74 lines
2.6 KiB
Python
74 lines
2.6 KiB
Python
from flask import Blueprint, request, render_template, redirect, session, flash
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from definitions.models import Asset, db
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from functions.process_csv import get_csv_data
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from functions.validate_values import validate_values
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from config import item_attributes
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upload_bp = Blueprint('uploadcsv', __name__)
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@upload_bp.route('/uploadcsv', methods=['GET', 'POST'])
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def upload_file():
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# Check if primary attribute is defined
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primary_attrib = next((attrib for attrib in item_attributes if attrib.primary), None)
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if not primary_attrib:
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flash("Primary attribute not defined in configuration.", "error")
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return redirect(request.url)
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if request.method == 'POST':
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# Check if a file was uploaded
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if 'file' not in request.files:
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flash("No file uploaded.", "error")
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return redirect(request.url)
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file = request.files['file']
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# Check if the file is a CSV
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if file.filename == '' or not file.filename.endswith('.csv'):
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flash("Please upload a valid CSV file.", "error")
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return redirect(request.url)
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try:
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# Extract CSV data
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csvdata = get_csv_data(file)
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except Exception as e:
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flash(f"Error reading CSV file: {str(e)}", "error")
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return redirect(request.url)
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# Validate each row of data
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errors = []
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for i, row in enumerate(csvdata, start=1):
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error = validate_values(row)
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if error:
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errors.append(f"Row {i}: {error}")
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if errors:
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# Flash all errors and redirect back to the upload page
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for error in errors:
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flash(error, "error")
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return redirect(request.url)
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# Separate new and existing assets
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new_assets = []
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existing_assets = []
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for row in csvdata:
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primary_value = row[primary_attrib.attrib_name]
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asset_exists = Asset.query.filter_by(**{primary_attrib.attrib_name: primary_value}).first()
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if asset_exists:
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existing_assets.append(row)
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else:
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new_assets.append(row)
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# Store new assets in session for further processing
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session['new_assets'] = new_assets
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session['existing_assets'] = existing_assets
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# Redirect to preview page with the CSV data
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return render_template(
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'csv_preview.html',
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new_assets=new_assets,
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existing_assets=existing_assets,
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item_attributes=item_attributes
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)
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# Render the upload page for GET requests
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return render_template('upload.html') |