umbra
Simple question, how to add a default Ecto.Date value to a field without using timestamp?
alter table(:registro) do
modify :data, :date, [null: false, default: Ecto.Date.utc()]
end
I know that this isnt the right way to do, but the exception still bugs me
(ArgumentError) unknown default #Ecto.Date<2017-03-21> for type :date. :default may be a string, number, boolean, empty list or a fragment(…)
Thanks
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outlog
the exception message is actually pretty good.. you need to use a fragment - see docs for solution
https://hexdocs.pm/ecto/Ecto.Migration.html#fragment/1
umbra
Ok, can you explain whats a fragment and how to use it?
the fragment() function is calling a now() function?
outlog
I believe a fragment is best described as ‘custom sql’
the now() function is a function in postgres PostgreSQL: Documentation: 9.6: Date/Time Functions and Operators
modify :data, :date, [null: false, default: fragment("now()")]should work, although you are using a date field, so I’m not 100% - you might need to use:
modify :data, :date, [null: false, default: fragment("current_date")]umbra
Thank you very much! =)