How to Store Multiple Select Values in Laravel 8? - php

Question

So my problem is that if i try to save only one value like "Location in the layout" of a post it works, but the moment i am saving an array I'm getting something like ["value 1" , "value 2"] in the DB, therefore it cant be read and in the CRUD-Controller there is no data saved when i am editing.everything works perfectly except the value i am getting from the data. I would appreciate any help, methods or alternatives
edit.blade.php
<div class="form-group">
<label>Select Post Location</label>
<select
class="form-control select2 select2-hidden-accessible"
multiple=""
data-placeholder="Select Locations"
style="width: 100%"
tabindex="-1"
aria-hidden="true"
name="post_locations[]"
id="post_locations"
>
<option value="TopBox-GR" #if ($post->post_locations == "TopBox-GR") selected #endif>TopBox-GR</option>
<option value="TopBox-C3" #if ($post->post_locations == "TopBox-C3") selected #endif>TopBox-C3</option>
<option value="TopBox-C4" #if ($post->post_locations == "TopBox-C4") selected #endif>TopBox-C4</option>
</select>
</div>
home controller
public function index()
{
$posts = post::where([['status',1], ['post_locations','TopBox-GR']])->get();
return view('user.blog',compact('posts'));
}
and view:
<div class="topbox-c4">
#foreach ($posts as $post)
<a href="{{ route('post',$post->slug) }}">
<div class="image-topbox-c4-container">
<img src="{{ Storage::disk('local')->url($post->image)}}" />
</div>
<div class="text-topbox-c4-container">
<h3>{{$post->title}}</h3>
<p>
{{$post->subtitle}}
</p>
</div>
</a>
#endforeach
</div>
post.controller:
public function update(Request $request, $id)
{
$this->validate($request,[
'title'=>'required',
'subtitle'=>'required',
'slug'=>'required',
'body'=>'required',
'image'=>'required',
'post_locations'=>'required',
]);
if($request->hasFile('image'))
{
$imageName = $request->image->store('public');
}
$post = post::find($id);
$post->image = $imageName;
$post->title = $request->title;
$post->subtitle = $request->subtitle;
$post->slug = $request->slug;
$post->post_locations = $request->post_locations;
$post->body = $request->body;
$post->status = $request->status;
$post->tags()->sync($request->tags);
$post->categories()->sync($request->categories);
$post->save();
return redirect(route('post.index'));
}

Answer 1

Firstly you should get selected locations in $selectLocations variable and all locations in $allLocations variable for edit.blade.php
In edit.blade.php, you can display like this:-
#foreach($selectLocations as $value)
<select class="form-control" name="post_locations[]" multiple=''>
<option value="">Select Location</option>
#foreach($allLocations as $val)
<option #if($value['id'] == $val->id) {{ 'selected' }} #endif value="{{ $val->id }}">{{ $val->name}}</option>
#endforeach
</select>
#endforeach