A new endpoint that allows you to search for transfers.

app/Rules/IsTransferAccount.php

@@ -0,0 +1,73 @@
+<?php
+/**
+ * IsTransferAccount.php
+ * Copyright (c) 2019 thegrumpydictator@gmail.com
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace FireflyIII\Rules;
+
+
+use FireflyIII\Models\TransactionType;
+use FireflyIII\Validation\AccountValidator;
+use Illuminate\Contracts\Validation\Rule;
+use Log;
+
+/**
+ * Class IsTransferAccount
+ */
+class IsTransferAccount implements Rule
+{
+    /**
+     * Get the validation error message.
+     *
+     * @return string|array
+     */
+    public function message(): string
+    {
+        return (string)trans('validation.not_transfer_account');
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param string $attribute
+     * @param mixed  $value
+     *
+     * @return bool
+     */
+    public function passes($attribute, $value): bool
+    {
+        Log::debug(sprintf('Now in %s(%s)', __METHOD__, $value));
+        /** @var AccountValidator $validator */
+        $validator = app(AccountValidator::class);
+        $validator->setTransactionType(TransactionType::TRANSFER);
+        $validator->setUser(auth()->user());
+
+        $validAccount = $validator->validateSource(null, (string)$value);
+        if (true === $validAccount) {
+            Log::debug('Found account based on name. Return true.');
+
+            // found by name, use repos to return.
+            return true;
+        }
+        $validAccount = $validator->validateSource((int)$value, null);
+        Log::debug(sprintf('Search by id (%d), result is %s.', (int)$value, var_export($validAccount, true)));
+
+        return !(false === $validAccount);
+    }
+}