Keep in mind: this function will overwrite any value input by the user for this field. Therefore it should always be used in conjuctiton with omitAddField so that an input box for the field does not even display when adding an entry.
- The database field name you want to be able to assign a specific data input to on row insert
- Value to overwrite the field with - if the value is "NOW()" it is parsed not as a string, but as a mySQL expression
NOTE: you MUST use omitAddField with the field for it to be overwritten; reason being - if a value is sent for that field as part of the "add" form then that takes priority over addValueOnInsert