March 2019
Intermediate to advanced
580 pages
15h 3m
English
Content preview from Drupal 8 Module Development - Second Edition
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Tagged services
Service definitions can also be tagged in order to inform the container if they serve a specific purpose. Typically, these are picked up by a collector service that uses them for a given subsystem. As an example, if we wanted to tag the hello_world.salutation service, it would look something this:
hello_world.salutation: class: Drupal\hello_world\HelloWorldSalutation tags: - {name: tag_name}
Tags can also get a priority, as we will see in some examples later in this book.
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