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先看下面的代码:
class Worker(models.Model): departments = moels.ManyToManyField(Department, verbose_name=u"部门列表", blank=True, related_name=‘workers‘) class Department(models.Model): name = models.CharField(u"名字", max_length=255) wx_id = models.CharField(u"部门id", max_length=64, null=True, blank=True, db_index=True) # 执行如下代码 worker = Worker.objects.get(pk=14) worker.departments = models.Department.objects.filter(wx_id__in=info.get("department")) for dept in worker.departments: print(dept.wx_id)
这个时候会报错‘ManyRelatedManager‘ object is not iterable, 原因是worker.departments是不可迭代的,可以使用for dept in worker.departments.all()来迭代
'ManyRelatedManager' object is not iterable
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原文地址:http://www.cnblogs.com/Raymon-Geng/p/5669865.html