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module Lockbox
module Calculations
def pluck(*column_names)
return super unless model.respond_to?(:lockbox_attributes)
lockbox_columns = column_names.map.with_index do |c, i|
next unless c.respond_to?(:to_sym)
[model.lockbox_attributes[c.to_sym], i]
end.select do |la, _i|
la && !la[:migrating]
end
return super unless lockbox_columns.any?
# replace column with ciphertext column
lockbox_columns.each do |la, i|
column_names[i] = la[:encrypted_attribute]
end
# pluck
result = super(*column_names)
# decrypt result
# handle pluck to single columns and multiple
#
# we can't pass context to decrypt method
# so this won't work if any options are a symbol or proc
if column_names.size == 1
la = lockbox_columns.first.first
result.map! { |v| model.send("decrypt_#{la[:encrypted_attribute]}", v) }
else
lockbox_columns.each do |la, i|
result.each do |v|
v[i] = model.send("decrypt_#{la[:encrypted_attribute]}", v[i])
end
end
end
result
end
end
end
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