From 219559222c4d681b75518eb849c8d657da3041ec Mon Sep 17 00:00:00 2001
From: Andrew Retmanski <aretmanski@gmail.com>
Date: Mon, 1 Jun 2020 16:15:03 +0100
Subject: [PATCH] Add support for specifying custom `:meta` options. Currently
 the pagination implementation completely overwrites the response `:meta`
 options - I have a use case that requires adding additional options to the
 meta section but the gem doesn't support that. This change allows something
 like the following to work as expected:

```
paginate my_collection, meta: { foo: 'bar' }
```

And will include the specified custom metadata in addition to the pagination metadata.
---
 lib/pager_api/pagination/kaminari.rb      | 4 ++--
 lib/pager_api/pagination/pagy.rb          | 4 ++--
 lib/pager_api/pagination/will_paginate.rb | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/pager_api/pagination/kaminari.rb b/lib/pager_api/pagination/kaminari.rb
index c32259e..c1b9639 100644
--- a/lib/pager_api/pagination/kaminari.rb
+++ b/lib/pager_api/pagination/kaminari.rb
@@ -70,7 +70,7 @@ def paginate_collection(collection, options = {})
         end
 
         def meta(collection, options = {})
-          {
+          options.fetch(:meta, {}).merge(
             pagination:
             {
               per_page: options[:per_page].to_i || params[:per_page].to_i || ::Kaminari.config.default_per_page,
@@ -78,7 +78,7 @@ def meta(collection, options = {})
               total_objects: collection.total_count,
               links: pagination_links(collection)
             }
-          }
+          )
         end
 
     end
diff --git a/lib/pager_api/pagination/pagy.rb b/lib/pager_api/pagination/pagy.rb
index 45b81f4..ec61ceb 100644
--- a/lib/pager_api/pagination/pagy.rb
+++ b/lib/pager_api/pagination/pagy.rb
@@ -73,14 +73,14 @@ def paginate_collection(collection, options = {})
       end
 
       def meta(pagy, options = {})
-        {
+        options.fetch(:meta, {}).merge(
           pagination: {
             per_page: pagy.items,
             total_pages: pagy.pages,
             total_objects: pagy.count,
             links: pagination_links(pagy),
           },
-        }
+        )
       end
     end
   end
diff --git a/lib/pager_api/pagination/will_paginate.rb b/lib/pager_api/pagination/will_paginate.rb
index a4e7c5d..eba0f63 100644
--- a/lib/pager_api/pagination/will_paginate.rb
+++ b/lib/pager_api/pagination/will_paginate.rb
@@ -71,7 +71,7 @@ def paginate_collection(collection, options = {})
         end
 
         def meta(collection, options = {})
-          {
+          options.fetch(:meta, {}).merge(
             pagination:
             {
               per_page: options[:per_page] || params[:per_page] || ::WillPaginate.per_page,
@@ -79,7 +79,7 @@ def meta(collection, options = {})
               total_objects: collection.total_entries,
               links: pagination_links(collection)
             }
-          }
+          )
         end
     end
   end