snipe-it/app/models/License.php

<?php

class License extends Elegant
{
	use SoftDeletingTrait;
    protected $dates = ['deleted_at'];

    protected $guarded = 'id';
    protected $table = 'licenses';
    protected $rules = array(
            'name'   => 'required|alpha_space|min:3|max:255',
            'serial'   => 'required|min:5',
            'seats'   => 'required|min:1|max:10000|integer',
            'license_email'   => 'email|min:0|max:120',
            'license_name'   => 'alpha_space|min:0|max:100',
            'note'   => 'alpha_space',
            'notes'   => 'alpha_space|min:0|max:255',
        );

    /**
     * Get the assigned user
     */
    public function assignedusers()
    {
        return $this->belongsToMany('User','license_seats','assigned_to','license_id');
    }

    /**
    * Get asset logs for this asset
    */
    public function assetlog()
    {
        return $this->hasMany('Actionlog','asset_id')
            ->where('asset_type', '=', 'software')
            ->orderBy('created_at', 'desc');
    }

    /**
    * Get uploads for this asset
    */
    public function uploads()
    {
        return $this->hasMany('Actionlog','asset_id')
            ->where('asset_type', '=', 'software')
            ->where('action_type', '=', 'uploaded')
            ->whereNotNull('filename')
            ->orderBy('created_at', 'desc');
    }


    /**
    * Get admin user for this asset
    */
    public function adminuser()
    {
        return $this->belongsTo('User','user_id');
    }

    /**
    * Get total licenses
    */
     public static function assetcount()
    {
        return DB::table('license_seats')
                    ->whereNull('deleted_at','and')
                    ->count();
    }

    /**
    * Get total licenses not checked out
    */
     public static function availassetcount()
    {
        return DB::table('license_seats')
                    ->where('assigned_to', '=', '0')
                    ->whereNull('deleted_at','and')
                    ->count();
    }

    /**
     * Get the number of available seats
     */
    public function availcount()
    {
        return DB::table('license_seats')
                    ->where('assigned_to', '=', '0')
                    ->where('asset_id', '=', NULL)
                    ->where('license_id', '=', $this->id)
                    ->whereNull('deleted_at','and')
                    ->count();
    }

    /**
     * Get the number of assigned seats
     *
     */
    public function assignedcount()
    {
        return DB::table('license_seats')
                    ->where('assigned_to', '>', '0')
                    ->where('asset_id', '>', '0')
                    ->where('license_id', '=', $this->id)
                    ->whereNull('deleted_at','and')
                    ->count();
    }

    public function remaincount()
    {
        $avail =  $this->availcount();
        $taken =  $this->assignedcount();
        $diff =   ($avail - $taken);
        return $diff;
    }

    /**
     * Get the total number of seats
     */
    public function totalcount()
    {
        $avail =  $this->availcount();
        $taken =  $this->assignedcount();
        $diff =   ($avail + $taken);
        return $diff;
    }

    /**
     * Get license seat data
     */
    public function licenseseats()
    {
        return $this->hasMany('LicenseSeat');
    }

    public function supplier()
    {
        return $this->belongsTo('Supplier','supplier_id');
    }

    /**
     * Get depreciation class
     */
    public function depreciation()
    {
        return $this->belongsTo('Depreciation','depreciation_id');
    }

     public function months_until_depreciated()
    {
        $today = date("Y-m-d");

        // @link http://www.php.net/manual/en/class.datetime.php
        $d1 = new DateTime($today);
        $d2 = new DateTime($this->depreciated_date());

        // @link http://www.php.net/manual/en/class.dateinterval.php
        $interval = $d1->diff($d2);
        return $interval;
    }

     public function depreciated_date()
    {
        $date = date_create($this->purchase_date);
        date_add($date, date_interval_create_from_date_string($this->depreciation->months . ' months'));
        return date_format($date, 'Y-m-d');
    }

    /**
    * Handle depreciation
    */
    public function depreciate()
    {
        return $this->getCurrentValue(
            License::find($this->license_id)->depreciation_id,
            $this->purchase_cost,
            $this->purchase_date
        );
    }
}