def get_post_by_location():
try:
# query db for all posts in this area
lat = (float)(request.args.get('latitude'))
lon = (float)(request.args.get('longitude'))
except:
# Either the params are not there, or they are not convertable to floats
return generate_error_response(ERR_400, 400)
radius = 1 # TODO find out what number this should be
user = retrieve_user_from_request(request)
if (user is None):
return generate_error_response(ERR_403, 403)
try:
# if time_before is given, return 15 posts before specified time
# otherwise, return 15 newest posts
time_before = (float)(request.args.get('time_before'))
posts = Post.find_limited_posts_within_loc_before_time(\
lon, lat, radius, time_before)
except:
posts = Post.find_limited_posts_within_loc(lon, lat, radius)
# map from poster_id to img_tags of the poster
img_tags = {}
for post in posts:
poster_id = post.get_poster_id()
if poster_id not in img_tags:
img_tags[poster_id] = User.find_user_by_id(poster_id)\
.get_image_tag()
user_id = user.get_user_id()
to_ret = {}
jsonified_posts = []
for post in posts:
# passes in the already loaded image tag
jsonified_posts.append(json.loads(post.to_json_fields_for_FE(\
user_id, img_tags[post.get_poster_id()])))
to_ret['posts'] = jsonified_posts
return json.dumps(to_ret), 200
