added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/backend/app/models/search.rb

@@ -0,0 +1,71 @@
+class Search
+  include ActiveRecord::Sanitization::ClassMethods
+  include ActiveModel::Serialization
+  include ActiveModel::Model
+
+  attr_accessor :resource, :scope, :user, :query
+
+  #
+  # Validations
+  #
+  validates :resource, presence: true, inclusion: {in: %w[treatment symptom condition tag dose food topic]}
+
+  def id
+    Digest::SHA256.base64digest(resource)
+  end
+
+  def searchables
+    # FIXME
+    # rubocop:disable Rails/DynamicFindBy
+    @searchables ||= find_by_query
+    # rubocop:enable Rails/DynamicFindBy
+  end
+
+  MAX_ROWS = 10
+
+  protected
+
+  def query_hash
+    @query_hash ||= Hash(query)
+  end
+
+  def find_by_query
+    if query_hash.present?
+      resources.where(*where_conditions).limit(MAX_ROWS)
+    elsif scope.present?
+      case scope
+      when "random"
+        resources.limit(MAX_ROWS).order("RANDOM()")
+      end
+    else
+      resources.limit(MAX_ROWS)
+    end
+  end
+
+  private
+
+  def where_conditions
+    @where_conditions ||=
+      [].tap do |conditions|
+        query_hash.each do |key, value|
+          sanitized_value = sanitize_sql_like(value.squish.downcase)
+
+          pattern =
+            if sanitized_value.length < 3
+              "#{sanitized_value}%"
+            else
+              "%#{sanitized_value}%"
+            end
+          conditions << ["lower(#{key}) LIKE ?", pattern]
+        end
+      end
+  end
+
+  def resources
+    resource.classify.constantize.accessible_by(current_ability).with_translations(I18n.locale)
+  end
+
+  def current_ability
+    @current_ability ||= Ability.new(user)
+  end
+end