Class: Admin::HistoryController

Inherits:
BaseController
  • Object
show all
Defined in:
lib/generators/open_loam/install/templates/admin/history_controller.rb

Overview

A record's change history (OpenLoam::AuditRecord) with one-click Undo (L-704). Undo applies the inverse of a change and records ITSELF as an audit, so undoing an "undo" entry is redo — no separate redo action. Reading needs read on the record; undoing needs update (the same gate as editing it).

Constant Summary

Constants included from Pagination

Pagination::PER_PAGE

Instance Method Summary collapse

Methods inherited from BaseController

skip_authorization!

Methods included from Pagination

#paginate

Instance Method Details

#index ⇒ Object 



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# File 'lib/generators/open_loam/install/templates/admin/history_controller.rb', line 11

def index
  authorize!(policy_for(@record), :read?)
  @audits = OpenLoam::AuditRecord
            .where(auditable_type: @record.class.name, auditable_id: @record.id)
            .order(id: :desc).limit(100)
end

#undo ⇒ Object 



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# File 'lib/generators/open_loam/install/templates/admin/history_controller.rb', line 18

def undo
  authorize!(policy_for(@record), :update?)
  audit = OpenLoam::AuditRecord.find(params[:id])
  OpenLoam::Undo.undo(audit, policy: policy_for(@record))
  redirect_to admin_history_path(type: @record.class.name, record_id: @record.id), notice: "Change undone."
rescue OpenLoam::Undo::NotUndoableError => error
  redirect_to admin_history_path(type: @record.class.name, record_id: @record.id), alert: error.message
end