The idea of solving a problem with your database code in your data class feels wrong to me. The fact that your database code is "in many places" is your real problem.

A good solution would be to numify the value before placing it in the object in the first place.

There are some more hackish solutions too:

• Coerce the value to a number when adding it to the object.
• Provide a getter that numifies and call it something other than now. (Requires changing DB code.)
• Provide a getter that numifies and call it now.

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