Question

我的查询得到了重复的结果。我的结果只有少数被重复。我使用django 1.8和sqlite作为我的数据库。重复的结果似乎是相同的条目ID＃4和id＃14。我已经使用sql lite浏览器进行了检查，并确认每个ID只有一个条目。我也在使用django_tables2。

这是我的models.py：

@python_2_unicode_compatible  # only if you need to support Python 2
class Project(models.Model):
    name = models.CharField(max_length=50)
    jobNumber = models.CharField(max_length=8)
    shopOut = models.DateTimeField(null=True)
    shopIn = models.DateTimeField(null=True)
    delivery = models.DateTimeField(null=True)
    job1 = models.CharField(max_length=50, null=True)
    job2 = models.CharField(max_length=50, null=True)
    job3 = models.CharField(max_length=50, null=True)
    contractor = models.ForeignKey(Contractor, on_delete=models.CASCADE, default=101)
    created_by = models.ForeignKey(User, related_name='Project_created_by')
    created_date = models.DateTimeField(auto_now_add=True)
    modified_by = models.ForeignKey(User, related_name='Project_modified_by')
    modified_date = models.DateTimeField(auto_now=True)
    assigned_to = models.ManyToManyField(User, related_name='Project_assigned_to')
    def __str__(self):
        return self.name
    def save(self, *args, **kwargs):
        if not self.id:
            self.created_by = User.objects.get(id=1)
            self.modified_by = User.objects.get(id=1)
            super(Project, self).save(*args, **kwargs)
            year = datetime.datetime.now().year
            self.jobNumber = '{}{:04d}'.format(year, self.id)
        self.modified_by = User.objects.get(id=1)
        super(Project, self).save(*args, **kwargs)

这是我的table.py

class ProjectTable(tables.Table):
    class Meta:
        model = Project
        exclude = ('shopOut', 'shopIn', 'delivery', 'job1', 'job2', 'job3', 'created_by', 'modified_by', 'modified_date')
        attrs = {"class": "paleblue"}

这是我的views.py

def indexV(request):
    model = Project.objects.values("id","name","jobNumber", "contractor", "assigned_to", "created_date")
    table = ProjectTable(model)
    RequestConfig(request).configure(table)
    return render(request, 'project/index.html', {'table': table})

这是我的index.html：

{% block content %}
    <h1>Projects</h1>
    {% render_table table %}
{% endblock %}

如果还有其他需要的信息，请告诉我。如何删除查询中的重复条目？

Answer 1

<强>更新

如果您确定您的数据有效，请致电only 在你的查询应该解决这个问题。我认为问题是你在查询集上调用values后给出了dicts列表，但是你需要向ProjectTable提供一个查询集。

model = Project.objects.only("id","name","jobNumber", "contractor", "assigned_to", "created_date").distinct()

django有时会重复数据

1 个答案: