How to prevent to insert in db only the mask if lineedit no filled

[juliano.gomes]

hello buddies,
I have 2 lineedits with mask, one with phone mask an another with birthday mask.
these two fields aren't required fields, so how can i prevent to insert in db only the mask when the user do not fill these fields?

I tryed this before my insertRecord, but do not work:

if (ui->leBirth->text() == "  /  /    ") 
    {
        ui->leBirth->clearMask();
        ui->leBirth->clear();
    }
 
if (ui->lePhone->text() == "(  )    -    ")
    {
        ui->lePhone->clearMask();
        ui->lePhone->clear();
    }

if (ui->leBirth->text() == "  /  /    ") 
    {
        ui->leBirth->clearMask();
        ui->leBirth->clear();
    }

if (ui->lePhone->text() == "(  )    -    ")
    {
        ui->lePhone->clearMask();
        ui->lePhone->clear();
    }

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Thanks a lot.
Juliano