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118 lines
4.1 KiB
118 lines
4.1 KiB
import arrow
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from django.db import models
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from django.utils import timezone
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from django.contrib.auth import get_user_model
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from .manager import CategoryQuerySet
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User = get_user_model()
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class Like(models.Model):
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user = models.ForeignKey(User, on_delete=models.CASCADE)
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created_at = models.DateTimeField(auto_now_add=True)
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update_at = models.DateTimeField(auto_now=True)
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class Course(models.Model):
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STATUS_CHOICES = (
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(0, 'Pending'),
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(1, 'Published'),
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(2, 'Archived'),
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)
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author = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
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title = models.CharField('Название курса', max_length=100)
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short_description = models.TextField('Краткое описание курса')
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from_author = models.TextField('От автора', default='')
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cover = models.ImageField('Фон курса', upload_to='courses')
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price = models.DecimalField('Цена курса', help_text='Если цены нету, то курс бесплатный', max_digits=10, decimal_places=2, null=True, blank=True)
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is_infinite = models.BooleanField(default=False)
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deferred_start_at = models.DateTimeField('Отложенный запуск курса', help_text='Заполнить если курс отложенный', null=True, blank=True)
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category = models.ForeignKey('Category', on_delete=models.PROTECT)
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duration = models.IntegerField('Продолжительность курса', default=0)
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is_featured = models.BooleanField(default=False)
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url = models.URLField('Ссылка', default='')
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status = models.PositiveSmallIntegerField('Статус', default=0, choices=STATUS_CHOICES)
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likes = models.ManyToManyField(Like)
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materials = models.ManyToManyField('Material')
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created_at = models.DateTimeField(auto_now_add=True)
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update_at = models.DateTimeField(auto_now=True)
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@property
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def is_free(self):
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if self.price:
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return False
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return True
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@property
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def deferred_start_at_humanize(self):
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return arrow.get(self.deferred_start_at).humanize(locale='ru')
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@property
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def created_at_humanize(self):
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return arrow.get(self.created_at).humanize(locale='ru')
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@property
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def is_deferred_start(self):
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if not self.deferred_start_at:
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return False
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if timezone.now() < self.deferred_start_at:
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return True
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return False
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def __str__(self):
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return self.title
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class Meta:
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verbose_name = 'Курс'
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verbose_name_plural = 'Курсы'
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ordering = ['-created_at']
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class Category(models.Model):
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title = models.CharField('Название категории', max_length=100)
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def __str__(self):
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return self.title
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class Meta:
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verbose_name = 'Категория'
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verbose_name_plural = 'Категории'
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class Lesson(models.Model):
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title = models.CharField('Название урока', max_length=100)
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short_description = models.TextField('Краткое описание урока')
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course = models.ForeignKey(Course, on_delete=models.CASCADE, related_name='lessons')
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cover = models.ImageField('Фон урока', upload_to='lessons')
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created_at = models.DateTimeField(auto_now_add=True)
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update_at = models.DateTimeField(auto_now=True)
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def __str__(self):
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return self.title
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class Meta:
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verbose_name = 'Урок'
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verbose_name_plural = 'Уроки'
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ordering = ('title',)
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class Material(models.Model):
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title = models.CharField('Название материала', max_length=100)
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cover = models.ImageField('Фон материала', upload_to='lessons')
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short_description = models.TextField('Краткое описание материала')
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created_at = models.DateTimeField(auto_now_add=True)
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update_at = models.DateTimeField(auto_now=True)
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def __str__(self):
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return self.title
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class Meta:
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verbose_name = 'Материал'
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verbose_name_plural = 'Материалы'
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ordering = ('title',)
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