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291 lines
11 KiB
291 lines
11 KiB
# -*- coding: utf-8 -*-
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from django.db import models
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from django.db.models import Q
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from django.contrib.contenttypes import generic
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from django.db.models.signals import post_save, pre_save
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from django.utils.translation import ugettext as _
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from functools import partial
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from django.conf import settings
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from functions.translate import fill_with_signal
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#
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from hvad.models import TranslatableModel, TranslatedFields, TranslationManager
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#
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from functions.custom_fields import EnumField, LocationField
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from functions.signal_handlers import post_save_handler, pre_save_handler
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from functions.models_methods import ExpoManager
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import copy
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from functions.model_mixin import ExpoMixin
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from exposition.models import Exposition
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from place_conference.models import PlaceConference
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from photologue.models import Gallery
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EXPOSITION_TYPE = (('Exposition complex', u'Выставочный комплекс'), ('Convention centre', u'Конгрессно-выставочный центр'),
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('Exposition centre', u'Выставочный центр'),)
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dist=lambda s,d: (s[0]-d[0])**2+(s[1]-d[1])**2
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def logo_name(instance, filename):
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url = instance.url
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return '/'.join(['place_exposition', url, url+'_logo.jpg'])
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class PlaceExposition(TranslatableModel, ExpoMixin):
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"""
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Create PlaceConference 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 = '/places/'
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place = 'place_exposition'
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catalog_name = _(u'Места:')
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search_name = None
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#set manager of this model
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objects = ExpoManager()
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url = models.SlugField(unique=True, max_length=255)
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country = models.ForeignKey('country.Country', on_delete=models.PROTECT)
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city = models.ForeignKey('city.City', on_delete=models.PROTECT, related_name='place_expositions')
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photogallery = models.ForeignKey('photologue.Gallery', null=True, blank=True, on_delete=models.SET_NULL)
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#type uses EnumField for creating Enum type field in Mysql database
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type = EnumField(values = [item1 for item1, item2 in EXPOSITION_TYPE])
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#information
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address = LocationField(verbose_name='Адресс')
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phone = models.BigIntegerField(blank=True, null=True)
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fax = models.BigIntegerField(blank=True, null=True)
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web_page = models.URLField(blank=True)
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email = models.EmailField(blank=True)
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foundation_year = models.PositiveIntegerField(blank=True, null=True)
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event_in_year = models.PositiveIntegerField(blank=True, null=True)
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total_area = models.PositiveIntegerField(blank=True, null=True)
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closed_area = models.PositiveIntegerField(blank=True, null=True)
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open_area = models.PositiveIntegerField(blank=True, null=True)
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total_pavilions = models.PositiveIntegerField(blank=True, null=True)
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total_halls = models.PositiveIntegerField(blank=True, null=True)
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virtual_tour = models.URLField(blank=True)
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#
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wifi = models.NullBooleanField()
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bank = models.NullBooleanField()
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children_room = models.NullBooleanField()
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disabled_service = models.NullBooleanField()
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conference_centre = models.NullBooleanField() #change name here, in form, in template
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business_centre = models.NullBooleanField()
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online_registration = models.NullBooleanField()
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cafe = models.NullBooleanField()
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terminals = models.NullBooleanField()
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parking = models.NullBooleanField()
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press_centre = models.NullBooleanField()
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mobile_application = models.NullBooleanField()
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#
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logo = models.ImageField(verbose_name='Logo', upload_to=logo_name, blank=True, max_length=255)
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rating = models.IntegerField(default=0)
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partner = models.NullBooleanField(default=0)
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# delete after profiling
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files = generic.GenericRelation('file.FileModel', content_type_field='content_type', object_id_field='object_id')
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#photos = generic.GenericRelation('file.Photo', content_type_field='content_type', object_id_field='object_id')
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#translations is translated fields
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translations = TranslatedFields(
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name = models.CharField(max_length=100),
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main_title = models.TextField(blank=True),
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description = models.TextField(blank=True),
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# text information about address
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adress = models.TextField(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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total_year_action = models.TextField(blank=True),
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)
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#fields 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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views = models.PositiveIntegerField(default=0)
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is_published = models.BooleanField(default=1)
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class Meta:
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ordering = ['-rating', 'id']
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def get_gallery(self):
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if self.photogallery:
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return self.photogallery
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data = {}
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model = type(self)
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for code, name in settings.LANGUAGES:
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obj = model._meta.translations_model.objects.get(language_code = code,master__id=self.id) #access to translated fields
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data['title_%s'%code] = obj.name
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data['description_%s'%code] = obj.description
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gallery = Gallery()
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fill_with_signal(Gallery, gallery, data)
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self.photogallery = gallery
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self.save()
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return gallery
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def upload_photo(self, photo ,gallery=None):
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"""
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uploading photo to gallery
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"""
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if gallery is None:
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gallery = self.get_gallery()
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gallery.photos.add(photo)
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def upload_photo_url(self):
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return '/admin/place_exposition/upload-photo/%s/'%self.id
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def get_index_text(self):
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translations = self.translations.all()
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names = ' '.join([tr.name for tr in translations])
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titles = ' '.join([tr.main_title for tr in translations])
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return names + ' ' + titles
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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_object_type(self):
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return _(u'Места')
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def get_catalog_url(self):
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return self.catalog
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def get_permanent_url(self):
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url = '%s%s/'%(self.catalog, self.url)
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return url
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def get_logo(self):
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return self.logo
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def get_photos(self):
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photos = self.photos.all()
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ph = self.files.filter(purpose='photo')
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return list(photos)+list(ph)
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def get_scheme(self):
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scheme = self.files.filter(purpose='scheme teritory')
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return scheme
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def events(self):
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events = Exposition.objects.filter(place=self)[:6]
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return events
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def get_nearest_places(self):
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pl_exp = PlaceExposition.objects.language().filter(city=self.city).exclude(id=self.id)[:3]
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pl_conf = PlaceConference.objects.language().filter(city=self.city)[:3]
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#return pl_exp[]
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return list(pl_exp)+ list(pl_conf)#PlaceExposition.objects.filter(city=self.city).exclude(id=self.id)
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def get_nearest_hotels(self):
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if not self.address:
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return []
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# get coordinates of all hotels in current city
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qs_hotels_all = self.city.hotels.filter(city=self.city)
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hotels_coord = [(hotel.latitude, hotel.longitude) for hotel in qs_hotels_all]
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# coordinate current place
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place_coord = (float(self.address['lat']), float(self.address['lng']))
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# 4 coordinates of 4 nearest hotels
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hotels_coord = sorted(hotels_coord, key=partial(dist, place_coord))[:4]
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# start generating filter for queryset
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qs = [Q(latitude=item[0]) & Q(longitude=item[1]) for item in hotels_coord]
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res = reduce(lambda a,b: a|b, qs)
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return list(qs_hotels_all.filter(res))
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def get_type(self):
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type = {'Convention centre': _(u'Конгрессно-выставочный центр'), 'Exposition centre': _(u'Выставочный центр'),
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'Exposition complex': _(u'Выставочный комплекс')}
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return type.get(self.type)
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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 PlaceExposition.objects.safe_get(url=duplicate.url):
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#already has copy this instance
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return
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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 Halls.
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# copy halls
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halls = Hall.objects.filter(place_exposition=getattr(self, 'id'))
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for hall in halls:
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duplicate_hall = copy.copy(hall)
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duplicate_hall.exposition = duplicate
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duplicate_hall.save()
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return duplicate
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def get_events_number(self):
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exp = Exposition.objects.filter(place=self)
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return len(exp)
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class Hall(TranslatableModel):
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"""
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Create Hall model which saves information about halls in PlaceExposition
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"""
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place_exposition = models.ForeignKey(PlaceExposition, related_name='halls')
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number = models.CharField(blank=True, max_length=6)
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capacity = models.PositiveIntegerField(blank=True, null=True)
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translations = TranslatedFields(
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name = models.CharField(max_length=255, blank=True)
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)
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def calculate_rating(place):
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rating_simple = {'address': 20, 'phone': 5, 'fax': 5, 'email': 5,
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'web_page': 5, 'logo': 20, 'event_in_year': 5, 'total_area': 5, 'closed_area': 5,
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'total_pavilions': 5, 'description':15, 'foundation_year': 5, 'total_halls': 5, 'virtual_tour': 5 }
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rating_methods = {'theme': 10, 'tag': 5, 'photo':5}
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# base rating
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rating = 100
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for key, value in rating_simple.iteritems():
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if getattr(place, key):
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rating += value
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place.rating = rating
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# call to prevent recursion
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post_save.disconnect(create_place, sender=PlaceExposition)
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place.save()
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post_save.connect(create_place, sender=PlaceExposition)
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def create_place(sender, instance, created, **kwargs):
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post_save_handler(sender, instance=instance, **kwargs)
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calculate_rating(instance)
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#test
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pre_save.connect(pre_save_handler, sender=PlaceExposition)
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post_save.connect(create_place, sender=PlaceExposition)
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post_save.connect(post_save_handler, sender=Hall)
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