exhibit.rb in blacklight-spotlight-1.0.0.alpha1

- old
+ new

@@ -43,12 +43,12 @@
     has_many :filters, dependent: :delete_all
 
     has_one :blacklight_configuration, class_name: 'Spotlight::BlacklightConfiguration', dependent: :delete
     has_one :home_page
 
-    belongs_to :site
-    belongs_to :masthead, dependent: :destroy
-    belongs_to :thumbnail, class_name: 'Spotlight::ExhibitThumbnail', dependent: :destroy
+    belongs_to :site, optional: true
+    belongs_to :masthead, dependent: :destroy, optional: true
+    belongs_to :thumbnail, class_name: 'Spotlight::ExhibitThumbnail', dependent: :destroy, optional: true
 
     accepts_nested_attributes_for :about_pages, :attachments, :contacts, :custom_fields, :feature_pages,
                                   :main_navigations, :owned_taggings, :resources, :searches, :solr_document_sidecars
     accepts_nested_attributes_for :blacklight_configuration, :home_page, :filters, update_only: true
     accepts_nested_attributes_for :masthead, :thumbnail, update_only: true, reject_if: proc { |attr| attr['iiif_tilesource'].blank? }