Hvernig á að búa fólksflutninga teinn

Kóða dæmi

4
0

breyta dálk teinn dæmis

def change
    change_column(:table_name, :column_name, :new_type)
end
4
0

hvernig búa fólksflutninga teinn

rails g migration AddPartNumberToProducts
1
0

ruby á teinn líkið flytja

rails db:migrate

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