educoder/app/models/issue.rb

class Issue < ApplicationRecord
  belongs_to :project
  belongs_to :tracker
  belongs_to :issue_tag, foreign_key: :priority_id
  belongs_to :version, foreign_key: :fixed_version_id,optional: true
  belongs_to :user,optional: true, foreign_key: :author_id
  belongs_to :issue_status, foreign_key: :status_id,optional: true
  has_many :commit_issues
  has_many :attachments, as: :container, dependent: :destroy
  has_many :memos
  has_many :journals
  has_many :journal_details, through: :journals

  scope :issue_includes, ->{includes(:user)}


  def get_assign_user
    User.select(:login, :lastname,:firstname, :nickname)&.find_by_id(self.assigned_to_id)
  end

  def create_journal_detail(change_files, issue_files, issue_file_ids)
    journal = Journal.where(journalized_id: self.id, journalized_type: "Issue", user_id: self.author_id, notes: [nil,""])
    if journal.present?
      journal.update_all(created_on: Time.now)
      journal = journal.last
    else
      journal_params = {
        journalized_id: self.id, journalized_type: "Issue", user_id: self.author_id
      }
      journal = Journal.new journal_params
      journal.save
    end
    if change_files
      journal.journal_details.create(property: "attachment", prop_key: "#{issue_files.size}", old_value: issue_file_ids, value: issue_files)
    end

    change_values = %w(subject description is_private assigned_to_id tracker_id status_id priority_id fixed_version_id start_date due_date estimated_hours done_ratio)
    change_values.each do |at|
      if self.send("saved_change_to_#{at}?")
        journal.journal_details.create(property: "attr", prop_key: "#{at}", old_value: self.send("#{at}_before_last_save"), value: self.send(at))
      end
    end
  end

end