ModelSerializer使用知識点_serializers.SerializerMethodField()使用シーンのまとめ

serializers.SerializerMethodField       ，     ModelSerializer            ，  ，  ：
1、  ModelSerializer           

model  ：

A、Project

class Project(models.Model):
    """
       
    """
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=50, verbose_name='    ')
    version = models.CharField(max_length=50, verbose_name='  ')
    description = models.CharField(max_length=1024, blank=True, null=True, verbose_name='  ')
    status = models.BooleanField(default=True, verbose_name='  ')
    LastUpdateTime = models.DateTimeField(auto_now=True, verbose_name='      ')
    createTime = models.DateTimeField(auto_now_add=True, verbose_name='    ')
    user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, max_length=1024, verbose_name='   ')

    def __unicode__(self):
        return self.name

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '  '
        verbose_name_plural = '  '

B、ApiInfo （ project   ）

 
   
class ApiInfo(models.Model):
    """
        
    """
    id = models.AutoField(primary_key=True)
    project = models.ForeignKey(Project, related_name='api_project', on_delete=models.CASCADE, verbose_name='    ')

    def __unicode__(self):
        return self.name

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '  '
        verbose_name_plural = '    '
  
 
  
2、project ModelSerializer  ：

  
class ProjectSerializer(serializers.ModelSerializer):
    """
           
    """
    apiCount = serializers.SerializerMethodField()
    LastUpdateTime = serializers.DateTimeField(format="%Y-%m-%d %H:%M:%S", required=False, read_only=True)
    createTime = serializers.DateTimeField(format="%Y-%m-%d %H:%M:%S", required=False, read_only=True)
    user = serializers.CharField(source='user.first_name')

    class Meta:
        model = Project
        fields = ('id', 'name', 'version', 'type', 'status', 'LastUpdateTime', 'createTime', 'apiCount',
                  'dynamicCount', 'memberCount', 'description', 'user')

    def get_apiCount(self, obj):
        return obj.api_project.all().count()


   obj.          related_name           ，            model   （ obj.api_project.all().count()、obj.api_project.get（XXX    ）.XXX  ），            
  
 
  
2、 ModelSerializer    choice        
model  ， choice    status 
  
class ApiInfo(models.Model):
    """
        
    """
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=50, verbose_name='    ')
    status = models.CharField(max_length=50, verbose_name='  ', choices=API_STATUS_CHOICES)


  
ModelSerializer  ：

  
class ApiDownLoanListSerializer(serializers.ModelSerializer):
    """
               
    """
    status = serializers.SerializerMethodField()
    def get_status(self, obj):
        return obj.get_status_display()

    class Meta:
        model = ApiInfo
        fields = ('id',  'name','status'）
  
 
   
  serializers.SerializerMethodField        get_status_display()  choice   
  
  
 
   
3、 ModelSerializer    onetone      
  
 
   
model  ，AutomationCaseApi
  
class AutomationCaseApi(models.Model):
    """
          
    """
    id = models.AutoField(primary_key=True)
    automationTestCase = models.ForeignKey(AutomationTestCase, on_delete=models.CASCADE,
                                           verbose_name='  ', related_name="api")
    name = models.CharField(max_length=50, verbose_name='    ')

    def __unicode__(self):
        return self.name

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '    '
        verbose_name_plural = '      '
  
 
   
AutomationHeadRaw, AutomationCaseApi   
  
class AutomationHeadRaw(models.Model):
    """
            json    
    """
    id = models.AutoField(primary_key=True)
    automationCaseApi = models.OneToOneField(AutomationCaseApi, related_name='headerRaw',
                                             on_delete=models.CASCADE, verbose_name='  ')
    data = models.TextField(verbose_name='      json  ', blank=True, null=True)

    class Meta:
        verbose_name = '   json    '
        verbose_name_plural = '   json      '

  
ModelSerializer  ：
  
class AutomationCaseApiParamSerializer(serializers.ModelSerializer):
    """
                  
    """
    headerRaw = serializers.SerializerMethodField()

    def get_headerRaw(self, obj):
        if obj.headerRaw:
            return obj.headerRaw.data
        return None

    class Meta:
        model = AutomationCaseApi
        fields = ('id', 'name', 'apiAddress', 'parameterRaw', 'responseParameterRaw', 'headerRaw')
  
 
  
  serializers.SerializerMethodField        obj.related_name  choice   
  



  
転載先:https://www.cnblogs.com/yoyo008/p/11586006.html