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book.py 3.7KB

2 jaren geleden
2 jaren geleden
2 jaren geleden
2 jaren geleden
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  1. # @name: book.py
  2. # @creation_date: 2022-04-05
  3. # @license: The MIT License <https://opensource.org/licenses/MIT>
  4. # @author: Simon Bowie <ad7588@coventry.ac.uk>
  5. # @purpose: book route for book-related functions and pages
  6. # @acknowledgements:
  7. # https://www.digitalocean.com/community/tutorials/how-to-make-a-web-application-using-flask-in-python-3
  8. from flask import Blueprint, render_template, request, flash, redirect, url_for
  9. from flask_login import login_required, current_user
  10. from .models import Resource
  11. from .resources import *
  12. from .relationships import *
  13. from . import db
  14. from sqlalchemy import text
  15. import os
  16. book = Blueprint('book', __name__)
  17. # route for displaying all books in database
  18. @book.route('/books')
  19. def get_books():
  20. type = 'book'
  21. books = Resource.query.filter_by(type=type)
  22. for key in request.args.keys():
  23. if key == 'practice':
  24. query = 'SELECT Resource.* FROM Resource LEFT JOIN Relationship ON Resource.id=Relationship.first_resource_id WHERE Relationship.second_resource_id=' + request.args.get(key) + ' AND Resource.type="' + type + '";'
  25. with db.engine.connect() as conn:
  26. books = conn.execute(text(query))
  27. else:
  28. kwargs = {'type': type, key: request.args.get(key)}
  29. books = Resource.query.filter_by(**kwargs)
  30. # get filters
  31. # practices
  32. practices_filter = Resource.query.filter_by(type='practice').with_entities(Resource.id, Resource.name)
  33. # year
  34. year_filter = get_filter_values('year', type)
  35. # typology
  36. typology_filter = get_filter_values('typology', type)
  37. return render_template('resources.html', resources=books, type=type, practices_filter=practices_filter, year_filter=year_filter, typology_filter=typology_filter)
  38. # route for displaying a single book based on the ID in the database
  39. @book.route('/books/<int:book_id>')
  40. def show_book(book_id):
  41. book = get_resource(book_id)
  42. relationships = get_relationships(book_id)
  43. book_data = get_book_data(book.isbn)
  44. return render_template('book.html', resource=book, relationships=relationships, book=book_data)
  45. # route for editing a single book based on the ID in the database
  46. @book.route('/books/<int:book_id>/edit', methods=('GET', 'POST'))
  47. @login_required
  48. def edit_book(book_id):
  49. book = get_resource(book_id)
  50. resource_dropdown = Resource.query
  51. existing_relationships = get_relationships(book_id)
  52. if request.method == 'POST':
  53. if not request.form['name']:
  54. flash('Name is required!')
  55. else:
  56. book = Resource.query.get(book_id)
  57. book.name = request.form['name']
  58. book.description = request.form['description']
  59. book.author = request.form['author']
  60. book.year = request.form['year']
  61. book.bookUrl = request.form['bookUrl']
  62. book.isbn = request.form['isbn']
  63. book.typology = request.form['typology']
  64. db.session.commit()
  65. linked_resources = request.form.getlist('linked_resources')
  66. remove_linked_resources = request.form.getlist('remove_linked_resources')
  67. edit_relationships(book_id, linked_resources, remove_linked_resources, existing_relationships)
  68. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))
  69. return render_template('edit.html', resource=book, resource_dropdown=resource_dropdown, relationships=existing_relationships)
  70. # route for function to delete a single book from the edit page
  71. @book.route('/books/<int:book_id>/delete', methods=('POST',))
  72. @login_required
  73. def delete_book(book_id):
  74. delete_resource(book_id)
  75. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))