Book Image

Lift Application Development Cookbook

By : Gilberto Tadeu Garcia Jun
Book Image

Lift Application Development Cookbook

By: Gilberto Tadeu Garcia Jun

Overview of this book

Developing secure web applications is one of the most important tasks developers have to deal with. With Lift, it is easy to create solid and formidable web applications as it is the most secure web framework available today. The View-First approach and being able to handle things as purely data transformation, makes working with Lift an exciting task. "Lift Application Development Cookbook" teaches you how to build web applications using this amazing framework. The book moves gradually, starting with the basics (starting a new project, submitting a form, and so on) before covering more advanced topics such as building a REST API and integrating your application with other technologies and applications. "Lift Application Development Cookbook" takes you on a journey of creating secure web applications. Step-by-step instructions help you understand how things work and how various elements relate to each other. You'll learn different ways to process a form, build dynamic HTML pages, and create an API using REST. You'll also learn how to work with relational and NoSQL databases and how to integrate your application with other technologies as well as with third-part applications such as Gmail and Facebook. By the end of the book, you will be able to understand how Lift works and be able to build web applications using this amazing and exciting framework.

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Lift Application Development Cookbook
Gilberto Tadeu Garcia Jun
Sep, 2013 | 254 pages
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Table of Contents (15 chapters)
Lift Application Development Cookbook
Lift Application Development Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Lift Basics
Getting Started with Lift Basics
Introduction
Creating a Lift application using SBT
Creating a Lift application using Maven
Defining a SiteMap
Logging using logback
Sending e-mails using Gmail's SMTP server
2
Working with HTML
Working with HTML
Introduction
Transforming HTML elements using their IDs
Creating an HTML list using CSS selectors
Creating an HTML table with dynamically defined columns
Nesting snippets
Dynamic menu rendering
Localizing templates
Testing snippets using Specs2
Creating custom error pages
Sending JavaScript commands from the server
Invoking server-side functions from the client
3
Working with Forms
Working with Forms
Introduction
Creating forms
Validating forms
Creating an Ajax form
Creating multipage forms
Defining a relation between form fields
4
Working with REST
Working with REST
Introduction
Getting data from the server
Creating data using the REST service
Modifying data using the REST service
Deleting data using the REST service
Testing a REST service using Specs2
Uploading a file using the REST service
Creating an RSS feed
5
Working with Databases
Working with Databases
Introduction
Configuring a connection to database
Mapping a table to a Scala class
Creating one-to-many relationships
Creating many-to-many relationships
Creating CRUD features with CRUDify
Paginating result sets
Using an in-memory database in application tests
6
Working with Record
Working with Record
Introduction
Configuring a connection to a database using Squeryl
Mapping a table to a Scala class
Migrating the database using Liquibase
Creating one-to-many relationships
Creating many-to-many relationships
Paginating result sets using Record
Testing your application using an in-memory database
7
Working with MongoDB
Working with MongoDB
Introduction
Connecting to MongoDB using record
Mapping a MongoDB collection to a Scala class
Mapping embedded objects
Mapping referenced objects
Querying with Rogue
8
Integrating Lift with Social Media
Integrating Lift with Social Media
Introduction
Signing up using a Facebook account
Fetching a user's Facebook data
Signing up using a Gmail account
Fetching a user's Gmail data
Signing up using a LinkedIn account
Fetching a user's LinkedIn data
Signing up using a Twitter account
Fetching a user's Twitter data
Index
Index

Configuring a connection to database

The first thing we need to learn while working with databases is how to connect the application that we will build with the database itself.

In this recipe, we will show you how to configure Lift to connect with the database of our choice. For this recipe, we will use PostgreSQL; however, other databases can also be used:

Getting ready

  1. Start a new blank project.

  2. Edit the build.sbt file to add the lift-mapper and PostgreSQL driver dependencies:

    "net.liftweb" %% "lift-mapper" % liftVersion % "compile",
"org.postgresql" % "postgresql" % "9.2-1003-jdbc4"  % "compile"

  3. Create a new database.

  4. Create a new user.

How to do it...

Now carry out the following steps to configure a connection with the database:

  1. Add the following lines into the default.props file:

    db.driver=org.postgresql.Driver
db.url=jdbc:postgresql:liftbook
db.user=<place here the user you've created>
db.password=<place here the user password>

  2. Add the following import statement in the Boot.scala...

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