first commit

app/Exceptions/Entities/TaskRelationException.php

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+<?php
+
+namespace App\Exceptions\Entities;
+
+use Flugg\Responder\Exceptions\Http\HttpException;
+
+class TaskRelationException extends HttpException
+{
+    public const NOT_SAME_PROJECT = 'task_relation.not_same_project';
+    public const CYCLIC = 'task_relation.cyclic';
+    public const ALREADY_EXISTS = 'task_relation.already_exists';
+    public const CANNOT_START_BEFORE_PARENT_ENDS = 'task_relation.cannot_start_before_parent_ends';
+
+
+    public function __construct($type)
+    {
+        $ERRORS = [
+            self::NOT_SAME_PROJECT => [
+                'code' => 409,
+                'message' => __("validation.tasks-relations.must_have_same_project")
+            ],
+            self::CYCLIC => [
+                'code' => 409,
+                'message' => __("validation.tasks-relations.cyclic_relation_detected")
+            ],
+            self::ALREADY_EXISTS => [
+                'code' => 409,
+                'message' => __("validation.tasks-relations.already_exists")
+            ],
+            self::CANNOT_START_BEFORE_PARENT_ENDS => [
+                'code' => 409,
+                'message' => __("validation.tasks-relations.cannot_start_before_parent_ends")
+            ]
+        ];
+        $this->errorCode = $type;
+        $this->status = $ERRORS[$type]['code'];
+
+        parent::__construct($ERRORS[$type]['message']);
+    }
+}