素材管理（#99） (#303)

#99 #99 #99 #99 #99 #99 #99 #99 #99 #99 Co-authored-by: miteruzo <miteruzo@naver.com> Reviewed-on: #303
2026-04-07 07:44:50 +09:00
parent 2adff3966a
commit 7b15cb2c5a
33 changed files with 1742 additions and 192 deletions
@@ -0,0 +1,39 @@
+class Material < ApplicationRecord
+  include MyDiscard
+
+  default_scope -> { kept }
+
+  belongs_to :parent, class_name: 'Material', optional: true
+  has_many :children, class_name: 'Material', foreign_key: :parent_id, dependent: :nullify
+
+  belongs_to :tag, optional: true
+  belongs_to :created_by_user, class_name: 'User', optional: true
+  belongs_to :updated_by_user, class_name: 'User', optional: true
+
+  has_one_attached :file, dependent: :purge
+
+  validates :tag_id, presence: true, uniqueness: true
+
+  validate :file_must_be_attached
+  validate :tag_must_be_material_category
+
+  def content_type
+    return nil unless file&.attached?
+
+    file.blob.content_type
+  end
+
+  private
+
+  def file_must_be_attached
+    return if url.present? || file.attached?
+
+    errors.add(:url, 'URL かファイルのどちらかは必須です．')
+  end
+
+  def tag_must_be_material_category
+    return if tag.blank? || tag.character? || tag.material?
+
+    errors.add(:tag, '素材カテゴリのタグを指定してください．')
+  end
+end