How to resolve Array to String conversion error Laravel

Question

I'm new to laravel and i encountered an array to string conversion error while trying to send tags select form data to sync with my blogs table.

Below is blade snippet that retrieves tags from the database

<div class="form-group">
   <label for="tag" class="control-label">Tags</label>
   {!! Form::select('tag[]', $tags, old('tag'), ['class' => 'form-control select2', 'multiple' => 'multiple', 'id' => 'add-tag' ]) !!}   
 </div>

The BlogsController

$blog_data = request()->validate([
            'tag.*' => 'required'
    ]);

 blogs = Blog::create( $blog_data );  
     $blogs->tags()->sync((array)request()->input('tag'));

when i perform a dd on request()->tag

  array:2 [▼
  0 => "1"
  1 => "2"
]

I think this issue relates to github.com/LaravelCollective/html/issues/464 which I encountered some time ago. The issue is that LaravelCollective/html does not seem to work well with array inputs — apokryfos
– apokryfos, Commented Jun 27, 2020 at 10:18

A.A Noman · Accepted Answer · 2020-06-27 11:10:32Z

3

Just use like this

$blogs = Blog::create( $blog_data );

If insert then use like this

$blogs->tags()->attach($request->tag);

If update then use like this

$blogs->tags()->sync($request->tag);

edited Jun 27, 2020 at 11:10

answered Jun 27, 2020 at 11:04

A.A Noman

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8 Comments

Alkari Over a year ago

Thanks for the reply. I tried that already and it doesn't work

Alkari Over a year ago

for the insert operation

A.A Noman Over a year ago

@Alkari then you have to use attach

Alkari Over a year ago

$blogs->tags()->attach( request()->tag); this doesn't work

A.A Noman Over a year ago

@Alkari It's a many to many relation right?? If yes then it should be work. I use this code minimum 5 to 7 project at all.

|

Alkari · Accepted Answer · 2020-06-27 18:48:08Z

1

Thank you, i was able to remove this line of code and it worked

tag.*' => 'required'

answered Jun 27, 2020 at 18:48

Alkari

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