Added SettingsGetInformationField as a standard method

src/Socialbox/Classes/StandardMethods/SettingsGetInformationField.php

@@ -0,0 +1,48 @@
+<?php
+
+    namespace Socialbox\Classes\StandardMethods;
+
+    use Socialbox\Abstracts\Method;
+    use Socialbox\Enums\StandardError;
+    use Socialbox\Enums\Types\InformationFieldName;
+    use Socialbox\Exceptions\DatabaseOperationException;
+    use Socialbox\Exceptions\StandardException;
+    use Socialbox\Interfaces\SerializableInterface;
+    use Socialbox\Managers\PeerInformationManager;
+    use Socialbox\Objects\ClientRequest;
+    use Socialbox\Objects\RpcRequest;
+
+    class SettingsGetInformationField extends Method
+    {
+        /**
+         * @inheritDoc
+         */
+        public static function execute(ClientRequest $request, RpcRequest $rpcRequest): ?SerializableInterface
+        {
+            if(!$rpcRequest->containsParameter('field'))
+            {
+                return $rpcRequest->produceError(StandardError::RPC_INVALID_ARGUMENTS, 'The required field parameter is missing');
+            }
+            $fieldName = InformationFieldName::tryFrom(strtoupper($rpcRequest->getParameter('field')));
+            if($fieldName === null)
+            {
+                return $rpcRequest->produceError(StandardError::RPC_INVALID_ARGUMENTS, 'The provided field parameter is invalid');
+            }
+
+            try
+            {
+                $fieldRecord = PeerInformationManager::getField($request->getPeer(), $fieldName);
+            }
+            catch(DatabaseOperationException $e)
+            {
+                throw new StandardException('Failed to retrieve existing information fields', StandardError::INTERNAL_SERVER_ERROR, $e);
+            }
+
+            if($fieldRecord === null)
+            {
+                return $rpcRequest->produceError(StandardError::NOT_FOUND, 'The requested field does not exist');
+            }
+
+            return $rpcRequest->produceResponse($fieldRecord->toInformationFieldState());
+        }
+    }