Introduction to Grails Training Course

Course Summary

The Introduction to Grails training course is designed to demonstrate how to rapidly build web applications using the Grails framework.

The course begins with an exploration of the core components of a Grails application, including connecting to databases and working with models, views, and controllers. It then covers how a Grails application interacts with a database, including the embedded pure-Java Hyper Structured Query Language Database (HSQLDB), an external database such as MySQL, and mapping domain classes to legacy/existing database tables. Finally, it concludes with sections on database development with GoLang Object-Relational Mapping (GORM) and working with Groovy services.

Purpose

Learn how to rapidly build web applications using the Grails framework.

Audience

Existing Java and Groovy developers looking to adopt Grails.

Role

Software Developer - Web Developer

Skill Level

Intermediate

Style

Hack-a-thon - Learning Spikes - Workshops

Duration

3 Days

Related Technologies

Download

Productivity Objectives:

Install Grails and identify the core Grails feature
Build a functioning Hello World app with Groovy and Grails
Connect to a database using GORM
Integrate AJAX into a basic Groovy and Grails application

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Real-World Content

Project-focused demos and labs using your tool stack and environment, not some canned "training room" lab.
Expert Practitioners

Industry experts with 15+ years of industry experience that bring their battle scars into the classroom.
Experiential Learning

More coding than lecture, coupled with architectural and design discussions.
Fully Customized

One-size-fits-all doesn't apply to training teams. That's where we come in!

What You'll Learn

In the Introduction to Grails training course, you'll learn:

Introduction to Grails (Part II of course)
- What is Grails?
- How does Groovy fit with Grails
- Review of Model-View-Controller paradigm
- Key Grails concepts
  - Scaffolding
  - Convention over configuration
  - Closures
  - Metaprogramming
- Install Grails
Creating your first Grails App
- Generate a basic “hello world” app
- Examine of what was creating
- Understand the directory structure and dependencies
Database Development with Grails
- Connect to an external database
- Review of Groovy database development concepts
Grails Models
- Review of model
- Create Groovy classes as models
Grails Controllers
- Review of the Controller
- Generate controllers
- Create a dynamic scaffolding
- Examine request/response processing
Groovy Views
- Review of the View
- Create a Groovy Server Page (GSP)
- Work with GSP tags
- Create and modify templates
Database Development with GORM
- Understand GORM – Grails Object/Relational Mapper
- Use GORM for CRUD (Create-Read-Update-Delete)
- Work with Dynamic Finders, Hibernate Query Language, and Find by Example
Understanding Groovy Services
- Review of the command pattern
- Understand where services fit within a Grails application
- Implement a command pattern as a Service
Ajax and Groovy
- Overview of Ajax and its capabilities
- Integrate Ajax with Groovy using GSPs and Prototype.js
- Work with HTML, XML, and JSON results