def on_event_request():
''' Receives GET requests from the user to setup subscriptions. '''
# Does the user want a linked outpage to make it easier to link to?
htmlPage = bool(request.query.html)
event = None
tag = request.query.tag
lat, lon, radius = subscriptionWorker.checkGeos(request.query.lat,
request.query.lon,
request.query.radius)
if tag and len(tag) > 0:
event = {'object': 'tag', 'tag': tag.lower()}
elif lat and lon and radius:
# Convert the incoming metres radius to degrees
latRad, lonRad = crowdedWorker.radialToLinearUnits(float(lat))
scale = (latRad + lonRad) / 2.0
radius = float(radius) / scale
event = {
'object': 'geography',
'lat': float(lat),
'lon': float(lon),
'radius': float(radius)
}
else:
print 'Must specify a lat/lon/radius or tag.'
redirect("/help")
return
if not event:
response = {'success': False}
# Get the response form updating the backend records
else:
response = subscriptionWorker.buildSubscription(event)
# Now get something populated in that so that its not blank
subInfo = [{
"object": response['object'],
"object_id": response['objectId']
}]
crowdedWorker.main(p, json.dumps(subInfo))
# A user linked page for getting to the event splash page
if response.has_key('url') and response['success'] == True:
if htmlPage == True:
output = template("goToEventPage",
objectId=response['objectId'],
eventPage=response['url'],
helpPage=p.helpUrl)
else:
output = json.dumps(response)
else:
redirect("/help")
return output
def queryByGeo(url, lat, lon, radius):
''' Queries the remote service by geographical parameters. '''
# Scale the radius back to metres
latScale, lonScale = crowdedWorker.radialToLinearUnits(float(lat))
scale = (latScale + lonScale)/2.0
print scale
radius *= scale
print radius
url = url.replace('<event_latitude>', str(lat))
url = url.replace('<event_longitude>', str(lon))
url = url.replace('<event_radius_in_metres>', str(radius))
print 'URL: %s' %url
errors, data = hitUrl(url)
if len(errors) > 0:
for error in errors:
print error
else:
media = json.loads(data)
print 'Media: %s' %(media)
return media
def on_event_request():
''' Receives GET requests from the user to setup subscriptions. '''
# Does the user want a linked outpage to make it easier to link to?
htmlPage = bool(request.query.html)
event = None
tag = request.query.tag
lat, lon, radius = subscriptionWorker.checkGeos(request.query.lat, request.query.lon, request.query.radius)
if tag and len(tag) > 0:
event = {'object' : 'tag',
'tag' : tag.lower()}
elif lat and lon and radius:
# Convert the incoming metres radius to degrees
latRad, lonRad = crowdedWorker.radialToLinearUnits(float(lat))
scale = (latRad+lonRad)/2.0
radius = float(radius)/scale
event = {'object' : 'geography',
'lat' : float(lat),
'lon' : float(lon),
'radius' : float(radius)}
else:
print 'Must specify a lat/lon/radius or tag.'
redirect("/help")
return
if not event:
response = {'success': False}
# Get the response form updating the backend records
else:
response = subscriptionWorker.buildSubscription(event)
# Now get something populated in that so that its not blank
subInfo = [{"object" : response['object'], "object_id" : response['objectId']}]
crowdedWorker.main(p, json.dumps(subInfo))
# A user linked page for getting to the event splash page
if response.has_key('url') and response['success']==True:
if htmlPage == True:
output = template("goToEventPage",
objectId=response['objectId'],
eventPage=response['url'],
helpPage=p.helpUrl)
else:
output = json.dumps(response)
else:
redirect("/help")
return output
def eventSplash(objectId=None):
''' Renders the media that relates to this event out to the browser. '''
if not objectId:
redirect("/help")
return
# Get the objectId
doc = crowdedWorker.getMediaByObjectId(p, objectId)
if not doc or len(doc.keys()) < 1 or 'subType' not in doc.keys():
redirect("/noevent/%s" % (objectId))
return
# Reorder the media by timestamp
media = crowdedWorker.reorderMedia(doc['media'], 200)
# Other web page elements
header = 'Event Media...'
# Get subheader
if doc['subType'] == 'geography':
loc = doc['loc']
# Get the correct radius units
# Convert the incoming metres radius to degrees
latRad, lonRad = crowdedWorker.radialToLinearUnits(float(loc[1]))
scale = (latRad + lonRad) / 2.0
radius = float(doc['radius']) * scale
subHeader = 'Event Location: lat: %s, lon: %s, radius: %sm' % (
loc[1], loc[0], radius)
elif doc['subType'] == 'tag':
subHeader = 'Event Tag: %s' % (objectId)
# Filter the list down
usefulTags = crowdedWorker.popUselessTags(p, doc['tags'])
tags = crowdedWorker.filterTagsByCount(usefulTags,
objectId,
numberTopTags=15)
associatedTags = 'Most commonly associated tags (count): '
associatedTags += ', '.join(tags)
# When the subscription was registered
initiated = doc['start'].strftime('%H:%M:%SZ on %a %d %b %Y')
# Push the arguments through the template and return the output
output = template("renderMedia",
photos=media,
header=header,
subHeader=subHeader,
associatedTags=associatedTags,
initiated=initiated)
return output
def eventSplash(objectId=None):
''' Renders the media that relates to this event out to the browser. '''
if not objectId:
redirect("/help")
return
# Get the objectId
doc = crowdedWorker.getMediaByObjectId(p, objectId)
if not doc or len(doc.keys())<1 or 'subType' not in doc.keys():
redirect("/noevent/%s" %(objectId))
return
# Reorder the media by timestamp
media = crowdedWorker.reorderMedia(doc['media'], 200)
# Other web page elements
header = 'Event Media...'
# Get subheader
if doc['subType']=='geography':
loc = doc['loc']
# Get the correct radius units
# Convert the incoming metres radius to degrees
latRad, lonRad = crowdedWorker.radialToLinearUnits(float(loc[1]))
scale = (latRad+lonRad)/2.0
radius = float(doc['radius'])*scale
subHeader = 'Event Location: lat: %s, lon: %s, radius: %sm' %(loc[1], loc[0], radius)
elif doc['subType']=='tag':
subHeader = 'Event Tag: %s' %(objectId)
# Filter the list down
usefulTags = crowdedWorker.popUselessTags(p, doc['tags'])
tags = crowdedWorker.filterTagsByCount(usefulTags, objectId, numberTopTags=15)
associatedTags = 'Most commonly associated tags (count): '
associatedTags += ', '.join(tags)
# When the subscription was registered
initiated = doc['start'].strftime('%H:%M:%SZ on %a %d %b %Y')
# Push the arguments through the template and return the output
output = template("renderMedia",
photos = media,
header = header,
subHeader = subHeader,
associatedTags = associatedTags,
initiated = initiated)
return output