apply the school year concept

app/Exceptions/SchoolYear/InvalidSchoolYearSelectionException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Exceptions\SchoolYear;
+
+use RuntimeException;
+
+final class InvalidSchoolYearSelectionException extends RuntimeException
+{
+}

app/Exceptions/SchoolYear/SchoolYearConfigurationException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Exceptions\SchoolYear;
+
+use RuntimeException;
+
+final class SchoolYearConfigurationException extends RuntimeException
+{
+}

app/Exceptions/SchoolYear/SchoolYearNotFoundException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Exceptions\SchoolYear;
+
+use RuntimeException;
+
+final class SchoolYearNotFoundException extends RuntimeException
+{
+}

app/Exceptions/SchoolYear/SchoolYearWriteConflictException.php

@@ -0,0 +1,9 @@
+<?php
+
+namespace App\Exceptions\SchoolYear;
+
+use RuntimeException;
+
+final class SchoolYearWriteConflictException extends RuntimeException
+{
+}