Nelze vybrat více než 25 témat Téma musí začínat písmenem nebo číslem, může obsahovat pomlčky („-“) a může být dlouhé až 35 znaků.

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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. import os
  15. book = Blueprint('book', __name__)
  16. # route for displaying all books in database
  17. @book.route('/books')
  18. def get_books():
  19. view = request.args.get('view')
  20. resource_type = 'book'
  21. books_query = Resource.query.filter_by(type=resource_type)
  22. for key in request.args.keys():
  23. if key != 'view':
  24. if (key == 'practice' and request.args.get(key) != ''):
  25. books_1 = books_query.join(Relationship, Relationship.first_resource_id == Resource.id, isouter=True).filter(Relationship.second_resource_id==request.args.get(key))
  26. books_2 = books_query.join(Relationship, Relationship.second_resource_id == Resource.id, isouter=True).filter(Relationship.first_resource_id==request.args.get(key))
  27. books_query = books_1.union(books_2)
  28. if (key != 'practice' and request.args.get(key) != ''):
  29. kwargs = {key: request.args.get(key)}
  30. books_query = books_query.filter_by(**kwargs)
  31. # finalise the query
  32. books = books_query.all()
  33. # get number of books
  34. count = len(books)
  35. if view != 'list':
  36. # append relationships to each book
  37. append_relationships_multiple(books)
  38. else:
  39. # reorder books by book name
  40. books = sorted(books, key=lambda d: d.__dict__['name'])
  41. # get values for filters
  42. # practices
  43. practices_filter = Resource.query.filter_by(type='practice').with_entities(Resource.id, Resource.name).all()
  44. # year
  45. year_filter = get_filter_values('year', resource_type)
  46. # typology
  47. typology_filter = get_filter_values('typology', resource_type)
  48. return render_template('resources.html', resources=books, type=resource_type, practices_filter=practices_filter, year_filter=year_filter, typology_filter=typology_filter, count=count, view=view)
  49. # route for displaying a single book based on the ID in the database
  50. @book.route('/books/<int:book_id>')
  51. def show_book(book_id):
  52. book = get_full_resource(book_id)
  53. return render_template('book.html', resource=book)
  54. # route for editing a single book based on the ID in the database
  55. @book.route('/books/<int:book_id>/edit', methods=('GET', 'POST'))
  56. @login_required
  57. def edit_book(book_id):
  58. book = get_resource(book_id)
  59. resource_dropdown = Resource.query
  60. existing_relationships = get_relationships(book_id)
  61. if request.method == 'POST':
  62. if not request.form['name']:
  63. flash('Name is required!')
  64. else:
  65. book = Resource.query.get(book_id)
  66. book.name = request.form['name']
  67. book.description = request.form['description']
  68. book.author = request.form['author']
  69. book.year = request.form['year']
  70. book.bookUrl = request.form['bookUrl']
  71. book.isbn = request.form['isbn']
  72. book.typology = request.form['typology']
  73. db.session.commit()
  74. linked_resources = request.form.getlist('linked_resources')
  75. remove_linked_resources = request.form.getlist('remove_linked_resources')
  76. edit_relationships(book_id, linked_resources, remove_linked_resources, existing_relationships)
  77. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))
  78. return render_template('edit.html', resource=book, resource_dropdown=resource_dropdown, relationships=existing_relationships)
  79. # route for function to delete a single book from the edit page
  80. @book.route('/books/<int:book_id>/delete', methods=('POST',))
  81. @login_required
  82. def delete_book(book_id):
  83. delete_resource(book_id)
  84. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))