Vous ne pouvez pas sélectionner plus de 25 sujets Les noms de sujets doivent commencer par une lettre ou un nombre, peuvent contenir des tirets ('-') et peuvent comporter jusqu'à 35 caractères.

book.py 4.6KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105
  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. from sqlalchemy.sql import func
  16. import markdown
  17. book = Blueprint('book', __name__)
  18. # route for displaying all books in database
  19. @book.route('/books')
  20. def get_books():
  21. # get introductory paragraph Markdown
  22. with open('content/books.md', 'r') as f:
  23. intro_text = f.read()
  24. intro_text = markdown.markdown(intro_text)
  25. view = request.args.get('view')
  26. resource_type = 'book'
  27. books_query = Resource.query.filter_by(type=resource_type).order_by(func.random())
  28. for key in request.args.keys():
  29. if key != 'view':
  30. if (key == 'practice' and request.args.get(key) != ''):
  31. books_1 = books_query.join(Relationship, Relationship.first_resource_id == Resource.id, isouter=True).filter(Relationship.second_resource_id==request.args.get(key))
  32. books_2 = books_query.join(Relationship, Relationship.second_resource_id == Resource.id, isouter=True).filter(Relationship.first_resource_id==request.args.get(key))
  33. books_query = books_1.union(books_2)
  34. if (key != 'practice' and request.args.get(key) != ''):
  35. kwargs = {key: request.args.get(key)}
  36. books_query = books_query.filter_by(**kwargs)
  37. # finalise the query
  38. books = books_query.all()
  39. # get number of books
  40. count = len(books)
  41. # reorder books by book name
  42. books = sorted(books, key=lambda d: d.__dict__['name'].lower())
  43. # render Markdown as HTML
  44. for book in books:
  45. book.description = markdown.markdown(book.description)
  46. if view != 'list':
  47. # append relationships to each book
  48. append_relationships_multiple(books)
  49. # get values for filters
  50. # practices
  51. practices_filter = Resource.query.filter_by(type='practice').with_entities(Resource.id, Resource.name).all()
  52. # year
  53. year_filter = get_filter_values('year', resource_type)
  54. # typology
  55. typology_filter = get_filter_values('typology', resource_type)
  56. 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, intro_text=intro_text)
  57. # route for displaying a single book based on the ID in the database
  58. @book.route('/books/<int:book_id>')
  59. def show_book(book_id):
  60. book = get_full_resource(book_id)
  61. # render Markdown as HTML
  62. book.description = markdown.markdown(book.description)
  63. return render_template('book.html', resource=book)
  64. # route for editing a single book based on the ID in the database
  65. @book.route('/books/<int:book_id>/edit', methods=('GET', 'POST'))
  66. @login_required
  67. def edit_book(book_id):
  68. book = get_resource(book_id)
  69. resource_dropdown = Resource.query
  70. existing_relationships = get_relationships(book_id)
  71. if request.method == 'POST':
  72. if not request.form['name']:
  73. flash('Name is required!')
  74. else:
  75. book = Resource.query.get(book_id)
  76. book.name = request.form['name']
  77. book.description = request.form['description']
  78. book.author = request.form['author']
  79. book.year = request.form['year']
  80. book.bookUrl = request.form['bookUrl']
  81. book.isbn = request.form['isbn']
  82. book.typology = request.form['typology']
  83. db.session.commit()
  84. linked_resources = request.form.getlist('linked_resources')
  85. remove_linked_resources = request.form.getlist('remove_linked_resources')
  86. edit_relationships(book_id, linked_resources, remove_linked_resources, existing_relationships)
  87. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))
  88. return render_template('edit.html', resource=book, resource_dropdown=resource_dropdown, relationships=existing_relationships)
  89. # route for function to delete a single book from the edit page
  90. @book.route('/books/<int:book_id>/delete', methods=('POST',))
  91. @login_required
  92. def delete_book(book_id):
  93. delete_resource(book_id)
  94. return redirect(url_for('book.get_books',_external=True,_scheme=os.environ.get('SSL_SCHEME')))