It is more convenient that we use Enums in our domain classes rather than String, when we are really sure that Enum is the best representation of a property. Maintaining Strings and constants is just a pain. But it is common problem on how to create a form that accepts Enum values. Below is an example on how to use Select Tag inGrails to choose from Enum values.
We could use Grails criteria projections when we want to select which properties or column to include in the query result. This post will show examples on how to use projections when working with Grails criteria to search for records in the database.
This post will show how to use delete records on a database table using HQL. Using Grails HQL delete is important on some cases because it is a very efficient solution. Bulk delete can be finished in one go using just one JDBC call.