php - Laravel HasMany relationship Undefined property: IlluminateDatabaseEloquentRelationsHasMany::$id

Question

i have a problem with reading out data with a relationship. some how it returns Undefined property: IlluminateDatabaseEloquentRelationsHasMany::$id. I have no clue what i did wrong since i just started using laravel.

model 1 Project:

namespace App;

use IlluminateDatabaseEloquentModel;

class Project extends Model
{
    protected $table = "project";

public function projectitem()
    {
        return $this->hasMany('AppProjectitem');
    }
}

model 2 Projectitem:

namespace App;

use IlluminateDatabaseEloquentModel;

class Projectitem extends Model
{
    protected $table = "project_item";

    function project(){

        return $this->belongsTo('AppProject');

    }
}

index.php

 @foreach ($projects as $project) 
       <tr>
           <td>{{$project->projectitem()->id}}</td>
           <td></td>
      </tr>
     @endforeach

i have no clue why this happens, i've tried a couple of solutions but none seems to work.

Any help would be appreciated

Answer 1

Look at the relation - it is hasMany relation. meaning, on project has many project items.

try thhis,

 @foreach ($projects as $project) 
    @foreach ($project->projectitem as $projectitem)
       echo $projectitem->id
    @endforeach
 @endforeach

NOTE: this inner loop is necessary only if the relation is hasMany. if it is hasOne, no need to change anything in you loop, just change the relation to hasOne and run.