expomap/apps/import_xls/utils.py

# -*- coding: utf-8 -*-
import urllib2
import time, xlrd
import os
from PIL import Image
from django.conf import settings
from django.utils import translation
from hvad.utils import get_translation_aware_manager
from bitfield import BitHandler
from place_exposition.models import PlaceExposition
from exposition.models import Exposition
from country.models import Country
from city.models import City
from theme.models import Theme, Tag
from functions.files import get_alternative_filename
from accounts.models import User
from django.utils.translation import ugettext as _


def to_int(val):
    """
    Reverse function to get_int
    return None if value isnt integer
    """
    try:
        return int(val)
    except ValueError:
        return None

def to_date(value):
    if not value:
        return None

    if isinstance(value, unicode) or isinstance(value, str):

        try:
            t = time.strptime(value, "%d.%m.%Y")
        except ValueError:
            try:
                t = time.strptime(value, "%d/%m/%Y")
            except ValueError:
                return None
    if isinstance(value, float):
        t = xlrd.xldate_as_tuple(value, 0)+(0,0,0)

    return time.strftime("%Y-%m-%d", t)

def to_datetime(value):
    if not value:
        return None
    if isinstance(value, unicode) or isinstance(value, str):
        t = time.strptime(value, "%Y-%m-%d %H:%M:%S")
    return time.strftime("%Y-%m-%d %H:%M:%S", t)


def to_country(value):
    try:
        query = get_translation_aware_manager(Country)
        country = query.filter(name=value)[0]
        return country
    except IndexError:
        print('---------------------')
        print(value.encode('utf8'))
        print('AAAAAAAA')
        return None

def to_city(value, lang, country):
    try:
    # get city by name
        #objects = get_translation_aware_manager(City)
        # except IndexError if no found
        city = City.objects.filter(translations__name=value, country=country)[0]
    #    print(city)
        return city.id
    except IndexError:
        print('---------city error------------')
        print(value.encode('utf8'))
        print('---------------------')
        return None


def to_theme(obj, value):

    if isinstance(value, float) or isinstance(value, int):
        if (value - int(value) > 0):
            value = str(value)
        else:
            value = str(int(value))
        theme_ids = value.split('.')
    else:
        theme_ids = value.split(',')

    if theme_ids == ['']:
        return _(u'Неправильное значение')
    obj.theme.clear()
    obj.theme.add(*Theme.objects.filter(id__in=theme_ids))
    if not Theme.objects.filter(id__in=theme_ids).exists():
        return _(u'Нет совпадений')
    return None


def to_tag(obj,value):
    if value == [""]:
        return None
    names = value.split(',')
    translation.activate('en')
    if names:
        obj.tag.clear()
        obj.tag.add(*Tag.objects.filter(translations__name__in=names, theme__in=obj.theme.all()))
    return None



def to_place(value):
    value = value.replace('/', '')
    try:
        place = PlaceExposition.objects.get(url=value)
        return place
    except PlaceExposition.DoesNotExist:

        try:
            place = PlaceExposition.objects.get(id=value)
            return place
        except:
            return None



def to_periodic(value):
    periodic = {'': 0, u'Ежегодно': 1.0, u'2 раза в год': 2.0, u'3 раза в год': 3.0,
                    u'4 раза в год': 4.0, u'5 раз в год': 5.0, u'Раз в 2 года': 0.5,
                    u'Раз в 3 года': 0.33, u'Раз в 4 года': 0.25}

    return periodic.get(value, 0)


def to_audience(value, model=Exposition):
    if value:
        translation.activate('ru')
        l = value.split(', ')
        if l:
            new_list = []
            for value in l:
                for item1, item2 in BIT_AUDIENCE:
                    if value == item2:
                        new_list.append(item1)
            if new_list:
                return reduce(lambda x,y: x|y, (getattr(model.audience, item) for item in new_list))
    return 0

def get_audience(value):
    if isinstance(value, BitHandler):
        l = [k for k, v in value.iteritems() if v]
        if l:
            new_list = []
            for value in l:
                for item1, item2 in BIT_AUDIENCE:
                    if value == item1:
                        new_list.append(unicode(item2))

            return ', '.join(new_list)
    return ''

import types
def save_logo(obj, path):
    if not path:
        return None
    file_name = path.split('/')[-1]
    logo_path = obj.logo.field.upload_to
    if isinstance(logo_path, types.FunctionType):
        logo_path = logo_path(obj, obj.url)
        logo_path = '/'.join(logo_path.split('/')[:-1])

    full_path = settings.MEDIA_ROOT + logo_path

    try:
        alt_name = get_alternative_filename(full_path, file_name)
    except UnicodeEncodeError:
        return _(u'Некоректное название файла')

    download_to = full_path+alt_name

    if path.startswith('http://') or path.startswith('https://'):

        url = path
    elif path.startswith('/'):

        url = 'http://expomap.ru' + path
    elif path.startswith('images'):
        url = 'http://expomap.ru/' + path
    else:
        return None

    try:
        response = urllib2.urlopen(url, timeout=5)
    except:
        return _(u'Превышено время ожидания')

    with open(download_to,'wb') as f:
        try:
            f.write(response.read())
            f.close()
        except:
            # can be timeout
            return _(u'Превышено время ожидания')

    try:
        # check if image
        im=Image.open(download_to)
    except IOError:
        os.remove(download_to)
        return _(u'Неправильный формат логотипа')
    obj.logo = logo_path + alt_name
    try:
        obj.save()
    except:
        print('logo exception. logo: %s'%obj.logo)
        return _(u'Неизвестная ошибка')


def check_quality_label(obj, value, label):
    bit = obj.quality_label

    try:
        value = int(value)
    except:
        return bit
    if value:
        setattr(bit, label, True)
    return bit

def to_user(value):
    try:
        return User.objects.get(id=value)
    except User.DoesNotExist:

        return User.objects.get(id=1)