Tasks display

app/models/task.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Task < ApplicationRecord
   belongs_to :project
 
@@ -5,4 +7,22 @@ class Task < ApplicationRecord
   validates :number, numericality: { greater_than: 0 }
 
   has_rich_text :description
+
+  def to_param
+    return full_number if association(:project).loaded?
+
+    super
+  end
+
+  def full_number
+    "#{project.code.upcase}-#{number}"
+  end
+
+  def self.find_by_full_number_or_id!(number_or_id)
+    return find!(number_or_id) if number_or_id.is_a?(Numeric) || number_or_id =~ /\A\d+\z/
+
+    project_code, number = number_or_id.split('-')
+    project = Project.find_by!(code: project_code.downcase)
+    find_by!(project:, number:)
+  end
 end