CODEWITHSUNDEEP
phplaraveleloquentlaravel-5one-to-one
User57
User57

Reputation: 2505

Laravel 5.2 : How to retrieve data from one to one eloquent (hasOne) Relationship

I have two Models: 1. Course. 2. Fee.

One course has only one fee. While giving input it's completely ok but when I tried to access the fee data, it's showing nothing in fee's column . How do I solve it?

Course Model:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Course extends Model
{
    protected $table='courses';
    protected $fillable = ['name'];


    public function fee(){
        return $this->belongsTo('App\Fee');
    }

}

Fee Model:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Fee extends Model
{
        protected $table='fees';
    protected $fillable = ['fee','course_id'];
    public function course()
    {
        return $this->hasOne('App\Course');
    }
}

Controller:

public function listofCourse(){
        $course=\App\Course::all();
        return view('listofCourse',compact('course'));
    }

View Page:

<html>
    <head> 
        <title> Course Details </title>

    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
    <script src="https://code.jquery.com/jquery-1.12.0.min.js"></script> 

    </head>
    <body>


<div class="container">
<h3> Student Details </h3>
      <table  class="table table-striped table-bordered"  id="example">
        <thead>
          <tr>
            <td>Serial No</td>
            <td>Course Name</td>
            <td>Course Fee</td>


        </tr>
        </thead>
        <tbody>
          <?php $i=1; ?>
        @foreach($course as $row)

          <tr>
            <td>{{$i}}</td>
            <td>{{$row->name }}</td>

            <td>    @if($row->course)
                  {{$row->course->fee}}
                   @endif</td>


             </tr>
          <?php $i++; ?>

        @endforeach
        </tbody>


      </table>

    </div>

    </body>
</html>

Upvotes: 2

Views: 15801

Answers (1)

Qazi
Qazi

Reputation: 5135

It seems that you have written the relationship wrongly... just do this.

Keep in Mind, Course Has The Fee means Course is must, so relation should start from Course side towards Fee.

Your Course Model

class Course extends Model
{
    protected $table='courses';
    protected $fillable = ['name'];


    public function fee(){
        return $this->hasOne('App\Fee','course_id', 'id');
    }

}

Your Fee Model

class Fee extends Model
{
    protected $table='fees';
    protected $fillable = ['fee','course_id'];
    public function course()
    {
        return $this->belongsTO('App\Course', 'course_id', 'id');
    }
}

Now you can get the relationship by doing this.

public function listofCourse(){
        $course=\App\Course::with('fee')->get();
        // doing this for dumping purpose
        echo "<pre>"; 
        print_r($course->toArray()); // you will see the `fee` array
        echo "</pre>"; 
        die();
        return view('listofCourse',compact('course'));
}

Upvotes: 9

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