Add unit conversion handling for block_fuel like for fuel_used (#1076)

* Add unit conversion handling for block_fuel like for fuel_used, add further checks in PIREPTest->testUnitFields

* Remove accidentially added "use"

Co-authored-by: Andreas Palm <ap@ewsp.de>

app/Models/Pirep.php

@@ -326,6 +326,22 @@ class Pirep extends Model
         return $field_values;
     }
 
+    /**
+     * Set the amount of block fuel
+     *
+     * @param $value
+     */
+    public function setBlockFuelAttribute($value): void
+    {
+        if ($value instanceof Fuel) {
+            $this->attributes['block_fuel'] = $value->toUnit(
+                config('phpvms.internal_units.fuel')
+            );
+        } else {
+            $this->attributes['block_fuel'] = $value;
+        }
+    }
+
     /**
      * Set the amount of fuel used
      *