Flask-Download-Btn defines a SQLALchemy Mixin for creating Bootstrap download buttons in a Flask application.
Project description
Flask-Download-Btn
Flask-Download-Btn defines a SQLALchemy Mixin for creating Bootstrap download buttons in a Flask application.
Its key features are:
- Automatic enabling and disabling: A download button is automatically disabled on click and re-enabling on download completion.
- Web form handling: Applications can modify a download button on click based on web form responses.
- Progress bar: Download buttons report progress using a progress bar updated with server-sent events.
Example: Basic use
Suppose we want to include a download button which downloads hello_world.txt
. On click, we want to disable the button and re-enable it when the file finishes downloading.
After setup, we can achieve this with the following:
@app.route('/')
def index():
btn = DownloadBtn.query.filter_by(name='example1').first()
if not btn:
btn = DownloadBtn()
btn.name = 'example1'
btn.text = 'Download Example 1'
btn.filenames = ['hello_world.txt']
db.session.add(btn)
db.session.commit()
return render_template('index.html', download_btn=btn)
Documentation
You can find the latest documentation at https://dsbowen.github.io/flask-download-btn.
License
Publications which use this software should include the following citation for SQLAlchemy-Function and its dependencies, SQLAlchemy-Function and SQLAlchemy-Mutable:
Bowen, D.S. (2019). Flask-Download-Btn[Computer software]. https://dsbowen.github.io/flask-download-btn.
Bowen, D.S. (2019). SQLAlchemy-Function [Computer software]. https://dsbowen.github.io/sqlalchemy-function.
Bowen, D.S. (2019). SQLAlchemy-Mutable [Computer software]. https://dsbowen.github.io/sqlalchemy-mutable.
This project is licensed under the MIT License LICENSE.
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