Source code for fin_aid.create_paper

# TODO check importancy of this feature. If essential, make create_paper method of AidRequest class
# all further imports are needed only to make application paper!
from django.core.files import File
from django.contrib.auth.models import User
from django.utils import timezone
from docxtpl import DocxTemplate  # create word document from template
from petrovich.enums import Case, Gender  # склоняем фамилию (в заявлении нужен родительский падеж
from petrovich.main import Petrovich
import datetime
import os
import logging

from core.settings import MEDIA_ROOT, STATIC_ROOT
from .models import user_hash
from .models import AidRequest, AidDocument

logger = logging.getLogger(__name__)

# russian, genitive
MONTH_RU = {
    1: "января",
    2: "февраля",
    3: "марта",
    4: "апреля",
    5: "мая",
    6: "июня",
    7: "июля",
    8: "августа",
    9: "сентября",
    10: "октября",
    11: "ноября",
    12: "декабря",
}


def get_sex(user: User):
    if user.userprofile.student_info:
        return user.userprofile.student_info.get_sex_display()
    if user.userprofile.middlename:
        if user.userprofile.middlename[-1] == "ч":
            return 'male'
    elif user.first_name[-1] in ["a", 'я']:
        return 'female'
    else:
        return 'male'


def create_paper(aid_request: AidRequest):
    try:
        today = datetime.date.today()
        date = "{} {} {} г.".format(today.day, MONTH_RU[today.month], today.year)
        user = aid_request.applicant
        userprofile = user.userprofile
        student_info = userprofile.student_info
        sex = get_sex(user)
        if sex == 'female':
            student = "студентки"
            gender = Gender.FEMALE
        else:
            student = "студента"
            gender = Gender.MALE
        p = Petrovich()
        fst = p.firstname(student_info.first_name, Case.GENITIVE, gender)
        lst = p.firstname(student_info.last_name, Case.GENITIVE, gender)
        if userprofile.middlename:
            mdl = p.firstname(userprofile.middlename, Case.GENITIVE, gender)
        else:
            mdl = ""
        name = "{} {} {}".format(lst, fst, mdl)
        context = {
            "student": student,
            "group": str(student_info.group),
            "date": date,
            "name": name,
            "reason": aid_request.category.reason,
        }

        tpl = DocxTemplate(STATIC_ROOT + "/fin_aid/Obrazets_Zayavlenia_Na_Matpomosch.docx")
        tpl.render(context)
        path = MEDIA_ROOT + "/aid_docs/user_{}/".format(user_hash(user))
        filename = "application-{}-{}-{}.docx".format(today.year, today.month, today.day)
        os.makedirs(path, exist_ok=True)
        tpl.save(path + filename)
        application = AidDocument(request=aid_request, is_application_paper=True)
        application.file.save(filename, File(open(path+filename, "rb")), save=True)
        return filename
    except Exception as e:
        logger.exception(e)