Laravel query is looking for column which doesn't exist

I have function for image upload which during product creation. This is the function in createSubmit in the controller

public function productsCreateSubmit()
{

    $product = new Product;
    $product->title = Input::get('title');
    $product->price = Input::get('price');
    if (Input::hasFile('image')) {
        $file = Input::file('image');
        $filename = str_random(20);
        $file->move('uploads/', $filename . '.' . $file->getClientOriginalExtension());
        $imagePath = 'uploads/' . $filename . '.' . $file->getClientOriginalExtension();
        $image = Image::make($imagePath);

        if ($image->width() > 200) {
            $image->resize(200, null, function ($constraint) {
                $constraint->aspectRatio();
            });
        }
        if ($image->height() > 200) {
            $image->resize(null, 200, function ($constraint) {
                $constraint->aspectRatio();
            });
        }
        $image->save();
    } else {
        $imagePath = 'default.png';
    }
    $product->image = $imagePath;
    $product->save();
    return Redirect::to('/admin/products');
}

When I click on submit I receive the error that column in database doesn't have default value.

SQLSTATE[HY000]: General error: 1364 Field 'file_id' doesn't have a default value (SQL: insert into products (title, price, image) values (test, 1, uploads/awy3CvVHLajER1E1gfpu.jpg))

The problem is that I don't have such a column in the table. This is the model of product

class Product extends Eloquent 
{
    protected $table = 'products';
    protected $primaryKey = 'product_id';
    public $timestamps = false;        
}

How the laravel decide to insert/look for this field?

via Chebli Mohamed