diff --git a/lib/Model/Attachment.php b/lib/Model/Attachment.php
index c4d98595924..2a0977c76ca 100644
--- a/lib/Model/Attachment.php
+++ b/lib/Model/Attachment.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setRoomId(int $roomId)
@@ -54,12 +55,12 @@ class Attachment extends Entity {
 	protected $actorId;
 
 	public function __construct() {
-		$this->addType('roomId', 'int');
-		$this->addType('messageId', 'int');
-		$this->addType('messageTime', 'int');
-		$this->addType('objectType', 'string');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
+		$this->addType('roomId', Types::BIGINT);
+		$this->addType('messageId', Types::BIGINT);
+		$this->addType('messageTime', Types::BIGINT);
+		$this->addType('objectType', Types::STRING);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
 	}
 
 	/**
diff --git a/lib/Model/Attendee.php b/lib/Model/Attendee.php
index 74527b32632..02ce13bcae2 100644
--- a/lib/Model/Attendee.php
+++ b/lib/Model/Attendee.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setRoomId(int $roomId)
@@ -127,30 +128,30 @@ class Attendee extends Entity {
 	protected int $lastAttendeeActivity = 0;
 
 	public function __construct() {
-		$this->addType('roomId', 'int');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
-		$this->addType('displayName', 'string');
-		$this->addType('pin', 'string');
-		$this->addType('participantType', 'int');
-		$this->addType('favorite', 'bool');
-		$this->addType('archived', 'bool');
-		$this->addType('notificationLevel', 'int');
-		$this->addType('notificationCalls', 'int');
-		$this->addType('lastJoinedCall', 'int');
-		$this->addType('lastReadMessage', 'int');
-		$this->addType('lastMentionMessage', 'int');
-		$this->addType('lastMentionDirect', 'int');
-		$this->addType('readPrivacy', 'int');
-		$this->addType('permissions', 'int');
-		$this->addType('accessToken', 'string');
-		$this->addType('remoteId', 'string');
-		$this->addType('invitedCloudId', 'string');
-		$this->addType('phoneNumber', 'string');
-		$this->addType('callId', 'string');
-		$this->addType('state', 'int');
-		$this->addType('unreadMessages', 'int');
-		$this->addType('lastAttendeeActivity', 'int');
+		$this->addType('roomId', Types::BIGINT);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
+		$this->addType('displayName', Types::STRING);
+		$this->addType('pin', Types::STRING);
+		$this->addType('participantType', Types::SMALLINT);
+		$this->addType('favorite', Types::BOOLEAN);
+		$this->addType('archived', Types::BOOLEAN);
+		$this->addType('notificationLevel', Types::INTEGER);
+		$this->addType('notificationCalls', Types::INTEGER);
+		$this->addType('lastJoinedCall', Types::INTEGER);
+		$this->addType('lastReadMessage', Types::INTEGER);
+		$this->addType('lastMentionMessage', Types::INTEGER);
+		$this->addType('lastMentionDirect', Types::BIGINT);
+		$this->addType('readPrivacy', Types::SMALLINT);
+		$this->addType('permissions', Types::INTEGER);
+		$this->addType('accessToken', Types::STRING);
+		$this->addType('remoteId', Types::STRING);
+		$this->addType('invitedCloudId', Types::STRING);
+		$this->addType('phoneNumber', Types::STRING);
+		$this->addType('callId', Types::STRING);
+		$this->addType('state', Types::SMALLINT);
+		$this->addType('unreadMessages', Types::BIGINT);
+		$this->addType('lastAttendeeActivity', Types::BIGINT);
 	}
 
 	public function getDisplayName(): string {
diff --git a/lib/Model/Ban.php b/lib/Model/Ban.php
index 6feaa19cb02..0159aa891be 100644
--- a/lib/Model/Ban.php
+++ b/lib/Model/Ban.php
@@ -10,6 +10,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @psalm-import-type TalkBan from ResponseDefinitions
@@ -49,16 +50,16 @@ class Ban extends Entity implements \JsonSerializable {
 	protected ?string $internalNote = null;
 
 	public function __construct() {
-		$this->addType('id', 'int');
-		$this->addType('moderatorActorType', 'string');
-		$this->addType('moderatorActorId', 'string');
-		$this->addType('moderatorDisplayname', 'string');
-		$this->addType('roomId', 'int');
-		$this->addType('bannedActorType', 'string');
-		$this->addType('bannedActorId', 'string');
-		$this->addType('bannedDisplayname', 'string');
-		$this->addType('bannedTime', 'datetime');
-		$this->addType('internalNote', 'string');
+		$this->addType('id', Types::BIGINT);
+		$this->addType('moderatorActorType', Types::STRING);
+		$this->addType('moderatorActorId', Types::STRING);
+		$this->addType('moderatorDisplayname', Types::STRING);
+		$this->addType('roomId', Types::BIGINT);
+		$this->addType('bannedActorType', Types::STRING);
+		$this->addType('bannedActorId', Types::STRING);
+		$this->addType('bannedDisplayname', Types::STRING);
+		$this->addType('bannedTime', Types::DATETIME);
+		$this->addType('internalNote', Types::TEXT);
 	}
 
 	/**
diff --git a/lib/Model/BotConversation.php b/lib/Model/BotConversation.php
index 958173f9155..83e34ef8266 100644
--- a/lib/Model/BotConversation.php
+++ b/lib/Model/BotConversation.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setBotId(int $botId)
@@ -24,9 +25,9 @@ class BotConversation extends Entity implements \JsonSerializable {
 	protected int $state = Bot::STATE_DISABLED;
 
 	public function __construct() {
-		$this->addType('bot_id', 'int');
-		$this->addType('token', 'string');
-		$this->addType('state', 'int');
+		$this->addType('bot_id', Types::BIGINT);
+		$this->addType('token', Types::STRING);
+		$this->addType('state', Types::SMALLINT);
 	}
 
 	public function jsonSerialize(): array {
diff --git a/lib/Model/BotServer.php b/lib/Model/BotServer.php
index dd57fa6512e..1bebf557c93 100644
--- a/lib/Model/BotServer.php
+++ b/lib/Model/BotServer.php
@@ -10,6 +10,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setName(string $name)
@@ -48,16 +49,16 @@ class BotServer extends Entity implements \JsonSerializable {
 	protected int $features = Bot::FEATURE_NONE;
 
 	public function __construct() {
-		$this->addType('name', 'string');
-		$this->addType('url', 'string');
-		$this->addType('url_hash', 'string');
-		$this->addType('description', 'string');
-		$this->addType('secret', 'string');
-		$this->addType('error_count', 'int');
-		$this->addType('last_error_date', 'datetime');
-		$this->addType('last_error_message', 'string');
-		$this->addType('state', 'int');
-		$this->addType('features', 'int');
+		$this->addType('name', Types::STRING);
+		$this->addType('url', Types::STRING);
+		$this->addType('url_hash', Types::STRING);
+		$this->addType('description', Types::STRING);
+		$this->addType('secret', Types::STRING);
+		$this->addType('error_count', Types::BIGINT);
+		$this->addType('last_error_date', Types::DATETIME);
+		$this->addType('last_error_message', Types::STRING);
+		$this->addType('state', Types::SMALLINT);
+		$this->addType('features', Types::INTEGER);
 	}
 
 	/**
diff --git a/lib/Model/Consent.php b/lib/Model/Consent.php
index 26009a2e6e4..16ce6c3a48b 100644
--- a/lib/Model/Consent.php
+++ b/lib/Model/Consent.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setToken(string $token)
@@ -27,10 +28,10 @@ class Consent extends Entity implements \JsonSerializable {
 	protected ?\DateTime $dateTime = null;
 
 	public function __construct() {
-		$this->addType('token', 'string');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
-		$this->addType('dateTime', 'datetime');
+		$this->addType('token', Types::STRING);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
+		$this->addType('dateTime', Types::DATETIME);
 	}
 
 	public function jsonSerialize(): array {
diff --git a/lib/Model/Invitation.php b/lib/Model/Invitation.php
index 77456b25537..07534720ec3 100644
--- a/lib/Model/Invitation.php
+++ b/lib/Model/Invitation.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setUserId(string $userId)
@@ -48,16 +49,16 @@ class Invitation extends Entity implements \JsonSerializable {
 	protected string $localCloudId = '';
 
 	public function __construct() {
-		$this->addType('userId', 'string');
-		$this->addType('state', 'int');
-		$this->addType('localRoomId', 'int');
-		$this->addType('accessToken', 'string');
-		$this->addType('remoteServerUrl', 'string');
-		$this->addType('remoteToken', 'string');
-		$this->addType('remoteAttendeeId', 'int');
-		$this->addType('inviterCloudId', 'string');
-		$this->addType('inviterDisplayName', 'string');
-		$this->addType('localCloudId', 'string');
+		$this->addType('userId', Types::STRING);
+		$this->addType('state', Types::SMALLINT);
+		$this->addType('localRoomId', Types::BIGINT);
+		$this->addType('accessToken', Types::STRING);
+		$this->addType('remoteServerUrl', Types::STRING);
+		$this->addType('remoteToken', Types::STRING);
+		$this->addType('remoteAttendeeId', Types::BIGINT);
+		$this->addType('inviterCloudId', Types::STRING);
+		$this->addType('inviterDisplayName', Types::STRING);
+		$this->addType('localCloudId', Types::STRING);
 	}
 
 	/**
diff --git a/lib/Model/Poll.php b/lib/Model/Poll.php
index d53c0b05d45..7a1cc8f4a96 100644
--- a/lib/Model/Poll.php
+++ b/lib/Model/Poll.php
@@ -11,6 +11,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @psalm-method int<1, max> getId()
@@ -70,17 +71,17 @@ class Poll extends Entity {
 	protected int $maxVotes = self::MAX_VOTES_UNLIMITED;
 
 	public function __construct() {
-		$this->addType('roomId', 'int');
-		$this->addType('question', 'string');
-		$this->addType('options', 'string');
-		$this->addType('votes', 'string');
-		$this->addType('numVoters', 'int');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
-		$this->addType('displayName', 'string');
-		$this->addType('status', 'int');
-		$this->addType('resultMode', 'int');
-		$this->addType('maxVotes', 'int');
+		$this->addType('roomId', Types::BIGINT);
+		$this->addType('question', Types::TEXT);
+		$this->addType('options', Types::TEXT);
+		$this->addType('votes', Types::TEXT);
+		$this->addType('numVoters', Types::BIGINT);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
+		$this->addType('displayName', Types::STRING);
+		$this->addType('status', Types::SMALLINT);
+		$this->addType('resultMode', Types::SMALLINT);
+		$this->addType('maxVotes', Types::INTEGER);
 	}
 
 	/**
diff --git a/lib/Model/ProxyCacheMessage.php b/lib/Model/ProxyCacheMessage.php
index 2fd58ee665a..42683a6c1cb 100644
--- a/lib/Model/ProxyCacheMessage.php
+++ b/lib/Model/ProxyCacheMessage.php
@@ -11,6 +11,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setLocalToken(string $localToken)
@@ -66,20 +67,20 @@ class ProxyCacheMessage extends Entity implements \JsonSerializable {
 	protected ?string $metaData = null;
 
 	public function __construct() {
-		$this->addType('localToken', 'string');
-		$this->addType('remoteServerUrl', 'string');
-		$this->addType('remoteToken', 'string');
-		$this->addType('remoteMessageId', 'int');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
-		$this->addType('actorDisplayName', 'string');
-		$this->addType('messageType', 'string');
-		$this->addType('systemMessage', 'string');
-		$this->addType('expirationDatetime', 'datetime');
-		$this->addType('message', 'string');
-		$this->addType('messageParameters', 'string');
-		$this->addType('creationDatetime', 'datetime');
-		$this->addType('metaData', 'string');
+		$this->addType('localToken', Types::STRING);
+		$this->addType('remoteServerUrl', Types::STRING);
+		$this->addType('remoteToken', Types::STRING);
+		$this->addType('remoteMessageId', Types::BIGINT);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
+		$this->addType('actorDisplayName', Types::STRING);
+		$this->addType('messageType', Types::STRING);
+		$this->addType('systemMessage', Types::STRING);
+		$this->addType('expirationDatetime', Types::DATETIME);
+		$this->addType('message', Types::TEXT);
+		$this->addType('messageParameters', Types::TEXT);
+		$this->addType('creationDatetime', Types::DATETIME);
+		$this->addType('metaData', Types::TEXT);
 	}
 
 	public function getParsedMessageParameters(): array {
diff --git a/lib/Model/Reminder.php b/lib/Model/Reminder.php
index f910446316d..25326cff5c9 100644
--- a/lib/Model/Reminder.php
+++ b/lib/Model/Reminder.php
@@ -10,6 +10,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setUserId(string $userId)
@@ -30,10 +31,10 @@ class Reminder extends Entity implements \JsonSerializable {
 	protected ?\DateTime $dateTime = null;
 
 	public function __construct() {
-		$this->addType('userId', 'string');
-		$this->addType('token', 'string');
-		$this->addType('messageId', 'int');
-		$this->addType('dateTime', 'datetime');
+		$this->addType('userId', Types::STRING);
+		$this->addType('token', Types::STRING);
+		$this->addType('messageId', Types::BIGINT);
+		$this->addType('dateTime', Types::DATETIME);
 	}
 
 	/**
diff --git a/lib/Model/RetryNotification.php b/lib/Model/RetryNotification.php
index a80b216826b..2e2eab008fd 100644
--- a/lib/Model/RetryNotification.php
+++ b/lib/Model/RetryNotification.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setRemoteServer(string $remoteServer)
@@ -38,12 +39,12 @@ class RetryNotification extends Entity {
 	protected string $notification = '';
 
 	public function __construct() {
-		$this->addType('remoteServer', 'string');
-		$this->addType('numAttempts', 'int');
-		$this->addType('nextRetry', 'datetime');
-		$this->addType('notificationType', 'string');
-		$this->addType('resourceType', 'string');
-		$this->addType('providerId', 'string');
-		$this->addType('notification', 'string');
+		$this->addType('remoteServer', Types::STRING);
+		$this->addType('numAttempts', Types::INTEGER);
+		$this->addType('nextRetry', Types::DATETIME);
+		$this->addType('notificationType', Types::STRING);
+		$this->addType('resourceType', Types::STRING);
+		$this->addType('providerId', Types::STRING);
+		$this->addType('notification', Types::TEXT);
 	}
 }
diff --git a/lib/Model/Session.php b/lib/Model/Session.php
index f5eb517363a..4a7a66b146a 100644
--- a/lib/Model/Session.php
+++ b/lib/Model/Session.php
@@ -9,6 +9,7 @@
 namespace OCA\Talk\Model;
 
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * A session is the "I'm online in this conversation" state of Talk, you get one
@@ -49,11 +50,11 @@ class Session extends Entity {
 	protected $state;
 
 	public function __construct() {
-		$this->addType('attendeeId', 'int');
-		$this->addType('sessionId', 'string');
-		$this->addType('inCall', 'int');
-		$this->addType('lastPing', 'int');
-		$this->addType('state', 'int');
+		$this->addType('attendeeId', Types::BIGINT);
+		$this->addType('sessionId', Types::STRING);
+		$this->addType('inCall', Types::INTEGER);
+		$this->addType('lastPing', Types::INTEGER);
+		$this->addType('state', Types::SMALLINT);
 	}
 
 	/**
diff --git a/lib/Model/Vote.php b/lib/Model/Vote.php
index 87f0dbdaefd..7398d68dbdd 100644
--- a/lib/Model/Vote.php
+++ b/lib/Model/Vote.php
@@ -11,6 +11,7 @@
 
 use OCA\Talk\ResponseDefinitions;
 use OCP\AppFramework\Db\Entity;
+use OCP\DB\Types;
 
 /**
  * @method void setPollId(int $pollId)
@@ -37,12 +38,12 @@ class Vote extends Entity {
 	protected ?int $optionId = null;
 
 	public function __construct() {
-		$this->addType('pollId', 'int');
-		$this->addType('roomId', 'int');
-		$this->addType('actorType', 'string');
-		$this->addType('actorId', 'string');
-		$this->addType('displayName', 'string');
-		$this->addType('optionId', 'int');
+		$this->addType('pollId', Types::BIGINT);
+		$this->addType('roomId', Types::BIGINT);
+		$this->addType('actorType', Types::STRING);
+		$this->addType('actorId', Types::STRING);
+		$this->addType('displayName', Types::STRING);
+		$this->addType('optionId', Types::INTEGER);
 	}
 
 	/**