问题描述
我正在上传.xls文件，需要先检查以下情况，然后再将其保存到模型/数据库中.要求:1.如何计算总行数并将其与某个值进行比较，以及 len(row)< = count(任何变量).2.如何在1天内重置计数变量. resource.py
I am uploading a .xls file and need to check the below condition before it saves to the model/database.requirement:1.how to count the total no of rows and compare it with some value and if len(row)<=count(any variable).2. how to reset count variable in 1 day.resource.py
class CTSResource(resources.ModelResource):
class meta:
Model=CTA
def before_import(self, dataset, using_transactions, dry_run, **kwargs):
--Logic code---
--Logic code---
我正在尝试在我的views.py文件中的文件处理级别实现它，如下所示.
I am trying to implement it at the file processing level in my views.py file as shown below.
def CTA_upload(request):
try:
if request.method == 'POST':
movie_resource = CTAResource()
##we will get data in movie_resources####
dataset = Dataset()
new_movie = request.FILES['file']
if not new_movie.name.endswith('xls'):
messages.info(request, 'Sorry Wrong File Format.Please Upload valid format')
return render(request, 'app/uploadinfo.html')
messages.info(request, 'Uploading Data Line by Line...')
imported_data = dataset.load(new_movie.read(), format='xls')
count = 1
for data in imported_data:
value = CTA(
data[0],
data[1],
data[2],
data[3],
data[4],
data[5],
data[6],
data[7],
data[8],
)
count = count + 1
value.save()
# messages.info(request, count)
# time.sleep(1)
messages.info(request, 'File Uploaded Successfully...')
except:
messages.info(request,'Same Email ID has been observed more than once.Except that other records has been added../nPlease Make sure Email field should be unique.')
return render(request,'app/cta.html')
推荐答案
不确定我理解这个问题，但是您可以轻松地按以下方式检查行数:
Not sure I understand the question but you can easily check the count of rows as follows:
class MyResource(BookResource):
some_count = 1
def before_import(self, dataset, using_transactions, dry_run, **kwargs):
if len(dataset) == self.some_count:
print("same len")
# you can add extra logic here to persist the count to some table
如果这没有帮助，请澄清问题.
Please clarify the question if this doesn't help.
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