Denver Public Library (DPL)

Preparation

1. Fork this repository.
2. Clone your new repository to your local machine.
3. Run bundle from the command line.
4. Run rake from the command line.

Tasks

Today we are going to build a system for a library to keep track of its books and their authors.

Iteration 1 Books

An existing Book class. We're going to add to the Book class so that it can respond to the following interaction pattern:

> require './lib/book'
# => true

> book = Book.new({author_first_name: "Harper", author_last_name: "Lee", title: "To Kill a Mockingbird", publication_date: "July 11, 1960"})
# => #<Book:0x007f98a9c6ace8 ...>

> book.author_first_name
# => "Harper"

> book.author_last_name
# => "Lee"

> book.title
# => "To Kill a Mockingbird"

> book.publication_date
# => "1960"

Iteration 2 Authors

Currently we have the beginnings of an Author class. Add to that class so that it can respond to the following interaction pattern:

> require "./lib/author"
# => true

> charlotte_bronte = Author.new({first_name: "Charlotte", last_name: "Bronte"})
# => #<Author:0x007fb410ada400>

> charlotte_bronte.books
# => []

> charlotte_bronte.add_book("Jane Eyre", "October 16, 1847")
# => #<Book:0x007f98a9c6ace8 @author_first_name="Charlotte", @author_last_name="Bronte", @publication_date="1847", @title="Jane Eyre">

> charlotte_bronte.books
# => [#<Book:0x007f98a9c6ace8 @author_first_name="Charlotte", @author_last_name="Bronte", @publication_date="10/16/1847", @title="Jane Eyre">]

> charlotte_bronte.add_book("Villette", "1853")
# => #<Book:0x007f98a9c6ace8 @author_first_name="Charlotte", @author_last_name="Bronte", @publication_date="1847", @title="Villette">

> charlotte_bronte.books
# => [#<Book:0x007f98a9c6ace8 @author_first_name="Charlotte", @author_last_name="Bronte", @publication_date="10/16/1847", @title="Jane Eyre">, #<Book:0x007f98a9c6add3 @author_first_name="Charlotte", @author_last_name="Bronte", @publication_date="1847", @title="Villette">]

Iteration 3 Library - Add a collection

Add a Library class with the following functionality:

> require './lib/library'
> require './lib/author'

> charlotte_bronte = Author.new({first_name: "Charlotte", last_name: "Bronte"})
> jane_eyre = charlotte_bronte.add_book("Jane Eyre", "October 16, 1847")
> villette  = charlotte_bronte.add_book("Villette", "1853")

> harper_lee  = Author.new({first_name: "Harper", last_name: "Lee"})
> mockingbird = harper_lee.add_book("To Kill a Mockingbird", "July 11, 1960")

> dpl = Library.new
# => #<Library:0x007fb41101f2f8>

> dpl.books
# => []

> dpl.add_to_collection(jane_eyre)
> dpl.books
# => [#<Book:0x007f98a9c6ace8...>]

> dpl.add_to_collection(mockingbird)
> dpl.add_to_collection(villette)
> dpl.books
# => [#<Book:0x007f98a9c6ace8...>, #<Book:0x007fb410e8e1f0...>, #<Book:0x007fb410ea56e8...>]

Iteration 4 Library - Get information about the collection

For this iteration, assume dpl is loaded with data from iteration 3.

> dpl.include?("To Kill a Mockingbird")
# => true

> dpl.include?("A Connecticut Yankee in King Arthur's Court")
# => false

> dpl.card_catalogue
# NOTE:this method returns an array of books in alphabetical order by author's last name
# => [#<Book:0x007f98a9c6ace8 @author_last_name="Bronte"...>, #<Book:0x007fb410ea56e8 @author_last_name="Bronte"...>, #<Book:0x007fb410e8e1f0 @author_last_name="Lee"...> ]

Iteration 5 Library - search

For this iteration, assume dpl is loaded with data from iteration 3.

> dpl.find_by_author("Charlotte Bronte")
# => {
#     "Jane Eyre" => #<Book:0x007f98a9c6ace8 @author_last_name="Bronte" @title="Jane Eyre"...>,
#     "Villette"  => #<Book:0x007fb410ea56e8 @author_last_name="Bronte" @title="Villette"...>
#    }

> dpl.find_by_publication_date("1960")
# => {
#     "To Kill a Mockingbird" => #<Book:0x007fb410e8e1f0 @publication_date="1960"...>
#    }