id(); $table->timestamps(); $table->integer('site_id')->unsigned(); $table->boolean('active')->default(false); $table->date('billed_at'); $table->string('invoice_num')->nullable(); $table->foreign(['site_id'])->references(['id'])->on('sites'); $table->integer('supplier_id')->unsigned(); $table->foreign(['supplier_id'])->references(['id'])->on('suppliers'); $table->unique(['id','site_id']); }); } /** * Reverse the migrations. * * @return void */ public function down() { Schema::dropIfExists('costs'); } };