From a83d788ae9f95569a625865eb4448568d868346d Mon Sep 17 00:00:00 2001
From: =?utf8?q?Joshua=20R=C3=BCsweg?= <josh@bastelstu.be>
Date: Sat, 29 Jul 2017 16:08:24 +0200
Subject: [PATCH] Add special trophies

See #2315
---
 com.woltlab.wcf/templates/messageSidebar.tpl  | 10 ++++
 com.woltlab.wcf/templates/settings.tpl        | 30 +++++++++++
 com.woltlab.wcf/templates/user.tpl            |  9 ++++
 .../templates/userProfilePreview.tpl          | 10 ++++
 com.woltlab.wcf/userGroupOption.xml           |  9 ++++
 .../lib/acp/form/TrophyEditForm.class.php     |  6 +++
 .../lib/data/trophy/TrophyAction.class.php    | 22 +++++++-
 .../files/lib/data/user/UserProfile.class.php | 49 +++++++++++++++++
 .../lib/data/user/UserProfileAction.class.php | 30 +++++++++++
 .../user/trophy/UserTrophyAction.class.php    | 30 ++++++++++-
 .../files/lib/form/SettingsForm.class.php     | 51 +++++++++++++++++-
 wcfsetup/install/files/style/ui/trophy.scss   | 52 +++++++++++++++++++
 wcfsetup/install/lang/de.xml                  |  7 +++
 wcfsetup/install/lang/en.xml                  |  7 +++
 wcfsetup/setup/db/install.sql                 | 10 ++++
 15 files changed, 328 insertions(+), 4 deletions(-)

diff --git a/com.woltlab.wcf/templates/messageSidebar.tpl b/com.woltlab.wcf/templates/messageSidebar.tpl
index 004553e22c..ded7ae5baf 100644
--- a/com.woltlab.wcf/templates/messageSidebar.tpl
+++ b/com.woltlab.wcf/templates/messageSidebar.tpl
@@ -44,6 +44,16 @@
 					<div class="userRank">{@$userProfile->getRank()->getImage()}</div>
 				{/if}
 			{/if}
+
+			{if MODULE_TROPHY && $__wcf->session->getPermission('user.profile.trophy.canSeeTrophies') && ($userProfile->isAccessible('canViewTrophies') || $userProfile->userID == $__wcf->session->userID) && $userProfile->getSpecialTrophies()|count}
+				<div class="specialTrophyContainer">
+					<ul>
+						{foreach from=$userProfile->getSpecialTrophies() item=trophy}
+							<li><a href="{@$trophy->getLink()}">{@$trophy->renderTrophy(32)}</a></li>
+						{/foreach}
+					</ul>
+				</div>
+			{/if}
 		{else}
 			<div class="messageAuthorContainer">
 				{if $userProfile->username}
diff --git a/com.woltlab.wcf/templates/settings.tpl b/com.woltlab.wcf/templates/settings.tpl
index c807aaa292..b8ee04b883 100644
--- a/com.woltlab.wcf/templates/settings.tpl
+++ b/com.woltlab.wcf/templates/settings.tpl
@@ -82,6 +82,36 @@
 				{event name='styleFields'}
 			</section>
 		{/if}
+		
+		{if MODULE_TROPHY && $__wcf->getSession()->getPermission('user.profile.trophy.maxUserSpecialTrophies') > 0 && $availableTrophies|count}
+			<section class="section">
+				<h2 class="sectionTitle">{lang}wcf.user.trophy.trophies{/lang}</h2>
+				<dl{if $errorField == 'specialTrophies'} class="formError"{/if}>
+					<dt>{lang}wcf.user.trophy.specialTrophies{/lang}</dt>
+					<dd>
+						<ul class="specialTrophiesUl">
+							{if $__wcf->getSession()->getPermission('user.profile.trophy.maxUserSpecialTrophies') == 1}
+								{foreach from=$availableTrophies item=trophy}
+									<li><label><input type="radio" name="specialTrophies[]" value="{$trophy->getObjectID()}"{if $trophy->getObjectID()|in_array:$specialTrophies} checked{/if}> {@$trophy->renderTrophy(32)} <span>{$trophy->getTitle()}</span></label></li>
+								{/foreach}
+							{else}
+								{foreach from=$availableTrophies item=trophy}
+									<li><label><input type="checkbox" name="specialTrophies[]" value="{$trophy->getObjectID()}"{if $trophy->getObjectID()|in_array:$specialTrophies} checked{/if}> {@$trophy->renderTrophy(32)} <span>{$trophy->getTitle()}</span></label></li>
+								{/foreach}
+							{/if}
+						</ul>
+						{if $errorField == 'specialTrophies'}
+							<small class="innerError">
+								{lang}wcf.user.trophy.specialTrophies.error.{$errorType}{/lang}
+							</small>
+						{/if}
+						<small>{lang}wcf.user.trophy.specialTrophies.description{/lang}</small>
+					</dd>
+				</dl>
+
+				{event name='trophyFields'}
+			</section>
+		{/if}
 	{/if}
 	
 	{if !$optionTree|empty}
diff --git a/com.woltlab.wcf/templates/user.tpl b/com.woltlab.wcf/templates/user.tpl
index 40b2f50785..2dac794e66 100644
--- a/com.woltlab.wcf/templates/user.tpl
+++ b/com.woltlab.wcf/templates/user.tpl
@@ -172,6 +172,15 @@
 			</h1>
 			
 			<div class="contentHeaderDescription">
+				{if MODULE_TROPHY && $__wcf->session->getPermission('user.profile.trophy.canSeeTrophies') && ($user->isAccessible('canViewTrophies') || $user->userID == $__wcf->session->userID) && $user->getSpecialTrophies()|count}
+					<div class="specialTrophyUserContainer">
+						<ul>
+							{foreach from=$user->getSpecialTrophies() item=trophy}
+								<li><a href="{@$trophy->getLink()}">{@$trophy->renderTrophy(32)}</a></li>
+							{/foreach}
+						</ul>
+					</div>
+				{/if}
 				<ul class="inlineList commaSeparated">
 					{if !$user->isProtected()}
 						{if $user->isVisibleOption('gender') && $user->gender}<li>{lang}wcf.user.gender.{if $user->gender == 1}male{else}female{/if}{/lang}</li>{/if}
diff --git a/com.woltlab.wcf/templates/userProfilePreview.tpl b/com.woltlab.wcf/templates/userProfilePreview.tpl
index 9366018be7..a115d09221 100644
--- a/com.woltlab.wcf/templates/userProfilePreview.tpl
+++ b/com.woltlab.wcf/templates/userProfilePreview.tpl
@@ -10,6 +10,16 @@
 		
 		<div class="userInformation">
 			{include file='userInformation'}
+
+			{if MODULE_TROPHY && $__wcf->session->getPermission('user.profile.trophy.canSeeTrophies') && ($user->isAccessible('canViewTrophies') || $user->userID == $__wcf->session->userID) && $user->getSpecialTrophies()|count}
+				<div class="specialTrophyUserContainer">
+					<ul>
+						{foreach from=$user->getSpecialTrophies() item=trophy}
+							<li><a href="{@$trophy->getLink()}">{@$trophy->renderTrophy(32)}</a></li>
+						{/foreach}
+					</ul>
+				</div>
+			{/if}
 			
 			{if $user->canViewOnlineStatus() && $user->getLastActivityTime()}
 				<dl class="plain inlineDataList">
diff --git a/com.woltlab.wcf/userGroupOption.xml b/com.woltlab.wcf/userGroupOption.xml
index b67b60dd9e..c24c47a514 100644
--- a/com.woltlab.wcf/userGroupOption.xml
+++ b/com.woltlab.wcf/userGroupOption.xml
@@ -740,6 +740,15 @@ png</defaultvalue>
 				<defaultvalue>1</defaultvalue>
 				<options>module_trophy</options>
 			</option>
+			<option name="user.profile.trophy.maxUserSpecialTrophies">
+				<categoryname>user.profile.trophy</categoryname>
+				<optiontype>integer</optiontype>
+				<minvalue>0</minvalue>
+				<maxvalue>5</maxvalue>
+				<defaultvalue>3</defaultvalue>
+				<usersonly>1</usersonly>
+				<options>module_trophy</options>
+			</option>
 			<!-- /user.profile -->
 			
 			<option name="user.page.canAddComment">
diff --git a/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
index 18e36b4bda..b6bf4e2277 100644
--- a/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TrophyEditForm.class.php
@@ -185,6 +185,12 @@ class TrophyEditForm extends TrophyAddForm {
 			ConditionHandler::getInstance()->deleteConditions(TrophyConditionHandler::CONDITION_DEFINITION_NAME, [$this->trophy->trophyID]);
 		}
 		
+		// reset special trophies, if trophy is disabled 
+		if ($this->isDisabled) {
+			WCF::getDB()->prepareStatement("DELETE FROM wcf". WCF_N ."_user_special_trophy WHERE trophyID = ?")->execute([$this->trophyID]);
+			UserStorageHandler::getInstance()->resetAll('specialTrophies');
+		}
+		
 		$this->saved();
 		
 		// show success message
diff --git a/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php b/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
index 3531ce4534..be7ab5ed4e 100644
--- a/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
+++ b/wcfsetup/install/files/lib/data/trophy/TrophyAction.class.php
@@ -8,6 +8,7 @@ use wcf\system\exception\UserInputException;
 use wcf\system\image\ImageHandler;
 use wcf\system\upload\TrophyImageUploadFileValidationStrategy;
 use wcf\system\upload\UploadFile;
+use wcf\system\user\storage\UserStorageHandler;
 use wcf\system\WCF;
 
 /**
@@ -18,6 +19,9 @@ use wcf\system\WCF;
  * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
  * @package	WoltLabSuite\Core\Data\Trophy
  * @since	3.1
+ *
+ * @method	TrophyEditor[]		getObjects()
+ * @method	TrophyEditor		getSingleObject()
  */
 class TrophyAction extends AbstractDatabaseObjectAction implements IToggleAction, IUploadAction {
 	/**
@@ -43,6 +47,17 @@ class TrophyAction extends AbstractDatabaseObjectAction implements IToggleAction
 		return $trophy;
 	}
 	
+	/**
+	 * @inheritDoc
+	 */
+	public function delete() {
+		$returnValues = parent::delete();
+		
+		UserStorageHandler::getInstance()->resetAll('specialTrophies');
+		
+		return $returnValues;
+	}
+	
 	/**
 	 * @inheritDoc
 	 */
@@ -63,9 +78,14 @@ class TrophyAction extends AbstractDatabaseObjectAction implements IToggleAction
 	 */
 	public function toggle() {
 		foreach ($this->getObjects() as $trophy) {
-			/** @var TrophyEditor $trophy */
 			$trophy->update(['isDisabled' => $trophy->isDisabled ? 0 : 1]);
+			
+			if (!$trophy->isDisabled) {
+				WCF::getDB()->prepareStatement("DELETE FROM wcf". WCF_N ."_user_special_trophy WHERE trophyID = ?")->execute([$trophy->trophyID]);
+			}
 		}
+		
+		UserStorageHandler::getInstance()->resetAll('specialTrophies');
 	}
 	
 	/**
diff --git a/wcfsetup/install/files/lib/data/user/UserProfile.class.php b/wcfsetup/install/files/lib/data/user/UserProfile.class.php
index 502f78a382..497ec97487 100644
--- a/wcfsetup/install/files/lib/data/user/UserProfile.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserProfile.class.php
@@ -1,5 +1,7 @@
 <?php
 namespace wcf\data\user;
+use wcf\data\trophy\Trophy;
+use wcf\data\trophy\TrophyCache;
 use wcf\data\user\avatar\DefaultAvatar;
 use wcf\data\user\avatar\Gravatar;
 use wcf\data\user\avatar\IUserAvatar;
@@ -12,6 +14,7 @@ use wcf\data\DatabaseObjectDecorator;
 use wcf\data\ITitledLinkObject;
 use wcf\system\cache\builder\UserGroupPermissionCacheBuilder;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
+use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\event\EventHandler;
 use wcf\system\user\signature\SignatureCache;
 use wcf\system\user\storage\UserStorageHandler;
@@ -316,6 +319,52 @@ class UserProfile extends DatabaseObjectDecorator implements ITitledLinkObject {
 		return $this->currentLocation;
 	}
 	
+	/**
+	 * Returns the special trophies for the user. 
+	 *
+	 * @return	Trophy[]
+	 */
+	public function getSpecialTrophies() {
+		$specialTrophies = UserStorageHandler::getInstance()->getField('specialTrophies', $this->userID);
+		
+		if ($specialTrophies === null) {
+			// load special trophies for the user 
+			$specialTrophies = [];
+			
+			$statement = WCF::getDB()->prepareStatement("SELECT trophyID FROM wcf".WCF_N."_user_special_trophy WHERE userID = ?");
+			$statement->execute([$this->userID]); 
+			
+			while ($trophyID = $statement->fetchColumn()) {
+				$specialTrophies[] = $trophyID; 
+			}
+			
+			UserStorageHandler::getInstance()->update($this->userID, 'specialTrophies', serialize($specialTrophies));
+		}
+		else {
+			$specialTrophies = unserialize($specialTrophies);
+		}
+		
+		// check if the user has the permission to store these number of trophies,
+		// otherwise, delete the last trophies
+		if (count($specialTrophies) > $this->getPermission('user.profile.trophy.maxUserSpecialTrophies')) {
+			$trophyDeleteIDs = [];
+			while (count($specialTrophies) > $this->getPermission('user.profile.trophy.maxUserSpecialTrophies')) {
+				$trophyDeleteIDs[] = array_pop($specialTrophies);
+			}
+			
+			$conditionBuilder = new PreparedStatementConditionBuilder();
+			$conditionBuilder->add('userID = ?', [$this->userID]);
+			$conditionBuilder->add('trophyID IN (?)', [$trophyDeleteIDs]);
+			
+			// reset some special trophies 
+			WCF::getDB()->prepareStatement("DELETE FROM wcf".WCF_N."_user_special_trophy ".$conditionBuilder)->execute($conditionBuilder->getParameters());
+			
+			UserStorageHandler::getInstance()->update($this->userID, 'specialTrophies', serialize($specialTrophies));
+		}
+		
+		return TrophyCache::getInstance()->getTrophiesByID($specialTrophies); 
+	}
+	
 	/**
 	 * Returns the last activity time.
 	 * 
diff --git a/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php b/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
index 16b7ae320e..ee680ab977 100644
--- a/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserProfileAction.class.php
@@ -423,6 +423,36 @@ class UserProfileAction extends UserAction {
 		}
 	}
 	
+	/**
+	 * Updates the special trophies.
+	 */
+	public function updateSpecialTrophies() {
+		if (empty($this->objects)) {
+			$this->readObjects();
+		}
+		
+		foreach ($this->getObjects() as $user) {
+			WCF::getDB()->beginTransaction();
+			
+			WCF::getDB()->prepareStatement("DELETE FROM wcf".WCF_N."_user_special_trophy WHERE userID = ?")->execute([$user->userID]);
+			
+			if (!empty($this->parameters['trophyIDs'])) {
+				$statement = WCF::getDB()->prepareStatement("INSERT INTO wcf".WCF_N."_user_special_trophy (userID, trophyID) VALUES (?, ?)");
+				
+				foreach ($this->parameters['trophyIDs'] as $trophyID) {
+					$statement->execute([
+						$user->userID, 
+						$trophyID
+					]);
+				}
+			}
+			
+			WCF::getDB()->commitTransaction();
+			
+			UserStorageHandler::getInstance()->reset([$user->userID], 'specialTrophies');
+		}
+	}
+	
 	/**
 	 * Returns the user option handler object.
 	 * 
diff --git a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
index 28f7db6c81..2d90101499 100644
--- a/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/trophy/UserTrophyAction.class.php
@@ -3,10 +3,12 @@ namespace wcf\data\user\trophy;
 use wcf\data\user\UserAction;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\cache\runtime\UserProfileRuntimeCache;
+use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\PermissionDeniedException;
 use wcf\system\user\notification\object\UserTrophyNotificationObject;
 use wcf\system\user\notification\UserNotificationHandler;
+use wcf\system\user\storage\UserStorageHandler;
 use wcf\system\WCF;
 
 /**
@@ -17,6 +19,9 @@ use wcf\system\WCF;
  * @license	GNU Lesser General Public License <http://opensource.org/licenses/lgpl-license.php>
  * @package	WoltLabSuite\Core\Data\User\Trophy
  * @since	3.1
+ *
+ * @method	UserTrophyEditor[]		getObjects()
+ * @method	UserTrophyEditor		getSingleObject()
  */
 class UserTrophyAction extends AbstractDatabaseObjectAction {
 	/**
@@ -66,12 +71,33 @@ class UserTrophyAction extends AbstractDatabaseObjectAction {
 	 * @inheritDoc
 	 */
 	public function delete() {
+		$trophyIDs = $userIDs = []; 
+		foreach ($this->getObjects() as $object) {
+			$trophyIDs[] = $object->trophyID; 
+			$userIDs[] = $object->userID; 
+		}
+		
 		$returnValues = parent::delete();
 		
-		$updateUserTrophies = [];
+		// update user special trophies trophies
+		$userTrophies = UserTrophyList::getUserTrophies($userIDs);
+		
+		foreach ($userTrophies as $userID => $trophies) {
+			$userTrophyIDs = [];
+			foreach ($trophies as $trophy) {
+				$userTrophyIDs[] = $trophy->trophyID;
+			}
+			
+			$conditionBuilder = new PreparedStatementConditionBuilder(); 
+			$conditionBuilder->add('trophyID NOT IN (?)', [array_unique($userTrophyIDs)]); 
+			$conditionBuilder->add('userID = ?', [$userID]);
+			WCF::getDB()->prepareStatement("DELETE FROM wcf". WCF_N ."_user_special_trophy ". $conditionBuilder)->execute($conditionBuilder->getParameters());
+			
+			UserStorageHandler::getInstance()->reset([$userID], 'specialTrophies');
+		}
 		
 		/** @var $object UserTrophyEditor */
-		foreach ($this->objects as $object) {
+		foreach ($this->getObjects() as $object) {
 			if (!isset($updateUserTrophies[$object->userID])) $updateUserTrophies[$object->userID] = 0; 
 			$updateUserTrophies[$object->userID]--;
 		}
diff --git a/wcfsetup/install/files/lib/form/SettingsForm.class.php b/wcfsetup/install/files/lib/form/SettingsForm.class.php
index 4f897bf08d..b3d4a6e2a4 100644
--- a/wcfsetup/install/files/lib/form/SettingsForm.class.php
+++ b/wcfsetup/install/files/lib/form/SettingsForm.class.php
@@ -2,8 +2,13 @@
 namespace wcf\form;
 use wcf\data\language\Language;
 use wcf\data\style\Style;
+use wcf\data\trophy\Trophy;
+use wcf\data\trophy\TrophyCache;
 use wcf\data\user\option\category\UserOptionCategory;
+use wcf\data\user\trophy\UserTrophyList;
 use wcf\data\user\UserAction;
+use wcf\data\user\UserProfile;
+use wcf\data\user\UserProfileAction;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\UserInputException;
 use wcf\system\language\LanguageFactory;
@@ -63,6 +68,12 @@ class SettingsForm extends AbstractForm {
 	 */
 	public $availableStyles = [];
 	
+	/**
+	 * list of available trophies
+	 * @var	Trophy[]
+	 */
+	public $availableTrophies = [];
+	
 	/**
 	 * list of content language ids
 	 * @var	integer[]
@@ -81,6 +92,12 @@ class SettingsForm extends AbstractForm {
 	 */
 	public $styleID = 0;
 	
+	/**
+	 * special trophies
+	 * @var integer[]
+	 */
+	public $specialTrophies = [];
+	
 	/**
 	 * @inheritDoc
 	 */
@@ -103,6 +120,13 @@ class SettingsForm extends AbstractForm {
 			$this->availableContentLanguages = LanguageFactory::getInstance()->getContentLanguages();
 			$this->availableLanguages = LanguageFactory::getInstance()->getLanguages();
 			$this->availableStyles = StyleHandler::getInstance()->getAvailableStyles();
+			
+			// read available trophies
+			$trophyIDs = array_unique(array_map(function ($userTrophy) {
+				return $userTrophy->trophyID;
+			}, UserTrophyList::getUserTrophies([WCF::getUser()->userID])[WCF::getUser()->userID]));
+			
+			$this->availableTrophies = TrophyCache::getInstance()->getTrophiesByID($trophyIDs);
 		}
 	}
 	
@@ -119,6 +143,7 @@ class SettingsForm extends AbstractForm {
 			if (isset($_POST['contentLanguageIDs']) && is_array($_POST['contentLanguageIDs'])) $this->contentLanguageIDs = ArrayUtil::toIntegerArray($_POST['contentLanguageIDs']);
 			if (isset($_POST['languageID'])) $this->languageID = intval($_POST['languageID']);
 			if (isset($_POST['styleID'])) $this->styleID = intval($_POST['styleID']);
+			if (isset($_POST['specialTrophies'])) $this->specialTrophies = ArrayUtil::toIntegerArray($_POST['specialTrophies']);
 		}
 	}
 	
@@ -157,6 +182,19 @@ class SettingsForm extends AbstractForm {
 			if (!isset($this->availableStyles[$this->styleID])) {
 				$this->styleID = 0;
 			}
+			
+			// validate special trophies
+			if (count($this->specialTrophies) > WCF::getSession()->getPermission('user.profile.trophy.maxUserSpecialTrophies')) {
+				throw new UserInputException('specialTrophies', 'tooMuch');
+			}
+			
+			foreach ($this->specialTrophies as $trophyID) {
+				if (!in_array($trophyID, array_map(function ($trophy) {
+					return $trophy->trophyID; 
+				}, $this->availableTrophies))) {
+					throw new UserInputException('specialTrophies' , 'invalid');
+				}
+			}
 		}
 	}
 	
@@ -175,6 +213,10 @@ class SettingsForm extends AbstractForm {
 					$this->languageID = WCF::getUser()->languageID;
 				}
 				$this->styleID = WCF::getUser()->styleID;
+				
+				$this->specialTrophies = array_unique(array_map(function ($trophy) {
+					return $trophy->trophyID;
+				}, (new UserProfile(WCF::getUser()))->getSpecialTrophies()));
 			}
 		}
 	}
@@ -203,6 +245,11 @@ class SettingsForm extends AbstractForm {
 		if ($this->category == 'general') {
 			// reset user language ids cache
 			UserStorageHandler::getInstance()->reset([WCF::getUser()->userID], 'languageIDs');
+			
+			$userProfileAction = new UserProfileAction([WCF::getUser()->userID], 'updateSpecialTrophies', [
+				'trophyIDs' => $this->specialTrophies
+			]);
+			$userProfileAction->executeAction();
 		}
 		$this->saved();
 		
@@ -225,9 +272,11 @@ class SettingsForm extends AbstractForm {
 				'availableContentLanguages' => $this->availableContentLanguages,
 				'availableLanguages' => $this->availableLanguages,
 				'availableStyles' => $this->availableStyles,
+				'availableTrophies' => $this->availableTrophies,
 				'contentLanguageIDs' => $this->contentLanguageIDs,
 				'languageID' => $this->languageID,
-				'styleID' => $this->styleID
+				'styleID' => $this->styleID,
+				'specialTrophies' => $this->specialTrophies
 			]);
 		}
 	}
diff --git a/wcfsetup/install/files/style/ui/trophy.scss b/wcfsetup/install/files/style/ui/trophy.scss
index 6458ff7045..7f4f382e02 100644
--- a/wcfsetup/install/files/style/ui/trophy.scss
+++ b/wcfsetup/install/files/style/ui/trophy.scss
@@ -41,3 +41,55 @@
 		font-size: 81px;
 	}
 }
+
+.specialTrophiesUl {
+	display: flex;
+	flex-wrap: wrap;
+	
+	> li {
+		width: 300px; 
+		padding-bottom: 5px;
+		
+		> label {
+			display: flex; 
+			align-items: center;
+			
+			> span:last-child {
+				margin-left: 5px;
+			}
+		}
+	}
+}
+
+.specialTrophyContainer > ul {
+	display: flex;
+	margin-top: 5px;
+	justify-content: center;
+	
+	> li:not(:last-child) {
+		margin-right: 5px;
+	}
+}
+
+
+@include screen-sm-down {
+	.specialTrophyContainer {
+		display: none;
+	}
+}
+
+.specialTrophyUserContainer > ul {
+	display: flex;
+	margin-top: -15px;
+	margin-bottom: 5px;
+	
+	> li:not(:last-child) {
+		margin-right: 5px;
+	}
+}
+
+
+.userProfilePreview .specialTrophyUserContainer > ul {
+	margin-top: 5px;
+	margin-bottom: 5px;
+}
diff --git a/wcfsetup/install/lang/de.xml b/wcfsetup/install/lang/de.xml
index a89327bd4f..b8b727c227 100644
--- a/wcfsetup/install/lang/de.xml
+++ b/wcfsetup/install/lang/de.xml
@@ -645,6 +645,8 @@
 		<item name="wcf.acp.group.option.admin.trophy.canAwardTrophy"><![CDATA[Kann Trophäen verleihen]]></item>
 		<item name="wcf.acp.group.option.category.user.profile.trophy"><![CDATA[Trophäen]]></item>
 		<item name="wcf.acp.group.option.user.profile.trophy.canSeeTrophies"><![CDATA[Kann Trophäen sehen]]></item>
+		<item name="wcf.acp.group.option.user.profile.trophy.maxUserSpecialTrophies"><![CDATA[Maximale Anzahl an besonderen Trophäen]]></item> <!-- @TODO: find a better name? -->
+		<item name="wcf.acp.group.option.user.profile.trophy.maxUserSpecialTrophies.description"><![CDATA[Besondere Trophäen können vom Benutzer individuell ausgewählt werden und werden in der Message-Sidebar und im Benutzerprofil angezeigt.]]></item>
 	</category>
 	
 	<category name="wcf.acp.index">
@@ -3663,6 +3665,11 @@ Die E-Mail-Adresse des neuen Benutzers lautet: {@$user->email}
 		<item name="wcf.user.trophy.showTrophies"><![CDATA[Trophäen von {$user->username} anzeigen]]></item>
 		<item name="wcf.user.trophy.noTrophies"><![CDATA[Der Benutzer hat noch keine Trophäen]]></item>
 		<item name="wcf.user.trophy.dialogTitle"><![CDATA[Trophäen von {$username}]]></item>
+		<item name="wcf.user.trophy.trophies"><![CDATA[Trophäen]]></item>
+		<item name="wcf.user.trophy.specialTrophies"><![CDATA[Besondere Trophäen]]></item>
+		<item name="wcf.user.trophy.specialTrophies.description"><![CDATA[{if LANGUAGE_USE_INFORMAL_VARIANT}Wähle{else}Wählen Sie{/if} hier ihre besonderen Trophäen aus, welche im Profil und in der Nachrichten-Seitenleiste angezeigt werden.]]></item>
+		<item name="wcf.user.trophy.specialTrophies.error.tooMuch"><![CDATA[{if LANGUAGE_USE_INFORMAL_VARIANT}Du kannst{else}Sie können{/if} maximal {#$__wcf->session->getPermission('user.profile.trophy.maxUserSpecialTrophies')} Trophäen auswählen.]]></item>
+		<item name="wcf.user.trophy.specialTrophies.error.invalid"><![CDATA[Die angegebenen Trophäen sind invalid.]]></item>
 	</category>
 	
 	<category name="wcf.acp.trophy">
diff --git a/wcfsetup/install/lang/en.xml b/wcfsetup/install/lang/en.xml
index d076dd5a6c..bfc9913dbe 100644
--- a/wcfsetup/install/lang/en.xml
+++ b/wcfsetup/install/lang/en.xml
@@ -628,6 +628,8 @@
 		<item name="wcf.acp.group.option.admin.trophy.canAwardTrophy"><![CDATA[Can award trophies]]></item>
 		<item name="wcf.acp.group.option.category.user.profile.trophy"><![CDATA[Trophies]]></item>
 		<item name="wcf.acp.group.option.user.profile.trophy.canSeeTrophies"><![CDATA[Can see trophies]]></item>
+		<item name="wcf.acp.group.option.user.profile.trophy.maxUserSpecialTrophies"><![CDATA[Maximum number of special trophies]]></item> <!-- @TODO: find a better name? -->
+		<item name="wcf.acp.group.option.user.profile.trophy.maxUserSpecialTrophies.description"><![CDATA[Special trophies can be individually selected by the user and displayed in the message sidebar and the user profile.]]></item>
 	</category>
 	
 	<category name="wcf.acp.index">
@@ -3654,6 +3656,11 @@ Open the link below to access the user profile:
 		<item name="wcf.user.trophy.showTrophies"><![CDATA[Display Trophies of {$user->username}]]></item>
 		<item name="wcf.user.trophy.noTrophies"><![CDATA[The user has no trophies]]></item>
 		<item name="wcf.user.trophy.dialogTitle"><![CDATA[Trophies of {$username}]]></item>
+		<item name="wcf.user.trophy.trophies"><![CDATA[Trophies]]></item>
+		<item name="wcf.user.trophy.specialTrophies"><![CDATA[Special Trophies]]></item>
+		<item name="wcf.user.trophy.specialTrophies.description"><![CDATA[{if LANGUAGE_USE_INFORMAL_VARIANT}Wähle{else}Wählen Sie{/if} hier ihre besonderen Trophäen aus, welche im Profil und in der Nachrichten-Seitenleiste angezeigt werden.]]></item>
+		<item name="wcf.user.trophy.specialTrophies.error.tooMuch"><![CDATA[You can choose a maximum of {#$__wcf->session->getPermission('user.profile.trophy.maxUserSpecialTrophies')} trophies.]]></item>
+		<item name="wcf.user.trophy.specialTrophies.error.invalid"><![CDATA[The selected trophies are invalid.]]></item>
 	</category>
 	
 	<category name="wcf.acp.trophy">
diff --git a/wcfsetup/setup/db/install.sql b/wcfsetup/setup/db/install.sql
index 89d305fff5..33485d48b5 100644
--- a/wcfsetup/setup/db/install.sql
+++ b/wcfsetup/setup/db/install.sql
@@ -1545,6 +1545,13 @@ CREATE TABLE wcf1_user_ignore (
 	UNIQUE KEY (userID, ignoreUserID)
 );
 
+DROP TABLE IF EXISTS wcf1_user_special_trophy;
+CREATE TABLE wcf1_user_special_trophy(
+	trophyID INT(10) NOT NULL,
+	userID INT(10) NOT NULL,
+	UNIQUE KEY (trophyID, userID)
+);
+
 DROP TABLE IF EXISTS wcf1_user_trophy;
 CREATE TABLE wcf1_user_trophy(
 	userTrophyID INT(10) NOT NULL AUTO_INCREMENT PRIMARY KEY,
@@ -2048,6 +2055,9 @@ ALTER TABLE wcf1_user_profile_visitor ADD FOREIGN KEY (userID) REFERENCES wcf1_u
 ALTER TABLE wcf1_user_object_watch ADD FOREIGN KEY (userID) REFERENCES wcf1_user (userID) ON DELETE CASCADE;
 ALTER TABLE wcf1_user_object_watch ADD FOREIGN KEY (objectTypeID) REFERENCES wcf1_object_type (objectTypeID) ON DELETE CASCADE;
 
+ALTER TABLE wcf1_user_special_trophy ADD FOREIGN KEY (userID) REFERENCES wcf1_user (userID) ON DELETE CASCADE;
+ALTER TABLE wcf1_user_special_trophy ADD FOREIGN KEY (trophyID) REFERENCES wcf1_trophy (trophyID) ON DELETE CASCADE;
+
 ALTER TABLE wcf1_message_embedded_object ADD FOREIGN KEY (messageObjectTypeID) REFERENCES wcf1_object_type (objectTypeID) ON DELETE CASCADE;
 ALTER TABLE wcf1_message_embedded_object ADD FOREIGN KEY (embeddedObjectTypeID) REFERENCES wcf1_object_type (objectTypeID) ON DELETE CASCADE;
 
-- 
2.20.1