app/controllers/api_controller.rb
class ApiController < ApplicationController
before_filter :authenticate_user_from_token!, only: :books
before_filter :allow_cors
#before_filter :authenticate_user!
def book_info
book = Book.fetch_book_info_from_douban params[:isbn]
if book == nil
render json: {book: nil, message: 'There is no mathched book.'}
return
end
render json: book.to_json(include: [{:users =>
{except: [:api_key, :email, :created_at]}},
:total_available_instances])
end
def user_info
user = User.find_by_id params[:user_id]
if user == nil
render json: {user: nil, message: 'There is no mathched user.'}
return
end
render json: user.to_json(except: [:api_key, :created_at, :email], include: [:books])
end
def books
count = 10
@books = Book.order('id DESC').paginate(:page => params[:page], :per_page => count)
params[:page] ? current_page = params[:page] : current_page = '1'
render json: {books: @books,
current_page: current_page,
total_page: total_page(Book.count, count),
total_count: Book.count}
end
def user_books
user = User.find_by_id params[:user_id]
count = 10
@books = user.open_books.order('id DESC').paginate(:page => params[:page], :per_page => count)
params[:page] ? current_page = params[:page] : current_page = '1'
render json: {books: @books,
current_page: current_page,
total_page: total_page(user.open_books.count, count),
total_count: user.open_books.count}
end
def total_page(count, per_page)
count%per_page == 0 ? count/per_page : (count/per_page) +1
end
def auth
key = AuthKey.find_by_value params[:key].to_s.upcase
user = nil
if key== nil || key.actived == true
message = 'Sorry, The key is invalid,please change another one.'
status = 'error'
else
key.active
message = 'Authentication success.'
user = key.user
status = 'success'
end
render json: {user: user, message: message, status: status, key: params[:key]}
end
def search
@books = Book.where('name ilike ?', "%#{params[:keyword]}%").limit(24)
render json: {books: @books, total_count: @books.count}
end
def add_book
key = AuthKey.find_by_value params[:key]
if !key || !key.actived
render json: {status: 'error', message: 'key is invalid or not be actived, please change an other key.'}
return
end
book_info = Book.fetch_book_info_from_douban params[:isbn]
if book_info['code'] == 6000
render json: {status: 'error', message: 'ISBN is invalid, we can not find your book.'}
return
end
user = User.find_by_id key.user_id
instance = user.create_book_instance params[:isbn]
render json: {status: 'success', book: instance.book}
end
def borrow_book
key = AuthKey.find_by_value params[:key]
if !key || !key.actived
render json: {status: 'error', message: 'key is invalid or not be actived, please change an other key.'}
return
end
instance = BookInstance.find_by_id params[:instance_id]
if instance!=nil && instance.borrowed? != true
user = User.find_by_id key.user_id
user.borrow instance
render json: {message: 'Borrow book success.', status: 'success'}
return
end
render json: {message: 'Sorry, you can not borrow this book right now.', status: 'error'}
end
def return_book
key = AuthKey.find_by_value params[:key]
if !key || !key.actived
render json: {status: 'error', message: 'key is invalid or not be actived, please change an other key.'}
return
end
instance = BookInstance.find_by_id params[:instance_id]
user = User.find_by_id key.user_id
if user.borrowed_and_not_returned_books.include? instance
user.return_book instance
render json: {message: 'Return book success.', status: 'success'}
return
end
render json: {message: 'You do not borrowed this book right now.', status: 'error'}
end
end