'datetime', ]; public function invoices(){ return $this->hasMany(Invoice::class); } public function tickets(){ return $this->hasMany(Ticket::class); } public function main_tickets(){ return $this->hasMany(Ticket::class)->whereNull('parent_id'); } public function products(){ return $this->belongsToMany(Product::class,'customer_product'); } public function credits(){ return $this->hasMany(Credit::class); } public function addresses(){ return $this->hasMany(Address::class); } }