Book Image

Learning Pentaho CTools

By : Miguel Gaspar
Book Image

Learning Pentaho CTools

By: Miguel Gaspar

Overview of this book

Pentaho and CTools are two of the fastest and most rapidly growing tools for practical solutions not found in any other tool available on the market. Using Pentaho allows you to build a complete analytics solution, and CTools brings an advanced flexibility to customizing them in a remarkable way. CTools provides its users with the ability to utilize Web technologies and data visualization concepts, and make the most of best practices to create a huge visual impact. The book starts with the basics of the framework and how to get data to your dashboards. We'll take you all the way through to create your custom and advanced dashboards that will create an effective visual impact and provide the best user experience. You will be given deep insights into the lifecycle of dashboards and the working of various components. Further, you will create a custom dashboard using the Community Dashboards Editor and use datasources to load data on the components. You will also create custom content using Query, the Freeform Addins Popup, and text components. Next, you will make use of widgets to create similar sections and duplicate components to reproduce other components on a dashboard. You will then learn to build a plugin without writing Java code, use Sparkl as a CPK plugin manager, and understand the application of deployment and version control to dashboard development. Finally, you will learn tips and tricks that can be very useful while embedding dashboards into other applications. This guide is an invaluable tutorial if you are planning to use custom and advanced dashboards among the solutions that you are building with Pentaho.
Table of Contents (17 chapters)
Learning Pentaho CTools
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Parameter, parameters, and listeners, again


When talking about building an interactive dashboard, you need to remember that parameters are crucial. To have a component using the same query but showing different results, we need to use parameters. When defining the data source, we need to say which parameters will be used and build the query with them inside. Also, we need to have the dashboard parameters where the values we want to use when executing the query are.

When setting the component, we need to specify the data source and the parameters properties, among others, but for now let's focus on these two. In the component, the parameters property is where you specify the mapping of the parameters that you have created in the dashboard, using the components perspective, and the name of the parameters in the data source. This way, the component can get different results, depending on the value of the parameters we have in our dashboard.

Listeners are also crucial. The dashboard parameters...