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219 lines
9.4 KiB
219 lines
9.4 KiB
# -*- coding: utf-8 -*-
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from django.db import models
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from hvad.models import TranslatableModel, TranslatedFields, TranslationManager
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import copy
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#
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from functions.custom_fields import EnumField
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AUDIENCE1 = ((None,'Не выбрано'),
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('experts', 'Специалисты'),
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('experts and consumers', 'Специалисты и потребители'),
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('general public', 'Широкая публика'))
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AUDIENCE = (None,'experts', 'experts and consumers', 'general public')
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CURRENCY = ('RUB', 'USD', 'EUR')
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class ExpositionManager(TranslationManager):
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def safe_get(self, **kwargs):
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model = self.model
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try:
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return model.objects.get(**kwargs)
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except:
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return None
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class Exposition(TranslatableModel):
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"""
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Create Exposition model
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Uses hvad.TranslatableModel which is child of django.db.models class
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"""
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#set manager of this model
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objects = ExpositionManager()
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url = models.SlugField(unique=True)
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data_begin = models.DateField(verbose_name='Дата начала')
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data_end = models.DateField(verbose_name='Дата окончания')
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#relations
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country = models.ForeignKey('country.Country', verbose_name='Страна', on_delete=models.PROTECT)
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city = models.ForeignKey('city.City', verbose_name='Город', on_delete=models.PROTECT)
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place = models.ForeignKey('place_exposition.PlaceExposition', verbose_name='Место проведения',
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blank=True, null=True, on_delete=models.PROTECT, related_name='exposition_place')
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theme = models.ManyToManyField('theme.Theme', verbose_name='Тематики',
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related_name='exposition_themes')
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tag = models.ManyToManyField('theme.Tag', verbose_name='Теги',
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blank=True, null=True, related_name='exposition_tags')
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organiser = models.ManyToManyField('organiser.Organiser', verbose_name='Организатор',
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blank=True, null=True, related_name='exposition_organisers')
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company = models.ManyToManyField('company.Company', verbose_name='Компании',
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blank=True, null=True, related_name='exposition_compamies')
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users = models.ManyToManyField('accounts.User', verbose_name='Посетители выставки',
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blank=True, null=True, related_name='exposition_users')
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#service = models.ManyToManyField('service.Service', verbose_name='Услуги',
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# blank=True, null=True, related_name='exposition_services')
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periodic = models.FloatField(verbose_name='Переодичность', blank=True, null=True)
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audience = EnumField(values=AUDIENCE, blank=True)
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web_page = models.CharField(verbose_name='Вебсайт', max_length=255, blank=True)
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foundation_year = models.PositiveIntegerField(verbose_name='Год основания', blank=True, null=True)
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min_area = models.PositiveIntegerField(verbose_name='Минимальная площадь', blank=True, null=True)
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#
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currency = EnumField(values=CURRENCY, default='RUB')
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tax = models.BooleanField(verbose_name='Налог', default=1)
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min_closed_area = models.PositiveIntegerField(verbose_name='Минимальная цена закрытой НЕ оборудованной площади',
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blank=True, null=True)
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max_closed_area = models.PositiveIntegerField(verbose_name='Максимальная цена закрытой НЕ оборудованной площади',
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blank=True, null=True)
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min_closed_equipped_area = models.PositiveIntegerField(verbose_name='Минимальная цена закрытой оборудованной площади',
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blank=True, null=True)
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max_closed_equipped_area = models.PositiveIntegerField(verbose_name='Максимальная цена закрытой оборудованной площади',
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blank=True, null=True)
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min_open_area = models.PositiveIntegerField(verbose_name='Минимальная цена открытой площади',
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blank=True, null=True)
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max_open_area = models.PositiveIntegerField(verbose_name='Максимальная цена открытой площади',
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blank=True, null=True)
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registration_payment = models.PositiveIntegerField(verbose_name='Регистрационный взнос', blank=True, null=True)
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#administrator can cancel exposition
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canceled_by_administrator = models.BooleanField(default=0)
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#can publish not immediately
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is_published = models.BooleanField(default=0)
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translations = TranslatedFields(
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name = models.CharField(verbose_name='Название', max_length=255),
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main_title = models.TextField(verbose_name='Краткое описание', blank=True),
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description = models.TextField(verbose_name='Описание', blank=True),
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products = models.TextField(verbose_name='Экспонируемые продукты', blank=True),
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time = models.TextField(verbose_name='Время работы', blank=True),
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#-----meta data
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title = models.CharField(max_length=250),
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descriptions = models.CharField(max_length=250),
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keywords = models.CharField(max_length=250),
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)
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#field saves information about creating and changing model
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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#mark
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def __unicode__(self):
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return self.lazy_translation_getter('name', unicode(self.pk))
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def cancel(self):
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self.canceled_by_administrator = True
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def on(self):
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self.is_published = True
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self.canceled_by_administrator = False
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self.save()
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def off(self):
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self.is_published = False
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self.canceled_by_administrator = True
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self.save()
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def clone(self):
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"""
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Return an identical copy of the instance with a new ID.
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"""
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if not self.pk:
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raise ValueError('Instance must be saved before it can be cloned.')
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duplicate = copy.copy(self)
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# Setting pk to None. Django thinking this is a new object.
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duplicate.pk = None
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# url must be unique
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duplicate.url += '_copy'
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if Exposition.objects.safe_get(url=duplicate.url):
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#already has copy this instance
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return
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# duplicate should not be published
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duplicate.is_published = False
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duplicate.cancel_by_administrator = False
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duplicate.save()
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# but lost all ManyToMany relations and Translations.
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# copy relations
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for field in self._meta.many_to_many:
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source = getattr(self, field.attname)
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destination = getattr(duplicate, field.attname)
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for item in source.all():
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destination.add(item)
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# copy translations
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languages = self.get_available_languages()
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ignore_fields = ['id', 'master', 'language_code']
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for code in languages:
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duplicate.translate(code)
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tr = self._meta.translations_model.objects.get(language_code = code,master__id=self.pk)
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for field in duplicate._translated_field_names:
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if field in ignore_fields:
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continue
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setattr(duplicate, field, getattr(tr, field))
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duplicate.save()
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return duplicate
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class TimeTable(TranslatableModel):
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"""
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TimeTable for business program
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"""
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exposition = models.ForeignKey(Exposition, related_name='business_program')
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begin = models.DateTimeField(verbose_name='Начало')
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end = models.DateTimeField(verbose_name='Конец')
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#translated fields
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translations = TranslatedFields(
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name = models.CharField(verbose_name='Название', max_length=255)
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)
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from django.db.models.signals import post_save
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from django.dispatch import receiver
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from django.conf import settings
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from functions.form_check import translit_with_separator
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from functions.translate import get_translated_fields
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@receiver(post_save)
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def exposition_post_save_handler(sender, **kwargs):
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"""
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objects saves two times:
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- first time Exposition object
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- second time ExpositionTranslation object
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object must have at least one Translation
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"""
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obj = kwargs['instance']
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if isinstance(obj, Exposition):
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# object is Exposition
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if kwargs['created'] and obj.url == '':
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# if url doesn't set in new object set it
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obj.url = translit_with_separator(obj.name)
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# what languages must be
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all_langs = [code for code, lang in settings.LANGUAGES]
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# what languages are
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obj_langs = obj.get_available_languages()
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#
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missing_languages = list(set(all_langs) - set(obj_langs))
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# get first Translation object
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translation = obj.translations.all()[0]
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# translated fields
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fields = get_translated_fields(obj)
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for code in missing_languages:
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# translate
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obj.translate(code)
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# go through all fields and set value
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for field in fields:
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setattr(obj, field, getattr(translation, field))
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obj.save() |