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127 lines
3.4 KiB
127 lines
3.4 KiB
from rest_framework import serializers
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import json
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# from django.contrib.auth import get_user_model
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# from django.core.exceptions import ObjectDoesNotExist
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from courses.models import Course, Vertex, Tutorial, Topic, Task
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class TutorialSerializer(serializers.ModelSerializer):
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class Meta:
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model = Tutorial
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exclude = ['id']
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class TaskSerializer(serializers.ModelSerializer):
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class Meta:
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model = Task
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exclude = ['id']
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class TopicSerializer(serializers.ModelSerializer):
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class Meta:
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model = Topic
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exclude = ['id']
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class MiniVertexSerializer(serializers.ModelSerializer):
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object = serializers.SerializerMethodField()
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type = serializers.SerializerMethodField()
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children = serializers.SerializerMethodField()
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class Meta:
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model = Vertex
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fields = ('id', 'title', 'type', 'object', 'children')
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@staticmethod
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def get_object(self):
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if self.content_type.model == 'tutorial':
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return TutorialSerializer(self.content_object).data
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elif self.content_type.model == 'topic':
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return TopicSerializer(self.content_object).data
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elif self.content_type.model == 'task':
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return TaskSerializer(self.content_object).data
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@staticmethod
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def get_type(self):
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return self.content_type.model
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@staticmethod
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def get_children(self):
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return json.loads(self.sort_map.dependent_elements)
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class VertexSerializer(MiniVertexSerializer):
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class Meta:
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model = Vertex
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fields = ('id', 'title', 'type', 'object', 'children', 'description')
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@staticmethod
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def get_children(self):
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return [VertexSerializer(Vertex.manager.get(id=i)).data
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for i in json.loads(self.sort_map.dependent_elements)]
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class CourseListSerializer(serializers.ModelSerializer):
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length = serializers.SerializerMethodField()
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level = serializers.SerializerMethodField()
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direction = serializers.SerializerMethodField()
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class Meta:
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model = Course
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fields = ['id', 'title', 'length',
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'level', 'direction', 'image', ]
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@staticmethod
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def get_length(self):
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return 15
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@staticmethod
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def get_level(self):
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return self.get_level_display()
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@staticmethod
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def get_direction(self):
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return self.direction.title
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class CourseTreeSerializer(serializers.ModelSerializer):
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children = serializers.SerializerMethodField()
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class Meta:
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model = Course
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fields = ['id', 'children']
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@staticmethod
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def get_children(self):
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return [MiniVertexSerializer(Vertex.manager.get(id=i)).data
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for i in json.loads(self.sort_map.dependent_elements)]
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class CourseDetailSerializer(serializers.ModelSerializer):
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level = serializers.SerializerMethodField()
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direction = serializers.SerializerMethodField()
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teachers = serializers.SerializerMethodField()
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class Meta:
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model = Course
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exclude = (
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'slug', 'mentors', 'page', 'sort',
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'preview', 'use_fail', 'basic_len',
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'addition_len', 'min_price', 'buy_icon',
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'must_build', 'keywords', 'recommend',
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)
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@staticmethod
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def get_level(self):
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return self.get_level_display()
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@staticmethod
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def get_direction(self):
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return self.direction.title
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@staticmethod
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def get_teachers(self):
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return [teacher.full_name() for teacher in self.teachers.all()]
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