Feat: Fügt eine Verknüpfung der Transaktionen mit den Konten hinzu

lib/Entities/transaction.g.dart

@@ -45,6 +45,12 @@ const TransactionSchema = CollectionSchema(
       name: r'recurringTransaction',
       target: r'RecurringTransaction',
       single: true,
+    ),
+    r'account': LinkSchema(
+      id: -8467990729867616553,
+      name: r'account',
+      target: r'Account',
+      single: true,
     )
   },
   embeddedSchemas: {},
@@ -112,7 +118,7 @@ Id _transactionGetId(Transaction object) {
 }
 
 List<IsarLinkBase<dynamic>> _transactionGetLinks(Transaction object) {
-  return [object.recurringTransaction];
+  return [object.recurringTransaction, object.account];
 }
 
 void _transactionAttach(IsarCollection<dynamic> col, Id id,
@@ -120,6 +126,7 @@ void _transactionAttach(IsarCollection<dynamic> col, Id id,
   object.id = id;
   object.recurringTransaction.attach(col,
       col.isar.collection<RecurringTransaction>(), r'recurringTransaction', id);
+  object.account.attach(col, col.isar.collection<Account>(), r'account', id);
 }
 
 extension TransactionQueryWhereSort
@@ -538,6 +545,20 @@ on QueryBuilder<Transaction, Transaction, QFilterCondition> {
       return query.linkLength(r'recurringTransaction', 0, true, 0, true);
     });
   }
+
+  QueryBuilder<Transaction, Transaction, QAfterFilterCondition> account(
+      FilterQuery<Account> q) {
+    return QueryBuilder.apply(this, (query) {
+      return query.link(q, r'account');
+    });
+  }
+
+  QueryBuilder<Transaction, Transaction, QAfterFilterCondition>
+  accountIsNull() {
+    return QueryBuilder.apply(this, (query) {
+      return query.linkLength(r'account', 0, true, 0, true);
+    });
+  }
 }
 
 extension TransactionQuerySortBy