184 lines
5 KiB
Python
184 lines
5 KiB
Python
from django.core.validators import RegexValidator
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from django.db import models
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from django.utils.translation import gettext, gettext_lazy as _
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from judge.models import Contest
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from judge.models.profile import Organization, Profile
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__all__ = [
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"Course",
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"CourseRole",
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"CourseResource",
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"CourseAssignment",
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]
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course_directory_file = ""
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class Course(models.Model):
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name = models.CharField(
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max_length=128,
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verbose_name=_("course name"),
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)
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about = models.TextField(verbose_name=_("organization description"))
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ending_time = models.DateTimeField(
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verbose_name=_("ending time"),
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)
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is_public = models.BooleanField(
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verbose_name=_("publicly visible"),
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default=False,
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)
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organizations = models.ManyToManyField(
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Organization,
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blank=True,
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verbose_name=_("organizations"),
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help_text=_("If private, only these organizations may see the course"),
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)
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slug = models.SlugField(
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max_length=128,
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verbose_name=_("course slug"),
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help_text=_("Course name shown in URL"),
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unique=True,
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validators=[
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RegexValidator("^[-a-zA-Z0-9]+$", _("Only alphanumeric and hyphens"))
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],
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)
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is_open = models.BooleanField(
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verbose_name=_("public registration"),
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default=False,
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)
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image_url = models.CharField(
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verbose_name=_("course image"),
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default="",
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max_length=150,
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blank=True,
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)
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def __str__(self):
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return self.name
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@classmethod
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def is_editable_by(cls, course, profile):
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userquery = CourseRole.objects.filter(course=course, user=profile)
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if userquery.exists():
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if userquery[0].role == "AS" or userquery[0].role == "TE":
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return True
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return False
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@classmethod
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def is_accessible_by(cls, course, profile):
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userqueryset = CourseRole.objects.filter(course=course, user=profile)
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if userqueryset.exists():
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return True
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else:
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return False
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@classmethod
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def get_students(cls, course):
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return CourseRole.objects.filter(course=course, role="ST").values("user")
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@classmethod
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def get_assistants(cls, course):
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return CourseRole.objects.filter(course=course, role="AS").values("user")
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@classmethod
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def get_teachers(cls, course):
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return CourseRole.objects.filter(course=course, role="TE").values("user")
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@classmethod
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def add_student(cls, course, profiles):
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for profile in profiles:
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CourseRole.make_role(course=course, user=profile, role="ST")
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@classmethod
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def add_teachers(cls, course, profiles):
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for profile in profiles:
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CourseRole.make_role(course=course, user=profile, role="TE")
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@classmethod
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def add_assistants(cls, course, profiles):
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for profile in profiles:
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CourseRole.make_role(course=course, user=profile, role="AS")
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class CourseRole(models.Model):
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course = models.ForeignKey(
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Course,
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verbose_name=_("course"),
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on_delete=models.CASCADE,
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db_index=True,
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)
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user = models.ForeignKey(
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Profile,
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verbose_name=_("user"),
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on_delete=models.CASCADE,
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related_name=_("user_of_course"),
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)
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class RoleInCourse(models.TextChoices):
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STUDENT = "ST", _("Student")
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ASSISTANT = "AS", _("Assistant")
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TEACHER = "TE", _("Teacher")
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role = models.CharField(
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max_length=2,
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choices=RoleInCourse.choices,
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default=RoleInCourse.STUDENT,
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)
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@classmethod
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def make_role(self, course, user, role):
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userqueryset = CourseRole.objects.filter(course=course, user=user)
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if userqueryset.exists():
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userqueryset[0].role = role
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else:
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couresrole = CourseRole()
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couresrole.course = course
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couresrole.user = user
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couresrole.role = role
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couresrole.save()
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class CourseResource(models.Model):
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course = models.ForeignKey(
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Course,
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verbose_name=_("course"),
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on_delete=models.CASCADE,
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db_index=True,
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)
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files = models.FileField(
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verbose_name=_("course files"),
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null=True,
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blank=True,
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upload_to=course_directory_file,
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)
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description = models.CharField(
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verbose_name=_("description"),
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blank=True,
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max_length=150,
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)
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order = models.IntegerField(null=True, default=None)
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is_public = models.BooleanField(
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verbose_name=_("publicly visible"),
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default=False,
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)
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def __str__(self):
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return f"Resource - {self.pk}"
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class CourseAssignment(models.Model):
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course = models.ForeignKey(
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Course,
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verbose_name=_("course"),
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on_delete=models.CASCADE,
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db_index=True,
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)
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contest = models.ForeignKey(
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Contest,
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verbose_name=_("contest"),
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on_delete=models.CASCADE,
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)
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points = models.FloatField(
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verbose_name=_("points"),
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)
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