php - PHP 注意:数组到字符串的转换;数据库工厂
问题描述
我有一个人才模型,可以接受许多我想使用数据工厂填充的教育。但是使用工匠修补程序填充教育数据会导致“数组到字符串转换”。据我所见,我没有提供要转换为字符串的数组。以下是教育的模式、迁移和工厂
错误信息
PHP Notice: Array to string conversion in C:/Core/.../vendor/laravel/framework/src/Illuminate/Support/Str.php on line 360
运行此语句时收到
$talents->each( function($talent) { factory(App\Education::class)->create(['talent_id' => $talent->id]); })
class Education extends Model
{
protected $fillable = [
'talent_id',
'institution',
'education_level',
'other_education_level',
'qualification_field',
'start_date_month',
'start_date_year',
'end_date_month',
'end_date_year',
];
public function talent() {
return $this->belongsTo(Talent::class);
}
}
Schema::create('educations', function (Blueprint $table) {
$table->bigIncrements('id');
$table->unsignedBigInteger('talent_id')->index();
$table->string('institution');
$table->string('education_level');
$table->string('other_education_level')->nullable();
$table->string('qualification_field');
$table->unsignedTinyInteger('start_date_month');
$table->unsignedSmallInteger('start_date_year');
$table->unsignedTinyInteger('end_date_month')->nullable();
$table->unsignedSmallInteger('end_date_year')->nullable();
$table->timestamps();
});
$factory->define(Education::class, function (Faker $faker) {
return [
'talent_id' => factory(\App\Talent::class),
'institution' => $faker->word,
'education_level' => $faker->word,
'other_education_level' => $faker->word,
'qualification_field' => $faker->words,
'start_date_month' => rand(1, 12),
'start_date_year' => rand(1970, 2000),
'end_date_month' => rand(1, 12),
'end_date_year' => rand(1970, 2000),
];
});
以下是我运行的修补程序命令
$talents = App\Talent::all()
$talents->each( function($talent) { factory(App\Education::class)->create(['talent_id' => $talent->id]); })
这$talents->each( function($talent) { factory(App\Education::class)->create(['talent_id' => $talent->id]); })
是原因,但我不明白为什么
例如,具有不同类模型的相同命令可以工作
$talents->each( function($talent) { factory(App\WorkExperience::class)->create(['talent_id' => $talent->id]); })
class WorkExperience extends Model
{
protected $fillable = [
'talent_id',
'title',
'employment_type',
'company',
'start_date_month',
'start_date_year',
'end_date_month',
'end_date_year',
'description',
];
public function talent() {
return $this->belongsTo(Talent::class);
}
}
Schema::create('work_experiences', function (Blueprint $table) {
$table->bigIncrements('id');
$table->unsignedBigInteger('talent_id')->index();
$table->string('title');
$table->string('employment_type');
$table->string('company');
$table->unsignedTinyInteger('start_date_month');
$table->unsignedSmallInteger('start_date_year');
$table->unsignedTinyInteger('end_date_month')->nullable();
$table->unsignedSmallInteger('end_date_year')->nullable();
$table->text('description');
$table->timestamps();
});
$factory->define(WorkExperience::class, function (Faker $faker) {
return [
'talent_id' => factory(\App\Talent::class),
'title' => $faker->word,
'employment_type' => $faker->word(['Internship', 'Part Time', 'Full Time']),
'company' => $faker->word,
'start_date_month' => rand(1, 12),
'start_date_year' => rand(1970, 2000),
'end_date_month' => rand(1, 12),
'end_date_year' => rand(1970, 2000),
'description' => $faker->paragraph,
];
});
解决方案
您的问题可能在于这段代码:
'talent_id' => factory(\App\Talent::class),
工厂方法将为 Talent 类返回一个数据数组,并尝试将其应用于talent_id
, 并失败。
要纠正您的问题,请执行以下操作:
'talent_id' => function () { return factory(\App\Talent::class)->create()->id; }
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