def new_shapefile(shp, shx):
""" Returns a new Shapefile instance
Aguments:
shp: Binary contents of the .shp file.
shx: Binary contents of the .shx file.
"""
md5 = hashlib.md5(shp).hexdigest().upper()
model = Shapefile.get_by_key_name(md5)
if model:
return model
else:
model = Shapefile(md5)
model.aws_bucket = AWS_SHP_BUCKET
model.public = True
numregions, extent, gmerc_extent = shp_info(shp, shx)
model.n = numregions
model.extent = extent
model.gmerc_extent = gmerc_extent
shp_url = s3_util.s3_upload(AWS_SHP_BUCKET, "public/%s.shp" % md5, shp, public=True, overwrite=True)
shx_url = s3_util.s3_upload(AWS_SHP_BUCKET, "public/%s.shx" % md5, shx, public=True, overwrite=True)
if shp_url and shx_url:
model.shp_url = shp_url
model.shx_url = shx_url
model.put()
return model
else:
return False
def new_shapefile_from_parts(md5, shx):
model = Shapefile.get_by_key_name(md5)
if model:
return False
shx_url = s3_util.s3_upload(AWS_SHP_BUCKET, "public/%s.shx" % md5, shx, public=True, overwrite=True)
s3client = s3_multipart.AWS_S3(config.aws_accesskeyid, config.aws_accesskey)
return s3client.initiate_multipart_upload("public/" + md5 + ".shp", bucketName="shapefiles")
