tastypie - 列出相關資源密鑰而不是網址

Question

當我有相關資源時，我想列出外鍵，而不是該資源的網址。除了脫水之外，這可能如何？

Answer 1

我不確定沒有脫水現場就可能。我通常有處理轉換外鍵和many-to-many關係，有事的脫水這樣的實用功能：

#api_utils.py 
def many_to_many_to_ids(bundle, field_name): 
    field_ids = getattr(bundle.obj, field_name).values_list('id', flat=True) 
    field_ids = map(int, field_ids) 
    return field_ids 

def foreign_key_to_id(bundle, field_name): 
    field = getattr(bundle.obj, field_name) 
    field_id = getattr(field, 'id', None) 
    return field_id 

並將其應用到像這樣的字段：

#api.py 

from functools import partial 

class CompanyResource(CommonModelResource): 
    categories = fields.ManyToManyField(CompanyCategoryResource, 'categories') 

    class Meta(CommonModelResource.Meta): 
     queryset = Company.objects.all() 

    dehydrate_categories = partial(many_to_many_to_ids, field_name='categories') 


class HotDealResource(CommonModelResource): 
    company = fields.ForeignKey(CompanyResource, 'company') 

    class Meta(CommonModelResource.Meta): 
     queryset = HotDeal.objects.all() 

    dehydrate_company = partial(foreign_key_to_id, field_name='company')