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If you want to serialize a ManyToMany field, just write a serializer as you would for a OneToOne, but add the many=True
kwarg.
If you want to serialize them in a special way, for instance here, field ‘diplome’ being serialized as a count of all diplomes, you would use a SerializerMethodField
.
Oh, and your field infoDiplomee
!= infoDiplome
in your CVSerializer.
Source:stackexchange.com