django - 在 Django Admin 中将 csv 数据导入数据库

Question

我尝试通过调整管理员内部的模型形式将 csv 文件导入数据库:

模型.py:

class Data(models.Model):
    place = models.ForeignKey(Places)
    time = models.DateTimeField()
    data_1 = models.DecimalField(max_digits=3, decimal_places=1)
    data_2 = models.DecimalField(max_digits=3, decimal_places=1)
    data_3 = models.DecimalField(max_digits=4, decimal_places=1)

表格.py:

import csv
class DataImport(ModelForm):
    file_to_import = forms.FileField()

    class Meta:
        model = Data
        fields = ("file_to_import", "place")

    def save(self, commit=False, *args, **kwargs):
        form_input = DataImport()
        self.place = self.cleaned_data['place']
        file_csv = request.FILES['file_to_import']
        datafile = open(file_csv, 'rb')
        records = csv.reader(datafile)
        for line in records:
            self.time = line[1]
            self.data_1 = line[2]
            self.data_2 = line[3]
            self.data_3 = line[4]
            form_input.save()
        datafile.close()

管理员.py:

class DataAdmin(admin.ModelAdmin):
    list_display = ("place", "time")
    form = DataImport

admin.site.register(Data, DataAdmin)

但我无法导入我放在“file_to_import”字段中的文件。在 forms.py 中获取 AttributeError:“函数”对象没有属性“FILES”。

我做错了什么？

Answer 1

经过长时间的搜索，我找到了答案:使用标准表单在管理员内部创建 View

表格:

class DataInput(forms.Form):
    file = forms.FileField()
    place = forms.ModelChoiceField(queryset=Place.objects.all())

    def save(self):
        records = csv.reader(self.cleaned_data["file"])
        for line in records:
            input_data = Data()
            input_data.place = self.cleaned_data["place"]
            input_data.time = datetime.strptime(line[1], "%m/%d/%y %H:%M:%S")
            input_data.data_1 = line[2]
            input_data.data_2 = line[3]
            input_data.data_3 = line[4]
            input_data.save()

View :

@staff_member_required
def import(request):
    if request.method == "POST":
        form = DataInput(request.POST, request.FILES)
        if form.is_valid():
            form.save()
            success = True
            context = {"form": form, "success": success}
            return render_to_response("imported.html", context,
            context_instance=RequestContext(request))
    else:
        form = DataInput()        
        context = {"form": form}
        return render_to_response("imported.html", context,
        context_instance=RequestContext(request)) 

剩下的是这篇文章的一部分: http://web.archive.org/web/20100605043304/http://www.beardygeek.com/2010/03/adding-views-to-the-django-admin/