ck-ntuh-net/mysite/mrn2hash.py

import base64
import hashlib
import os

import pandas as pd

import django

os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings'
# os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.settings")
django.setup()

from django.db.models import Count

from ck.models import *


def hashptid(mrn, hosp='NTUH'):

    ptsalt = (mrn+hosp).upper().encode()
    hash_in_bytes = hashlib.md5(ptsalt)

    md5  = hash_in_bytes.hexdigest()
    hash = base64.b32encode(hash_in_bytes.digest())[:8].decode()


    # hash32 = base64.b32encode(hash_in_bytes)[:8].decode()
    # hash10 = str(int(hashlib.md5(ptsalt).hexdigest(), 16))[-8:]

    return md5, hash

PATIENTS = []


for p in Patient.objects.all().order_by('medical_records'):
    md5, hash = hashptid(p.medical_records)
    print (p.medical_records, hash)
    PATIENTS.append({
        'ChartNo': p.medical_records,
        'hash': hash,
        'gender': p.gender,
        'birthday': p.birthday,
    })


df = pd.DataFrame(PATIENTS)

df.to_excel('hash.xlsx')