Laravel从ManyToOne关系错误SQLSTATE创建雄辩的实例[23000]

Question

我想使用Laravel 5创建一个雄辩的关系实例。

我有两个迁移和两个雄辩的模型。

公司迁移：

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateCompaniesTable extends Migration {

    public function up()
    {
        Schema::create('Companies', function(Blueprint $table)
        {
            $table->string('CompanyCode', 15);
            $table->string('Name', 200);
            $table->string('Type', 100);
            $table->tinyInteger('IsActive')->default(1);
            $table->timestamps();

            $table->primary('CompanyCode');
        });
    }

    public function down()
    {
        Schema::drop('Companies');
    }

}

公司模式：

namespace App\Models\Setting\Organization;

use Illuminate\Database\Eloquent\Model;

class Company extends Model {

    protected $fillable = ['CompanyCode', 'Name', 'Type'];

    public function organizationUnits(){
        return $this->hasMany('App\Models\Setting\Organization\OrganizationUnit', 'CompanyCode');
    }
}

组织单位迁移：

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateOrganizationUnitsTable extends Migration {

    public function up()
    {
        Schema::create('OrganizationUnits', function(Blueprint $table)
        {
            $table->string('OrganizationUnitCode', 15); //PK
            $table->string('CompanyCode', 15); //FK
            $table->string('Name', 200);
            $table->tinyInteger('IsActive')->default(1);
            $table->timestamps();

            $table->primary('OrganizationUnitCode');
            $table->foreign('CompanyCode', 'OrgUnits_Company_FK')
                  ->references('CompanyCode')
                  ->on('Companies')
                  ->onDelete('cascade');
        });

    }

    public function down()
    {
        Schema::drop('OrganizationUnits');
    }

}

组织单元模型：

namespace App\Models\Setting\Organization;

use Illuminate\Database\Eloquent\Model;

class OrganizationUnit extends Model {

    protected $table = "OrganizationUnits";

    protected $fillable = ['OrganizationUnitCode', 'CompanyCode', 'Name'];

    public function company(){
        return $this->belongsTo('App\Models\Setting\Organization\Company', 'CompanyCode');
    }

}

关系是一个公司可以有一个或多个OrganizationUnit，一个OrganizationUnit必须有一个且只能有一个公司。

我尝试在php artisan tinker中使用以下代码创建OrganizationUnit的新实例：

$company = \App\Models\Setting\Organization\Company::first();
$orgunit = $company->organizationUnits()->create(['OrganizationUnitCode' => 'abcdef']);

但Laravel给出了以下错误：

Illumb\Database\QueryException，带有消息“SQLSTATE[23000]：完整性约束冲突：1048列“CompanyCode”不能为空（SQL:插入到“OrganizationUnits”（“OrganizationUnitCode”）、“CompanyCode”、“updated_at`、“created_at`）值（abcdef，2015-12-17 00:17:332015-12-17 00:17:33））

我哪里做错了？请帮忙。我是新来的Laravel

Answer 1

它清楚地表明CompanyCode不能为null。您可以手动定义它，也可以在创建迁移时在Blueprint实例上使用increments方法。