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app/models/status_bookmark_collection.rb

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+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: status_bookmark_collections
+#
+#  id         :bigint(8)        not null, primary key
+#  title      :text             default(""), not null
+#  account_id :integer          not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+
+class StatusBookmarkCollection < ApplicationRecord
+
+  PER_ACCOUNT_LIMIT = 100
+
+  belongs_to :account
+  
+end