Laravel Call to a member function isValid() on null

Question

In my project users can upload stuff and attach an image. I have a controller where I do a isValid check on the file input. Everything works great as long as you select a file. When I don't select a file I get this error

Call to a member function isValid() on null

On this line of code:

if (Input::file('image')->isValid())

The error is obvious since I don't select an image but I actually have no idea how I can fix this.

If anyone can help I'd be very happy :) Thanks in advance!

Answer 1

add enctype="multipart/form-data" to your form

Answer 2

First you need to check if your request is containing that file / input or not.

Determining If A File Was Uploaded

if (Request::hasFile('image'))
{
    /*Determining If An Uploaded File Is Valid*/
    if (Request::file('image')->isValid())
    {
        //
    }
}

Just for your info also make sure you are getting file while posting. Add attribute enctype="multipart/form-data" in your HTML Form Element.

You can use any of Input and Request facade. Input class is also referencing to \Illuminate\Http\Request in laravel