A表的model结构如下
class OTAProductModel(BaseMysqlModel):
id = models.AutoField(primary_key=True, verbose_name="id")
ota = models.ForeignKey('OTAModel', on_delete=models.CASCADE, related_name='ota_product', verbose_name="平台")
name = models.CharField(max_length=64, verbose_name="产品名称")
code = models.CharField(max_length=64, unique=True, verbose_name="产品编码")
history = HistoricalRecords(excluded_fields=['create_time', 'update_time'])
class Meta:
verbose_name = '平台产品管理'
verbose_name_plural = verbose_name
def __str__(self):
return '%s(%s)' % (self.name, self.ota)
关联的外键表 结构如下
class OTAModel(BaseMysqlModel):
id = models.AutoField(primary_key=True, verbose_name="id")
name = models.CharField(max_length=64, verbose_name="平台名称")
code = models.CharField(max_length=64, verbose_name="平台编号")
history = HistoricalRecords(excluded_fields=['create_time', 'update_time'])
class Meta:
verbose_name = '平台管理'
verbose_name_plural = verbose_name
def __str__(self):
return '%s(%s)' % (self.name, self.code)
想要的效果,在序列化A表时,展示出外键表B中的name,code字段,可以这样操作
在A表的序列话文件中
class OTAProductSerializer(serializers.ModelSerializer):
create_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M:%S', read_only=True)
update_time = serializers.DateTimeField(format='%Y-%m-%d %H:%M:%S', read_only=True)
ota_name = serializers.CharField(source='ota.name', read_only=True)
ota_code = serializers.CharField(source='ota.code', read_only=True)
message = OtaProductPromptMessageSerializer(many=True)
class Meta:
model = OTAProductModel
fields = '__all__'
ota_name = serializers.CharField(source=‘ota.name’, read_only=True),需要注意两个地方,其中ota.name的ota是A表的model字段名称,name是外键表B中的字段名称
from rest_framework import serializers
from project.models.project import ProjectModel
class ProjectSerializer(serializers.ModelSerializer):
principal_username = serializers.CharField(source='project_principal.cn', read_only=True)
progress_word = serializers.SerializerMethodField()
class Meta:
model = ProjectModel
exclude = ['create_time', 'update_time']
def get_progress_word(self, instance):
progress = instance.progress
word = ''
if 0 <= progress and progress <= 5:
word = '购前论证'
elif 5 < progress and progress <= 15:
word = '立项请示'
elif 15 < progress and progress <= 30:
word = '事前申请'
elif 30 < progress and progress < 40:
word = '采购计划'
elif 40 < progress and progress <= 55:
word = '招标采购'
elif 55 < progress and progress <= 60:
word = '中标'
elif 60 < progress and progress <= 65:
word = '合同签订'
elif 65 < progress and progress <= 70:
word = '合同备案'
elif 70 < progress and progress <= 75:
word = '项目实施'
elif 75 < progress and progress <= 80:
word = '验收'
elif 80 < progress and progress <= 90:
word = '监管验收'
elif 90 < progress and progress <= 95:
word = '固定资产报增'
elif 95 < progress:
word = '报账'
return word
需要注意的地方,如上图
model表
class PaymentModel(BaseMongoModel):
"""
支付列表
"""
SALETYPE = ((1, u'一次销售'),
(2, u'二次销售'))
sale_type = IntField(required=True, verbose_name='支付订单的订单类型', default=1, choices=SALETYPE)
class Meta:
verbose_name = '支付记录'
verbose_name_plural = verbose_name
def __str__(self):
return '%s' % (self.serial_number,)
序列化sale_type字段,可以这么操作
class PaymentSerializer(ser.DocumentSerializer):
sale_type_name = serializers.CharField(source='get_sale_type_display', read_only=True)
class Meta:
model = PaymentModel
fields = '__all__'
需要注意:source的格式:get_model的字段名_display
model
class EntranceModel(BaseModel):
name = models.CharField(max_length=128, verbose_name="入口名称")
depts = models.ManyToManyField('user.DeptModel', related_name='entrances', verbose_name='部门')
longitude = models.FloatField(null=True, blank=True, verbose_name='经度')
latitude = models.FloatField(null=True, blank=True, verbose_name='纬度')
class Meta:
verbose_name = '部门入口配置表'
verbose_name_plural = verbose_name
app_label = 'entrance'
Serializer
import logging
from rest_framework import serializers
from entrance.models import EntranceModel
from user.models import DeptModel
logger = logging.getLogger('system')
class EntranceSerializer(serializers.ModelSerializer):
depts = serializers.PrimaryKeyRelatedField(many=True, allow_empty=True, allow_null=True, required=False,
queryset=DeptModel.objects.all())
depts_name = serializers.SerializerMethodField()
class Meta:
model = EntranceModel
fields = '__all__'
def get_depts_name(self, instance):
names = instance.depts.all().values_list('name', flat=True)
return ','.join(names) if names else None