darrachequesne / spring-data-jpa-datatables

Spring Data JPA extension to work with the great jQuery plugin DataTables (https://datatables.net/)
Apache License 2.0
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Add null filter #44

Closed ssando closed 7 years ago

ssando commented 7 years ago

This change adds the ability to search for null values from a dataTables search string.

For example, say there are 3 possible values for a column: Sent, Received, Unknown, yet it is a nullable column. To find Sent and Unknown rows the filter is Sent+Unknown. However, NULL could be interpreted as Unknown too.

With this modification you can specify Sent+Unknown+NULL to see rows with null values. In order to look for the text NULL, escape the value as \NULL.

Changes:

Added a constants for NULL and escaped NULL. Added code to look for NULL in the list of values and remove it Added code to look for NULL in a list of boolean tests Added code to add “column IS NULL” when necessary Added code to look for NULL as a single value and handle appropriately Added unit tests to cover all the paths and options

darrachequesne commented 7 years ago

Thanks a lot!