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173 lines
7.0 KiB
173 lines
7.0 KiB
# -*- coding: utf-8 -*-
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import uuid
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import unidecode
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from django.contrib.postgres.fields import ArrayField
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from django.core.exceptions import ObjectDoesNotExist
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from django.db import models
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from django.template.defaultfilters import slugify
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from model_utils import Choices
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from lms.tools import decode_base64, get_real_name
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COURSE_LEVEL = (
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('B', 'Базовый'),
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('A', 'Продвинутый'),
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('E', 'Экспертный'),
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('B+A', 'Базовый + Продвинутый'),
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)
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COURSE_DIRECTION = (
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(3, 'Бизнес'),
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(2, 'Веб-дизайн'),
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(1, 'Разработка'),
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(4, 'Рисование'),
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(5, 'Музыка'),
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)
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class CourseManager(models.Manager):
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def update_or_create_course(self, image=None, big_image=None, id=0,
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big_mobile_image=None, slug=None,
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level=None, direction=None, **kwargs):
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slug = slug if slug else slugify(unidecode.unidecode(kwargs['title']))
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if image:
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kwargs['image'] = decode_base64(image, 'course/image%s.png' % slug)
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if big_image:
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kwargs['big_image'] = decode_base64(big_image, 'course/big_image%s.png' % slug)
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if big_mobile_image:
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kwargs['big_mobile_image'] = decode_base64(big_mobile_image, 'course/big_mobile_image%s.png' % slug)
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if level:
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kwargs['level'] = get_real_name(COURSE_LEVEL, level)
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if direction:
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kwargs['direction'] = get_real_name(COURSE_DIRECTION, direction)
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try:
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course = self.get(id=id)
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for i in kwargs:
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if kwargs[i]:
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setattr(course, i, kwargs[i])
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course.save()
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except ObjectDoesNotExist:
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kwargs['slug'] = slug
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course = self.create(**kwargs)
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return course
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class Course(models.Model):
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token = models.UUIDField(verbose_name="Токен", default=uuid.uuid4, primary_key=True, editable=False)
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slug = models.SlugField(unique=True, editable=False, max_length=127)
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title = models.CharField(verbose_name="Заголовок", max_length=255, unique=True)
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description = models.TextField(verbose_name='Описание', blank=True)
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level = models.CharField(verbose_name='Уровень', choices=COURSE_LEVEL, default='B', max_length=3)
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direction = models.SmallIntegerField(choices=COURSE_DIRECTION, verbose_name='Направление')
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public = models.BooleanField(verbose_name='Опубликовать', default=False)
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teachers = ArrayField(
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models.CharField(max_length=15, blank=True, verbose_name='Ссылки на преподов'), default=[])
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image = models.URLField(verbose_name='Изображение', blank=True, max_length=255)
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big_image = models.URLField(verbose_name='Большое изображение', blank=True, max_length=255)
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big_mobile_image = models.URLField(verbose_name='Под мобилку', blank=True,
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help_text='Большая картинка для мобильной версии', max_length=255)
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hidden = models.BooleanField(verbose_name='Видно только оплатившим', default=False)
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def __str__(self):
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return self.title
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def get_statistic(self):
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return {
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'topic_count': self.topic_set.all().count(),
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'task_count': sum([topic.vertex_set.count() for topic in self.topic_set.all()])
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}
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objects = CourseManager()
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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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class Topic(models.Model):
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course = models.ForeignKey(to=Course, verbose_name='курс')
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title = models.CharField(verbose_name='Название', max_length=255)
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description = models.TextField(verbose_name='Описание', blank=True, null=True)
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icon = models.ImageField(verbose_name='Иконка темы', null=True, blank=True)
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class Meta:
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verbose_name = "Тема"
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verbose_name_plural = "Темы"
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class Lesson(models.Model):
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token = models.UUIDField(verbose_name="Токен", default=uuid.uuid4, primary_key=True, editable=False)
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topic = models.ForeignKey(to=Topic, verbose_name='Тема')
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title = models.CharField(verbose_name='Название', max_length=255)
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description = models.TextField(verbose_name='Описание', blank=True, null=True)
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video = models.TextField(verbose_name='Код видео', blank=True, null=True)
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material_tokens = ArrayField(models.CharField(max_length=15, blank=True, verbose_name='Материалы урока'), default=[])
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free = models.BooleanField(default=False, verbose_name='Привилегии для узла не будут проверяться')
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sort = models.SmallIntegerField(unique=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 = ('sort', )
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class LessonDemand(models.Model):
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demand = models.ForeignKey(to='Demand')
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lesson = models.ForeignKey(to=Lesson)
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sort = models.SmallIntegerField(default=1)
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class Meta:
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verbose_name = "Порядок требований"
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verbose_name_plural = "Порядок требований"
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ordering = ('sort', )
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unique_together = ('lesson', 'demand', 'sort')
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class Demand(models.Model):
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CHECK_TYPES = Choices('student', 'teacher', 'support',)
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token = models.UUIDField(verbose_name="Токен", default=uuid.uuid4, primary_key=True, editable=False)
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name = models.CharField(max_length=31, verbose_name="Название", unique=True)
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checker = models.CharField(
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choices=CHECK_TYPES, default=CHECK_TYPES.teacher, max_length=15, verbose_name="Проверяющий",)
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min_balls = models.SmallIntegerField(default=50, verbose_name='Проходной бал')
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def __str__(self):
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return self.name
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class Meta:
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verbose_name = "Требования"
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verbose_name_plural = "Требования"
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class Field(models.Model):
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# TODO Нужно прикрутить предварительную валидацию
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FIELD_TYPES = Choices('text', 'char', 'boolean', 'file')
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demand = models.ForeignKey(to=Demand)
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label = models.CharField(max_length=255, verbose_name='Надпись у поля')
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type = models.CharField(choices=FIELD_TYPES, default=FIELD_TYPES.char, max_length=20)
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multiple = models.BooleanField(default=False)
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null = models.BooleanField(default=False)
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answers = ArrayField(models.CharField(max_length=255), blank=True, null=True)
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balls = models.SmallIntegerField(default=100, verbose_name='Вознаграждение')
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match = models.CharField(
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max_length=255,
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verbose_name='Если не нулевое значение, то при точном сопоставлении даёт положителбный ответ',
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blank=True, null=True)
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class Meta:
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verbose_name = "Поле"
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verbose_name_plural = "Поля"
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