def has_reserved_book(user, book_id):
book = get_book_by_book_id(book_id)
books = get_book_by_user_trove(user)
if book in books:
return True
else:
return False
def look_book_detail_page(request, book_id):
user = auth.get_user(request)
book = get_book_by_book_id(book_id)
if book is None:
return render(request, 'error.html', {'user': user, 'error_message': '暂无此书籍'})
else:
book.price = float('%.2f' % (float(book.discount) * book.origin_price))
has_reserved = has_reserved_book(user, book.book_id)
return render(request, 'user/look_book_detail_page.html',
{'user': user, 'book': book, 'has_reserved': has_reserved})
def sold_out_or_putaway(request, book_id):
redirect_to = request.GET.get('redirect_to')
if redirect_to is None or redirect_to == '':
redirect_to = reverse('manager:home')
book = get_book_by_book_id(book_id)
if book.is_on_sale:
book.is_on_sale = False # 下架
else:
book.is_on_sale = True # 上架
book.save()
return redirect(redirect_to)
def trove_or_cancel_trove_book(request, book_id):
user = auth.get_user(request)
redirect_to = request.GET.get('redirect_to')
if redirect_to is None or redirect_to == '':
redirect_to = reverse('user:home')
book = get_book_by_book_id(book_id)
if book is not None:
if has_reserved_book(user, book_id): # 取消收藏
user.profile.trove_books.remove(book)
else: # 收藏
user.profile.trove_books.add(book)
return redirect(redirect_to)
def look_book_detail_page(request, book_id):
user = auth.get_user(request)
book = get_book_by_book_id(book_id)
if book is None:
return render(request, 'error.html', {
'user': user,
'error_message': '暂无此书籍'
})
else:
return render(request, 'manager/look_book_detail_page.html', {
'user': user,
'book': book
})
def modify_book_page(request, book_id):
user = auth.get_user(request)
if request.method == 'POST':
modify_book_form = ModifyBookForm(request.POST, request.FILES)
if modify_book_form.is_valid():
book_name = modify_book_form.cleaned_data.get('name')
publisher = modify_book_form.cleaned_data.get('publisher')
author = modify_book_form.cleaned_data.get('author')
category = modify_book_form.cleaned_data.get('category')
origin_price = modify_book_form.cleaned_data.get('origin_price')
discount = modify_book_form.cleaned_data.get('discount')
stock = modify_book_form.cleaned_data.get('stock')
cover = modify_book_form.cleaned_data.get('cover')
catalogue = modify_book_form.cleaned_data.get('catalogue')
summary = modify_book_form.cleaned_data.get('summary')
book_dic = {
'name': book_name,
'publisher': publisher,
'author': author,
'category': category,
'origin_price': origin_price,
'discount': discount,
'stock': stock
}
book_detail_dic = {
'cover': cover,
'catalogue': catalogue,
'summary': summary
}
result = modify_book(book_id, book_dic, book_detail_dic)
if result:
return render(request, 'manager/modify_book_successfully.html',
{
'user': user,
'book_id': book_id
})
else:
return render(request, 'error.html', {
'user': user,
'error_message': '出错啦'
})
else: # 表单出错
return render(request, 'manager/modify_book_page.html', {
'user': user,
'modify_book_form': modify_book_form
})
else: # 当正常访问时
book = get_book_by_book_id(book_id)
if book is None:
return render(request, 'error.html', {
'user': user,
'error_message': '出错啦'
})
else:
modify_book_form = ModifyBookForm({
'book_id':
book.book_id,
'name':
book.name,
'publisher':
book.publisher,
'author':
book.author,
'category':
book.category,
'origin_price':
book.origin_price,
'discount':
book.discount,
'stock':
book.stock,
'cover':
book.bookdetail.cover,
'catalogue':
book.bookdetail.catalogue,
'summary':
book.bookdetail.summary
})
return render(request, 'manager/modify_book_page.html', {
'user': user,
'modify_book_form': modify_book_form
})
def drop_book_from_shopping_cart(request, book_id):
user = auth.get_user(request)
book = get_book_by_book_id(book_id)
if book is not None and book in get_book_by_user_shopping_cart(user):
user.profile.shopping_cart.remove(book)
return redirect(reverse('user:look_shopping_cart_page'))
def add_book_to_shopping_cart(request, book_id):
user = auth.get_user(request)
book = get_book_by_book_id(book_id)
if book is not None and book not in get_book_by_user_shopping_cart(user):
user.profile.shopping_cart.add(book)
return redirect(reverse('user:look_book_detail_page', args=[book_id]))