django-restframework-swagger 没有model时 自定义参数框

django-restframework-swagger 2.1.2（2.2.0也可以，UI更好看些，但是不方便测试，所以我选择2.1.2）

效果图

image.png

参数框：

class S2ViewList(GenericAPIView):#

serializer_class = S2createSerializer #指定序列化类，自动显示model body



schema = AutoSchema (

manual_fields=[

coreapi.Field (name='vxnet',required=False,location='query',description='',type='string'),

coreapi.Field (name='service_type',required=False,location='query',description='',

type='string'),

]

)

def get(self,request,format=None):

.....

def post(self, request,format=None):

.......

AutoSchema的参数对所有方法都一致，为了区分不同方法显示不同参数，参考AutoSchema源码，继承它写一个新类：

class RecycleSchema (AutoSchema):
    """
    Overrides 'get_manual_fields()' to provide Custom Behavior X
    """
    
    def __init__(self, manual_fields=None, delete_fields=None):
        """
        Parameters:

        * `manual_fields`: list of `coreapi.Field` instances that
            will be added to auto-generated fields, overwriting on `Field.name`
        """
        super (RecycleSchema, self).__init__ (manual_fields)
        if manual_fields is None:
            manual_fields = []
        self._manual_fields = manual_fields
        if delete_fields is None:
            delete_fields = []
        self._delete_fields = delete_fields
    
    def get_manual_fields(self, path, method):
        """Example adding per-method fields."""
        
        delete_fields = []
        if method == 'DELETE':
            delete_fields = self._delete_fields
        
        manual_fields = super ().get_manual_fields (path, method)
        return manual_fields + delete_fields
    
    def get_delete_fields(self, path, method):
        return self._delete_fields

view中：

class InstancesList(APIView):
    """
    get:
        获取回收站instances列表
    delete:
        彻底删除instance
    """
    schema = RecycleSchema(
        manual_fields=[
            coreapi.Field(
                name='Authorization',
                required='True',
                location='header',
                description='Authentication header',
                type='string'),
            coreapi.Field(
                name='DcCode',
                required='True',
                location='header',
                description='dccode header')],
        delete_fields=[
            coreapi.Field(
                name='instances',
                required=True,
                location="query",
                description='主机id')])

若想实现response body也显示model，考虑使用drf-yasg,其使用openapi，swagger界面更完善（复杂）：
https://github.com/axnsan12/drf-yasg/tree/23ebba420734d9760d2e60d4c3b057d7accc8996#code-generation