def book_list(request):
if request.method == 'GET':
with sqlite3.connect(Connection.db_path) as conn:
conn.row_factory = sqlite3.Row
db_cursor = conn.cursor()
db_cursor.execute("""
select
b.id,
b.title,
b.isbn,
b.author,
b.year_published,
b.librarian_id,
b.location_id
from libraryapp_book b
""")
all_books = []
dataset = db_cursor.fetchall()
for row in dataset:
book = Book()
book.id = row['id']
book.title = row['title']
book.isbn = row['isbn']
book.author = row['author']
book.year_published = row['year_published']
book.librarian_id = row['librarian_id']
book.location_id = row['location_id']
all_books.append(book)
template = 'books/list.html'
context = {
'all_books': all_books
}
return render(request, template, context)
elif request.method == 'POST':
form_data = request.POST
with sqlite3.connect(Connection.db_path) as conn:
db_cursor = conn.cursor()
db_cursor.execute("""
INSERT INTO libraryapp_book
(
title, author, isbn,
year_published, location_id, librarian_id
)
VALUES (?, ?, ?, ?, ?, ?)
""",
(form_data['title'], form_data['author'],
form_data['isbn'], form_data['year_published'],
request.user.librarian.id, form_data["location"]))
return redirect(reverse('libraryapp:books'))
def create_library(cursor, row):
_row = sqlite3.Row(cursor, row)
library = Library()
library.id = _row["id"]
library.title = _row["title"]
library.address = _row["address"]
# Note: You are adding a blank books list to the library object
# This list will be populated later (see below)
library.books = list()
book = Book()
book.id = _row["book_id"]
book.title = _row["book_title"]
book.author = _row["author"]
book.isbn = _row["isbn"]
book.year_published = _row["year_published"]
book.location_id = _row["location_id"]
book.librarian_id = _row["librarian_id"]
# Return a tuple containing the library and the
# book built from the data in the current row of
# the data set
return (
library,
book,
)
def book_list(request):
if request.method == 'GET':
with sqlite3.connect(Connection.db_path) as conn:
conn.row_factory = sqlite3.Row
db_cursor = conn.cursor()
db_cursor.execute("""
select
b.id,
b.title,
b.isbn,
b.author,
b.year_published,
b.librarian_id,
b.location_id
from libraryapp_book b
""")
all_books = []
dataset = db_cursor.fetchall()
for row in dataset:
book = Book()
book.id = row['id']
book.title = row['title']
book.isbn = row['isbn']
book.author = row['author']
book.year_published = row['year_published']
book.librarian_id = row['librarian_id']
book.location_id = row['location_id']
all_books.append(book)
template = 'books/list.html'
context = {
'all_books': all_books
}
return render(request, template, context)
def book_list(request):
if request.method == 'GET':
with sqlite3.connect(Connection.db_path) as conn:
conn.row_factory = sqlite3.Row
db_cursor = conn.cursor()
db_cursor.execute("""
select
b.id,
b.title,
b.ISBN_number,
b.author,
b.year,
b.librarian_id,
b.location_id
from libraryapp_book b
""")
all_books = []
dataset = db_cursor.fetchall()
for row in dataset:
book = Book()
book.id = row['id']
book.title = row['title']
book.ISBN_number = row['ISBN_number']
book.author = row['author']
book.year = row['year']
book.librarian_id = row['librarian_id']
book.location_id = row['location_id']
all_books.append(book)
template = 'books/list.html' #holding the path and filename of the template created in templates/list.html
context = {'all_books': all_books}
return render(request, template, context)
def book_list(request):
if request.method == 'GET':
# opens, and then closes connection, because we use 'with'
with sqlite3.connect(Connection.db_path) as conn:
# make a row factory. sqlite3.Row basically puts keys on our tuples
conn.row_factory = sqlite3.Row
# create a cursor object
db_cursor = conn.cursor()
# define the SQL Query, which will be saved on the cursor
db_cursor.execute('''
select
b.id,
b.title,
b.isbn,
b.author,
b.year_published,
b.librarian_id,
b.location_id
from libraryapp_book b
''')
all_books = []
# get the data
dataset = db_cursor.fetchall()
# loop through dataset, create book instances, append to all_books
for row in dataset:
book = Book()
book.id = row['id']
book.title = row['title']
book.isbn = row['isbn']
book.author = row['author']
book.year_published = row['year_published']
book.librarian_id = row['librarian_id']
book.location_id = row['location_id']
all_books.append(book)
# variable name template assigned to the path to our HTML template
# that will be used for this view
template = 'books/list.html'
# dictionary of values passing into the template
context = {'all_books': all_books}
return render(request, template, context)
elif request.method == 'POST':
form_data = request.POST
with sqlite3.connect(Connection.db_path) as conn:
db_cursor = conn.cursor()
db_cursor.execute(
"""
INSERT INTO libraryapp_book
(
title, author, isbn,
year_published, location_id, librarian_id
)
VALUES (?, ?, ?, ?, ?, ?)
""", (form_data['title'], form_data['author'], form_data['isbn'],
form_data['year_published'], request.user.id,
form_data['location']))
return redirect(reverse('libraryapp:books'))
def book_list(request):
if request.method == 'GET':
with sqlite3.connect(Connection.db_path) as conn:
conn.row_factory = sqlite3.Row
db_cursor = conn.cursor()
db_cursor.execute("""
select
b.id,
b.title,
b.isbn,
b.author,
b.year_published,
b.librarian_id,
b.location_id
from libraryapp_book b
""")
all_books = []
dataset = db_cursor.fetchall()
for row in dataset:
book = Book()
book.id = row['id']
book.title = row['title']
book.isbn = row['isbn']
book.author = row['author']
book.year_published = row['year_published']
book.librarian_id = row['librarian_id']
book.location_id = row['location_id']
all_books.append(book)
# When a view wants to generate some HTML representations of data, it needs to specify a template to use.
# The template variable is holding the path and filename of the template you just created.
template = 'books/list.html'
# the render() method is invoked. That method takes the HTTP request as the first argument,
# the template to be used as the second argument, and then a dictionary containing the data to be used in the template.
# In this case, the dictionary has a single property labeled all_books and its value is the list of book objects that the view generates.
# The key name is able to be used in the template, which is why the template has the following loop.
context = {
'all_books': all_books
}
return render(request, template, context)
elif request.method == 'POST':
form_data = request.POST
with sqlite3.connect(Connection.db_path) as conn:
db_cursor = conn.cursor()
db_cursor.execute("""
INSERT INTO libraryapp_book
(
title, author, isbn,
year_published, location_id, librarian_id
)
VALUES (?, ?, ?, ?, ?, ?)
""",
(form_data['title'], form_data['author'],
form_data['isbn'], form_data['year_published'],
form_data["location"], request.user.librarian.id))
return redirect(reverse('libraryapp:books'))
