Various fixes and checks.

app/Api/V1/Requests/AttachmentRequest.php

@@ -25,6 +25,7 @@ namespace FireflyIII\Api\V1\Requests;
 
 use FireflyIII\Models\Bill;
 use FireflyIII\Models\ImportJob;
+use FireflyIII\Models\Transaction;
 use FireflyIII\Models\TransactionJournal;
 use FireflyIII\Rules\IsValidAttachmentModel;
 
@@ -72,7 +73,7 @@ class AttachmentRequest extends Request
                    str_replace('FireflyIII\\Models\\', '', Bill::class),
                    str_replace('FireflyIII\\Models\\', '', ImportJob::class),
                    str_replace('FireflyIII\\Models\\', '', TransactionJournal::class),
-                   str_replace('FireflyIII\\Models\\', '', ImportJob::class),
+                   str_replace('FireflyIII\\Models\\', '', Transaction::class),
                ]
         );
         $model  = $this->string('model');

app/Factory/AttachmentFactory.php

@@ -23,8 +23,11 @@ declare(strict_types=1);
 
 namespace FireflyIII\Factory;
 
+use FireflyIII\Exceptions\FireflyException;
 use FireflyIII\Models\Attachment;
 use FireflyIII\Models\Note;
+use FireflyIII\Models\Transaction;
+use FireflyIII\Models\TransactionJournal;
 use FireflyIII\User;
 use Log;
 
@@ -33,6 +36,9 @@ use Log;
  */
 class AttachmentFactory
 {
+    /** @var User */
+    private $user;
+
     /**
      * Constructor.
      */
@@ -42,22 +48,34 @@ class AttachmentFactory
             Log::warning(sprintf('%s should not be instantiated in the TEST environment!', \get_class($this)));
         }
     }
-    /** @var User */
-    private $user;
 
     /**
      * @param array $data
      *
      * @return Attachment|null
+     * @throws FireflyException
      */
     public function create(array $data): ?Attachment
     {
+        // append if necessary.
+        $model = false === strpos('FireflyIII', $data['model']) ? 'FireflyIII\\Models\\' . $data['model'] : $data['model'];
+
+        if (Transaction::class === $model) {
+            /** @var Transaction $transaction */
+            $transaction = $this->user->transactions()->find((int)$data['model_id']);
+            if (null === $transaction) {
+                throw new FireflyException('Unexpectedly could not find transaction');
+            }
+            $data['model_id'] = $transaction->transaction_journal_id;
+            $model            = TransactionJournal::class;
+        }
+
         // create attachment:
         $attachment = Attachment::create(
             [
                 'user_id'         => $this->user->id,
                 'attachable_id'   => $data['model_id'],
-                'attachable_type' => $data['model'],
+                'attachable_type' => $model,
                 'md5'             => '',
                 'filename'        => $data['filename'],
                 'title'           => '' === $data['title'] ? null : $data['title'],

app/Http/Controllers/BillController.php

@@ -252,8 +252,8 @@ class BillController extends Controller
                 // simply fire off all rules?
                 /** @var TransactionMatcher $matcher */
                 $matcher = app(TransactionMatcher::class);
-                $matcher->setLimit(100000); // large upper limit
-                $matcher->setRange(100000); // large upper limit
+                $matcher->setSearchLimit(100000); // large upper limit
+                $matcher->setTriggeredLimit(100000); // large upper limit
                 $matcher->setRule($rule);
                 $matchingTransactions = $matcher->findTransactionsByRule();
                 $total                += $matchingTransactions->count();

app/Repositories/ImportJob/ImportJobRepository.php

@@ -154,6 +154,16 @@ class ImportJobRepository implements ImportJobRepositoryInterface
         throw new FireflyException('Could not create an import job with a unique key after 30 tries.');
     }
 
+    /**
+     * @param int $jobId
+     *
+     * @return ImportJob|null
+     */
+    public function find(int $jobId): ?ImportJob
+    {
+        return $this->user->importJobs()->find($jobId);
+    }
+
     /**
      * @param string $key
      *

app/Repositories/ImportJob/ImportJobRepositoryInterface.php

@@ -69,6 +69,13 @@ interface ImportJobRepositoryInterface
      */
     public function create(string $importProvider): ImportJob;
 
+    /**
+     * @param int $jobId
+     *
+     * @return ImportJob|null
+     */
+    public function find(int $jobId): ?ImportJob;
+
     /**
      * @param string $key
      *

app/Rules/IsValidAttachmentModel.php

@@ -24,8 +24,14 @@ declare(strict_types=1);
 namespace FireflyIII\Rules;
 
 
+use FireflyIII\Models\Bill;
+use FireflyIII\Models\ImportJob;
+use FireflyIII\Models\Transaction;
 use FireflyIII\Models\TransactionJournal;
+use FireflyIII\Repositories\Bill\BillRepositoryInterface;
+use FireflyIII\Repositories\ImportJob\ImportJobRepositoryInterface;
 use FireflyIII\Repositories\Journal\JournalRepositoryInterface;
+use FireflyIII\User;
 use Illuminate\Contracts\Validation\Rule;
 
 /**
@@ -71,7 +77,40 @@ class IsValidAttachmentModel implements Rule
         if (!auth()->check()) {
             return false;
         }
+        $model = false === strpos('FireflyIII', $this->model) ? 'FireflyIII\\Models\\' . $this->model : $this->model;
 
+        if (Bill::class === $model) {
+            /** @var BillRepositoryInterface $repository */
+            $repository = app(BillRepositoryInterface::class);
+            /** @var User $user */
+            $user = auth()->user();
+            $repository->setUser($user);
+            $bill = $repository->find((int)$value);
+
+            return null !== $bill;
+        }
+
+        if (ImportJob::class === $model) {
+            /** @var ImportJobRepositoryInterface $repository */
+            $repository = app(ImportJobRepositoryInterface::class);
+            /** @var User $user */
+            $user = auth()->user();
+            $repository->setUser($user);
+            $importJob = $repository->find((int)$value);
+
+            return null !== $importJob;
+        }
+
+        if (Transaction::class === $model) {
+            /** @var JournalRepositoryInterface $repository */
+            $repository = app(JournalRepositoryInterface::class);
+            /** @var User $user */
+            $user = auth()->user();
+            $repository->setUser($user);
+            $transaction = $repository->findTransaction((int)$value);
+
+            return null !== $transaction;
+        }
 
         if (TransactionJournal::class === $this->model) {
             $repository = app(JournalRepositoryInterface::class);

app/Transformers/TransactionLinkTransformer.php

@@ -65,7 +65,7 @@ class TransactionLinkTransformer extends AbstractTransformer
             'updated_at' => $link->updated_at->toAtomString(),
             'inward_id'  => $link->source_id,
             'outward_id' => $link->destination_id,
-            'notes'      => $notes,
+            'notes'      => '' === $notes ? null : $notes,
             'links'      => [
                 [
                     'rel' => 'self',