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70 lines
1.7 KiB
Ruby
70 lines
1.7 KiB
Ruby
module Trashable
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extend ActiveSupport::Concern
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included do
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default_scope { where(with_deleted_scope_sql) }
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# scope unscoped does not work
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belongs_to :deleted_by, class_name: 'User'
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end
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module ClassMethods
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def with_deleted
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# lifted from acts_as_paranoid, works around https://github.com/rails/rails/issues/4306
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#
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# with this in place Post.limit(10).with_deleted, will work as expected
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#
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scope = if rails_master?
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self.all
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elsif rails4?
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self.all.with_default_scope
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else
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self.scoped.with_default_scope
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end
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scope.where_values.delete(with_deleted_scope_sql)
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scope
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end
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def with_deleted_scope_sql
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if rails4?
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all.table[:deleted_at].eq(nil).to_sql
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else
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scoped.table[:deleted_at].eq(nil).to_sql
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end
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end
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end
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def trashed?
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deleted_at.present?
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end
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def trash!(trashed_by=nil)
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# note, an argument could be made that the column should probably called trashed_at
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# however, deleted_at is the terminology used in the UI
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#
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# we could hijack use a delete! and delete - redirecting the originals elsewhere, but that is
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# confusing as well. So for now, we go with trash!
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#
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trash_update(DateTime.now, trashed_by.try(:id))
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end
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def recover!
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trash_update(nil, nil)
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end
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private
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def trash_update(deleted_at, deleted_by_id)
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# see: https://github.com/rails/rails/issues/8436
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#
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# Fixed in Rails 4
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#
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self.class.unscoped.where(id: self.id).update_all(deleted_at: deleted_at, deleted_by_id: deleted_by_id)
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raw_write_attribute :deleted_at, deleted_at
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raw_write_attribute :deleted_by_id, deleted_by_id
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end
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end
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