SQLSTATE[42S22]: Column not found: 1054 Unknown column where as the columns exists in my db

Question

What I am really trying to do is that i have company which has one Manager which is a customer. Now I want to Display the manager which belongs to that company when i want to show the details of the company. I am saving the Managers id as manager_id in the companies table. When I try to get the Manager through the managers function in the Company model it throws an error. So is there any solution to this problem. Or should I use the simple query method.

This is my company model

class Company extends Model
{
    use SoftDeletes;

    public $table = 'companies';

    protected $primaryKey = 'id';
    protected $dates = ['deleted_at'];


    public $fillable = [
        'name',
        'address_id',
        'street_address',
        'manager_id',
        'service_id'
    ];

    /**
     * The attributes that should be casted to native types.
     *
     * @var array
     */
    protected $casts = [
        'name' => 'string',
        'address_id' => 'integer',
        'street_address' => 'string',
        'manager_id' => 'integer',
        'service_id' => 'integer'
    ];

    /**
     * Validation rules
     *
     * @var array
     */
    public static $rules = [
        'name' => 'required',
        'street_address' => 'required'
    ];

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     **/
    public function address()
    {
        return $this->belongsTo(\App\Address::class, 'address_id', 'id');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\HasOne
     **/
    public function customer()
    {
        return $this->hasOne('\App\Models\Customer', 'manager_id', 'id');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\HasOne
     **/
    public function service()
    {
        return $this->hasOne(\App\Models\Service::class, 'service_id', 'id');
    }
}

This is my Customers Model

class Customer extends Model
{
    use SoftDeletes;

    public $table = 'customers';

    protected $primaryKey = 'id';

    protected $dates = ['deleted_at'];


    public $fillable = [
        'title',
        'first_name',
        'last_name',
        'email',
        'password',
        'question_id',
        'answer',
        'address_id',
        'street_address',
        'street_address',
        'picture_url',
        'preferred_language',
        'designation',
        'contact_number',
        'company_id'
    ];

    /**
     * The attributes that should be casted to native types.
     *
     * @var array
     */
    protected $casts = [
        'title' => 'string',
        'first_name' => 'string',
        'last_name' => 'string',
        'email' => 'string',
        'password' => 'string',
        'question_id' => 'integer',
        'answer' => 'string',
        'address_id' => 'integer',
        'street_address' => 'string',
        'street_address' => 'string',
        'picture_url' => 'string',
        'preferred_language' => 'string',
        'designation' => 'string',
        'contact_number' => 'string',
        'company_id' => 'integer'
    ];

    /**
     * Validation rules
     *
     * @var array
     */
    public static $rules = [
        'title' => 'required',
        'first_name' => 'required',
        'last_name' => 'required',
        'email' => 'required',
        'answer' => 'required',
        'contact_number' => 'required'
    ];

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     **/
    public function question()
    {
        return $this->belongsTo(\App\Models\Question::class, 'question_id', 'id');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     **/
    public function address()
    {
        return $this->belongsTo(\App\Address::class, 'address_id', 'id');
    }

    /**
     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
     **/
    public function company()
    {
        return $this->belongsTo(\App\Models\Company::class, 'company_id', 'id');
    }
}

This is what I am trying to do

public function show($id)
{
    $company = $this->companyRepository->findWithoutFail($id);

    if (empty($company)) {
        Flash::error('Company not found');

        return redirect(route('companies.index'));
    }

    $manager=$company->customer;
    return view('companies.show')->with('company', $company);
}

Company Migration File

class CreateCompaniesTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('companies', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->integer('address_id')->unsigned();
            $table->string('street_address');
            $table->integer('manager_id')->unsigned();
            $table->integer('service_id')->unsigned();
            $table->timestamps();
            $table->softDeletes();
            $table->foreign('address_id')->references('id')->on('addresses');
            $table->foreign('manager_id')->references('id')->on('customers');
            $table->foreign('service_id')->references('id')->on('services');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::drop('companies');
    }
}

Customer Migration

public function up()
{
    Schema::create('customers', function (Blueprint $table) {
        $table->increments('id');
        $table->string('title');
        $table->string('first_name');
        $table->string('last_name');
        $table->string('email');
        $table->string('password');
        $table->integer('question_id')->unsigned();
        $table->string('answer', 100);
        $table->integer('address_id')->unsigned();
        $table->text('street_address');
        $table->text('picture_url');
        $table->string('preferred_language');
        $table->string('designation');
        $table->string('contact_number');
        $table->integer('company_id')->unsigned();
        $table->timestamps();
        $table->softDeletes();
        $table->foreign('question_id')->references('id')->on('questions');
        $table->foreign('address_id')->references('id')->on('addresses');
        $table->foreign('company_id')->references('id')->on('companies');
    });
}

/**
 * Reverse the migrations.
 *
 * @return void
 */
public function down()
{
    Schema::drop('customers');
}
}

But I get this error

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'customers.manager_id' in 'where clause' (SQL: select * from customers where customers . manager_id = 3 and customers . manager_id is not null and customers . deleted_at is null limit 1)

Answer 1

Your Company model has this relationship:

public function customer()
{
    return $this->hasOne('\App\Models\Customer', 'manager_id', 'id');
}

This suggests there is a manager_id column in the customers table, which there is not. I suspect this should be customer_id .

You are being far more verbose than is needed. This could simply be defined like so:

public function customer()
{
    return $this->hasOne('\App\Models\Customer');
}

Column names will be automatically calculated, saving you from errors.

Likewise, there is no need to enter every column in your $casts property. Only those that require special casting within Laravel like boolean or array need to be specified. Laravel's timestamp columns (such as deleted_at ) will automatically cast to dates. $table and $primaryKey are also automatically determined.