django-tastypie 初步实现
重写两个方法：def get_object_list(self, request):
request所对应的就是view中的request
写自己的逻辑，返回想要的数据
def obj_get_list(self, bundle, **kwargs):
return self.get_object_list(bundle.request)
class Price1(Resourse):自己定义模型，写自己所需要的字段
class meta:设置属性。
calss BaseJsonModel(): 创建一个Json数据的数据集
app下的model：
class Goods(models.Model):
name = models.CharField(max_length=10)
date = models.DateTimeField()
price = models.FloatField()
根目录下的url：
v1_api = Api(api_name='v1')
v1_api.register(Price())
v1_api.register(Price1())
urlpatterns = [
url(r'^admin/', include(admin.site.urls)),
url(r'^api/', include(v1_api.urls)),
]
app下的自己写一个py文件：
class BaseJsonModel(object):
'''
We need a generic object to shove data in/get data from for modelResource.
'''
def __init__(self, initial=None):
self.__dict__['_data'] = {}
if hasattr(initial, 'items'):
self.__dict__['_data'] = initial
def __getattr__(self, name):
return self._data.get(name, None)
def __setattr__(self, name, value):
self.__dict__['_data'][name] = value
def to_dict(self):
return self._data
#定义并返回的Json格式的数据集（主要）
class Price1(Resource):
'''
用ModelResource实现
'''
max_price = fields.CharField(attribute='max_p') # 最大值
min_price = fields.CharField(attribute='min_p') # 最小值
avg_price = fields.CharField(attribute='avg_p') # 平均
# datet = fields.CharField(attribute='datet')
# gid = fields.CharField(attribute='gid')
class Meta:
# objects_class = Goods
resource_name = 'price1'
# queryset = Goods.objects.filter(name='good1')
queryset = Goods.objects.all()
limit = 10
authorization = Authorization()
def get_object_list(self, request):
good = request.GET['good']
start_time = request.GET['start']
end_time = request.GET['end']
# queryset = Goods.objects.filter(name=good).order_by('-date')
queryset = Goods.objects.filter(
name=good, date__range=(start_time, end_time))
objects = queryset.values('name').annotate(
max_p=Max('price'),
min_p=Min('price'),
avg_p=Avg('price'),
# datet=('date'),
)
print(objects)
results = []
for obj in objects:
print(obj['name'])
object = BaseJsonModel() # 创建数据集
object.name = obj['name']
object.max_p = obj['max_p']
object.min_p = obj['min_p']
object.avg_p = obj['avg_p']
# object.datet = obj['datet']
results.append(object)
# print(result)
# for i in results:
# print(i.name)
return results
def obj_get_list(self, bundle, **kwargs):
return self.get_object_list(bundle.request)
