def PrepareHandler(self):
"""prepare means:
- find the oldest non-prepared
- create bit.ly link if does not exist
- create trimmed tweet text if the link exists"""
config = get_config()
self.response.out.write('<br/><br/>Preparing to tweet')
# get oldest non-prepared changeset in the datastore
oldest_changeset = Changeset.all().order('created_at').filter('is_prepared =', False).fetch(1)
if oldest_changeset:
c = oldest_changeset[0]
self.response.out.write('<br/>There is non-prepared<br/>')
self.response.out.write("id: %d<br/>" % c.id)
self.response.out.write("created_at: %s<br/>" % c.created_at)
self.response.out.write("comment: %s<br/>" % c.comment)
self.response.out.write("user: %s<br/>" % c.user)
# if no shortened link - create it
if not c.link_url:
long_url = "http://www.openstreetmap.org/browse/changeset/%d" % c.id
bitly = BitLy(config["bitly_username"], config["bitly_key"])
short_url = bitly.short_url(long_url)
if not short_url:
self.response.out.write('could not shorten')
return
self.response.out.write(short_url)
c.link_url = short_url
if not c.tweet:
if c.comment:
tweet = "%s: %s %s" % (c.user, c.comment, c.link_url)
else:
tweet = "%s: %s" % (c.user, c.link_url)
c.tweet = trim_to_tweet(tweet)
if c.link_url and c.tweet:
c.is_prepared = True
self.response.out.write('tweet: %s' % c.tweet)
c.put()
# 3 is an arbitrary number,
# we just ignore changesets that 3 times larger than bbox in config
print "<br/>delta_lon: %f" % (max_lon - min_lon)
print "<br/>delta_lat: %f" % (max_lat - min_lat)
if ((max_lon - min_lon) > 3 * delta_o) or ((max_lat - min_lat) > 3 * delta_a):
print "<br/>changeset BBOX is too large<br/>"
# go to next element
continue
comment = None
created_by = None
tags = elem.findall('tag')
for t in tags:
if t.attrib['k'] == 'comment':
comment = t.attrib['v']
if t.attrib['k'] == 'created_by':
created_by = t.attrib['v']
if comment:
print "<br/>comment: %s" % comment
if created_by:
print "<br/>created_by: %s" % created_by
print "<br/>"
c = Changeset(
key_name=str(id),
id=id,
created_at=created_at,
user=user,
comment=comment,
created_by=created_by)
print c
print trim_to_tweet(c.comment)
