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Upload XML Files in Django, Parse XML & Compare with existing models dataset

Can someone give me a better approach for below use case please ?
upload XML file
Scan XML file with specific tags
Store required data in which format ? (I thought of building JSON dump ?)
I have data in different models for different components.
How can i compare data that i have in step3 with django models and produce some output ? ( Sort of data comparison )
Note : JSON Dump which i get at step 3 is full dump of required data and data at step 4 is being referred to small small chunks of data which has to be combined and compared against recently uploaded file JSON Dump

I would define a Model where you can store the uploaded file and a form.
(https://docs.djangoproject.com/en/3.2/topics/http/file-uploads/#handling-uploaded-files-with-a-model)
Either use lxml etree or generateDS to scan XML Files. (https://www.davekuhlman.org/generateDS.html)
To store you can use a JSON-Dump or a Picklefield where you can store the Object of the XML-File in it, if you use generateDS
Store the data in a the Database and write a model for it in Django. Try to make it as granular as possible so you can compare the new XML-File when you import it and maybe only store the difference as Objects with Pickle.
Hope that helps a bit.

Import XML to pre-generated PDF FORMS

I am trying to import XML data into pre-fixed PDF form. The PDF forms are elaborate and have many named fields. An example of two named fields are "Consequence" and "Cause". So, for this example i will have an XML as following :
<multiple>
<Causes> leak </Causes>
<Consequences> fire and explosion </Consequences>
</multiple>
How do I do import this XML into specific PDF form fields programatically? I would prefer Python however I am okay if it is JavaScript

How do I upload and manipulate excel file with Django?

Ok,
I had a look at the UploadFile Class documentation of the Django framework. Didn't find exactly what I am looking for?
I am creating a membership management system with Django. I need the staff to have the ability to upload excel files containing list of members (and their details) which I will then manipulate to map to the Model fields.
It's easy to do this with pandas framework for example, but I want to do it with Django if I can.
Any suggestions.
Thanks in advance

you can use xlrd to read excel files
in client side you just submit a form with file input.
on server uploaded file stored on request.FILES
read file and pass it to xlrd then process sheets and cells of each sheet

How do I access PDF form fields with python

I need to automatically save pdf form fields to a database and write some of them later to new forms I am sending out. I can save the fields no problem but I don't know how to write to a PDF form field .. I am using pdf miner but I can't find anything in it to do this.
Can any one point me in the direction of a solution?

Reports labs has a open source PDF kit that let you write PDFs, including form fields http://www.reportlab.com. They also have commercial product the reads PDFs. But I've only used the open source version.

I've never used it, but people seem to like PyPDF

Saving a Django form to a csv file

I have a Django form that is working fine. I'd like to save the data it submits to a CSV file. Is there a "best practice" way to do this?
I need to include blank fields in the CSV file where the user has not filled in a "required=False" field

You can find the document CSV File Reading and Writing very helpful for your problem.