def single_whorl_uniqueness(whorl_name, whorl_value):
print "here"
db = Db()
db.connect()
md5_whorl_value = FingerprintHelper.value_or_md5(
{whorl_name: whorl_value})[whorl_name]
try:
count = db.get_whorl_value_count(whorl_name, md5_whorl_value,
config.epoched)
except TypeError:
return {
'status':
"Error: that value has not yet been recorded for '" +
whorl_name + "'"
}
total = db.get_total_count(config.epoched)
uniqueness = {
'bits': round(-log(count / float(total), 2), 2),
'one_in_x': round(float(total) / count, 2)
}
return uniqueness
def _fetch_counts(whorls, whorl_names):
db = Db()
db.connect()
# result dict. 'total' is the total number of entries, 'sig_matches' is
# the number matching signature in whorls, other keys are variables in
# signature.
counts = {}
# query an incrementally updated totals table which has an index on
# unique (variable, value)
md5_whorls = FingerprintHelper.value_or_md5(whorls)
try:
for i in whorl_names:
counts[i] = db.get_whorl_value_count(i, md5_whorls[i],
config.epoched)
total = db.get_total_count(config.epoched)
matching = db.get_signature_matches_count(whorls['signature'],
config.epoched)
finally:
db.close()
return counts, total, matching
def single_whorl_uniqueness(whorl_name, whorl_value):
print "here"
db = Db()
db.connect()
md5_whorl_value = FingerprintHelper.value_or_md5({whorl_name: whorl_value})[whorl_name]
try:
count = db.get_whorl_value_count(whorl_name, md5_whorl_value, config.epoched)
except TypeError:
return {"status": "Error: that value has not yet been recorded for '" + whorl_name + "'"}
total = db.get_total_count(config.epoched)
uniqueness = {"bits": round(-log(count / float(total), 2), 2), "one_in_x": round(float(total) / count, 2)}
return uniqueness
def _fetch_counts(whorls):
db = Db()
db.connect()
# result dict. 'total' is the total number of entries, 'sig_matches' is
# the number matching signature in whorls, other keys are variables in
# signature.
counts = {}
# query an incrementally updated totals table which has an index on
# unique (variable, value)
md5_whorls = FingerprintHelper.value_or_md5(whorls)
for i in FingerprintHelper.whorl_names:
counts[i] = db.get_whorl_value_count(i, md5_whorls[i], config.epoched)
total = db.get_total_count(config.epoched)
matching = db.get_signature_matches_count(whorls["signature"], config.epoched)
return counts, total, matching
