Extend BooleanColumn to allow rendering a placeholder for false values

[jeremystretch]

NetBox version

v4.0.7

Feature type

New functionality

Proposed functionality

Currently, NetBox's custom BooleanColumn will render a checkmark for true values, an X for false values, and a placeholder for null values.

This FR proposes new keyword arguments which enable overriding the default HTML content for true and false values. Setting either of these to None will render an empty placeholder, as with null values.

foo = columns.BooleanColumn(
    true_content='Yup',
    false_content=None
)

Use case

Sometimes a negative condition is not inherently problematic, and is not appropriate to flag as "wrong" using a red X. For example, consider the "management only" field on the interface model. We care to indicate when an interface has been so designated, but otherwise this attribute needs no further attention. (Contrast this to the "enabled" field, wherein a false value is likely more worthy of consideration.)

Database changes

None

External dependencies

None