英文:
How to show name instead of id with foreighkey with django restframework
问题
我有一个Django应用程序。还有一个外键关系。但API调用显示的是ID而不是名称。但我想显示名称而不是ID。
所以这是属性：
category = models.ForeignKey(Category, related_name='animals', on_delete=models.CASCADE, verbose_name="test")
和序列化器：
class SubAnimalSerializer(serializers.ModelSerializer):class Meta:model = Animalfields = ['id', 'name', 'description', 'category', 'pet_list', 'images']read_only_fields = ['id']
所以这是API调用的一部分：
"animals": [{"id": 3,"name": "Vicuña","description": "kjhkkhkhkjhjkhj Hello","category": 6,"pet_list": "D","images": "http://192.168.1.135:8000/media/media/photos/animals/mammal.jpg"},{"id": 5,"name": "Goudhamster","description": "khkjh","category": 6,"pet_list": "C","images": "http://192.168.1.135:8000/media/media/photos/animals/imgbin_dog-grooming-puppy-cat-pet-png_I7rLPen.png"}],
我当然也搜索了一些东西。所以我找到了这个：
https://stackoverflow.com/questions/70219330/how-to-show-name-instad-of-id-in-django-foreignkey
但它不完全符合我的需求。
问题：如何在API调用中显示名称而不是ID。
英文:
I have a django application. And a foreign relationship. But the api calls shows the id instead of the name. But I want to show the name instead of the id.
So this is the property:
category = models.ForeignKey(Category, related_name='animals', on_delete=models.CASCADE, verbose_name="test")
and serializer:
class SubAnimalSerializer(serializers.ModelSerializer):class Meta:model = Animalfields = ['id', 'name', 'description',"category","pet_list", 'images' ]read_only_fields = ['id']
so this is part of the api call:
"animals": [{"id": 3,"name": "Vicuña","description": "kjhkkhkhkjhjkhj Hello","category": 6,"pet_list": "D","images": "http://192.168.1.135:8000/media/media/photos/animals/mammal.jpg"},{"id": 5,"name": "Goudhamster","description": "khkjh","category": 6,"pet_list": "C","images": "http://192.168.1.135:8000/media/media/photos/animals/imgbin_dog-grooming-puppy-cat-pet-png_I7rLPen.png"}],
And I googled something ofcourse. So I found this:
https://stackoverflow.com/questions/70219330/how-to-show-name-instad-of-id-in-django-foreignkey
But it doesn't exactly fit what I am looking for.
Question: how to show name instead of id in api call
答案1
得分: 1
你可以使用 SlugRelatedField 来处理：
class SubAnimalSerializer(serializers.ModelSerializer):category = serializers.SlugRelatedField(slug_field='name', queryset=Category.objects.all())class Meta:model = Animalfields = ['id', 'name', 'description', 'category', 'pet_list', 'images']read_only_fields = ['id']
为了写入，Category 中的 name 字段应该是唯一的，并最好具有 db_index=True。
英文:
You can work with a SlugRelatedField <sup>[drf-doc]</sup>:
<pre><code>class SubAnimalSerializer(serializers.ModelSerializer):
category = <b>serializers.SlugRelatedField(</b>
slug_field='name', queryset=Category.objects.all()
<b>)</b>
class Meta:model = Animalfields = ['id', 'name', 'description', 'category', 'pet_list', 'images']read_only_fields = ['id']</code></pre>
In order to write, the name field in Category should be unique, and preferrably have a db_index=True.
答案2
得分: 0
定义一个序列化器中的字段，并像这样使用其 source 属性：
class SubAnimalSerializer(serializers.ModelSerializer):category_name = serializers.CharField(source='category.name', read_only=True) # <====class Meta:model = Animalfields = ['id', 'name', 'description', 'category_name', 'pet_list', 'images']read_only_fields = ['id']
英文:
define a field in your serializer and use its source attribute like this:
class SubAnimalSerializer(serializers.ModelSerializer):category_name = serializers.CharField(source='category.name', read_only=True) # <====class Meta:model = Animalfields = ['id', 'name', 'description',"category_name","pet_list", 'images' ]read_only_fields = ['id']
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