Searches can return IIIF Collection manifests

Author: cjcolvar

Gemfile

@@ -58,7 +58,8 @@ gem 'avalon-about', git: 'https://github.com/avalonmediasystem/avalon-about.git'
 #gem 'bootstrap-sass', '< 3.4.1' # Pin to less than 3.4.1 due to change in behavior with popovers
 gem 'bootstrap-toggle-rails'
 gem 'bootstrap_form'
-gem 'iiif_manifest', '~> 1.6'
+gem 'iiif_manifest', git: 'https://github.com/samvera/iiif_manifest.git', branch: 'v3_collections'
+#gem 'iiif_manifest', '~> 1.6'
 gem 'rack-cors', require: 'rack/cors'
 gem 'rails_same_site_cookie'
 gem 'recaptcha', require: 'recaptcha/rails'

Gemfile.lock

@@ -77,6 +77,14 @@ GIT
       rsolr (>= 1.1.2, < 3)
       ruby-progressbar (~> 1.0)
 
+GIT
+  remote: https://github.com/samvera/iiif_manifest.git
+  revision: a3c1c504e9ac36eedb23f39e908ab86593e670a4
+  branch: v3_collections
+  specs:
+    iiif_manifest (1.6.0)
+      activesupport (>= 4)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -462,8 +470,6 @@ GEM
     i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     iconv (1.0.8)
-    iiif_manifest (1.6.0)
-      activesupport (>= 4)
     ims-lti (1.1.13)
       builder
       oauth (>= 0.4.5, < 0.6)
@@ -1044,7 +1050,7 @@ DEPENDENCIES
   httpx
   hydra-head (~> 13.0)
   iconv (~> 1.0.6)
-  iiif_manifest (~> 1.6)
+  iiif_manifest!
   ims-lti (~> 1.1.13)
   jbuilder (~> 2.0)
   jquery-datatables

app/controllers/catalog_controller.rb

@@ -222,6 +222,18 @@ class CatalogController < ApplicationController
     config.bootstrap_version = 4
   end
 
+  def manifest
+    @response = search_service.search_results
+
+    presenter = IiifCollectionManifestPresenter.new(items: @response.documents.map { |doc| SpeedyAF::Base.for(doc) }, params: params)
+    manifest = IIIFManifest::V3::ManifestFactory.new(presenter).to_h
+
+    respond_to do |wants|
+      wants.json { render json: manifest.to_json }
+      wants.html { render json: manifest.to_json }
+    end
+  end
+
   private
 
     def load_home_page_collections

app/models/iiif_collection_manifest_presenter.rb

@@ -0,0 +1,70 @@
+# Copyright 2011-2024, The Trustees of Indiana University and Northwestern
+#   University.  Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+# 
+# You may obtain a copy of the License at
+# 
+# http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software distributed
+#   under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+#   CONDITIONS OF ANY KIND, either express or implied. See the License for the
+#   specific language governing permissions and limitations under the License.
+# ---  END LICENSE_HEADER BLOCK  ---
+
+class IiifCollectionManifestPresenter
+  attr_reader :items, :params
+
+  def initialize(items:, params:)
+    @items = items.map { |item| IiifManifestPresenter.new(media_object: item, master_files: nil, lending_enabled: lending_enabled?(item)) }
+    @params = params
+  end
+
+  def file_set_presenters
+    []
+  end
+
+  def work_presenters
+    items
+  end
+
+  def manifest_url
+    Rails.application.routes.url_helpers.manifest_catalog_url(nil, *params.except(:action, :controller).permit!)
+  end
+
+  def to_s
+    'Catalog Search'
+  end
+
+  def collection?
+    true
+  end
+
+  def homepage
+    [
+      {
+        id: Rails.application.routes.url_helpers.search_catalog_url(nil, *params.except(:action, :controller).permit!),
+        type: "Text",
+        label: { "none" => [I18n.t('iiif.manifest.homepageLabel')] },
+        format: "text/html"
+      }
+    ]
+  end
+
+  def manifest_metadata
+    @manifest_metadata ||= iiif_metadata_fields.compact
+  end
+
+  private
+
+    def iiif_metadata_fields
+      [
+        "Title" => to_s
+      ]
+    end
+
+    def lending_enabled?(context)
+      return context&.cdl_enabled? if Avalon::Configuration.controlled_digital_lending_enabled?
+      false
+    end
+end

app/presenters/speedy_af/proxy/media_object.rb

@@ -25,7 +25,7 @@ def initialize(solr_document, instance_defaults = {})
     instance_defaults ||= {}
     @model = SpeedyAF::Base.model_for(solr_document)
     @attrs = self.class.defaults.merge(instance_defaults)
-    solr_document.each_pair do |k, v|
+    solr_document.to_h.each_pair do |k, v|
       attr_name, value = parse_solr_field(k, v)
       @attrs[attr_name.to_sym] = value
     end

config/routes.rb

@@ -8,6 +8,8 @@
 
   resource :catalog, only: [], as: 'catalog', path: '/catalog', controller: 'catalog' do
     concerns :searchable
+
+    get :manifest
   end
 
   # For some reason this needs to be after `resource :catalog` otherwise Blacklight will generate links to / instead of /catalog