79 lines
2.4 KiB
Python
79 lines
2.4 KiB
Python
import wagtail.api.v2.serializers as wagtail_serializers
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from rest_framework.fields import SerializerMethodField
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from vbv_lernwelt.course.models import CoursePage
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from vbv_lernwelt.course.serializers import CourseCategorySerializer, CourseSerializer
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from vbv_lernwelt.learnpath.utils import get_wagtail_type
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def get_it_serializer_class(model, field_names):
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base_field_names = [
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"id",
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"title",
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"slug",
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"type",
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"translation_key",
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"frontend_url",
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]
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return wagtail_serializers.get_serializer_class(
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model,
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field_names=base_field_names + field_names,
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meta_fields=[],
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base=ItBaseSerializer,
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)
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class ItTypeField(wagtail_serializers.TypeField):
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def to_representation(self, obj):
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name = get_wagtail_type(obj)
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return name
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class ItBaseSerializer(wagtail_serializers.BaseSerializer):
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type = ItTypeField(read_only=True)
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children = SerializerMethodField()
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course = SerializerMethodField()
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course_category = CourseCategorySerializer(read_only=True)
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frontend_url = SerializerMethodField()
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meta_fields = []
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def __init__(self, *args, **kwargs):
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self.descendants = kwargs.pop("descendants", None)
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super().__init__(*args, **kwargs)
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def get_children(self, obj):
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if not self.descendants:
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self.descendants = [p for p in obj.get_descendants().specific()]
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children = _get_children(self.descendants, obj)
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return [
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c.specific.get_serializer_class()(
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c.specific, descendants=self.descendants
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).data
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for c in children
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]
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def get_course(self, obj):
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if hasattr(obj, "course"):
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return CourseSerializer(obj.course).data
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else:
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course_parent_page = obj.get_ancestors().exact_type(CoursePage).last()
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if course_parent_page:
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return CourseSerializer(course_parent_page.specific.course).data
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return ""
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def get_frontend_url(self, obj):
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if hasattr(obj, "get_frontend_url"):
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return obj.get_frontend_url()
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return ""
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def _get_descendants(pages, obj):
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return [c for c in pages if c.path.startswith(obj.path) and c.depth >= obj.depth]
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def _get_children(pages, obj):
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return [
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c for c in pages if c.path.startswith(obj.path) and obj.depth + 1 == c.depth
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]
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