Learning Pentaho CTools

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', ...