X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=WEB-INF%2Flib%2FttUser.class.php;h=a40a5fda1eedc4a8ef41e9ba17ae16333460dde4;hb=040c6516659e15f360159859b783e3722e86f370;hp=2511ecfb0eddc731d0734ec1b055f4d97b7b34fc;hpb=c2b4a52bc12c6ee6204fd03d1d1b2534b7249554;p=timetracker.git

diff --git a/WEB-INF/lib/ttUser.class.php b/WEB-INF/lib/ttUser.class.php
index 2511ecfb..a40a5fda 100644
--- a/WEB-INF/lib/ttUser.class.php
+++ b/WEB-INF/lib/ttUser.class.php
@@ -26,17 +26,29 @@
 // | https://www.anuko.com/time_tracker/credits.htm
 // +----------------------------------------------------------------------+
 
+import('ttConfigHelper');
+import('ttGroupHelper');
+import('ttBehalfUser');
+import('ttGroup');
+import('form.Form');
+import('form.ActionForm');
+
 class ttUser {
   var $login = null;            // User login.
   var $name = null;             // User name.
   var $id = null;               // User id.
+  var $org_id = null;           // Organization id.
   var $group_id = null;         // Group id.
   var $role_id = null;          // Role id.
   var $role_name = null;        // Role name.
   var $rank = null;             // User role rank.
   var $client_id = null;        // Client id for client user role.
+  var $quota_percent = 100.0;   // Time quota percent for quotas plugin.
   var $behalf_id = null;        // User id, on behalf of whom we are working.
+  var $behalf_group_id = null;  // Group id, on behalf of which we are working.
   var $behalf_name = null;      // User name, on behalf of whom we are working.
+  var $group_name = null;       // Group name.
+  var $behalf_group_name = null;// Group name, on behalf of which we are working.
   var $email = null;            // User email.
   var $lang = null;             // Language.
   var $decimal_mark = null;     // Decimal separator.
@@ -51,19 +63,26 @@ class ttUser {
   var $punch_mode = 0;          // Whether punch mode is enabled for user.
   var $allow_overlap = 0;       // Whether to allow overlapping time entries.
   var $future_entries = 0;      // Whether to allow creating future entries.
-  var $uncompleted_indicators = 0; // Uncompleted time entry indicators (show nowhere or on users page).
   var $bcc_email = null;        // Bcc email.
   var $allow_ip = null;         // Specification from where user is allowed access.
+  var $password_complexity = null; // Password complexity example.
   var $currency = null;         // Currency.
   var $plugins = null;          // Comma-separated list of enabled plugins.
+
+  // Refactoring ongoing. Towards using helper instead of config string?
   var $config = null;           // Comma-separated list of miscellaneous config options.
-  var $team = null;             // Team name.
-  var $custom_logo = 0;         // Whether to use a custom logo for team.
+  var $configHelper = null;     // An instance of ttConfigHelper class.
+
+  var $custom_logo = 0;         // Whether to use a custom logo for group.
   var $lock_spec = null;        // Cron specification for record locking.
+  var $holidays = null;         // Holidays specification.
   var $workday_minutes = 480;   // Number of work minutes in a regular day.
   var $rights = array();        // An array of user rights such as 'track_own_time', etc.
   var $is_client = false;       // Whether user is a client as determined by missing 'track_own_time' right.
 
+  var $behalfUser = null;       // A ttBehalfUser instance with on behalf user attributes.
+  var $behalfGroup = null;      // A ttGroup instance with on behalf group attributes.
+
   // Constructor.
   function __construct($login, $id = null) {
     if (!$login && !$id) {
@@ -73,11 +92,11 @@ class ttUser {
 
     $mdb2 = getConnection();
 
-    $sql = "SELECT u.id, u.login, u.name, u.group_id, u.role_id, r.rank, r.name as role_name, r.rights, u.client_id, u.email, g.name as group_name,
-      g.currency, g.lang, g.decimal_mark, g.date_format, g.time_format, g.week_start,
-      g.tracking_mode, g.project_required, g.task_required, g.record_type,
-      g.bcc_email, g.allow_ip, g.plugins, g.config, g.lock_spec, g.workday_minutes, g.custom_logo
-      FROM tt_users u LEFT JOIN tt_groups g ON (u.group_id = g.id) LEFT JOIN tt_roles r on (r.id = u.role_id) WHERE ";
+    $sql = "SELECT u.id, u.login, u.name, u.group_id, u.role_id, r.rank, r.name as role_name, r.rights, u.client_id,".
+      " u.quota_percent, u.email, g.org_id, g.name as group_name, g.currency, g.lang, g.decimal_mark, g.date_format,".
+      " g.time_format, g.week_start, g.tracking_mode, g.project_required, g.task_required, g.record_type,".
+      " g.bcc_email, g.allow_ip, g.password_complexity, g.plugins, g.config, g.lock_spec, g.holidays, g.workday_minutes, g.custom_logo".
+      " FROM tt_users u LEFT JOIN tt_groups g ON (u.group_id = g.id) LEFT JOIN tt_roles r on (r.id = u.role_id) WHERE ";
     if ($id)
       $sql .= "u.id = $id";
     else
@@ -94,13 +113,15 @@ class ttUser {
       $this->login = $val['login'];
       $this->name = $val['name'];
       $this->id = $val['id'];
+      $this->org_id = $val['org_id'];
       $this->group_id = $val['group_id'];
       $this->role_id = $val['role_id'];
       $this->role_name = $val['role_name'];
       $this->rights = explode(',', $val['rights']);
-      $this->is_client = !in_array('track_own_time', $this->rights);
       $this->rank = $val['rank'];
       $this->client_id = $val['client_id'];
+      $this->is_client = $this->client_id && !in_array('track_own_time', $this->rights);
+      if ($val['quota_percent']) $this->quota_percent = $val['quota_percent'];
       $this->email = $val['email'];
       $this->lang = $val['lang'];
       $this->decimal_mark = $val['decimal_mark'];
@@ -113,58 +134,140 @@ class ttUser {
       $this->record_type = $val['record_type'];
       $this->bcc_email = $val['bcc_email'];
       $this->allow_ip = $val['allow_ip'];
-      $this->team = $val['group_name'];
+      $this->password_complexity = $val['password_complexity'];
+      $this->group_name = $val['group_name'];
       $this->currency = $val['currency'];
       $this->plugins = $val['plugins'];
       $this->lock_spec = $val['lock_spec'];
+      $this->holidays = $val['holidays'];
       $this->workday_minutes = $val['workday_minutes'];
       $this->custom_logo = $val['custom_logo'];
 
+      // TODO: refactor this.
       $this->config = $val['config'];
-      $config_array = explode(',', $this->config);
+      $this->configHelper = new ttConfigHelper($val['config']);
 
       // Set user config options.
-      $this->show_holidays = in_array('show_holidays', $config_array);
-      $this->punch_mode = in_array('punch_mode', $config_array);
-      $this->allow_overlap = in_array('allow_overlap', $config_array);
-      $this->future_entries = in_array('future_entries', $config_array);
-      $this->uncompleted_indicators = in_array('uncompleted_indicators', $config_array);
-
-      // Set "on behalf" id and name.
+      $this->show_holidays = $this->configHelper->getDefinedValue('show_holidays');
+      $this->punch_mode = $this->configHelper->getDefinedValue('punch_mode');
+      $this->allow_overlap = $this->configHelper->getDefinedValue('allow_overlap');
+      $this->future_entries = $this->configHelper->getDefinedValue('future_entries');
+      
+      // Set "on behalf" id and name (user).
       if (isset($_SESSION['behalf_id'])) {
-          $this->behalf_id = $_SESSION['behalf_id'];
-          $this->behalf_name = $_SESSION['behalf_name'];
+        $this->behalf_id = $_SESSION['behalf_id'];
+        $this->behalf_name = $_SESSION['behalf_name'];
+
+        $this->behalfUser = new ttBehalfUser($this->behalf_id, $this->org_id);
+      }
+      // Set "on behalf" id and name (group).
+      if (isset($_SESSION['behalf_group_id'])) {
+        $this->behalf_group_id = $_SESSION['behalf_group_id'];
+        $this->behalf_group_name = $_SESSION['behalf_group_name'];
+
+        $this->behalfGroup = new ttGroup($this->behalf_group_id, $this->org_id);
       }
     }
   }
 
-  // The getActiveUser returns user id on behalf of whom the current user is operating.
-  function getActiveUser() {
-    return ($this->behalf_id ? $this->behalf_id : $this->id);
+  // getUser returns user id on behalf of whom the current user is operating.
+  function getUser() {
+    return ($this->behalfUser ? $this->behalfUser->id : $this->id);
   }
 
-  // can - determines whether user has a right to do something.
-  function can($do_something) {
-    return in_array($do_something, $this->rights);
+  // getName returns user name on behalf of whom the current user is operating.
+  function getName() {
+    return ($this->behalfUser ? $this->behalfUser->name : $this->name);
+  }
+
+  // getQuotaPercent returns quota percent for active user.
+  function getQuotaPercent() {
+    return ($this->behalfUser ? $this->behalfUser->quota_percent : $this->quota_percent);
+  }
+
+  // The getGroup returns group id on behalf of which the current user is operating.
+  function getGroup() {
+    return ($this->behalfGroup ? $this->behalfGroup->id : $this->group_id);
+  }
+
+  // getDecimalMark returns decimal mark for active group.
+  function getDecimalMark() {
+    return ($this->behalfGroup ? $this->behalfGroup->decimal_mark : $this->decimal_mark);
+  }
+
+  // getDateFormat returns date format for active group.
+  function getDateFormat() {
+    return ($this->behalfGroup ? $this->behalfGroup->date_format : $this->date_format);
+  }
+
+  // getTimeFormat returns time format for active group.
+  function getTimeFormat() {
+    return ($this->behalfGroup ? $this->behalfGroup->time_format : $this->time_format);
+  }
+
+  // getWeekStart returns week start day for active group.
+  function getWeekStart() {
+    return ($this->behalfGroup ? $this->behalfGroup->week_start : $this->week_start);
   }
 
-  // isAdmin - determines whether current user is admin (has right_administer_site).
-  function isAdmin() {
-    return $this->can('administer_site');
+  // getTrackingMode returns tracking mode for active group.
+  function getTrackingMode() {
+    return ($this->behalfGroup ? $this->behalfGroup->tracking_mode : $this->tracking_mode);
   }
 
-  // isManager - determines whether current user is team manager.
-  // This is a legacy function that we are getting rid of by replacing with rights check.
-  function isManager() {
-    return $this->can('export_data'); // By default this is assigned to managers but not co-managers.
-                                      // Which is sufficient for now until we refactor all calls
-                                      // to this function and then remove it.
+  // getRecordType returns record type for active group.
+  function getRecordType() {
+    return ($this->behalfGroup ? $this->behalfGroup->record_type : $this->record_type);
   }
 
-  // isCoManager - determines whether current user is team comanager.
-  // This is a legacy function that we are getting rid of by replacing with rights check.
-  function isCoManager() {
-    return ($this->can('manage_users') && !$this->can('export_data'));
+  // getCurrency returns currency string for active group.
+  function getCurrency() {
+    return ($this->behalfGroup ? $this->behalfGroup->currency : $this->currency);
+  }
+
+  // getPlugins returns plugins string for active group.
+  function getPlugins() {
+    return ($this->behalfGroup ? $this->behalfGroup->plugins : $this->plugins);
+  }
+
+  // getLockSpec returns lock specification for active group.
+  function getLockSpec() {
+    return ($this->behalfGroup ? $this->behalfGroup->lock_spec : $this->lock_spec);
+  }
+
+  // getHolidays returns holidays specification for active group.
+  function getHolidays() {
+    return ($this->behalfGroup ? $this->behalfGroup->holidays : $this->holidays);
+  }
+
+  // getWorkdayMinutes returns workday_minutes for active group.
+  function getWorkdayMinutes() {
+    return ($this->behalfGroup ? $this->behalfGroup->workday_minutes : $this->workday_minutes);
+  }
+
+  // getConfig returns config string for active group.
+  function getConfig() {
+    return ($this->behalfGroup ? $this->behalfGroup->configHelper->getConfig() : $this->configHelper->getConfig());
+  }
+
+  // getConfigOption returns true if an option is defined for group.
+  // This helps us keeping a set of user attributes smaller.
+  // We determine whether the option is set only on pages that need to know.
+  // For example: confirm_save is used only on time and expense edit pages.
+  function getConfigOption($name) {
+    $config = new ttConfigHelper($this->getConfig());
+    return $config->getDefinedValue($name);
+  }
+
+  // getConfigInt retruns an integer value defined in a group, or false.
+  function getConfigInt($name, $defaultVal) {
+    $config = new ttConfigHelper($this->getConfig());
+    return $config->getIntValue($name, $defaultVal);
+  }
+
+  // can - determines whether user has a right to do something.
+  function can($do_something) {
+    return in_array($do_something, $this->rights);
   }
 
   // isClient - determines whether current user is a client.
@@ -172,30 +275,46 @@ class ttUser {
     return $this->is_client;
   }
 
-  // canManageTeam - determines whether current user is manager or co-manager.
-  // This is a legacy function that we are getting rid of by replacing with rights check.
-  function canManageTeam() {
-    return $this->can('manage_users'); // By default this is assigned to co-managers (an managers).
-                                       // Which is sufficient for now until we refactor all calls
-                                       // to this function and then remove it.
-  }
-
   // isPluginEnabled checks whether a plugin is enabled for user.
   function isPluginEnabled($plugin)
   {
-    return in_array($plugin, explode(',', $this->plugins));
+    return in_array($plugin, explode(',', $this->getPlugins()));
+  }
+
+  // isOptionEnabled checks whether a config option is enabled for user.
+  function isOptionEnabled($option)
+  {
+    return $this->behalfGroup ? $this->behalfGroup->configHelper->getDefinedValue($option) : $this->configHelper->getDefinedValue($option);
+  }
+
+  // setOption sets an option inside of ttConfigHelper instance.
+  // Note that it does not write to the database.
+  function setOption($option, $enable = true)
+  {
+    return $this->behalfGroup ? $this->behalfGroup->configHelper->setDefinedValue($option, $enable) : $this->configHelper->setDefinedValue($option, $enable);
   }
 
   // getAssignedProjects - returns an array of assigned projects.
-  function getAssignedProjects()
+  function getAssignedProjects($includeFiles = false)
   {
     $result = array();
     $mdb2 = getConnection();
 
+    $user_id = $this->getUser();
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
+    if ($includeFiles) {
+      $filePart = ', if(Sub1.entity_id is null, 0, 1) as has_files';
+      $fileJoin =  " left join (select distinct entity_id from tt_files".
+      " where entity_type = 'project' and group_id = $group_id and org_id = $org_id and status = 1) Sub1".
+      " on (p.id = Sub1.entity_id)";
+    }
+
     // Do a query with inner join to get assigned projects.
-    $sql = "select p.id, p.name, p.description, p.tasks, upb.rate from tt_projects p
-      inner join tt_user_project_binds upb on (upb.user_id = ".$this->getActiveUser()." and upb.project_id = p.id and upb.status = 1)
-      where p.group_id = $this->group_id and p.status = 1 order by p.name";
+    $sql = "select p.id, p.name, p.description, p.tasks, upb.rate $filePart from tt_projects p $fileJoin".
+      " inner join tt_user_project_binds upb on (upb.user_id = $user_id and upb.project_id = p.id and upb.status = 1)".
+      " where p.group_id = $group_id and p.org_id = $org_id and p.status = 1 order by p.name";
     $res = $mdb2->query($sql);
     if (!is_a($res, 'PEAR_Error')) {
       while ($val = $res->fetchRow()) {
@@ -225,8 +344,11 @@ class ttUser {
     $mdb2 = getConnection();
     $tasks = implode(',', $task_ids); // This is a comma-separated list of task ids.
 
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
     $sql = "select id, name, description from tt_tasks".
-      " where group_id = $this->group_id and status = 1 and id in ($tasks) order by name";
+      " where group_id = $group_id and org_id = $org_id and status = 1 and id in ($tasks) order by name";
     $res = $mdb2->query($sql);
     if (!is_a($res, 'PEAR_Error')) {
       while ($val = $res->fetchRow()) {
@@ -236,13 +358,43 @@ class ttUser {
     return $result;
   }
 
+  // getAssignedClients - returns an array of clients assigned to own projects.
+  function getAssignedClients()
+  {
+    // Start with projects;
+    $projects = $this->getAssignedProjects();
+    if (!$projects) return false;
+    $assigned_project_ids = array();
+    foreach($projects as $project) {
+      $assigned_project_ids[] = $project['id'];
+    }
+
+    $mdb2 = getConnection();
+
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
+    // Get active clients for group.
+    $clients = array();
+    $sql = "select id, name, address, projects from tt_clients where group_id = $group_id and org_id = $org_id and status = 1";
+    $res = $mdb2->query($sql);
+    if (!is_a($res, 'PEAR_Error')) {
+      while ($val = $res->fetchRow()) {
+        $client_project_ids = $val['projects'] ? explode(',', $val['projects']) : array();
+        if (array_intersect($assigned_project_ids, $client_project_ids))
+          $clients[] = $val; // Add client if one of user projects is a client project, too.
+      }
+    }
+    return $clients;
+  }
+
   // isDateLocked checks whether a specifc date is locked for modifications.
   function isDateLocked($date)
   {
     if (!$this->isPluginEnabled('lk'))
       return false; // Locking feature is disabled.
 
-    if (!$this->lock_spec)
+    if (!$this->getLockSpec())
       return false; // There is no lock specification.
 
     if (!$this->behalf_id && $this->can('override_own_date_lock'))
@@ -255,7 +407,7 @@ class ttUser {
     require_once(LIBRARY_DIR.'/tdcron/class.tdcron.entry.php');
 
     // Calculate the last occurrence of a lock.
-    $last = tdCron::getLastOccurrence($this->lock_spec, time());
+    $last = tdCron::getLastOccurrence($this->getLockSpec(), time());
     $lockdate = new DateAndTime(DB_DATEFORMAT, strftime('%Y-%m-%d', $last));
     if ($date->before($lockdate))
       return true;
@@ -277,14 +429,25 @@ class ttUser {
 
   // getUsers obtains users in a group, as specififed by options.
   function getUsers($options) {
-
     $mdb2 = getConnection();
 
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
     $skipClients = !isset($options['include_clients']);
     $includeSelf = isset($options['include_self']);
 
-    $select_part = 'select u.id, u.name';
-    if (isset($options['include_login'])) $select_part .= ', u.login';
+    $select_part = 'select u.id, u.group_id, u.name';
+    if (isset($options['include_login'])) {
+      $select_part .= ', u.login';
+      // Piggy-back on include_login to see if we must also include quota_percent.
+      $include_quota = $this->isPluginEnabled('mq');
+      if ($include_quota) {
+        $decimal_mark = $this->getDecimalMark();
+        $replaceDecimalMark = ('.' != $decimal_mark);
+        $select_part .= ', u.quota_percent';
+      }
+    }
     if (!isset($options['include_clients'])) $select_part .= ', r.rights';
     if (isset($options['include_role'])) $select_part .= ', r.name as role_name, r.rank';
 
@@ -292,9 +455,9 @@ class ttUser {
 
     $left_joins = null;
     if (isset($options['max_rank']) || $skipClients || isset($options['include_role']))
-        $left_joins .= ' left join tt_roles r on (u.role_id = r.id)';
+      $left_joins .= ' left join tt_roles r on (u.role_id = r.id)';
 
-    $where_part = " where u.group_id = $this->group_id";
+    $where_part = " where u.org_id = $org_id and u.group_id = $group_id";
     if (isset($options['status']))
       $where_part .= ' and u.status = '.(int)$options['status'];
     else
@@ -319,6 +482,14 @@ class ttUser {
         if ($isClient)
           continue; // Skip adding clients.
       }
+      if ($include_quota) {
+        $quota = $val['quota_percent'];
+        if (ttEndsWith($quota, '.00'))
+          $quota = substr($quota, 0, strlen($quota)-3); // Trim trailing ".00";
+        elseif ($replaceDecimalMark)
+          $quota = str_replace('.', $decimal_mark, $quota);
+        $val['quota_percent'] = $quota.'%';
+      }
       $user_list[] = $val;
     }
 
@@ -336,17 +507,90 @@ class ttUser {
     return $user_list;
   }
 
-  // getUser function is used to manage users in group and returns user details.
+  // getGroupsForDropdown obtains an array of groups to populate "Group" dropdown.
+  // It consists of:
+  //   - User home group.
+  //   - The entire stack of groups all the way down to current on behalf group.
+  //   - All immediate children of the current on behalf group.
+  // This allows user to navigate easily to home group, anything in between, and 1 level below.
+  function getGroupsForDropdown() {
+    $mdb2 = getConnection();
+
+    // Start with subgroups.
+    $groups = array();
+    $group_id = $this->getGroup();
+    $sql = "select id, name from tt_groups where org_id = $this->org_id and parent_id = $group_id and status = 1";
+    $res = $mdb2->query($sql);
+    if (!is_a($res, 'PEAR_Error')) {
+      while ($val = $res->fetchRow()) {
+        $groups[] = $val;
+      }
+    }
+
+    // Add current on behalf group to the beginning of array.
+    $selected_group_id = ($this->behalf_group_id ? $this->behalf_group_id : $this->group_id);
+    $selected_group_name = ($this->behalf_group_id ? $this->behalf_group_name : $this->group_name);
+    array_unshift($groups,  array('id'=>$selected_group_id,'name'=>$selected_group_name));
+
+    // Iterate all the way to the home group, starting with selected ("on behalf") group.
+    $current_group_id = $selected_group_id;
+    while ($current_group_id != $this->group_id) {
+      $sql = "select parent_id from tt_groups where org_id = $this->org_id and id = $current_group_id and status = 1";
+      $res = $mdb2->query($sql);
+      if (is_a($res, 'PEAR_Error')) return false;
+
+      $val = $res->fetchRow();
+      $parent_id = $val['parent_id'];
+      if ($parent_id) {
+        // Get parent group name.
+        $sql = "select name from tt_groups where org_id = $this->org_id and id = $parent_id and status = 1";
+        $res = $mdb2->query($sql);
+        if (is_a($res, 'PEAR_Error')) return false;
+        $val = $res->fetchRow();
+        if (!$val) return false;
+        array_unshift($groups, array('id'=>$parent_id,'name'=>$val['name']));
+        $current_group_id = $parent_id;
+      } else {
+        return false;
+      }
+    }
+    return $groups;
+  }
+
+  // getSubgroups obtains a list of immediate subgroups.
+  function getSubgroups($group_id = null) {
+    $mdb2 = getConnection();
+
+    if (!$group_id) $group_id = $this->getGroup();
+
+    $sql = "select id, name, description from tt_groups where org_id = $this->org_id".
+      " and parent_id = $group_id and status is not null order by upper(name)";
+    $res = $mdb2->query($sql);
+    if (!is_a($res, 'PEAR_Error')) {
+      while ($val = $res->fetchRow()) {
+        $groups[] = $val;
+      }
+    }
+    return $groups;
+  }
+
+  // getUserDetails function is used to manage users in group and returns user details.
   // At the moment, the function is used for user edits and deletes.
-  function getUser($user_id) {
+  function getUserDetails($user_id) {
     if (!$this->can('manage_users')) return false;
 
     $mdb2 = getConnection();
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
+    // Determine max rank. If we are searching in on behalf group
+    // then rank restriction does not apply.
+    $max_rank = $this->behalfGroup ? MAX_RANK : $this->rank;
 
-    $sql =  "select u.id, u.name, u.login, u.role_id, u.status, u.rate, u.email from tt_users u".
-            " left join tt_roles r on (u.role_id = r.id)".
-            " where u.id = $user_id and u.group_id = $this->group_id and u.status is not null".
-            " and (r.rank < $this->rank or (r.rank = $this->rank and u.id = $this->id))"; // Users with lesser roles or self.
+    $sql =  "select u.id, u.name, u.login, u.role_id, u.client_id, u.status, u.rate, u.quota_percent, u.email from tt_users u".
+      " left join tt_roles r on (u.role_id = r.id)".
+      " where u.id = $user_id and u.group_id = $group_id and u.org_id = $org_id and u.status is not null".
+      " and (r.rank < $max_rank or (r.rank = $max_rank and u.id = $this->id))"; // Users with lesser roles or self.
     $res = $mdb2->query($sql);
     if (!is_a($res, 'PEAR_Error')) {
       $val = $res->fetchRow();
@@ -356,13 +600,32 @@ class ttUser {
   }
 
   // checkBehalfId checks whether behalf_id is appropriate.
-  // On behalf user must be active and have lower rank.
+  // On behalf user must be active and have lower rank if the user is from home group,
+  // otherwise:
+  // - subgroup must ve valid;
+  // - user should be a member of it.
   function checkBehalfId() {
-    $options = array('status'=>ACTIVE,'max_rank'=>$this->rank-1);
-    $users = $this->getUsers($options);
-    foreach($users as $one_user) {
-      if ($one_user['id'] == $this->behalf_id)
-        return true;
+    if (!$this->behalfGroup) {
+      // Checking user from home group.
+      $options = array('status'=>ACTIVE,'max_rank'=>$this->rank-1);
+      $users = $this->getUsers($options);
+      foreach($users as $one_user) {
+        if ($one_user['id'] == $this->behalf_id)
+          return true;
+      }
+    } else {
+      // Checking user from a subgroup.
+      $group_id = $this->behalfGroup->id;
+      if (!$this->isSubgroupValid($group_id))
+        return false;
+
+      // So far, so good. Check user now.
+      $options = array('status'=>ACTIVE,'max_rank'=>MAX_RANK);
+      $users = $this->getUsers($options);
+      foreach($users as $one_user) {
+        if ($one_user['id'] == $this->behalf_id)
+          return true;
+      }
     }
     return false;
   }
@@ -373,8 +636,12 @@ class ttUser {
   // Needed for situations when user does not have do_own_something right.
   // Example: has view_charts but does not have view_own_charts.
   // In this case we still allow access to charts, but set behalf_id to someone else.
+  // Another example: working in a subgroup on behalf of someone else.
   function adjustBehalfId() {
-    $options = array('status'=>ACTIVE,'max_rank'=>$this->rank-1);
+    $rank = $this->getMaxRankForGroup($this->getGroup());
+
+    // Adjust to first found user in group.
+    $options = array('status'=>ACTIVE,'max_rank'=>$rank);
     $users = $this->getUsers($options);
     foreach($users as $one_user) {
       // Fake loop to access first element.
@@ -386,4 +653,266 @@ class ttUser {
     }
     return false;
   }
+
+  // updateGroup updates group information with new data.
+  function updateGroup($fields) {
+    $mdb2 = getConnection();
+
+    $group_id = $fields['group_id'];
+    if ($group_id && !$this->isGroupValid($group_id)) return false;
+    if (!$group_id) $group_id = $this->getGroup();
+
+    if (isset($fields['name'])) $name_part = ', name = '.$mdb2->quote($fields['name']);
+    if (isset($fields['description'])) $description_part = ', description = '.$mdb2->quote($fields['description']);
+    if (isset($fields['currency'])) $currency_part = ', currency = '.$mdb2->quote($fields['currency']);
+    if (isset($fields['lang'])) $lang_part = ', lang = '.$mdb2->quote($fields['lang']);
+    if (isset($fields['decimal_mark'])) $decimal_mark_part = ', decimal_mark = '.$mdb2->quote($fields['decimal_mark']);
+    if (isset($fields['date_format'])) $date_format_part = ', date_format = '.$mdb2->quote($fields['date_format']);
+    if (isset($fields['time_format'])) $time_format_part = ', time_format = '.$mdb2->quote($fields['time_format']);
+    if (isset($fields['week_start'])) $week_start_part = ', week_start = '.(int) $fields['week_start'];
+    if (isset($fields['tracking_mode'])) {
+      $tracking_mode_part = ', tracking_mode = '.(int) $fields['tracking_mode'];
+      $project_required_part = ' , project_required = '.(int) $fields['project_required'];
+      $task_required_part = ' , task_required = '.(int) $fields['task_required'];
+    }
+    if (isset($fields['record_type'])) $record_type_part = ', record_type = '.(int) $fields['record_type'];
+    if (isset($fields['bcc_email'])) $bcc_email_part = ', bcc_email = '.$mdb2->quote($fields['bcc_email']);
+    if (isset($fields['allow_ip'])) $allow_ip_part = ', allow_ip = '.$mdb2->quote($fields['allow_ip']);
+    if (isset($fields['plugins'])) $plugins_part = ', plugins = '.$mdb2->quote($fields['plugins']);
+    if (isset($fields['config'])) $config_part = ', config = '.$mdb2->quote($fields['config']);
+    if (isset($fields['lock_spec'])) $lock_spec_part = ', lock_spec = '.$mdb2->quote($fields['lock_spec']);
+    if (isset($fields['holidays'])) $holidays_part = ', holidays = '.$mdb2->quote($fields['holidays']);
+    if (isset($fields['workday_minutes'])) $workday_minutes_part = ', workday_minutes = '.$mdb2->quote($fields['workday_minutes']);
+    $modified_part = ', modified = now(), modified_ip = '.$mdb2->quote($_SERVER['REMOTE_ADDR']).', modified_by = '.$mdb2->quote($this->id);
+
+    $parts = trim($name_part.$description_part.$currency_part.$lang_part.$decimal_mark_part.$date_format_part.
+      $time_format_part.$week_start_part.$tracking_mode_part.$task_required_part.$project_required_part.$record_type_part.
+      $bcc_email_part.$allow_ip_part.$plugins_part.$config_part.$lock_spec_part.$holidays_part.$workday_minutes_part.$modified_part, ',');
+
+    $sql = "update tt_groups set $parts where id = $group_id and org_id = $this->org_id";
+    $affected = $mdb2->exec($sql);
+    if (is_a($affected, 'PEAR_Error')) return false;
+
+    return true;
+  }
+
+  // markUserDeleted marks a user in group as deleted.
+  function markUserDeleted($user_id) {
+    if (!$this->can('manage_users') || $this->id == $user_id)
+      return false;
+
+    // Make sure we operate on a legit user.
+    $user_details = $this->getUserDetails($user_id);
+    if (!$user_details) return false;
+
+    $mdb2 = getConnection();
+    $group_id = $this->getGroup();
+    $org_id = $this->org_id;
+
+    // Mark user to project binds as deleted.
+    $sql = "update tt_user_project_binds set status = NULL where user_id = $user_id".
+      " and group_id = $group_id and org_id = $org_id";
+    $affected = $mdb2->exec($sql);
+    if (is_a($affected, 'PEAR_Error'))
+      return false;
+
+    // Mark user favorite reports as deleted.
+    $sql = "update tt_fav_reports set status = NULL where user_id = $user_id".
+      " and group_id = $group_id and org_id = $org_id";
+    $affected = $mdb2->exec($sql);
+    if (is_a($affected, 'PEAR_Error'))
+      return false;
+
+    // Mark user as deleted.
+    $modified_part = ', modified = now(), modified_ip = '.$mdb2->quote($_SERVER['REMOTE_ADDR']).', modified_by = '.$mdb2->quote($this->id);
+    $sql = "update tt_users set status = null $modified_part where id = $user_id".
+      " and group_id = $group_id and org_id = $org_id";
+    $affected = $mdb2->exec($sql);
+    if (is_a($affected, 'PEAR_Error'))
+      return false;
+
+    return true;
+  }
+
+  // enablePlugin either enables or disables a specific plugin for group.
+  function enablePlugin($plugin, $enable = true)
+  {
+    if (!$this->can('manage_advanced_settings'))
+      return false; // Note: enablePlugin is currently only used on week_view.php.
+                    // So, it's not really a plugin we are enabling, but rather week view display options.
+                    // Therefore, a check for manage_advanced_settings, not manage_features.
+
+    $plugin_array = explode(',', $this->plugins);
+    if ($enable && !in_array($plugin, $plugin_array))
+      $plugin_array[] = $plugin; // Add plugin to array.
+
+    if (!$enable && in_array($plugin, $plugin_array)) {
+      $key = array_search($plugin, $plugin_array);
+      if ($key !== false)
+        unset($plugin_array[$key]); // Remove plugin from array.
+    }
+
+    $plugins = implode(',', $plugin_array);
+    if ($plugins != $this->plugins) {
+      if (!$this->updateGroup(array('plugins' => $plugins)))
+        return false;
+      $this->plugins = $plugins;
+    }
+
+    return true;
+  }
+
+  // isUserValid determines if a user is valid for on behalf work.
+  function isUserValid($user_id) {
+    if ($user_id == $this->id)
+      return true;
+    return ($this->getUserDetails($user_id) != null);
+  }
+
+  // isGroupValid determines if a group is valid for user.
+  function isGroupValid($group_id) {
+    if ($group_id == $this->group_id)
+      return true;
+    else
+      return $this->isSubgroupValid($group_id);
+  }
+
+  // isSubgroupValid determines if a subgroup is valid for user.
+  // A subgroup is valid if:
+  //   - user can manage_subgroups;
+  //   - subgroup is either a direct child of user group, or "on the path"
+  //   to it (grand-child, etc.).
+  function isSubgroupValid($subgroup_id) {
+    if (!$this->can('manage_subgroups')) return false; // User cannot manage subgroups.
+
+    $current_group_id = $subgroup_id;
+    while ($parent_group_id = ttGroupHelper::getParentGroup($current_group_id)) {
+      if ($parent_group_id == $this->group_id) {
+        return true; // Found it.
+      }
+      $current_group_id = $parent_group_id;
+    }
+    return false;
+  }
+
+  // getMaxRankForGroup determines effective user rank for a user in a given group.
+  // For home group it is the existing user rank (as per role) minus 1.
+  // For subgroups, if user can "manage_subgroups", it is MAX_RANK.
+  function getMaxRankForGroup($group_id) {
+
+    $max_rank = 0; // Start safely.
+    if ($this->group_id == $group_id) {
+      $max_rank = $this->rank - 1;
+      return $max_rank;
+    }
+
+    if ($this->isSubgroupValid($group_id))
+      $max_rank = MAX_RANK;
+
+    return $max_rank;
+  }
+
+  // getUserPartForHeader constructs a string for user to display on pages header.
+  // It changes with "on behalf" attributes for both user and group.
+  function getUserPartForHeader() {
+    global $i18n;
+    if (!$this->id) return null;
+
+    $user_part = htmlspecialchars($this->name);
+    $user_part .= ' - '.htmlspecialchars($this->role_name);
+    if ($this->behalf_id) {
+      $user_part .= ' <span class="onBehalf">'.$i18n->get('label.on_behalf').' '.htmlspecialchars($this->behalf_name).'</span>';
+    }
+    if ($this->behalf_group_id) {
+      $user_part .= ',  <span class="onBehalf">'.htmlspecialchars($this->behalf_group_name).'</span>';
+    } else {
+      if ($this->group_name) // Note: we did not require group names in the past.
+        $user_part .= ', '.$this->group_name;
+    }
+    return $user_part;
+  }
+
+  // setOnBehalfGroup sets on behalf group for the user in both the object and the session.
+  function setOnBehalfGroup($group_id) {
+
+    // Unset things first.
+    $this->behalf_group_id = null;
+    $this->behalf_group_name = null;
+    $this->behalf_id = null;
+    $this->behalf_name = null;
+    unset($this->behalfGroup);
+    unset($_SESSION['behalf_group_id']);
+    unset($_SESSION['behalf_group_name']);
+    unset($_SESSION['behalf_id']);
+    unset($_SESSION['behalf_name']);
+
+    // Destroy report bean if it was set in session.
+    $form = new Form('dummyForm');
+    $bean = new ActionForm('reportBean', $form, $request);
+    if ($bean->isSaved()) {
+      $bean->destroyBean();
+    }
+
+    // Do not do anything if we don't have rights.
+    if (!$this->can('manage_subgroups')) return;
+
+    // No need to set if group is our home group.
+    if ($group_id == $this->group_id) return;
+
+    // No need to set if subgroup is not valid.
+    if (!$this->isSubgroupValid($group_id)) return;
+
+    // We are good to set on behalf group.
+    $onBehalfGroupName = ttGroupHelper::getGroupName($group_id);
+    $_SESSION['behalf_group_id'] = $group_id;
+    $_SESSION['behalf_group_name'] = $onBehalfGroupName;
+    $this->behalf_group_id = $group_id;
+    $this->behalf_group_name = $onBehalfGroupName;
+
+    $this->behalfGroup = new ttGroup($this->behalf_group_id, $this->org_id);
+
+    // Adjust on behalf user to first found user in subgroup.
+    $this->adjustBehalfId();
+    return;
+  }
+
+  // setOnBehalfUser sets on behalf user both the object and the session.
+  function setOnBehalfUser($user_id) {
+
+    // Unset things first.
+    $this->behalf_id = null;
+    $this->behalf_name = null;
+    unset($this->behalfUser);
+    unset($_SESSION['behalf_id']);
+    unset($_SESSION['behalf_name']);
+
+    // No need to set if user is us.
+    if ($user_id == $this->id) return;
+
+    // No need to set if user id is not valid.
+    if (!$this->isUserValid($user_id)) return;
+
+    // We are good to set on behalf user.
+    $onBehalfUserName = ttUserHelper::getUserName($user_id);
+    $_SESSION['behalf_id'] = $user_id;
+    $_SESSION['behalf_name'] = $onBehalfUserName;
+    $this->behalf_id = $user_id;
+    $this->behalf_name = $onBehalfUserName;
+
+    $this->behalfUser = new ttBehalfUser($this->behalf_id, $this->org_id);
+    return;
+  }
+
+  // The exists() function determines if an active user exists in context of a page.
+  // If we are working as self, true.
+  // If we are working in a subgroup with active users, true.
+  // If we are working in a subgroup without active users, false.
+  function exists() {
+    if (!$this->behalfGroup)
+      return true; // Working as self.
+    else if ($this->behalfGroup->active_users)
+      return true; // Subgroup has users.
+
+    return false;
+  }
 }