Django中的CharField 和 FileField 主要讲FileField

# 这是django下的一张表

from django.db import models

class Auction(models.Model):
   
    # cover = models.CharField(verbose_name=‘封面‘, max_length=128,null=True, blank=True)
    cover = models.FileField(verbose_name=‘封面‘, max_length=128,null=True, blank=True)

from rest_framework import serializers

class AuctionModelForm(serializers.Serializer): 
 
　　class Meta: 
　　　　model = models.Auction 
　　 exclude = [‘cover‘]

from rest_framework import serializers
class AuctionModelForm(serializers.Serializer): 
      cover=serializers.CharField()
　　class Meta: 
　　　　model = models.Auction 
　　 exclude = [‘cover‘] 

from rest_framework import serializers
class AuctionModelForm(serializers.Serializer): 
    ct = serializers.SerializerMethodField()
　　class Meta: 
　　　　model = models.Auction 
　　exclude = [‘cover‘] 

    def get_ct(self,obj):
        # return obj.cover.path  带有拼接的url地址 不是我们想要的
          return obj.cover.name