Сохранение объекта Laravel-5 с несколькими отношениями

Question

У меня есть три объекта Project, Staff и Client в проекте Laravel 5. Проект имеет много к одному отношение к клиенту и персоналу. Я объявил отношения, приведенные ниже.

Проект Модель:

/** 
* Fetch the Staff entity associated with a project 
* 
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo 
*/ 
public function projectLead() 
{ 
    return $this->belongsTo('App\Staff','project_leader_id'); 
} 

/** 
* Fetch the Client entity associated with a project 
* 
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo 
*/ 
public function client() 
{ 
    return $this->belongsTo('App\Client','client_id'); 
} 

В Штаба Модель:

public function leadProjects() 
    { 
    return $this->hasMany('App\Project','project_leader_id'); 
    } 

В Client Model:

private function projects() 
    { 
    return $this->hasMany('App\Project'); 
    } 

Моя ProjectController действие для сохранения проекта:

public function store(CreateProjectRequest $request) 
{ 
    $input = $request->all(); 


    $project = new Project(); 

    $teamLead = Staff::find($input['project_lead_id']); 
    $client = Client::find($input['project_lead_id']); 

    $project->name = $input['name']; 
    $project->active = $input['active']; 
    $project->date_setup = $input['date_setup']; 
    $project->status = $input['status']; 
    $project->hourly_rate_default = $input['hourly_rate_default']; 
    $project->projectLead()->associate($teamLead); 
    $project->client()->associate($client); 

    $project->save(); 

} 

миграции:

Schema::create('project', function(Blueprint $table) 
    { 
     $table->engine = 'InnoDB'; 

     $table->integer('project_id', true); 
     $table->string('name', 100); 
     $table->boolean('active'); 
     $table->date('date_setup'); 
     $table->boolean('status'); 
     $table->float('hourly_rate_default', 10, 0); 
     $table->integer('project_leader_id'); 

     $table->foreign('project_leader_id') 
      ->references('staff_id')->on('staff')->onDelete('cascade'); 
     $table->timestamps(); 
     $table->integer('client_id'); 
     $table->foreign('client_id') 
      ->references('client_id')->on('client')->onDelete('cascade'); 

    }); 

Однако, когда я пытаюсь сохранить новый проект, я получаю сообщение об ошибке.

SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a  child row: a foreign key constraint fails (`erplite_portal`.`project`, CONSTRAINT `project_project_leader_id_foreign` FOREIGN KEY (`project_leader_id`) REFERENCES `staff` (`staff_id`) ON DELETE CASCADE) (SQL: insert into `project` (`name`, `active`, `date_setup`, `status`, `hourly_rate_default`, `project_leader_id`, `client_id`, `updated_at`, `created_at`) values (Aida Shaghayegh Irajinia, 1, 12-01-81, 2, 12, {"staff_id":"1","name":"Praveesh A","date_joined":"2015-04-01","date_resigned":"0000-00-00","staff_role":"development","password":"praveesh","email":"praveesh@lbit.in","is_master":"1","phone":"9446814101","phone_alternate":"9448162992","profile_picture":"","active":"1"}, {"client_id":"1","active":"1","name":"Lbit","address":"Lbit Ekm","country_id":"91","phone":"9446814101","date_registered":"2015-04-01","project_lead_id":"1","billing_account_id":"1","credit_limit":"100","invoice_day":"0","invoice_due_days":"15","require_prepayment":"1","deduct_cc_fee_percentage":"0","hourly_rate":"150","currency_id":"91","recommended_prepayment_hours":"15","invoice_automatically":"1","invoice_projects_together":"1","invoice_representative_id":"1"}, 2015-04-27 01:44:13, 2015-04-27 01:44:13)) 

Я застрял на этой ошибке за довольно приличное количество времени. Любая помощь высоко ценится.

Answer 1

В изменении Персонал модели к этому

public function leadProjects() 
    { 
    return $this->hasMany('App\Project','project_leader_id','staff_id'); 
    } 

В Project Model

public function projectLead() 
{ 
    return $this->belongsTo('App\Staff','project_leader_id','staff_id'); 
}