Our Kanban card is using the t-attf QWeb directive to dynamically set a class on the top <div> element so that the card is colored depending on the color field value. For this, the t-attf- QWeb directive was used.
The t-attf- directive dynamically generates tag attributes using string substitution. This allows for parts of larger strings generated dynamically, such as a URL address or CSS class names.
The directive looks for expression blocks that will be evaluated and replaced by the result. These are delimited either by {{ and }} or by #{ and }. The content of the blocks can be any valid JavaScript expression and can use any of the variables available for QWeb expressions, such as record ...
