Julia Baritz - Library plus

lib/library_plus.rb

@@ -14,11 +14,11 @@ def self.clear_db(db)
 
   def self.create_tables(db)
     db.exec <<-SQL
-      CREATE TABLE users(
+      CREATE TABLE IF NOT EXISTS users(
         id SERIAL PRIMARY KEY,
         name VARCHAR
       );
-      /* TODO: Create rest of the tables (books, etc.) */
+      # TODO: Create rest of the tables (books, etc.)
     SQL
   end
 

lib/library_plus/book_repo.rb

@@ -1 +1,54 @@
 # TODO
+module Library
+  class BookRepo
+
+    def self.all(db)
+      db.exec("SELECT * FROM books").to_a
+    end
+
+    def self.find(db, book_id)
+      db.exec("SELECT * FROM books WHERE id = $1", [book_id]).to_a[0]
+    end
+
+    def self.get_status(db, book_id)
+      db.exec("SELECT status from checkouts where bookid = $1", [book_id]).to_a[0]
+    end
+
+    def self.getborrower(db, book_id)
+      db.exec("SELECT name from users u join checkouts c on c.userid = u.id join books b on c.bookid = b.id where c.bookid = $1", [book_id]).to_a[0]
+    end
+
+    #Libary::UserRepo.save(db, {'id' => "1"})
+    def self.save(db, book_data)
+      if book_data['id']
+        # TODO: Update SQL statement
+        db.exec("UPDATE books SET title = $1, author = $2 WHERE id = $3 returning *", [book_data['title'], book_data['author'], book_data['id']]).to_a[0]
+      else
+        # TODO: Insert SQL statement
+        newbook = db.exec("INSERT INTO books (title, author) VALUES ($1, $2) returning *", [book_data['title'], book_data['author']]).to_a[0]
+        Library::BookRepo.addtocheckouts(db, newbook['id'])
+        end
+    end
+
+    def self.addtocheckouts(db, book_id)
+      db.exec("INSERT INTO checkouts (bookid, status, time) values ($1, 'available', $2)",[book_id, DateTime.now])
+    end
+
+    def self.checkout(db, user_id, book_id)
+      @findbook = Library::BookRepo.get_status(db, book_id)
+      if  @findbook["status"] == 'available'
+        db.exec("UPDATE checkouts SET status = 'checked out', userid = $1, time = $2 where bookid = $3",[user_id, DateTime.now, book_id])
+      end
+    end
+
+    def self.return(db, book_id)
+      db.exec("UPDATE checkouts SET status = 'available', userid = null, time = $1 where bookid = $2", [DateTime.now, book_id])
+    end
+
+    def self.destroy(db, user_id)
+      # TODO: Delete SQL statement
+    end
+
+  end
+end
+

lib/library_plus/user_repo.rb

@@ -1,3 +1,6 @@
+# Library::UserRepo.all(db)
+#Library::BookRepo.all(db) 
+
 module Library
   class UserRepo
 
@@ -9,13 +12,18 @@ def self.all(db)
 
     def self.find(db, user_id)
       # TODO: Insert SQL statement
+      db.exec("SELECT * FROM users WHERE id = $1", [user_id]).to_a[0]
     end
 
+    #Libary::UserRepo.save(db, {'id' => "1"})
     def self.save(db, user_data)
       if user_data['id']
         # TODO: Update SQL statement
+        db.exec("UPDATE users SET name = $1 WHERE id = $2 returning *", [user_data['name'], user_data['id']]).to_a[0]
       else
         # TODO: Insert SQL statement
+        db.exec("INSERT INTO users (name) VALUES ($1) returning *", [user_data['name']]).to_a[0]
+
       end
     end
 

server.rb

@@ -6,3 +6,51 @@
 get '/' do
   erb :index
 end
+
+get '/users' do
+  db = Library.create_db_connection('library_dev')
+  @users = Library::UserRepo.all(db)
+  erb :"users/index"
+end
+
+post '/users' do
+ db = Library.create_db_connection('library_dev')
+ Library::UserRepo.save(db,params)
+ redirect to('/users')
+end
+
+get '/books' do
+ db = Library.create_db_connection('library_dev')
+ @books = Library::BookRepo.all(db)
+ erb :"books/index"
+end
+
+post '/books' do
+  db = Library.create_db_connection('library_dev')
+  book = Library::BookRepo.save(db, params)
+  redirect to("/books")
+end
+
+get '/books/:id' do
+  db = Library.create_db_connection('library_dev')
+  @book = Library::BookRepo.find(db,params[:id])
+  @bookstat = Library::BookRepo.get_status(db, params[:id])
+  @borrower = nil
+  if @bookstat["status"] == "checked out"
+    @borrower = Library::BookRepo.getborrower(db, params[:id])
+  end
+  @users = Library::UserRepo.all(db)
+  erb :"books/show"
+end
+
+post '/books/:id/checkout' do
+  db = Library.create_db_connection('library_dev')
+  Library::BookRepo.checkout(db,params["userid"], params["id"])
+  redirect to("/books/"+params[:id])
+end
+
+post '/books/:id/return' do
+  db = Library.create_db_connection('library_dev')
+  Library::BookRepo.return(db, params[:id])
+  redirect to("/books/"+params[:id])
+end

spec/repos/user_repo_spec.rb

@@ -38,12 +38,13 @@ def user_count(db)
     expect(user['name']).to eq "Alice"
   end
 
-  xit "finds users" do
+  it "finds users" do
     user = Library::UserRepo.save(db, { 'name' => "Alice" })
     retrieved_user = Library::UserRepo.find(db, user['id'])
     expect(retrieved_user['name']).to eq "Alice"
   end
 
+
   xit "updates users" do
     user1 = Library::UserRepo.save(db, { 'name' => "Alice" })
     user2 = Library::UserRepo.save(db, { 'id' => user1['id'], 'name' => "Alicia" })

views/books/index.erb

@@ -0,0 +1,30 @@
+<html>
+<head>
+<title></title>
+<style media="screen" type="text/css">
+
+body {
+	padding: 20px;
+	margin-left: 20px;
+}
+form {
+	width: 30%;
+	margin-top: 50px;
+}
+</style>
+</head>
+<body><h1>All Books</h1>
+<% @books.each{|book| %>
+	<a href=<%="/books/"+book["id"]%>><%=	book["title"] %></a> by <%=	book["author"] %> <br>
+<% }%>
+
+<form method="POST" action="/books"> 
+  <h3>Register New Book</h3>
+  <label>Title:</label>
+  <input type="text" name="title" />
+  <label>Author:</label>
+  <input type="text" name="author" />
+  <button>Register</button>
+</form>
+</body>
+</html>

views/books/show.erb

@@ -0,0 +1,33 @@
+<html>
+<head>
+<title></title>
+<style media="screen" type="text/css">
+
+body {
+	padding: 20px;
+	margin-left: 20px;
+}
+form {
+	width: 30%;
+	margin-top: 50px;
+}
+</style>
+</head>
+<body>
+<h1><%= @book["title"] %> by <%= @book["author"] %></h1>
+<p> Book status:</p>
+ <% if @bookstat["status"] == "available" %>
+ <p>This book is available.</p>
+ <p>Select a user to check out this book to: </p>
+ <form method="post" action= <%="/books/" + @book["id"] + "/checkout"%>><select name ="userid">
+ <% @users.each{ |user| %>
+<option value= <%= user["id"]%>><%=user["name"]%></option>
+ 	<% } %> 
+ 	</select>
+ 	<input type ="submit"></form>
+ <% elsif @bookstat["status"] == "checked out" %>
+ <p>This book has been checked out by <%= @borrower["name"] %>.</p> <form method="post" action=<%="/books/" + @book["id"] + "/return"%>><button>Return</button></form>
+ <% end %>
+ <a href="/">Back to home.</a>
+</body>
+</html>

views/index.erb

@@ -1,3 +1,22 @@
-<h1>The Library Plus System</h1>
+<html>
+<head>
+<style media="screen" type="text/css">
 
+body {
+	padding: 20px;
+	margin-left: 20px;
+}
+form {
+	width: 30%;
+}
+</style>
+</head>
+<h1>The Library+ System</h1>
 <p>Welcome to your freedom!</p>
+<a href="/users">View all users</a> | <a href="/books">View all books</a><br><br>
+<p>Find a book:</p><br>
+<form method="post" action="/books"><input name="title"  type= "text">
+<input type="submit">
+</form>
+</body>
+</html>

views/users/index.erb

@@ -0,0 +1,29 @@
+<html>
+<head>
+<title></title>
+<style media="screen" type="text/css">
+
+body {
+	padding: 20px;
+	margin-left: 20px;
+}
+form {
+	width: 30%;
+	margin-top: 50px;
+}
+</style>
+</head>
+<body><h1>All Users</h1>
+<% @users.each{|user| %>
+	<%=	user["name"] %> <br>
+<% }%>
+
+<form method="POST" action="/users"> 
+  <h3>Register New User</h3>
+  <label>Name:</label>
+  <input type="text" name="name" />
+
+  <button>Register</button>
+</form>
+</body>
+</html>