I trying transactions for the first time and trying to figure out the
best (DRY?) way to get the error message outside the transaction block.
If in a controller if I have
def create
Memo.transaction do
@memo = Memo.new(params[:memo]) # polymorphic build
@resource = @memo.memoble # get parent
@resource.create_memo(@memo) # saves memo and updates parent fields
end
...
#how do I check if there was a rollback so I can redirect based on
pass fail?
end
In the parents model I have
def create_memo
#does stuff and if there is an error not in validations
...
raise ActiveRecord::Rollback, 'Memo was NOT created. Payment exceeds
balance due'
...
end
I had create_memo return nil or error message and raised the exception
in the controller, but that does not seem to be the best way - but it
works.
The basic question is "How do I tell if a transaction was committed or
rolled back?"
Steve
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