fix: add missing resource meta functionality (#642)

Closes #638

docs/basics/schemas.md

@@ -428,28 +428,21 @@ document, overload the `getIncludedResourceLinks()` method instead.
 
 ## Meta
 
-You can add top-level `meta` to your resource object using the `getPrimaryMeta()` or `getInclusionMeta()` methods
-on your schema. These are called depending on whether your resource is appearing in either the primary `data`
-member of the JSON API document or the `included` member.
+You can add top-level `meta` to your resource object using the `getResourceMeta()` method
+on your schema.
 
-For example, the following would add meta to your resource object regardless of whether it is primary data or
-included in the document:
+For example:
 
 ```php
 class Schema extends SchemaProvider
 {
     // ...
 
-    public function getPrimaryMeta($resource)
+    public function getResourceMeta($resource)
     {
         return ['foo' => 'bar'];
     }
 
-    public function getInclusionMeta($resource)
-    {
-        return $this->getPrimaryMeta($resource);
-    }
-
 }
 ```
 

docs/upgrade.md

@@ -103,6 +103,28 @@ public function getId(object $resource): string
     return (string) $resource->getRouteKey();
 }
 ```
+The functions that are used to call meta data has also been changed. Before there were these 2 functions:
+
+```php
+public function getPrimaryMeta($resource)
+{
+    return ['foo => 'bar'];
+}
+public function getInclusionMeta($resource)
+{
+    return $this->getPrimaryMeta($resource);
+}
+```
+
+These have now been replaced with 1 function:
+
+```php
+  public function getResourceMeta($resource): ?array
+  {
+      return ['foo => 'bar'];
+  }
+```
+This method will be used in place of the other 2. In the rare event that your inclution meta was different from primary, you may need to amalgemate.
 
 ### Errors
 
@@ -116,4 +138,4 @@ your use against the new constructor arguments by inspecting the class directly.
 
 ## 2.x to 3.0
 
-[Use this link to view the 3.0 upgrade guide.](https://github.com/cloudcreativity/laravel-json-api/blob/v3.3.0/docs/upgrade.md)
+[Use this link to view the 3.0 upgrade guide.](https://github.com/cloudcreativity/laravel-json-api/blob/v3.3.0/docs/upgrade.md)

src/Schema/Schema.php

@@ -133,4 +133,24 @@ public function getRelationshipRelatedLink($resource, string $name): LinkInterfa
     {
         return $this->provider->getRelationshipRelatedLink($resource, $name);
     }
-}
+
+    /**
+     * @inheritDoc
+     */
+    public function getResourceMeta($resource): ?array
+    {
+        if($this->hasResourceMeta($resource)){
+            return $this->provider->getResourceMeta($resource);
+        }
+
+        return null;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function hasResourceMeta($resource): bool
+    {
+        return method_exists($this->provider, 'getResourceMeta');
+    }
+}