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169 lines
7.4 KiB
169 lines
7.4 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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from django.contrib.contenttypes import generic
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import copy
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from bitfield import BitField
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from service.models import Service
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from functions.db import db_table_exists
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#
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from functions.custom_fields import EnumField
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from functions.custom_fields import LocationField
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from functions.models_methods import ExpoManager
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from functions.model_mixin import EventMixin, ExpoMixin
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# check if table exist and create flags if true
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#flags = [str(item.id) for item in Service.objects.all()] if db_table_exists('service_service') else []
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flags = ['catalog', 'translator', 'participation', 'remote', 'tickets', 'visit', 'buildstand']
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CURRENCY = ('RUB', 'USD', 'EUR')
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class Seminar(TranslatableModel, EventMixin, ExpoMixin):
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"""
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Create Seminar model
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Uses hvad.TranslatableModel which is child of django.db.models class
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"""
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catalog = '/seminar/'
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# type of event
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event_type = 'seminar'
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#set manager of this model
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objects = ExpoManager()
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services = BitField(flags=flags)
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url = models.SlugField(unique=True)
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data_begin = models.DateTimeField(verbose_name='Дата начала')
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data_end = models.DateTimeField(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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address = LocationField(verbose_name='Адрес', blank=True)
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theme = models.ManyToManyField('theme.Theme', verbose_name='Тематики',
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related_name='seminar_themes')
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tag = models.ManyToManyField('theme.Tag', verbose_name='Теги',
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blank=True, null=True, related_name='seminar_tags')
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organiser = models.ManyToManyField('organiser.Organiser', verbose_name='Организатор',
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blank=True, null=True, related_name='seminar_organisers')
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company = models.ManyToManyField('company.Company', verbose_name='Компании',
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blank=True, null=True, related_name='seminar_companies')
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users = models.ManyToManyField('accounts.User', verbose_name='Посетители выставки',
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blank=True, null=True, related_name='seminar_users')
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#!service has bitfield uncomment when country data will be filled
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#service = models.ManyToManyField('service.Service', verbose_name='Услуги', blank=True, null=True)
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#periodic = models.FloatField(verbose_name='Переодичность', blank=True, null=True) в семинаре под вопросом здесь
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web_page = models.CharField(verbose_name='Вебсайт', max_length=255, blank=True)
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link = models.CharField(verbose_name='Линк на регистрацию', max_length=255, blank=True)
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discount = models.PositiveIntegerField(verbose_name='Скидка', 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_price = models.PositiveIntegerField(verbose_name='Минимальная цена', blank=True, null=True)
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max_price = models.PositiveIntegerField(verbose_name='Максимальная цена', blank=True, null=True)
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expohit = models.BooleanField(verbose_name='Expohit', default=0)
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#administrator can cancel seminar
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canceled_by_administrator = models.BooleanField(default=0)
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quality_label = BitField(flags=['ufi', 'rsva', 'exporating'])
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#can publish not immediately
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is_published = models.BooleanField(default=0)
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canceled = models.BooleanField(default=0)
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moved = models.BooleanField(default=0)
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files = generic.GenericRelation('file.FileModel', content_type_field='content_type', object_id_field='object_id')
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# statistic
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foundation_year = models.PositiveIntegerField(verbose_name='Год основания', blank=True, null=True)
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visitors = models.PositiveIntegerField(verbose_name='Посетитеил', blank=True, null=True)
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members = models.PositiveIntegerField(verbose_name='Участники', blank=True, null=True)
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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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main_title = models.TextField(verbose_name='Краткое описание', blank=True),
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programm = models.TextField(verbose_name='Описание', blank=True),
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discount_description = models.TextField(verbose_name='Условия и Скидки', 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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main_page = models.PositiveIntegerField(default=0, db_index=True)
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views = models.PositiveIntegerField(default=0)
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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 get_nearest_events(self):
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seminars = Seminar.objects.all()[:5]
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return seminars
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def get_calendar_url(self):
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return '/seminar-add-calendar/%s/'%self.id
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def get_visit_url(self):
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return '/seminar-visit/%s/'%self.id
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def get_catalog_url(self):
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return '/seminars/'
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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 Seminar.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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ignore_fields = ['id', 'master', 'language_code']
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duplicate.translate('ru')
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tr = self._meta.translations_model.objects.get(language_code = 'ru',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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# 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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return duplicate
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class Statistic(models.Model):
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seminar = models.ForeignKey(Seminar, related_name='statistic')
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year = models.PositiveIntegerField(verbose_name='Год')
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members = models.PositiveIntegerField(verbose_name='Посетители')
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visitors = models.PositiveIntegerField(verbose_name='Участники')
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# -*- coding: utf-8 -*-
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from django.db.models.signals import post_save
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from functions.signal_handlers import post_save_handler
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post_save.connect(post_save_handler, sender=Seminar)
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