在django admin中上载文件时出现csv错误
我正在通过管理员上传一个文件,我正在做一个小的清理,并将数据保存在模型中 所以在utils中,我有一个小函数在django admin中上载文件时出现csv错误,django,Django,我正在通过管理员上传一个文件,我正在做一个小的清理,并将数据保存在模型中 所以在utils中,我有一个小函数 def _map_file_to_model(row): _into_product = { "qr_id": "", "ean": "", "description": "", "category": "", "marketing_text": "", "bullet": "",
def _map_file_to_model(row):
_into_product = {
"qr_id": "",
"ean": "",
"description": "",
"category": "",
"marketing_text": "",
"bullet": "",
"brand_image": "",
"image": ""
}
return {
_into_product[key]: value
for key, value in row.items()
}
这是模型的表示形式。在管理层,我正在这样做
@admin.register(Product)
class ProductAdmin(admin.ModelAdmin):
change_list_template = 'product/products_blob.html'
date_hierarchy = 'created_at'
def get_urls(self):
urls = super().get_urls()
qr_urls = [
path('import-file/', self.import_file, name='import-file'),
]
return qr_urls + urls
def import_file(self, request):
if request.method == "POST":
_file = request.FILES['text_file']
reader = csv.reader(_file)
self.message_user(request, "You're text file has been imported")
_read_file = [_map_file_to_model(row) for row in reader]
_product_model = _read_file
Product.objects.bulk_create([
Product(**data) for data in _product_model
])
form = QrImportForm()
payload = {"form": form}
return render(
request, 'product/text_form.html', payload
)
以及完整的回溯
所以有人能帮我解释一下发生了什么,我已经准备好上传一个文件,所以不需要打开。。。但仍然如此 您的请求.FILES['text_file']是来自django的文件,而不是您的文件内容。在解析上传的文件之前,您需要调用csv.reader\u file.read来读取它。ah,感谢您的帮助,我找到了它,是的,实际上应该在上传时这样做
Traceback:
File "/home/copser/Documents/Project/qr-backend/venv/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "/home/copser/Documents/Project/qr-backend/venv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
115. response = self.process_exception_by_middleware(e, request)
File "/home/copser/Documents/Project/qr-backend/venv/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
113. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.7/contextlib.py" in inner
74. return func(*args, **kwds)
File "/home/copser/Documents/Project/qr-backend/server/products/admin.py" in import_file
36. _read_file = [_map_file_to_model(row) for row in reader]
File "/home/copser/Documents/Project/qr-backend/server/products/admin.py" in <listcomp>
36. _read_file = [_map_file_to_model(row) for row in reader]
Exception Type: Error at /admin/products/product/import-file/
Exception Value: iterator should return strings, not bytes (did you open the file in text mode?)