Hi all,
I am trying to insert/update a record based on their existence in mysql db
table.
But it produces Sequel::UniqueConstraintViolation.
A simplified code is something like below:
ds = db[:mytable].where(:id => 1234)
if ds.empty?
db[:mytable].insert({:id => 1234, :value => "aaaa"})
else
db[:mytable].where(:id => 1234).update({:id => 1234, :value => "aaaa"})
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