def add_book(request):
if request.POST:
post = request.POST
try:
try:
book = Author.objects.get(ISBN = post["ISBN"])
return render_to_response("add_book.html", Context({"information":"Wrong ISBN!"}))
except:
try:
author = Author.objects.get(AuthorID = post["AuthorID"])
except:
return render_to_response("add_book.html",Context({"information":\
"The author doesn't exist! Please add the author first"}))
new_book = Book(
ISBN = post["ISBN"],
Title = post["Title"],
AuthorID = author,
Publisher = post["Publisher"],
PublishDate = post["PublishDate"],
Price = post["Price"])
new_book.save()
b = Context({"author":author.Name,"book_list":author.book_set.all()})
return render_to_response('search.html', b)
except:
return render_to_response("add_book.html", Context({"information":"Wrong information!"}))
else:
return render_to_response("add_book.html")
def update(request):
id = request.GET["id"]
book = Book.objects.get(id=int(id))
if request.POST:
post = request.POST
try:
try:
author = Author.objects.get(AuthorID = post["AuthorID"])
except:
return render_to_response("update.html",id,Context({"information":\
"The author doesn't exist! Please add the author first","book":book}))
new_book = Book(
ISBN = post["ISBN"],
Title = post["Title"],
AuthorID = author,
Publisher = post["Publisher"],
PublishDate = post["PublishDate"],
Price = post["Price"])
new_book.save()
book.delete()
return render_to_response('detail.html',Context({"book":new_book}))
except:
return render_to_response("update.html",id, Context({"information":"Wrong information!","book":book}))
return render_to_response("update.html",id,Context({"book":book}))