Exception: ActiveRecord::StaleObjectError
Relationships & Source Files | |
Super Chains via Extension / Inclusion / Inheritance | |
Class Chain:
self,
ActiveRecordError ,
StandardError
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Instance Chain:
self,
ActiveRecordError ,
StandardError
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Inherits: |
ActiveRecord::ActiveRecordError
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Defined in: | activerecord/lib/active_record/errors.rb |
Overview
Raised on attempt to save stale record. Record is stale when it’s being saved in another query after instantiation, for example, when two users edit the same wiki page and one starts editing and saves the page before the other.
Read more about optimistic locking in Locking
module documentation.
Class Method Summary
Instance Attribute Summary
- #attempted_action readonly
- #record readonly
Constructor Details
.new(record = nil, attempted_action = nil) ⇒ StaleObjectError
# File 'activerecord/lib/active_record/errors.rb', line 353
def initialize(record = nil, attempted_action = nil) if record && attempted_action @record = record @attempted_action = attempted_action super("Attempted to #{attempted_action} a stale object: #{record.class.name}.") else super("Stale object error.") end end
Instance Attribute Details
#attempted_action (readonly)
[ GitHub ]# File 'activerecord/lib/active_record/errors.rb', line 351
attr_reader :record, :attempted_action
#record (readonly)
[ GitHub ]# File 'activerecord/lib/active_record/errors.rb', line 351
attr_reader :record, :attempted_action