Laravel版本:7.0这是我的桌子。
Schema::create('model_email_form', function (Blueprint $table) {
$table->id();
$table->string('model_type');
$table->unsignedBigInteger('model_id');
$table->unsignedBigInteger('email_id');
$table->unsignedBigInteger('form_id');
$table->timestamps();
});
这是我的Service
模特。
public function forms()
{
return $this->morphToMany(
Form::class,
'model',
'model_email_form',
'model_id',
'form_id'
);
}
public function emails()
{
return $this->morphToMany(
Email::class,
'model',
'model_email_form',
'model_id',
'email_id'
);
}
我插在数据model_email_form
表中,但是,当我得到service model
的对象,emails
并且forms
有空对象。
谁能帮我?
根据您的问题和评论:
有表格,电子邮件和服务。表单可以与任何数量的不同类型的模型相关联。电子邮件可以与许多不同类型的模型相关联。服务可以具有许多表格,服务可以具有许多电子邮件。
以此为基础,这就是我们的模式:
Schema::create('forms', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name'); // as an example
...
$table->timestamps();
});
Schema::create('formables', function (Blueprint $table) {
$table->unsignedBigInteger('form_id'); // the id of the form
$table->unsignedBigInteger('formable_id'); // the associated model's id
$table->string('formable_type'); // The associated model's class name
});
Schema::create('emails', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('subject'); // as an example
...
$table->timestamps();
});
Schema::create('emailables', function (Blueprint $table) {
$table->unsignedBigInteger('email_id'); // the id of the email
$table->unsignedBigInteger('emailable_id'); // the associated model's id
$table->string('emailable_type'); // The associated model's class name
});
Schema::create('services', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name'); // as an example
...
$table->timestamps();
});
使用该架构,我们可以创建具有以下关系的以下模型:
class Form extends Model
{
public function services()
{
return $this->morphedByMany(Service::class, 'formable');
}
// Add the other morphedByMany relationships of forms
}
class Email extends Model
{
public function services()
{
return $this->morphedByMany(Service::class, 'emailable');
}
// Add the other morphedByMany relationships of emails
}
class Service extends Model
{
public function forms()
{
return $this->morphedToMany(Form::class, 'formable');
}
public function emails()
{
return $this->morphedToMany(Email::class, 'emailable');
}
}
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