Add citations API

app/controllers/api/jurisprudence/cited_ins_controller.rb

@@ -0,0 +1,32 @@
+module Api
+  module Jurisprudence
+    class CitedInsController < ::Api::BaseController
+      load_resource :document, class: "Cdao::Jurisprudence", id_param: :jurisprudence_id
+
+      def index
+        authorize! :read, @document
+
+        response = { data: [] }
+
+        document = @document
+        where = { enabled: true, state: "published" }
+
+        document.class.citing_docs_of(document, where).group_by { |a| a.class.name }.each do |klass, docs|
+          klass = klass.gsub("Cdao::", "")
+          library = Cdao::Library.find_by(document_type: klass)
+
+          response[:data] << {
+            library: {
+              document_type: klass,
+              display_name: library.try(:display_name).presence || "",
+              name: library.try(:name).presence || "",
+            },
+            documents: docs.map { |doc| doc.to_builder(current_ability).attributes! }
+          }
+        end
+
+        render json: response
+      end
+    end
+  end
+end

app/controllers/api/jurisprudence/cross_references_controller.rb

@@ -0,0 +1,33 @@
+module Api
+  module Jurisprudence
+    class CrossReferencesController < ::Api::BaseController
+      load_resource :document, class: "Cdao::Jurisprudence", id_param: :jurisprudence_id
+
+      def index
+        authorize! :read, @document
+
+        response = { data: [] }
+
+        document = @document
+        where = { enabled: true, state: "published" }
+
+        document.class.cited_docs_of(document, where).group_by { |a| a.class.name }.each do |klass, docs|
+          klass = klass.gsub("Cdao::", "")
+          library = Cdao::Library.find_by(document_type: klass)
+
+          response[:data] << {
+            library: {
+              document_type: klass,
+              display_name: library.try(:display_name).presence || "",
+              name: library.try(:name).presence || "",
+            },
+            data_id_prefix: "#{klass}-",
+            documents: docs.map { |doc| doc.to_builder(current_ability).attributes! }
+          }
+        end
+
+        render json: response
+      end
+    end
+  end
+end

app/models/cdao/jurisprudence.rb

@@ -46,6 +46,21 @@ class Cdao::Jurisprudence < Cdao::Base
     end
     cited_docs
   end
+
+  def clean_reference_number
+    (reference_number.presence || "").gsub(/<!--\d+-->/, "")
+  end
+
+  def to_builder(ability = nil)
+    Jbuilder.new do |doc|
+       doc.(self, *%i[id title short_title])
+       doc.docdate docdate.presence || "0000-00-00"
+       doc.year year.presence || 0
+       doc.reference_number clean_reference_number
+       doc.display_reference_number clean_reference_number.presence || short_title.presence || title
+       doc.url Rails.application.routes.url_helpers.document_path(self)
+    end
+  end
   
   def subjects
     doctrines.map(&:subjects).flatten.uniq

config/routes.rb

@@ -26,6 +26,11 @@ Rails.application.routes.draw do
   resources :subject_indexes
 
   namespace :api, defaults: { format: :json } do
-    resources :jurisprudences, only: %i[index show]
+    resources :jurisprudences, only: %i[index show] do
+      scope module: :jurisprudence do
+        resources :cited_ins, only: %i[index show]
+        resources :cross_references, only: %i[index show]
+      end
+    end
   end
 end