Students in high school with long hair

Most students around New Zealand have mufti as their school uniform. Well some kids that have mufti as their uniform but students made their hair long and don't tie them up. A year 12 student Lucan Battison was suspended from the St Johns College's principal around last month for having long hair. The rule at that state was that the students hair must be out of their eyes and should be off their collar. So he tried different ways to not make his hair long like tying it into the bun but the school did not allow it but, what the school wanted him to do was to cut his hair. Around that week Lucan and his school got sent to court about this problem. After the court room was finished the St Johns College's principal was not happy about the decision the court made but what is going to happen now?