sluggable behavior: FatalThrowableError - Unsupported operand types

[icyevilfantasy]

i'm getting a FatalThrowableError through Unsupported operand types while using the sluggable behavior.

This error occurs only if i have duplicate titles, so that the behavior have to modify the slug with a number.

i'm using

my schema

problematic code in base class

at the end of protected function makeSlugUnique(...){ ... }

my temporary solution

[dereuromark]

All further dev and tickets should go into https://github.com/SkyFoxvn/PropelBundle as this will most likely be the follower of this now.