image can not update in database in laravel - mysql

Question

I write code for updating image it works when i upload new image. But when i dont upload image it caught exception as
Integrity constraint violation: 1048 Column 'photo' cannot be null
my query
update student set photo = , updated_at = 2018-12-14 10:38:35.
my controller code
function updatedata(Request $req)
{
dd($req->input());
$post=User::find($req->input('userid'));
$post->name=$req->input('name');
$post->address=$req->input('address');
$post->photo=$req->input('image');
$post->gender=$req->input('gender');
$post->hobbies= implode(',', Input::get('hobbies'));
$post->std=$req->input('std');
$requestData = $req->all();
if($req->hasFile('image'))
{
$image=$req->file('image');
$rules = array('file' => 'required|mimes:png,gif,jpeg'); // 'required|mimes:png,gif,jpeg,txt,pdf,doc'
$validator = \Illuminate\Support\Facades\Validator::make(array('file'=> $file), $rules);
$pathToStore=public_path('/');
if($validator->passes())
{
$filename = $file->getClientOriginalName();
$extension = $file -> getClientOriginalExtension();
$picture = sha1($filename . time()) . '.' . $extension;
$upload_success = $file->move($pathToStore, $picture);
if($upload_success)
{
//if success, create thumb
$image = Image::make($picture)->resize(600, 531)->save($pathToStore,$picture);
$oldfilename=$user->photo;
$user->photo=$filename;
Storage::delete($oldfilename);
}
}
$requestData['photo'] = "$pathToStore/{$picture}";
}
$post->update($requestData);
return redirect()->route('show');
}

Answer 1

remove $user->photo=$req->input('image'); outside of if condition and set null to true and default null in database image field.
function updatedata(Request $req)
{
//dd($req->input());
$user = User::find($req->input('userid'));
if ($req->hasFile('image')) {
$image = $req->file('image');
$filename = time() . '.' . $image->getClientOriginalExtension();
$location = public_path('/' . $filename);
Image::make($image)->resize(100, 100)->save($location);
$oldfilename = $user->photo;
Storage::delete($oldfilename);
$input['photo'] = $filename;
}
else {
$input['photo'] = $user->photo;
}
$input['name'] = $req->input('name');
$input['address'] = $req->input('address');
$updateUser = User::where('id', $req->input('userid'))->update($input);
return redirect()->route('show');
}

Answer 2

it looks like you have add not null constraints in column 'photo'. So remove it and set default image path to it.

Answer 3

set a default path of image if image not upload
if($req->hasFile('image'))
{
$image=$req->file('image');
$filename=time().'.'.$image->getClientOriginalExtension();
$location=public_path('/'.$filename);
Image::make($image)->resize(100,100)->save($location);
$oldfilename=$user->photo;
$user->photo=$filename;
Storage::delete($oldfilename);
}else {
$user->photo = "set/to/default/path/image.jpg";
}
otherwise update user table migration look like this and migrate again
$table->string('photo')->nullable();

Answer 4

You should try this:
function updatedata(Request $req)
{
//dd($req->input());
$user=User::find($req->input('userid'));
$user->name=$req->input('name');
$user->address=$req->input('address');
if($req->hasFile('image'))
{
$image=$req->file('image');
$filename=time().'.'.$image->getClientOriginalExtension();
$location=public_path('/'.$filename);
Image::make($image)->resize(100,100)->save($location);
$oldfilename=$user->photo;
$user->photo=$filename;
Storage::delete($oldfilename);
$user->photo=$req->input('image');
} else {
$user->photo="notAvailable.jpg";
}
$user->save();
return redirect()->route('show');
}