laravel unable to parse data - laravel-routing

Question

I want to go to page edit from PayAbleIndex to PayAbleEdit.
On laravel 5.4 i could use:
<button class="btn btn-primary">Edit</button>.
But currently I'm working on laravel 5.7 and i copy same code but laravel couldn't get any data from it.
My blade.php
#foreach($purchase as $data)
<tr>
<td>{{ $data->id }}</td>
<td>{{ $data->created_at }}</td>
<td>#if($data->import == 'y')Yes #else No #endif</td>
<td>Edit {{ $data->id }}</td>
</tr>
#endforeach
my controller
public function edit(accountPayAble $accountPayAble)
{
$pa = accountPayAble::where('purchases',$accountPayAble->id)->get();
return view('pages.payAbleEdit',['pa' => $pa]);
}
My accountPayAble Primary key are not ID but purchases
my account payable model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class accountPayAble extends Model
{
protected $table = "account_pay_ables";
protected $primaryKey = 'purchases';
public $timestamps =false;
public function purchase(){
return $this->belongsTo('App\purchase','purchases');
}
}

Answer 1

I think controller return array name should be purchase as below
public function edit(accountPayAble $accountPayAble)
{
$pa = accountPayAble::where('purchases',$accountPayAble->id)->get();
return view('pages.payAbleEdit',['purchase' => $pa]);
}
Check this and if it is not possible comment below.

Answer 2

Here is how generally edit method works
If you're passing id in edit method parameter in blade like this
Edit {{ $data->id }}
In this case route must have /{id}
// If you are using resource route then it will add /{id} in your edit parameter
Route::resource('payable', 'AccountPayAble');
// If you've defined custom route then
Route::get('/payable/edit/{id}','AccountPayAble#edit')->name('payable.edit');
In Your controller
// then you need to pass as well in your Controller method
public function edit(Request $request, $id)
{
$ap = AccountPayAble::find($id);
// OR
$ap = AccountPayAble::where('primary_key',$id)->first();
return view('pages.payAbleEdit',compact('ap'));
}
// If you've primary key other than id then define key into your model
protected $primaryKey = 'your_key_name';
I hope this helps.