Bug 17387: (follow-up) fix embed items on get deleted biblio

Add x-koha-embed parameter to GET /deleted/biblios/{biblio_id} and use
$c->objects->to_api() to properly handle embedding items.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>

Koha/REST/V1/DeletedBiblios.pm

@@ -59,7 +59,7 @@ sub get {
         if ( $c->req->headers->accept =~ m/application\/json/ ) {
             return $c->render(
                 status => 200,
-                json   => $biblio->to_api
+                json   => $c->objects->to_api($biblio),
             );
         } else {
             my $metadata = $biblio->metadata;

api/v1/swagger/paths/deleted_biblios.yaml

@@ -81,6 +81,16 @@
     summary: Get deleted biblio
     parameters:
       - $ref: "../swagger.yaml#/parameters/biblio_id_pp"
+      - name: x-koha-embed
+        in: header
+        required: false
+        description: Embed list sent as a request header
+        type: array
+        items:
+          type: string
+          enum:
+            - items
+        collectionFormat: csv
     produces:
       - application/json
       - application/marcxml+xml

koha-tmpl/intranet-tmpl/prog/en/modules/tools/restore-records.tt

@@ -576,6 +576,7 @@
                     url: "/api/v1/deleted/biblios/" + biblio_id,
                     type: "GET",
                     headers: {
+                        "Accept": "application/json",
                         "x-koha-embed": "items",
                     },
                     success: function (biblio) {