How can I create a dual has_many relationship in Laravel? - database

Question

I have a database with a Employee table and a Customer table. The Employee table has 2 one_to_many relationships with the Customer table; the foreign keys in the Customer table are 'primary_sales_contact_id' and 'primary_service_contact_id'. Both obviously refer to the id field on the Employee table.
How do I set up a migration for this, and how would I subsequently create a model for it? I'm a newbie in Laravel, so apologies if its blindingly obvious, and thanks for your time.

Answer 1

Employee migration
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateEmpoyeeTable extends Migration {
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('employee', function(Blueprint $table)
{
$table->engine = 'InnoDB';
$table->increments('id');
$table->string('name');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('employee');
}
}
Customer migration
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCustomerTable extends Migration {
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('customer', function(Blueprint $table)
{
$table->engine = 'InnoDB';
$table->increments('id');
$table->string('name');
$table->integer('primary_sales_contact_id')->unsigned();
$table->integer('primary_service_contact_id')->unsigned();
$table->foreign('primary_sales_contact_id')->references('id')->on('employee');
$table->foreign('primary_service_contact_id')->references('id')->on('employee');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('customer');
}
}
Employee model
class Employee extends Eloquent
{
protected $table = 'employee';
public $timestamps = false;
public function customersService() {
return $this->hasMany('Customer', 'primary_service_contact_id');
}
public function customersSale() {
return $this->hasMany('Customer', 'primary_sales_contact_id');
}
}
Customer model
class Customer extends Eloquent
{
protected $table = 'customer';
public $timestamps = false;
public function primarySalesContact() {
return $this->belongsTo('Employee', 'primary_sales_contact_id');
}
public function primaryServiceContact() {
return $this->belongsTo('Employee', 'primary_service_contact_id');
}
}
All stuff use like:
$customer = Customer::find(1);
echo $customer->primaryServiceContact;
$employee = Employee::find(1);
echo $employee->customersSale;