If you have a need for data that can only be retrieved via a query because the reporter can't construct it, or if you base numerous reports on a specific set of data that you don't want to have to rebuild every time you create a template, you can create a new class in the fieldmapper that can be used by the reporter going forward.

First, you will need to construct a SQL query that retrieves the data you wish to make available in your source. Once you are satisfied, then you have two options:

This option adds the SQL directly to the Fieldmapper. This is the easiest approach to code and the reporter (and most other parts of Evergreen) will be able to make use of it, but it does have limitations. For example, it will not be available to a direct database query. Also, other fieldmapper classes cannot link to this class as they would be able to with option 2.

Example Code: https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/mccanna/newdevs-sample-create-view-via-fieldmapper

• See the Fieldmapper page for more information about creating the new class