ChangHoon, Jung

* Change column with null false and default value lead to slow database, If table size is big. * Because this situation update to default value all rows * https://github.com/rails/rails/blob/5-2-stable/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb#L440...

need skip type casting

2

some cell is needed original string. in my case cell data is floating number(currency style), type is nil, but style is fixnum. this case cell data is casting to integer....

How to show snackbar top of keyboard?

2

i want snackbar top of keyboard. how to do it?

gemspec file is needed for Gemfile

close popup handler execute when popup is closed. i think this is useful

some location message is unified