From 9174152d1060782e9ba5767b2d346ce9852cbda2 Mon Sep 17 00:00:00 2001
From: Pieter Frenssen <pieter@frenssen.be>
Date: Mon, 7 Mar 2022 15:59:13 +0200
Subject: [PATCH] Expose ::isBaseField().

Fixes #242.
---
 src/Drupal/Driver/BaseDriver.php          |  7 +++++++
 src/Drupal/Driver/Cores/CoreInterface.php | 13 +++++++++++++
 src/Drupal/Driver/Cores/Drupal6.php       |  8 ++++++++
 src/Drupal/Driver/Cores/Drupal7.php       |  8 ++++++++
 src/Drupal/Driver/DriverInterface.php     | 13 +++++++++++++
 src/Drupal/Driver/DrupalDriver.php        |  7 +++++++
 6 files changed, 56 insertions(+)

diff --git a/src/Drupal/Driver/BaseDriver.php b/src/Drupal/Driver/BaseDriver.php
index f5e1622b..41ba9a69 100644
--- a/src/Drupal/Driver/BaseDriver.php
+++ b/src/Drupal/Driver/BaseDriver.php
@@ -133,6 +133,13 @@ public function isField($entity_type, $field_name) {
     return FALSE;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function isBaseField($entity_type, $field_name) {
+    return FALSE;
+  }
+
   /**
    * {@inheritdoc}
    */
diff --git a/src/Drupal/Driver/Cores/CoreInterface.php b/src/Drupal/Driver/Cores/CoreInterface.php
index 89c2a086..03f728d5 100644
--- a/src/Drupal/Driver/Cores/CoreInterface.php
+++ b/src/Drupal/Driver/Cores/CoreInterface.php
@@ -159,6 +159,19 @@ public function getFieldHandler($entity, $entity_type, $field_name);
    */
   public function isField($entity_type, $field_name);
 
+  /**
+   * Checks if the specified field is a Drupal base field.
+   *
+   * @param string $entity_type
+   *   The entity type to check.
+   * @param string $field_name
+   *   The field name to check.
+   *
+   * @return bool
+   *   TRUE if the given field is a base field, FALSE otherwise.
+   */
+  public function isBaseField($entity_type, $field_name);
+
   /**
    * Returns array of field types for the specified entity.
    *
diff --git a/src/Drupal/Driver/Cores/Drupal6.php b/src/Drupal/Driver/Cores/Drupal6.php
index 85bbe23c..f8573950 100644
--- a/src/Drupal/Driver/Cores/Drupal6.php
+++ b/src/Drupal/Driver/Cores/Drupal6.php
@@ -471,6 +471,14 @@ public function isField($entity_type, $field_name) {
     return isset($map[$field_name]);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function isBaseField($entity_type, $field_name) {
+    // Base fields are only supported in Drupal 8 and higher.
+    return FALSE;
+  }
+
   /**
    * {@inheritdoc}
    */
diff --git a/src/Drupal/Driver/Cores/Drupal7.php b/src/Drupal/Driver/Cores/Drupal7.php
index 7c8d1332..d9c51f6f 100644
--- a/src/Drupal/Driver/Cores/Drupal7.php
+++ b/src/Drupal/Driver/Cores/Drupal7.php
@@ -477,6 +477,14 @@ public function isField($entity_type, $field_name) {
     return !empty($map[$field_name]) && array_key_exists($entity_type, $map[$field_name]['bundles']);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function isBaseField($entity_type, $field_name) {
+    // Base fields are only supported in Drupal 8 and higher.
+    return FALSE;
+  }
+
   /**
    * {@inheritdoc}
    */
diff --git a/src/Drupal/Driver/DriverInterface.php b/src/Drupal/Driver/DriverInterface.php
index ed39f329..5519533e 100644
--- a/src/Drupal/Driver/DriverInterface.php
+++ b/src/Drupal/Driver/DriverInterface.php
@@ -153,6 +153,19 @@ public function roleDelete($rid);
    */
   public function isField($entity_type, $field_name);
 
+  /**
+   * Checks if the specified field is a Drupal base field.
+   *
+   * @param string $entity_type
+   *   The entity type to check.
+   * @param string $field_name
+   *   The field name to check.
+   *
+   * @return bool
+   *   TRUE if the given field is a base field, FALSE otherwise.
+   */
+  public function isBaseField($entity_type, $field_name);
+
   /**
    * Returns a configuration item.
    *
diff --git a/src/Drupal/Driver/DrupalDriver.php b/src/Drupal/Driver/DrupalDriver.php
index 39bff9cc..50489710 100644
--- a/src/Drupal/Driver/DrupalDriver.php
+++ b/src/Drupal/Driver/DrupalDriver.php
@@ -285,6 +285,13 @@ public function isField($entity_type, $field_name) {
     return $this->getCore()->isField($entity_type, $field_name);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function isBaseField($entity_type, $field_name) {
+    return $this->getCore()->isBaseField($entity_type, $field_name);
+  }
+
   /**
    * {@inheritdoc}
    */