Some code optimalisations.

app/Models/Bill.php

@@ -37,6 +37,8 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  * @property int    $transaction_currency_id
  * @property string $amount_min
  * @property string $amount_max
+ * @property int    $id
+ * @property string $name
  */
 class Bill extends Model
 {

app/Models/Budget.php

@@ -31,6 +31,8 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
  * Class Budget.
+ * @property int $id
+ * @property string $name
  */
 class Budget extends Model
 {

app/Models/Category.php

@@ -31,6 +31,9 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
  * Class Category.
+ *
+ * @property string $name
+ * @property int $id
  */
 class Category extends Model
 {

app/Models/Note.php

@@ -26,6 +26,8 @@ use Illuminate\Database\Eloquent\Model;
 
 /**
  * Class Note.
+ *
+ * @property string $text
  */
 class Note extends Model
 {

app/Models/PiggyBank.php

@@ -36,6 +36,8 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  * @property Carbon $targetdate
  * @property Carbon $startdate
  * @property string $targetamount
+ * @property int $id
+ * @property string $name
  *
  */
 class PiggyBank extends Model

app/Models/Transaction.php

@@ -25,6 +25,7 @@ namespace FireflyIII\Models;
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
@@ -252,18 +253,18 @@ class Transaction extends Model
 
     /**
      * @codeCoverageIgnore
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     * @return BelongsTo
      */
-    public function transactionCurrency()
+    public function transactionCurrency(): BelongsTo
     {
         return $this->belongsTo(TransactionCurrency::class);
     }
 
     /**
      * @codeCoverageIgnore
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     * @return BelongsTo
      */
-    public function transactionJournal()
+    public function transactionJournal(): BelongsTo
     {
         return $this->belongsTo(TransactionJournal::class);
     }

app/Models/TransactionCurrency.php

@@ -30,6 +30,7 @@ use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
  * Class TransactionCurrency.
  *
  * @property string $code
+ * @property string $symbol
  * @property int    $decimal_places
  *
  */