The schema says that subscription_frequencies.displayorder can be null, and
everything else deals with it being null just fine, but if you try to save
a new frequency without specifying display order with strict_sql_modes set,
you get an error.
Test plan:
1. Without the patch, Serials - Manage frequencies - New frequency
2. Description is mandatory, so fill it in, then click Save
3. Boom! Apply patch, restart_all
4. Repeat steps 1-2, and verify that no error is thrown and the new
frequency shows up (at the top of the list since nothing comes before
something)
5. New frequency, fill in Description, try typing something other than a
number in Display order and saving. You should be told to follow the
directions that only numeric characters are allowed
Sponsored-by: Chetco Community Public Library
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Aleisha Amohia <aleishaamohia@hotmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
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