AssertionError: `HyperlinkedIdentityField` requires the request in the serializer context. Add `context={'request': request}` when instantiating the serializer.
AssertionError: `HyperlinkedIdentityField` requires the request in the serializer context. Add `context={'request': request}` when instantiating the serializer.
老師這個(gè)報(bào)錯(cuò)是什么情況
2021-03-08
class?CourseSerializer(serializers.ModelSerializer): ????teacher?=?serializers.ReadOnlyField(source='teacher.username')?#?外鍵字段只讀 ????class?Meta: ????????model?=?Course ????????#?exclude?=?("id",)?#?注意元組中只有1個(gè)元素時(shí)不能寫成("id") ????????#?fields?=?('name',?'introduction',?'teacher',?'price') ????????fields?=?'__all__' ????????depth?=?2 #?class?CourseSerializer(serializers.HyperlinkedModelSerializer): #?????teacher?=?serializers.ReadOnlyField(source='teacher.username')?#?外鍵字段只讀 #?????class?Meta: #?????????model?=?Course #?????????#?url是默認(rèn)值，?可在settings.py中設(shè)置URL_FIELD_NAME使全局生效 #?????????fields?=?('id','url',?'name',?'introduction',?'teacher',?'price')用上面的