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57 lines
2.1 KiB
57 lines
2.1 KiB
from rest_framework import serializers
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from apps.course.models import Lesson, Participant, LessonCompletion
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from apps.quiz.serializers import QuizListSerializer
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class LessonSerializer(serializers.ModelSerializer):
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is_complated = serializers.SerializerMethodField()
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quizs = serializers.SerializerMethodField()
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permission = serializers.SerializerMethodField()
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class Meta:
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model = Lesson
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fields = ['id', 'title', 'priority', 'is_active', 'permission','duration', 'content_type', 'content_file', 'video_link', 'is_complated', 'quizs']
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def get_permission(self, obj):
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if student := self._get_authenticated_user():
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if not self._is_participant(student, obj.course):
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return False
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return True
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return False
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def _get_authenticated_user(self):
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"""Helper method to retrieve the authenticated user from the context."""
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request = self.context.get('request')
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return request.user if request and request.user.is_authenticated else None
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def _is_participant(self, student, course):
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"""Helper method to check if a student is a participant in the given course."""
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return Participant.objects.filter(student=student, course=course).exists()
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def get_is_complated(self, obj):
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request = self.context.get('request')
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if not request or not request.user.is_authenticated:
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return False
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user = request.user
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is_participant = Participant.objects.filter(
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student=user,
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course=obj.course
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).exists()
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if not is_participant:
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return False
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return LessonCompletion.objects.filter(
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student=user,
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lesson=obj
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).exists()
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def get_quizs(self, obj):
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quizzes = obj.quizzes.all() # استفاده از related_name 'quizzes' برای دسترسی به کوییزهای درس
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if quizzes.exists():
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return QuizListSerializer(quizzes, many=True, context=self.context).data
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return None
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