PostgreSQL full text search [WIP]

app/models/search.rb

@@ -0,0 +1,39 @@
+# See:
+# - https://robots.thoughtbot.com/implementing-multi-table-full-text-search-with-postgres
+# - http://calebthompson.io/talks/search.html
+class Search < ActiveRecord::Base
+  extend Textacular
+
+  attr_accessor :gestionnaire
+  attr_accessor :query
+
+  belongs_to :dossier
+
+  def results
+    if @query.present?
+      self.class
+        .select("DISTINCT(dossiers.*)")
+        .search(@query)
+        .joins(:dossier)
+        .where(dossier_id: @gestionnaire.dossier_ids)
+        .where("dossiers.archived = ? AND dossiers.state != ?", false, "draft")
+        .map(&:dossier)
+    else
+      Search.none
+    end
+  end
+
+  def self.searchable_language
+    "french"
+  end
+
+  def self.searchable_columns
+    %i(term)
+  end
+
+  # NOTE: could be executed concurrently
+  # See https://github.com/thoughtbot/scenic#what-about-materialized-views
+  def self.refresh
+    Scenic.database.refresh_materialized_view(table_name, concurrently: false)
+  end
+end