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Learning Pentaho CTools

You're reading from   Learning Pentaho CTools Acquire finesse with CTools features and build rich and custom analytics solutions using Pentaho

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Product type Paperback
Published in May 2016
Publisher Packt
ISBN-13 9781785283420
Length 388 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Miguel Gaspar Miguel Gaspar
Author Profile Icon Miguel Gaspar
Miguel Gaspar
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Toc

Table of Contents (12) Chapters Close

Preface 1. Getting Started with CTools FREE CHAPTER 2. Acquiring Data with CDA 3. Building the Dashboard Using CDF 4. Leverage the Process with CDE 5. Applying Filters to the Dashboard 6. Tables, Templates, Exports, and Text Components 7. Advanced Concepts Using CDF and CDE 8. Visualizations Using CCC 9. Pentaho App Builder 10. Embed, Deploy, and Debug Index

Creating and using parameters in data sources


You can see a parameter as a variable which is storing some value. In the last example, we created a parameter, and now we want to make use of it so we can send it to the query and have queries that can give back different results, depending on the input. To achieve this, we need to have a parameter inside the query in a way that we can later pass some value through the parameter. You already saw how to create parameters in the queries and how to set default values. Now we want to send a value to the query that can change depending on the user interaction, so the user can get the intended results, and have a proper visualization with the correct information in it:

require(['cdf/Dashboard.Bootstrap', 'cdf/components/TableComponent'], 
   function(Dashboard, TableComponent) {
      dashboard = new Dashboard();
      dashboard.addParameter('marketDashParam','[Markets].[All Markets]');
      var path = dashboard.context.path;
      var dashPath =...
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