如何通过明确添加对象的字段添加在Django夹具的关系？

Question

我与Django框架工作。我有两个模型：Component和ComponentProperty。

class Component(models.Model): 
    name = models.CharField(unique=True, max_length=255) 
    component_properties = models.ManyToManyField(ComponentProperty) 

class ComponentProperty(models.Model): 
    label = models.CharField(unique=True, max_length=255) 
    component_type = models.CharField(max_length=255) 

和串行：

class ComponentSerializer(serializers.ModelSerializer): 
    class Meta: 
     model = Component 
     fields = ('name', 'component_properties') 
     depth = 1 

class ComponentPropertySerializer(serializers.ModelSerializer): 
    class Meta: 
     model = ComponentProperty 
     fields = ('label', 'component_type') 

我试图用夹具来加载数据。我写和夹具文件，看起来像这样：

[ { 
"pk": 1, 
"model": "api.componentproperty", 
"fields": { 
    "label": "label", 
    "component_type": "text" 
}}, 
{ 
"pk": 2, 
"model": "api.componentproperty", 
"fields": { 
    "label": "description", 
    "component_type": "text", 
}},{ 
"pk": 1, 
"model": "api.component", 
"fields": { 
    "name": "text", 
    "component_properties": [1, 2]}}] 

这工作正常！但我有20个装置要加载。我想有夹具（component.json例如）是这样的波纹管：

[{ 
"pk": null, 
"model": "api.component", 
"fields": { 
    "name": "text", 
    "component_properties": [{ 
"pk": null, 
"model": "api.componentproperty", 
"fields": { 
    "label": "label", 
    "component_type": "text" 
}}, { 
"pk": null, 
"model": "api.componentproperty", 
"fields": { 
    "label": "description", 
    "component_type": "text", 
}}]}}] 

蛋糕上的糖衣必须灯具指定如here主键。请，任何人都可以帮助我写这些夹具没有派克和上述关系？

Answer 1

据我了解，你要在你的ComponentSerializer执行Component properties嵌套系列化。

它可以，如果你使用来完成你的ComponentPropertySerializer您ComponentSerializer内：

class ComponentPropertySerializer(serializers.ModelSerializer): 
    class Meta: 
     model = ComponentProperty 
     fields = ('label', 'component_type') 


class ComponentSerializer(serializers.ModelSerializer): 
    # Django REST Framework supports nested serialization 
    # You serialize your *component_properties* with your ComponentPropertySerializer 
    # As they are many properties, you use *many=True* 

    component_properties = ComponentPropertySerializer(many=True, read_only=True) 

    class Meta: 
     model = Component 
     fields = ('name', 'component_properties') 
     depth = 1 

我认为这应该再现所需的输出。嵌套序列化在Django REST Framework's docs中非常有用并且有详细记录。