cascade deletion of evaluation data.

database/migrations/2022_06_21_082227_create_evaluation_measures_table.php

@@ -19,11 +19,13 @@ public function up()
             $table->foreign('evaluation_id')
                 ->references('id')
                 ->on('evaluations')
+                ->onDelete('cascade')
             ;
             $table->unsignedBigInteger('measure_id')->nullable();
             $table->foreign('measure_id')
                 ->references('id')
                 ->on('measures')
+                ->onDelete('cascade')
             ;
             $table->date('end_date');
             $table->integer('expected_level');

database/migrations/2022_06_21_102219_create_danger_level_evaluation_table.php

@@ -19,11 +19,13 @@ public function up()
             $table->foreign('danger_level_id')
                 ->references('id')
                 ->on('danger_levels')
+                ->onDelete('cascade')
             ;
             $table->unsignedBigInteger('evaluation_id')->nullable();
             $table->foreign('evaluation_id')
                 ->references('id')
                 ->on('evaluations')
+                ->onDelete('cascade')
             ;
         });
     }