Call functions in to model..

[eluser]tnathos[/eluser]
i want use a function in the same model for other function... for reuse code and not rewrite the same code in severals funcionts.. for example, in this code.. i have 3 functions diferents but whit a same code for insert data in DB... this code its the same, but run in diferents event in my APP... its no call funcions bettewen a controller else into same model for reuse code.

<?php
MODEL....

FUNCTION A {
insert into table a field a, b parametres -> post xxxxx
delete * table b
}

FUNCTION B {
insert into table a field a, b. parametres -> post xxxxx
delete * table c
}
?>

I THINK WHAT CAN BE....

<?php

MODEL

FUNCTION A {
CALL FUNCTION C
delete * table b
}

FUNCTION B {
CALL FUNCTION C
delete * table a
}

FUNCTION C {
insert into table a field a, b. parametres -> post xxxxx
}

?>