diff --git a/main/inc/lib/add_course.lib.inc.php b/main/inc/lib/add_course.lib.inc.php
index fbb585ef87..8d357be805 100755
--- a/main/inc/lib/add_course.lib.inc.php
+++ b/main/inc/lib/add_course.lib.inc.php
@@ -88,7 +88,7 @@ class AddCourse
      * @return int 0
      * @assert (null,null) === false
      */
-    public static function prepare_course_repository($course_repository, $course_code)
+    public static function prepare_course_repository($course_repository)
     {
         $perm = api_get_permissions_for_new_directories();
         $perm_file = api_get_permissions_for_new_files();
@@ -369,15 +369,14 @@ class AddCourse
     /**
      * Sorts pictures by type (used?)
      * @param array List of files (sthg like array(0=>array('png'=>1)))
-     * @param string File type
      * @param string $type
      * @return array The received array without files not matching type
      * @assert (array(),null) === array()
      */
     public static function sort_pictures($files, $type)
     {
-        $pictures = array();
-        foreach ($files as $key => $value) {
+        $pictures = [];
+        foreach ($files as $value) {
             if (isset($value[$type]) && $value[$type] != '') {
                 $pictures[][$type] = $value[$type];
             }
@@ -424,13 +423,8 @@ class AddCourse
         $TABLESETTING = Database::get_course_table(TABLE_COURSE_SETTING);
         $TABLEGRADEBOOK = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
         $TABLEGRADEBOOKLINK = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
-
-        $visible_for_all = 1;
         $visible_for_course_admin = 0;
-        $visible_for_platform_admin = 2;
-
         /*    Course tools  */
-
         Database::query(
             "INSERT INTO $tbl_course_homepage (c_id, id, name, link, image, visibility, admin, address, added_tool, target, category, session_id)
             VALUES ($course_id, 1, '".TOOL_COURSE_DESCRIPTION."','course_description/','info.gif','".self::string2binary(
diff --git a/main/inc/lib/course.lib.php b/main/inc/lib/course.lib.php
index 21d0675522..56fb20894c 100755
--- a/main/inc/lib/course.lib.php
+++ b/main/inc/lib/course.lib.php
@@ -6409,7 +6409,7 @@ class CourseManager
     {
         $authorId = empty($authorId) ? api_get_user_id() : (int) $authorId;
 
-        AddCourse::prepare_course_repository($courseInfo['directory'], $courseInfo['code']);
+        AddCourse::prepare_course_repository($courseInfo['directory']);
         AddCourse::fill_db_course(
             $courseInfo['real_id'],
             $courseInfo['directory'],
diff --git a/main/inc/lib/formvalidator/Element/DateTimePicker.php b/main/inc/lib/formvalidator/Element/DateTimePicker.php
index 70f99924c1..1b06e5b967 100755
--- a/main/inc/lib/formvalidator/Element/DateTimePicker.php
+++ b/main/inc/lib/formvalidator/Element/DateTimePicker.php
@@ -130,9 +130,7 @@ class DateTimePicker extends HTML_QuickForm_text
     public function getTemplate($layout)
     {
         $size = $this->getColumnsSize();
-        $id = $this->getAttribute('id');
         $value = $this->getValue();
-
         if (empty($size)) {
             $sizeTemp = $this->getInputSize();
             if (empty($size)) {
@@ -154,10 +152,6 @@ class DateTimePicker extends HTML_QuickForm_text
             }
         }
 
-        if (!empty($value)) {
-            $value = api_format_date($value, DATE_TIME_FORMAT_LONG_24H);
-        }
-
         switch ($layout) {
             case FormValidator::LAYOUT_INLINE:
                 return '
diff --git a/main/inc/lib/sortable_table.class.php b/main/inc/lib/sortable_table.class.php
index b6236e2b74..efe96a9312 100755
--- a/main/inc/lib/sortable_table.class.php
+++ b/main/inc/lib/sortable_table.class.php
@@ -369,8 +369,6 @@ class SortableTable extends HTML_Table
     {
         $empty_table = false;
         if ($this->get_total_number_of_items() == 0) {
-            $cols = $this->getColCount();
-            //$this->setCellAttributes(1, 0, 'style="font-style: italic;text-align:center;" colspan='.$cols);
             $message_empty = api_xml_http_response_encode(get_lang('TheListIsEmpty'));
             $this->setCellContents(1, 0, $message_empty);
             $empty_table = true;
@@ -396,12 +394,9 @@ class SortableTable extends HTML_Table
             </style>';
 
             // @todo  This also must be moved
-
             // Show only navigations if there are more than 1 page
             $my_pager = $this->get_pager();
-
             $html .= '<div class="main-grid">';
-
             if ($my_pager->numPages() > 1) {
                 $html .= '<div class="sub-header">';
                 $html .= '<div class="grid_selectbox">'.$form.'</div>';
@@ -422,7 +417,6 @@ class SortableTable extends HTML_Table
         // Generation of style classes must be improved. Maybe we need a a table name to create style on the fly:
         // i.e: .whoisonline_table_grid_container instead of  .grid_container
         // where whoisonline is the table's name like drupal's template engine
-
         $html .= '<div class="grid_container">';
         if (is_array($items) && count($items) > 0) {
             foreach ($items as & $row) {
@@ -459,17 +453,12 @@ class SortableTable extends HTML_Table
         $grid_class = array()
     ) {
         $empty_table = false;
-        $total = $this->get_total_number_of_items();
-
         if ($this->get_total_number_of_items() == 0) {
-            $cols = $this->getColCount();
-            //$this->setCellAttributes(1, 0, 'style="font-style: italic;text-align:center;" colspan='.$cols);
             $message_empty = api_xml_http_response_encode(get_lang('TheListIsEmpty'));
             $this->setCellContents(1, 0, $message_empty);
             $empty_table = true;
         }
         $html = '';
-
         if (!$empty_table) {
             // If we show the pagination
             if (!$hide_navigation) {
@@ -640,9 +629,7 @@ class SortableTable extends HTML_Table
         $pager = $this->get_pager();
         $offset = $pager->getOffsetByPageId();
         $from = $offset[0] - 1;
-
         $table_data = $this->get_table_data($from, null, null, null, $sort);
-
         $new_table_data = array();
         if (is_array($table_data)) {
             foreach ($table_data as $index => & $row) {
@@ -740,6 +727,7 @@ class SortableTable extends HTML_Table
             $param['page_nr'] = $this->page_nr;
             $param['per_page'] = $this->per_page;
             $param['column'] = $column;
+            $link = $label;
             if ($sortable) {
                 $link = '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;';
                 foreach ($param as $key => & $value) {
@@ -750,10 +738,7 @@ class SortableTable extends HTML_Table
                 if ($this->column == $column) {
                     $link .= $this->direction == 'ASC' ? ' &#8595;' : ' &#8593;';
                 }
-            } else {
-                $link = $label;
             }
-
             $this->setHeaderContents(0, $column, $link);
 
             if (!is_null($td_attributes)) {
@@ -902,6 +887,7 @@ class SortableTable extends HTML_Table
     {
         $this->additional_parameters = $parameters;
     }
+
     /**
      * Set other tables on the same page.
      * If you have other sortable tables on the page displaying this sortable
@@ -926,7 +912,6 @@ class SortableTable extends HTML_Table
     public function filter_data($row)
     {
         $url_params = $this->get_sortable_table_param_string().'&'.$this->get_additional_url_paramstring();
-
         foreach ($this->column_filters as $column => & $function) {
             $firstParam = isset($row[$column]) ? $row[$column] : 0;
             $row[$column] = call_user_func($function, $firstParam, $url_params, $row);
diff --git a/main/lp/lp_view.lib.js b/main/lp/lp_view.lib.js
index 8a9ea8e485..cd1c6ff477 100755
--- a/main/lp/lp_view.lib.js
+++ b/main/lp/lp_view.lib.js
@@ -6,13 +6,14 @@
 
 //Input the IDs of the IFRAMES you wish to dynamically resize to match its content height:
 //Separate each ID with a comma. Examples: ["myframe1", "myframe2"] or ["myframe"] or [] for none:
-var iframeid="lp_content_frame";
+var iframeid = "lp_content_frame";
 
 //Should script hide iframe from browsers that don't support this script (non IE5+/NS6+ browsers. Recommended):
-var iframehide="no";
+var iframehide = "no";
 
 //var getFFVersion=navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1];
-var FFextraHeight=32; //parseFloat(getFFVersion)>=0.1? 16 : 0; //extra height in px to add to iframe in FireFox 1.0+ browsers
+var FFextraHeight = 32;
+//parseFloat(getFFVersion)>=0.1? 16 : 0; //extra height in px to add to iframe in FireFox 1.0+ browsers
 
 function resizeIframe(frameid) {
     var currentfr=document.getElementById(frameid);
@@ -54,8 +55,8 @@ function readjustIframe(loadevt) {
 }
 
 if (window.addEventListener)
-	window.addEventListener("load", resizeCaller, false);
+    window.addEventListener("load", resizeCaller, false);
 else if (window.attachEvent)
-	window.attachEvent("onload", resizeCaller);
+    window.attachEvent("onload", resizeCaller);
 else
-	window.onload=resizeCaller;
\ No newline at end of file
+    window.onload = resizeCaller;
\ No newline at end of file
diff --git a/main/mySpace/slider.js b/main/mySpace/slider.js
index 9ac1d83cb9..fb3c0879c9 100755
--- a/main/mySpace/slider.js
+++ b/main/mySpace/slider.js
@@ -1,17 +1,6 @@
 // Set the initial height
 var sliderHeight = "80px";
 
-$(document).ready(function () {
-    // Show the slider content
-    $('.slider').show();
-    $('.slider').each(function () {
-        var current = $(this);
-        current.attr("box_h", current.height());
-    });
-
-    $(".slider").css("height", sliderHeight);
-});
-
 // Set the initial slider state
 var slider_state = "close";
 
@@ -40,4 +29,15 @@ function sliderClose()
 {
     $(".slider").animate({"height": "0px"}, {duration: "fast" });
     $(".slider").animate({"height": sliderHeight}, {duration: "fast" });
-}
\ No newline at end of file
+}
+
+$(document).ready(function () {
+    // Show the slider content
+    $('.slider').show();
+    $('.slider').each(function () {
+        var current = $(this);
+        current.attr("box_h", current.height());
+    });
+
+    $(".slider").css("height", sliderHeight);
+});
\ No newline at end of file
diff --git a/plugin/advanced_subscription/src/AdvancedSubscriptionPlugin.php b/plugin/advanced_subscription/src/AdvancedSubscriptionPlugin.php
index 4746f03b81..f6451dc3cc 100644
--- a/plugin/advanced_subscription/src/AdvancedSubscriptionPlugin.php
+++ b/plugin/advanced_subscription/src/AdvancedSubscriptionPlugin.php
@@ -31,7 +31,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
         );
 
         parent::__construct('1.0', 'Imanol Losada, Daniel Barreto', $parameters);
-
         $this->errorMessages = array();
     }
 
@@ -80,7 +79,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
     {
         $extraField = new ExtraField('user');
         $extraFieldHandler = $extraField->get_handler_field_info_by_field_variable('area');
-
         $areaExists = $extraFieldHandler !== false;
 
         if (!$areaExists) {
@@ -127,7 +125,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
     {
         /* Drop plugin tables */
         $advancedSubscriptionQueueTable = Database::get_main_table(TABLE_ADVANCED_SUBSCRIPTION_QUEUE);
-
         $sql = "DROP TABLE IF EXISTS $advancedSubscriptionQueueTable; ";
         Database::query($sql);
 
@@ -154,7 +151,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
     {
         $self = self::create();
         $wsUrl = $self->get('ws_url');
-
+        $profileCompleted = 0;
         if (!empty($wsUrl)) {
             $client = new SoapClient(
                 null,
@@ -177,10 +174,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
             }
         } elseif (isset($params['profile_completed'])) {
             $profileCompleted = (float) $params['profile_completed'];
-        } else {
-            $profileCompleted = 0;
         }
-
         $profileCompletedMin = (float) $self->get('min_profile_percentage');
 
         if ($profileCompleted < $profileCompletedMin) {
@@ -230,6 +224,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
         }
 
         $profileCompletedMin = (float) $plugin->get('min_profile_percentage');
+        $profileCompleted = 0;
 
         if (is_string($wsUrl) && !empty($wsUrl)) {
             $options = array(
@@ -245,8 +240,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
             }
         } elseif (isset($params['profile_completed'])) {
             $profileCompleted = (float) $params['profile_completed'];
-        } else {
-            $profileCompleted = 0;
         }
 
         if ($profileCompleted < $profileCompletedMin) {
@@ -299,7 +292,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
             foreach ($sessions as $session) {
                 $costField = $extra->get_values_by_handler_and_field_variable($session['id'], 'cost');
                 $userCost += $costField['value'];
-
                 $teachingHoursField = $extra->get_values_by_handler_and_field_variable($session['id'], 'teaching_hours');
                 $expendedTime += $teachingHoursField['value'];
             }
@@ -433,7 +425,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
      */
     public function startSubscription($userId, $sessionId, $params)
     {
-        $result = null;
+        $result = 'Params not found';
         if (!empty($sessionId) && !empty($userId)) {
             $plugin = self::create();
             try {
@@ -445,10 +437,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
             } catch (Exception $e) {
                 $result = $e->getMessage();
             }
-        } else {
-            $result = 'Params not found';
         }
-
         return $result;
     }
 
@@ -470,7 +459,7 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
         $content,
         $sessionId,
         $save = false,
-        $fileAttachments = array()
+        $fileAttachments = []
     ) {
         if (!empty($fileAttachments) &&
             is_array($fileAttachments) &&
@@ -547,8 +536,12 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
      * @param string $sessionFieldVariable
      * @return bool
      */
-    public function isUserInTargetGroup($userId, $sessionId, $userFieldVariable = 'area', $sessionFieldVariable = 'target')
-    {
+    public function isUserInTargetGroup(
+        $userId,
+        $sessionId,
+        $userFieldVariable = 'area',
+        $sessionFieldVariable = 'target'
+    ) {
         $extraSessionFieldValue = new ExtraFieldValue('session');
         $sessionTarget = $extraSessionFieldValue->get_values_by_handler_and_field_variable(
             $sessionId,
@@ -582,6 +575,8 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
     public function updateQueueStatus($params, $newStatus)
     {
         $newStatus = intval($newStatus);
+        $res = false;
+
         if (isset($params['queue']['id'])) {
             $where = array(
                 'id = ?' => intval($params['queue']['id']),
@@ -605,8 +600,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
                 ),
                 $where
             );
-        } else {
-            $res = false;
         }
 
         return $res;
@@ -920,7 +913,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
 
     /**
      * This method will call the Hook management insertHook to add Hook observer from this plugin
-     * @return int
      */
     public function installHook()
     {
@@ -933,7 +925,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
 
     /**
      * This method will call the Hook management deleteHook to disable Hook observer from this plugin
-     * @return int
      */
     public function uninstallHook()
     {
@@ -1028,7 +1019,6 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
                 'brochure',
                 'banner',
             );
-            $extraSession = new ExtraFieldValue('session');
             $extraField = new ExtraField('session');
             // Get session fields
             $fieldList = $extraField->get_all(array(
@@ -1081,10 +1071,9 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
     {
         switch ($status) {
             case ADVANCED_SUBSCRIPTION_QUEUE_STATUS_NO_QUEUE:
+                $message = $this->get_lang('AdvancedSubscriptionNoQueue');
                 if ($isAble) {
                     $message = $this->get_lang('AdvancedSubscriptionNoQueueIsAble');
-                } else {
-                    $message = $this->get_lang('AdvancedSubscriptionNoQueue');
                 }
                 break;
             case ADVANCED_SUBSCRIPTION_QUEUE_STATUS_START:
@@ -1486,5 +1475,4 @@ class AdvancedSubscriptionPlugin extends Plugin implements HookPluginInterface
 
         return $numberOfApproved;
     }
-
 }
diff --git a/src/Chamilo/CourseBundle/Entity/CDocument.php b/src/Chamilo/CourseBundle/Entity/CDocument.php
index b2eee85298..4b22321335 100644
--- a/src/Chamilo/CourseBundle/Entity/CDocument.php
+++ b/src/Chamilo/CourseBundle/Entity/CDocument.php
@@ -296,4 +296,22 @@ class CDocument
     {
         return $this->cId;
     }
+
+    /**
+     * @return int
+     */
+    public function getIid()
+    {
+        return $this->iid;
+    }
+
+    /**
+     * @param int $iid
+     * @return CDocument
+     */
+    public function setIid($iid)
+    {
+        $this->iid = $iid;
+        return $this;
+    }
 }
diff --git a/src/Chamilo/CourseBundle/Entity/CDropboxFile.php b/src/Chamilo/CourseBundle/Entity/CDropboxFile.php
index 91f7b9cafb..bfb7869838 100644
--- a/src/Chamilo/CourseBundle/Entity/CDropboxFile.php
+++ b/src/Chamilo/CourseBundle/Entity/CDropboxFile.php
@@ -390,4 +390,22 @@ class CDropboxFile
     {
         return $this->cId;
     }
+
+    /**
+     * @return int
+     */
+    public function getIid()
+    {
+        return $this->iid;
+    }
+
+    /**
+     * @param int $iid
+     * @return CDropboxFile
+     */
+    public function setIid($iid)
+    {
+        $this->iid = $iid;
+        return $this;
+    }
 }