[Flask] Uploading CSV file to flask, only first line being uploaded. Help !

[KirkmanJ]

@upload_csv_blueprint.route('/upload_csv', methods=['GET','POST'])
def upload_file():
    if request.method == 'POST':
        csvfile = request.files['file']
        reader = csv.DictReader(csvfile)
        data = [row for row in reader]
        for row in data:
            date_time_store = row['date_time']
            technician_store = row['technician']
            test_location_store = row['test_location']
            product_serial_number_store = row['product_serial_number']
            test_detail_store = row['test_detail']
            test_result_store = row['test_result']

            query = test_result(date_time = date_time_store,
                                technician_name = technician_store,
                                place_of_test = test_location_store,
                                serial_number=product_serial_number_store,
                                test_details=test_detail_store,
                                result=test_result_store)

            db.session.add(query)
            db.session.commit()
            return('Did it work?')
        else:
            return redirect(url_for('upload_csv.upload_csv_layout'))#

The code above is my current version. This version uploads the second line of the csv file ( the first line being the headings used to match up the columns.)
The csv files i will be uploading could contain up too 1000 lines of data. I was hoping the method I had constructed would loop and add all 1000 entries. But it appears to just quit after the first.

I am constructing my project on a Flask platform, using sql alchemy. If anyone knows where my error lies or knows of an easy way to upload a csv file into a sql database. Would be really appreciated as I have spent the better part of a 2 days searching for the answer.

[buran]

I think lines#24-26 should be unindented one level. At the moment you will return after first line.
Also you can iterate over reader, no need to construct data list

[KirkmanJ]

Im in two minds, half of me wants to give you a hug the other half wants to slap you because im annoyed it took me 2 days and i could not figure out that i just needed to hit backspaces twice :).

Thanks, huge help.

To clarify: unindenting lines 23- 26 by 1 solves the issue.