Laravel Searchform and Delete not working - php

Question

So I have a search form for offices and delete for offices, also edit it those 2 were working before. But after I changed and fix edit form and button those are not working anymore the search is not working it shows this error
Undefined variable: building (View: C:\xampp\htdocs\Eguide\resources\views\search.blade.php)
The delete also show this error but it works after I go back to the office page it deleted it but it shows an error message:
Trying to get property 'name' of non-object (View: C:\xampp\htdocs\Eguide\resources\views\building.blade.php)
DD offices result
This is the controller for search and delete
OfficeController.php
public function index()
{
$search = \Request::get('search');
$offices = Office::where('name','like','%'.$search.'%')->get();
return view('search',compact('offices','search'));
}
public function store(Request $request, $id)
{
$office = new Office();
$office->name =$request->officename;
$office->floor = $request->floor;
$office->building_id = $id;
$office->save();
\Session::flash('building_flash', 'Created successfully!');
return redirect()->route('building', $id);
}
public function show($id)
{
$office = Office::find($id);
return view('office')->withOffice($office);
}
public function edit($id, $office_id) {
$office = Office::find($office_id);
return view('editoffice', compact('office', 'id'));
}
public function update(Request $request, $id, $office_id)
{
// echo $id.'--'.$office_id;exit;
//$office = Office::find($id);
$office = Office::find($office_id);
$office->name = $request->officename;
$office->floor = $request->floor;
$office->update();
\Session::flash('building_flash', 'Updated successfully!');
return redirect()->route('building', $id);
}
public function destroy($id)
{
$office = Office::find($id);
$office->delete();
\Session::flash('building_flash_delete', 'Deleted successfully!');
return redirect()->route('building', $id);
}
}
search.blade.php
No error in search when I remove this
Edit
<div class="search">
{!! Form::open(['method'=> 'GET','url'=>'offices','role'=>'search']) !!}
<div class="input-group col-xs-4 col-md-6" >
<input type="text" name="search" class="form-control" placeholder="Search...">
<span class="input-group-btn">
<button type="submit" class="btn btn-info btn-md">Search
</button>
</span>
</div>
{!! Form::close()!!}
</div>
<hr>
<table class="table">
<thead>
<th>Office Name</th>
<th>Belongs to</th>
<th>Office Floor</th>
</thead>
<tbody>
#foreach($offices as $office)
<tr>
<td>{{optional($office)->name}}</td>
<td>{{$office->building->name}}</td>
<td>{{$office->floor}}</td>
<td class="a">
#if(!Auth::guest())
Edit
Delete
#endif
#endforeach
#endsection
I also have Building.php in app folder it has code like this
class Building extends Model
{
public $table = 'buildings';
public function offices(){
return $this->hasMany('App\Office');
}
}
Office.php
class Office extends Model
{
public function building(){
return $this->belongsTo('App\Building');
}
}
ROUTES
Route::get('/', 'BuildingController#index')->name('index');
Route::get('building/{id}', 'PageController#show')->name('building');
Route::get('office/{id}', 'OfficeController#show')->name('officeMenu');
Route::get('offices', 'OfficeController#index');
Route::group(['middleware' => ['auth']], function () {
Route::get('buildings/create', 'BuildingController#create')->name('createbform');
Route::post('building/create/store', 'BuildingController#saveBuilding')->name('createbuilding');
Route::get('building/{id}/edit', 'BuildingController#edit');
Route::post('building/{id}/edit', 'BuildingController#update')->name('editbuilding');
Route::get('building/{id}/delete', 'BuildingController#destroy');
Route::get('building/{id}/offices/create', 'OfficeController#create')->name('createofficeform');
Route::post('building/{id}/offices/create/store', 'OfficeController#store')->name('createoffice');
Route::get('building/{id}/offices/{office_id}/edit', 'OfficeController#edit')->name('editofficeform');
Route::post('building/{id}/offices/{office_id}/edit', 'OfficeController#update')->name('editoffice');
Route::get('offices/{id}/delete', 'OfficeController#destroy')->name('deleteoffice');
});
buildidng.blade.php
<div class="officebg">
<link href="https://fonts.googleapis.com/css?family=Anton" rel="stylesheet">
<div class="Bldgttl">
<div class="container">
<div class="row">
<div class="col-lg-12">
<img src="{{URL::to('/assets')}}/{{$building->picture}}" alt="" style="height:300px; width:500px;">
</div>
</div>
<div class="row">
<div class="col-lg-12">
{{$building->name}}
</div>
</div>
</div>
</div>
<div class="rows">
<div class="col-md-6 col-md-offset-3">
<div class="col-xs-4 col-md-6">
#if(!Auth::guest())
Create an Office
#endif
</div>
{!! Form::open(['method'=> 'GET','url'=>'offices','role'=>'search']) !!}
<div class="input-group col-xs-4 col-md-6" >
<input type="text" name="search" class="form-control" placeholder="Search...">
<span class="input-group-btn">
<button type="submit" class="btn btn-info btn-md">Search</i>
</button>
</span>
</div>
{!! Form::close()!!}
<table class="table">
<div class="ttitle">
<thead>
<th>Office Name</th>
<th>Office Floor</th>
</thead>
<tbody>
#foreach($offices as $office)
<tr>
<td>{{optional($office)->name}}</td>
<td>{{$office->floor}}</td>
<td class="a">
#if(!Auth::guest())
Edit
Delete
#endif
</td>
</tr>
#endforeach
</tbody>
</table>
</div>
</div>
#endsection

Answer 1

You don't have a building defined in show.
public function show($id)
{
$office = Office::find($id);
return view('office')->withOffice($office);
}
What you can do is to load a building in show method
public function show($id)
{
$office = Office::find($id);
$building = Building::first();//some logic to find building
return view('office',['building' => $building, 'office' => $office]);
}

Answer 2

Your building.blade.php is trying to access the $building variable. Your show method in your controller is only passing $office as data. Since $building doesn't exist trying to get the name property of it is returning an error.
You need to either pass $building from the controller to the view, or if it is part of $office extrapolate $building from that variable.
public function show($id)
{
$office = Office::find($id);
$building = Buildng::where('id', '=', $office->building_id)->firstOrFail();
return view('office',compact('office', 'building'));
}