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import os
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import reversion
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from django.contrib.sites.shortcuts import get_current_site
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from django.db import models
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from django.db.models import Sum
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from django.urls import reverse_lazy
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from django.utils import timezone
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from django.conf import settings
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from seminar.models.tvorba import Cislo, Deadline, Problem, Uloha, aux_generate_filename
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from seminar.models.personalni import Resitel
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from seminar.models.base import SeminarModelBase
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@reversion.register(ignore_duplicates=True)
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class Reseni(SeminarModelBase):
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class Meta:
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db_table = 'seminar_reseni'
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verbose_name = 'Řešení'
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verbose_name_plural = 'Řešení'
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#ordering = ['-problem', 'resitele'] # FIXME: Takhle to chceme, ale nefunguje to.
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ordering = ['-cas_doruceni']
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# Interní ID
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id = models.AutoField(primary_key = True)
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# Ke každé dvojici řešní a problém existuje nanejvýš jedno hodnocení, doplnění vazby.
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problem = models.ManyToManyField(Problem, verbose_name='problém', help_text='Problém',
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through='Hodnoceni')
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resitele = models.ManyToManyField(Resitel, verbose_name='autoři řešení',
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help_text='Seznam autorů řešení', through='Reseni_Resitele')
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cas_doruceni = models.DateTimeField('čas_doručení', default=timezone.now, blank=True)
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FORMA_PAPIR = 'papir'
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FORMA_EMAIL = 'email'
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FORMA_UPLOAD = 'upload'
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FORMA_CHOICES = [
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(FORMA_PAPIR, 'Papírové řešení'),
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(FORMA_EMAIL, 'Emailem'),
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(FORMA_UPLOAD, 'Upload přes web'),
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]
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forma = models.CharField('forma řešení', max_length=16, choices=FORMA_CHOICES, blank=False,
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default=FORMA_EMAIL)
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text_cely = models.OneToOneField('ReseniNode', verbose_name='Plná verze textu řešení',
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blank=True, null=True, related_name="reseni_cely_set",
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on_delete=models.PROTECT)
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poznamka = models.TextField('neveřejná poznámka', blank=True,
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help_text='Neveřejná poznámka k řešení (plain text)')
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zverejneno = models.BooleanField('řešení zveřejněno', default=False,
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help_text='Udává, zda je řešení zveřejněno')
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def verejne_url(self):
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return str(reverse_lazy('odevzdavatko_detail_reseni', args=[self.id]))
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def absolute_url(self):
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return "https://" + str(get_current_site(None)) + self.verejne_url()
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# má OneToOneField s:
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# Konfera
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# má ForeignKey s:
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# Hodnoceni
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def sum_body(self):
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return self.hodnoceni_set.all().aggregate(Sum('body'))["body__sum"]
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def __str__(self):
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return "{}({}): {}({})".format(self.resitele.first(),len(self.resitele.all()), self.problem.first() ,len(self.problem.all()))
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# NOTE: Potenciální DB HOG (bez select_related)
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def deadline_reseni(self):
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return Deadline.objects.filter(deadline__gte=self.cas_doruceni).order_by("deadline").first()
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## Pravdepodobne uz nebude potreba:
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# def save(self, *args, **kwargs):
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# if ((self.cislo_body is None) and (self.problem.cislo_reseni) and
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# (self.problem.typ == Problem.TYP_ULOHA)):
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# self.cislo_body = self.problem.cislo_reseni
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# super(Reseni, self).save(*args, **kwargs)
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class Hodnoceni(SeminarModelBase):
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class Meta:
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db_table = 'seminar_hodnoceni'
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verbose_name = 'Hodnocení'
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verbose_name_plural = 'Hodnocení'
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# Interní ID
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id = models.AutoField(primary_key = True)
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body = models.DecimalField(max_digits=8, decimal_places=1, verbose_name='body',
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blank=True, null=True)
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cislo_body = models.ForeignKey(Cislo, verbose_name='číslo pro body',
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related_name='hodnoceni', blank=True, null=True, on_delete=models.PROTECT)
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# V ročníku < 26 nastaveno na deadline vygenerovaný pro původní cislo_body
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deadline_body = models.ForeignKey(Deadline, verbose_name='deadline pro body',
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related_name='hodnoceni', blank=True, null=True, on_delete=models.PROTECT)
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reseni = models.ForeignKey(Reseni, verbose_name='řešení', on_delete=models.CASCADE)
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problem = models.ForeignKey(Problem, verbose_name='problém',
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related_name='hodnoceni', on_delete=models.PROTECT)
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feedback = models.TextField('zpětná vazba', blank=True, default='', help_text='Zpětná vazba řešiteli (plain text)')
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@property
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def body_celkem(self):
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# FIXME řeším jen prvního řešitele.
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return Hodnoceni.objects.filter(problem=self.problem, reseni__resitele=self.reseni.resitele.first(), body__isnull=False).aggregate(Sum("body"))["body__sum"]
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@body_celkem.setter
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def body_celkem(self, value):
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if value is None:
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self.body = None
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else:
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if self.body is None:
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self.body = 0
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if self.body_celkem is None:
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self.body += value
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else:
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self.body += value - self.body_celkem
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@property
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def body_neprepocitane(self):
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if self.body is None:
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return None
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from seminar.utils import inverze_vzorecku_na_prepocet
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return inverze_vzorecku_na_prepocet(self.body, self.reseni.resitele.count())
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@body_neprepocitane.setter
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def body_neprepocitane(self, value):
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if value is None:
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self.body = None
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else:
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from seminar.utils import vzorecek_na_prepocet
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self.body = vzorecek_na_prepocet(value, self.reseni.resitele.count())
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@property
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def body_neprepocitane_celkem(self):
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if self.body_celkem is None:
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return None
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from seminar.utils import inverze_vzorecku_na_prepocet
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return inverze_vzorecku_na_prepocet(self.body_celkem, self.reseni.resitele.count())
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@body_neprepocitane_celkem.setter
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def body_neprepocitane_celkem(self, value):
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if value is None:
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self.body = None
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else:
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from seminar.utils import vzorecek_na_prepocet
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self.body_celkem = vzorecek_na_prepocet(value, self.reseni.resitele.count())
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@property
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def body_max(self):
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if self.body_neprepocitane_max is None:
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return None
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from seminar.utils import vzorecek_na_prepocet
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return vzorecek_na_prepocet(self.body_neprepocitane_max, self.reseni.resitele.count())
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@property
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def body_neprepocitane_max(self):
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if not isinstance(self.problem.get_real_instance(), Uloha):
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return None
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return self.problem.uloha.max_body
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def __str__(self):
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return "{}, {}, {}".format(self.problem, self.reseni, self.body)
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def generate_filename(self, filename):
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return os.path.join(
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settings.SEMINAR_RESENI_DIR,
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aux_generate_filename(self, filename)
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)
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@reversion.register(ignore_duplicates=True)
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class PrilohaReseni(SeminarModelBase):
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class Meta:
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db_table = 'seminar_priloha_reseni'
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verbose_name = 'Příloha řešení'
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verbose_name_plural = 'Přílohy řešení'
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ordering = ['reseni', 'vytvoreno']
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# Interní ID
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id = models.AutoField(primary_key = True)
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reseni = models.ForeignKey(Reseni, verbose_name='řešení', related_name='prilohy',
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on_delete=models.CASCADE)
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vytvoreno = models.DateTimeField('vytvořeno', default=timezone.now, blank=True, editable=False)
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soubor = models.FileField('soubor', upload_to = generate_filename)
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poznamka = models.TextField('neveřejná poznámka', blank=True,
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help_text='Neveřejná poznámka k příloze řešení (plain text), např. o původu')
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res_poznamka = models.TextField('poznámka řešitele', blank=True,
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help_text='Poznámka k příloze řešení, např. co daný soubor obsahuje')
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def __str__(self):
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return str(self.soubor)
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def split(self):
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"Vrátí cestu rozsekanou po složkách. To se hodí v templatech"
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# Věřím, že tohle funguje, případně použít os.path nebo pathlib.
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return self.soubor.url.split('/')
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# Vazebna tabulka. Mozna se generuje automaticky.
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@reversion.register(ignore_duplicates=True)
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class Reseni_Resitele(models.Model):
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class Meta:
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db_table = 'seminar_reseni_resitele'
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verbose_name = 'Řešení řešitelů'
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verbose_name_plural = 'Řešení řešitelů'
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ordering = ['reseni', 'resitele']
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# Interní ID
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id = models.AutoField(primary_key = True)
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resitele = models.ForeignKey(Resitel, verbose_name='řešitel', on_delete=models.PROTECT)
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reseni = models.ForeignKey(Reseni, verbose_name='řešení', on_delete=models.CASCADE)
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# podil - jakou merou se ktery resitel podilel na danem reseni
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# - pouziti v budoucnu, pokud by resitele nemeli dostat vsichni stejne bodu za spolecne reseni
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def __str__(self):
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return '{} od {}'.format(self.reseni, self.resitel)
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# NOTE: Poteciální DB HOG bez select_related
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