with a custom module, in drupal 8, how can I test whether I am on a node entity or not, when i browse to that page?
If I do this $node = \Drupal::routeMatch()->getParameter('node'); I get an error if i'm not on a node.
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What is it you are trying to do? By limiting your module to nodes, you eliminate it from being usable on other entity types - which may be ok, but there may be a better way to go about it– JaypanApr 7, 2017 at 13:19
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I need to get a taxonomy term which will only be available to nodes. I already know how to get the taxonomy term if i'm on a node– DianaApr 7, 2017 at 13:20
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2 Answers
Getting the route parameter is not a problem, this returns NULL if the route parameter is not present. But you have to check the node is not NULL, before using it:
if ($node = \Drupal::routeMatch()->getParameter('node')) {
$value = $node->field_name->value;
}
You can do:
if(\Drupal::routeMatch()->getRouteName() == 'entity.node.canonical'){
//Do what you want.
}
answered Apr 7, 2017 at 14:20
