Varia library working group XPPL. https://gitea.xpub.nl/XPUB/XPPL
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"""
Flask Documentation: http://flask.pocoo.org/docs/
Jinja2 Documentation: http://jinja.pocoo.org/2/documentation/
Werkzeug Documentation: http://werkzeug.pocoo.org/documentation/
This file creates your application.
"""
from app import app, db
from flask import Flask, render_template, request, redirect, url_for, flash, send_from_directory, jsonify, abort
import json
from sqlalchemy.sql.expression import func, select
from app.forms import UploadForm, EditForm, SearchForm
from app.models import Book, BookSchema, Author, AuthorSchema, Stack, StackSchema, UserIns
from app.cover import get_cover
import os
from werkzeug.utils import secure_filename
# import sqlite3
ALLOWED_EXTENSIONS = set(['txt', 'pdf', 'epub', 'chm', 'mobi'])
author_schema = AuthorSchema()
authors_schema = AuthorSchema(many=True)
book_schema = BookSchema()
books_schema = BookSchema(many=True)
stack_schema = StackSchema()
stacks_schema = StackSchema(many=True)
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
###
# Routing for your application.
###
@app.route('/')
def home():
"""Render website's home page."""
return render_template('home.html')
@app.route('/hello/<name>')
def hello(name):
return "Hello " + name
@app.route('/about/')
def about():
"""Render the website's about page."""
return render_template('about.html', name="Mary Jane")
@app.route('/uploads/<filename>')
def uploaded_file(filename):
return send_from_directory(app.config['UPLOAD_FOLDER'],
filename)
@app.route('/uploads/cover/<filename>')
def uploaded_file_cover(filename):
return send_from_directory(app.config['UPLOAD_FOLDER_COVER'],
filename)
@app.route('/books', methods= ['POST','GET'])
def show_books():
books = db.session.query(Book).all()
search = SearchForm(request.form)
if request.method == 'POST':
if search.select.data == 'Title':
return redirect((url_for('search_results', query=search.search.data)))
if search.select.data == 'Category':
return redirect((url_for('search_cat', query=search.search.data)))
return render_template('show_books.html', books=books, form=search)
@app.route('/updates', methods=['POST', 'GET'])
def get_updates():
userin = UserIns.query.filter_by(title="lastViewed").first()
return "XPPL / / / / / / / Last viewed: " + userin.info + " / / / / / / / "
@app.route('/scape', methods=['POST', 'GET'])
def scape():
if request.method == 'POST':
data = request.form
book = Book.query.get(data['id'])
print(book.scapeX)
book.scapeX = data['x']
book.scapeY = data['y']
db.session.commit()
books = db.session.query(Book).all() # or you could have used User.query.all()
return render_template('scape.html', books=books)
@app.route('/books_grid')
def show_books_grid():
books = db.session.query(Book).all() # or you could have used User.query.all()
return render_template('show_books_grid.html', books=books)
@app.route('/books/<int:id>')
def show_book_by_id(id):
book = Book.query.get(id)
userin = UserIns.query.filter_by(title="lastViewed").first()
if userin != None:
userin.info = book.title
db.session.commit()
else:
user_info = UserIns("lastViewed", book.title)
db.session.add(user_info)
db.session.commit()
if not book:
return render_template('red_link.html', id=id)
else:
return render_template('show_book_detail.html', book=book)
@app.route('/books/<int:id>/delete', methods=['POST', 'GET'])
def remove_book_by_id(id):
book_to_edit = Book.query.filter_by(id=id).first()
title = book_to_edit.title
Book.query.filter_by(id=id).delete()
#author_table = Author.query.filter_by(book_id=book_to_edit.id).delete()
db.session.commit()
flash("%s deleted from library" % (title))
return redirect(url_for('show_books'))
@app.route('/books/<int:id>/edit', methods=['POST', 'GET'])
def edit_book_by_id(id):
book_to_edit = Book.query.filter_by(id=id).first()
user_form = EditForm(title = book_to_edit.title, author =book_to_edit.authors, category = book_to_edit.category, year_published= book_to_edit.year_published)
if request.method == 'POST':
if user_form.validate_on_submit():
# check if the post request has the file part
title = user_form.title.data # You could also have used request.form['name']
input_authors = user_form.author.data # You could also have used request.form['email']
category = user_form.category.data
year_published = user_form.year_published.data
if year_published=="":
year_published = None
# save user to database
#book = Book(title, author, filename, cover, file_extension)
book = Book.query.filter_by(id=id).first()
book.title = title
book.category = category
book.year_published = year_published
#authors update
book.authors.clear()
for i, author in enumerate(input_authors):
author_name = author.get("author_name")
if author_name:
a = db.session.query(Author).filter_by(author_name=author_name).first()
if a == None:
a = Author(author_name=author_name)
db.session.add(a)
book.authors.append(a)
db.session.commit()
flash("%s updated" % (title))
return redirect(url_for('show_book_by_id', id=id))
return render_template('edit_book_detail.html', book=book_to_edit, form=user_form)
@app.route('/add-book', methods=['POST', 'GET'])
def add_book():
upload_form = UploadForm()
if request.method == 'POST':
if upload_form.validate_on_submit():
#get data from form
title = upload_form.title.data
authors = upload_form.author.data
category = upload_form.category.data
year_published = upload_form.year_published.data
if year_published=="":
year_published = None
#if upload with file
if upload_form.upload.data:
# check if the post request has the file part
if 'file' not in request.files:
flash('No file part')
return redirect(request.url)
file = request.files['file']
# if user does not select file, browser also
# submit a empty part without filename
if file.filename == '':
flash('No selected file')
return redirect(request.url)
if file and allowed_file(file.filename):
filename = secure_filename(file.filename)
allbooks = db.session.query(Book).all()
id = len(allbooks)+1
new_filename = str(id) +"_"+ filename
fullpath = os.path.join(app.config['UPLOAD_FOLDER'], new_filename)
name, file_extension = os.path.splitext(new_filename)
file.save(fullpath)
cover = get_cover(fullpath, name)
else:
flash('allowed file formats: %s' % ALLOWED_EXTENSIONS)
#if upload without file -> wishform, with potential PDF
if upload_form.wish.data:
#TO DO: make pdf generator
#file = open('app/uploads/potential.pdf')
#filename = 'potential.pdf'
#file_extension = '.pdf'
filename = ''
file_extension = ''
cover = ''
book = Book(title, filename, cover, file_extension, category,year_published)
db.session.add(book)
for author in authors:
author_name = author.get("author_name")
if author_name:
a = db.session.query(Author).filter_by(author_name=author_name).first()
if a == None:
a = Author(author_name=author_name)
db.session.add(a)
book.authors.append(a)
db.session.commit()
flash("%s added to the library" % (title))
return redirect(url_for('show_books'))
flash_errors(upload_form)
return render_template('add_book.html', form=upload_form)
# Flash errors from the form if validation fails
def flash_errors(form):
for field, errors in form.errors.items():
for error in errors:
flash(u"Error in the %s field - %s" % (
getattr(form, field).label.text,
error
))
#Authors
@app.route('/authors/<int:id>')
def show_author_by_id(id):
author = Author.query.get(id)
if not author:
abort (404)
else:
return render_template('show_author_detail.html', author=author)
@app.route('/authors/<int:id>/edit', methods=['POST', 'GET'])
def edit_author_by_id(id):
return "Ask the programmer."
##stacks
@app.route('/stacks')
def show_stacks():
stacks = db.session.query(Stack).all()
return render_template('show_stacks.html', stacks=stacks)
@app.route('/stacks/<int:id>', methods=['POST', 'GET'])
def show_stack_by_id(id):
stack = Stack.query.get(id)
if not stack:
abort (404)
else:
return render_template('show_stack_detail.html', stack=stack)
## search
@app.route('/search/titles/<query>/', methods=['POST', 'GET'])
def search_results(query):
search = SearchForm(request.form)
random_order=Book.query.order_by(func.random()).limit(10)
results=Book.query.filter(Book.title.contains(query)).all()
if not results:
upload_form = UploadForm(title= query, author='')
return render_template('red_link.html', form=upload_form, title=query)
if request.method == 'POST':
query = search.search.data
results = []
if search.select.data == 'Title':
return redirect((url_for('search_results', query=search.search.data)))
if search.select.data == 'Category':
return redirect((url_for('search_cat', query=search.search.data)))
return render_template('results.html', form=search, books=results, books_all=random_order, query=query)
@app.route('/search/cat/<query>/', methods=['POST', 'GET'])
def search_cat(query):
search = SearchForm(request.form)
random_order=Book.query.order_by(func.random()).limit(10)
results=Book.query.filter(Book.category.contains(query)).all()
if not results:
upload_form = UploadForm(category=query)
return render_template('red_link.html', form=upload_form, category=query)
if request.method == 'POST':
query = search.search.data
results = []
if search.select.data == 'Title':
return redirect((url_for('search_results', query=search.search.data)))
if search.select.data == 'Category':
return redirect((url_for('search_cat', query=search.search.data)))
return render_template('results.html', form=search, books=results, books_all=random_order, query=query)
###
# The API
###
@app.route('/api/books', methods=['GET'])
def get_books():
books = Book.query.all()
data = books_schema.dump(books)
#print(errors)
return jsonify({'books': data})
@app.route('/api/books/<int:id>', methods=['GET'])
def get_book_by_id(id):
book = Book.query.get(id)
data = book_schema.dump(book)
if not data:
return jsonify({"message": "Book could not be found."}), 400
else:
return jsonify({'book': data })
###
# The functions below should be applicable to all Flask apps.
###
@app.route('/<file_name>.txt')
def send_text_file(file_name):
"""Send your static text file."""
file_dot_text = file_name + '.txt'
return app.send_static_file(file_dot_text)
@app.after_request
def add_header(response):
"""
Add headers to both force latest IE rendering engine or Chrome Frame,
and also to cache the rendered page for 10 minutes.
"""
response.headers['X-UA-Compatible'] = 'IE=Edge,chrome=1'
response.headers['Cache-Control'] = 'public, max-age=600'
return response
@app.errorhandler(404)
def page_not_found(error):
"""Custom 404 page."""
return render_template('404.html'), 404
if __name__ == '__main__':
app.run(debug=True,host="0.0.0.0",port="8080")