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import os
from flask import (
Blueprint, flash, g, redirect, render_template, request, url_for, current_app
)
from werkzeug.exceptions import abort
from werkzeug.utils import secure_filename
from ustayml.views.auth import login_required
from ustayml.db import get_db, get_paginated_rows, get_row
bp = Blueprint('load_data', __name__, url_prefix='/load_data')
ALLOWED_EXTENSIONS = ['txt', 'csv']
@bp.route('/', methods=('GET', 'POST'))
@login_required
def index():
if request.method == 'POST':
# check if the post request has the file part
if 'diccionario' not in request.files:
flash('No file part')
return redirect(request.url)
file = request.files['diccionario']
# If the user does not select a file, the browser submits an
# empty file without a filename.
if file.filename == '':
flash('Por favor, suba el diccionario de variables')
return redirect(request.url)
if file and allowed_file(file.filename):
filename = secure_filename(file.filename)
file.save(os.path.join(current_app.config['DATASET_PATH'], filename))
return redirect(url_for('load_data.success', name=filename))
return render_template(
'load_data/index.html'
)
@bp.route('/success', methods=('GET', 'POST'))
@login_required
def success():
return render_template(
'load_data/success.html'
)
# Helper functions
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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