160 lines
4.6 KiB
Python
Executable File
160 lines
4.6 KiB
Python
Executable File
"""
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Flask Documentation: http://flask.pocoo.org/docs/
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Jinja2 Documentation: http://jinja.pocoo.org/2/documentation/
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Werkzeug Documentation: http://werkzeug.pocoo.org/documentation/
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This file creates your application.
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"""
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from app import app, db
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from flask import Flask, render_template, request, redirect, url_for, flash, send_from_directory, jsonify, abort
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from app.forms import UserForm
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from app.models import Book, BookSchema
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import os
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from werkzeug.utils import secure_filename
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# import sqlite3
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ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'])
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book_schema = BookSchema()
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books_schema = BookSchema(many=True)
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def allowed_file(filename):
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return '.' in filename and \
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filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
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###
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# Routing for your application.
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###
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@app.route('/')
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def home():
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"""Render website's home page."""
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return render_template('home.html')
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@app.route('/about/')
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def about():
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"""Render the website's about page."""
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return render_template('about.html', name="Mary Jane")
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@app.route('/uploads/<filename>')
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def uploaded_file(filename):
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return send_from_directory(app.config['UPLOAD_FOLDER'],
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filename)
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@app.route('/books')
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def show_books():
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books = db.session.query(Book).all() # or you could have used User.query.all()
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return render_template('show_books.html', books=books)
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@app.route('/books/<int:id>')
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def show_book_by_id(id):
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book = Book.query.get(id)
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if not book:
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abort(404)
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else:
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return render_template('show_book_detail.html', book=book)
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@app.route('/add-book', methods=['POST', 'GET'])
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def add_book():
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user_form = UserForm()
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if request.method == 'POST':
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if user_form.validate_on_submit():
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# check if the post request has the file part
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if 'file' not in request.files:
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flash('No file part')
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return redirect(request.url)
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file = request.files['file']
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# if user does not select file, browser also
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# submit a empty part without filename
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if file.filename == '':
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flash('No selected file')
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return redirect(request.url)
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if file and allowed_file(file.filename):
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filename = secure_filename(file.filename)
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fullpath = os.path.join(app.config['UPLOAD_FOLDER'], filename)
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file.save(fullpath)
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title = user_form.title.data # You could also have used request.form['name']
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author = user_form.author.data # You could also have used request.form['email']
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tag = user_form.tag.data
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# save user to database
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book = Book(title, author, filename, tag)
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db.session.add(book)
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db.session.commit()
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flash("%s added to the library" % (title))
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return redirect(url_for('show_books'))
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else:
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flash('allowed file formats: %s' % ALLOWED_EXTENSIONS)
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flash_errors(user_form)
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return render_template('add_book.html', form=user_form)
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# Flash errors from the form if validation fails
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def flash_errors(form):
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for field, errors in form.errors.items():
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for error in errors:
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flash(u"Error in the %s field - %s" % (
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getattr(form, field).label.text,
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error
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))
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###
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# The API
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###
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@app.route('/api/books', methods=['GET'])
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def get_books():
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books = Book.query.all()
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data, errors = books_schema.dump(books)
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return jsonify({'books': data})
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@app.route('/api/books/<int:id>', methods=['GET'])
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def get_book_by_id(id):
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book = Book.query.get(id)
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book_result, error = book_schema.dump(book)
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if not book_result:
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return jsonify({"message": "Book could not be found."}), 400
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else:
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return jsonify({'book': book_result})
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###
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# The functions below should be applicable to all Flask apps.
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###
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@app.route('/<file_name>.txt')
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def send_text_file(file_name):
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"""Send your static text file."""
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file_dot_text = file_name + '.txt'
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return app.send_static_file(file_dot_text)
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@app.after_request
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def add_header(response):
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"""
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Add headers to both force latest IE rendering engine or Chrome Frame,
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and also to cache the rendered page for 10 minutes.
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"""
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response.headers['X-UA-Compatible'] = 'IE=Edge,chrome=1'
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response.headers['Cache-Control'] = 'public, max-age=600'
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return response
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@app.errorhandler(404)
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def page_not_found(error):
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"""Custom 404 page."""
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return render_template('404.html'), 404
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if __name__ == '__main__':
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app.run(debug=True,host="0.0.0.0",port="8080")
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