From 6cab0a02bd903bdbfd107011f01a2136d6fa185c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?benjamin=20melan=C3=A7on?= <ben@agaric.com>
Date: Sat, 28 Sep 2019 18:32:05 -0400
Subject: [PATCH] Caught between saving data and doing this on view, leaning
 toward on view

---
 .../custom/geo_citation/geo_citation.module   | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/web/modules/custom/geo_citation/geo_citation.module b/web/modules/custom/geo_citation/geo_citation.module
index 50cce95..cda6778 100644
--- a/web/modules/custom/geo_citation/geo_citation.module
+++ b/web/modules/custom/geo_citation/geo_citation.module
@@ -1,3 +1,33 @@
 <?php
 
+/**
+ * Implements hook_ENTITY_TYPE_update() for Drutopia article content.
+ */
+function geo_citation_article_update(Drupal\Core\Entity\EntityInterface $entity)
+{
+  $article_type = $entity->field_article_type->getValue();
+  // If it's not a GEO Original article, there's nothing for us to do.
+  if (!$article_type == 6) {
+    return;
+  }
+}
 
+/**
+ * Implements hook_entity_extra_field_info().
+ */
+function geo_citation_entity_extra_field_info() {
+  $extra = [];
+  $extra['node']['article']['display']['geo_citation'] = [
+    'label' => t('GEO Citation'),
+    'description' => t('Re-presents title, author, date and other information in a standard citeable format.'),
+    'weight' => 90,
+  ];
+  return $extra;
+}
+
+/**
+ * Implements hook_ENTITY_TYPE_view() for Drutopia articles.
+ */
+function geo_citation_article_view(array &$build, \Drupal\Core\Entity\EntityInterface $entity, \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display, $view_mode) {
+
+}