines
4.2 KiB
Python
116 lines
4.2 KiB
Python
#!/usr/bin/env python
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__author__ = "Abhinav Sarkar <abhinav@abhinavsarkar.net>"
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__version__ = "0.2"
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__license__ = "GNU Lesser General Public License"
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__package__ = "lastfm"
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from lastfm.base import LastfmBase
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from lastfm.mixin import mixin
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from lastfm.decorators import cached_property, depaginate
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@mixin("crawlable", "searchable", "cacheable", "property_adder")
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class Venue(LastfmBase):
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"""A class representing a venue of an event"""
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class Meta(object):
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properties = ["id", "name", "location", "url"]
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def init(self, api, **kwargs):
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if not isinstance(api, Api):
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raise InvalidParametersError("api reference must be supplied as an argument")
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self._api = api
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super(Venue, self).init(**kwargs)
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@cached_property
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def events(self):
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params = self._default_params({'method': 'venue.getEvents'})
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data = self._api._fetch_data(params).find('events')
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return [
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Event.create_from_data(self._api, e)
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for e in data.findall('event')
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]
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@depaginate
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def get_past_events(self, limit = None, page = None):
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params = self._default_params({'method': 'venue.getPastEvents'})
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if limit is not None:
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params.update({'limit': limit})
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if page is not None:
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params.update({'page': page})
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data = self._api._fetch_data(params).find('events')
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total_pages = int(data.attrib['totalPages'])
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yield total_pages
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for e in data.findall('event'):
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yield Event.create_from_data(self._api, e)
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@cached_property
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def past_events(self):
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return self.get_past_events()
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@staticmethod
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def _get_all(seed_venue):
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def gen():
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for event in Event.get_all(seed_venue.past_events[0]):
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yield event.venue
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return (seed_venue, ['id'], lambda api, hsh: gen())
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def _default_params(self, extra_params = {}):
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if not self.id:
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raise InvalidParametersError("venue id has to be provided.")
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params = {'venue': self.id}
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params.update(extra_params)
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return params
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@staticmethod
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def _search_yield_func(api, venue):
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latitude = venue.findtext('location/{%s}point/{%s}lat' % ((Location.XMLNS,)*2))
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longitude = venue.findtext('location/{%s}point/{%s}long' % ((Location.XMLNS,)*2))
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return Venue(
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api,
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id = int(venue.findtext('id')),
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name = venue.findtext('name'),
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location = Location(
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api,
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city = venue.findtext('location/city'),
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country = Country(
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api,
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name = venue.findtext('location/country')
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),
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street = venue.findtext('location/street'),
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postal_code = venue.findtext('location/postalcode'),
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latitude = (latitude.strip()!= '') and float(latitude) or None,
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longitude = (longitude.strip()!= '') and float(longitude) or None,
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),
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url = venue.findtext('url')
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)
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@staticmethod
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def _hash_func(*args, **kwds):
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try:
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return hash(kwds['url'])
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except KeyError:
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raise InvalidParametersError("url has to be provided for hashing")
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def __hash__(self):
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return self.__class__._hash_func(url = self.url)
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def __eq__(self, other):
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return self.url == other.url
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def __lt__(self, other):
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return self.name < other.name
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def __repr__(self):
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return "<lastfm.geo.Venue: %s, %s>" % (self.name, self.location.city)
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from lastfm.api import Api
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from lastfm.event import Event
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from lastfm.geo import Location, Country
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from lastfm.error import InvalidParametersError |