def index(request):
"""
Renders the lifestream as read from settings.LIFESTREAM_DUMP
"""
from cPickle import load
sources = list(settings.LIFESTREAM_SOURCES)
utils.validate_sources(sources)
fp = open(utils.get_dump(),'rb')
try:
entries = load(fp)
except:
entries = []
finally:
fp.close()
tvars = {
'entries':entries,
'sources':sources,
}
return render_to_response('django_lifestream/lifestream.html',RequestContext(request,tvars))
def generate_dump(sources=None,dumpfile=None,tmpfile=None,sort=None):
"""
This function does the actual work here. It download all the source
feeds from settings.LIFESTREAM_SOURCES, merges them and then writes
them into the specified dumpfile
"""
from django.conf import settings
# Handle timezone settings since django doesn't yet does the tzset call.
os.environ['TZ']=settings.TIME_ZONE
try:
max_days = settings.LIFESTREAM_MAXDAYS
except:
max_days = None
time.tzset()
local_timezone = gettz()
utc_timezone = gettz('UTC')
now = datetime.datetime.utcnow().replace(tzinfo=utc_timezone)
if not sources:
try:
sources = settings.LIFESTREAM_SOURCES
logging.debug('Using settings.LIFESTREAM_SOURCES')
except:
logging.error('settings.LIFESTREAM_SOURCES not specified!')
raise
if not dumpfile:
try:
dumpfile = settings.LIFESTREAM_DUMP
except:
logging.error('settings.LIFESTREAM_DUMP not specified!')
raise
if not tmpfile:
tmpfile = dumpfile+".tmp"
if not sort:
sort = sort_entries
sources = list(sources)
utils.validate_sources(sources)
entries = []
for source in sources:
es = feedparser.parse(source['url']).entries
for e in es: e['_class']=source['class']
entries+=es
if len(entries) == 0: sys.exit(0)
for e in entries:
try:
d=e.published_parsed
except:
d=e.updated_parsed
d=datetime.datetime(*(d[:-2]+(utc_timezone,)))
e['_date']=d
if max_days:
entries = filter(lambda e: (now-e['_date']).days <= max_days, entries)
# Sort according to published_parsed
sort_entries(entries)
output = []
for e in entries:
output.append(item_from_entry(e,local_timezone))
fp = open(tmpfile,'wb+')
try:
dump(output,fp)
finally:
fp.close()
import shutil
shutil.move(tmpfile,dumpfile)
