diff --git a/application/controllers/api/v1/system/UDF.php b/application/controllers/api/v1/system/UDF.php
index 517ef305d..5d2ec8ee7 100644
--- a/application/controllers/api/v1/system/UDF.php
+++ b/application/controllers/api/v1/system/UDF.php
@@ -60,6 +60,64 @@ class UDF extends APIv1_Controller
 		$this->response($result, REST_Controller::HTTP_OK);
 	}
 	
+	/**
+	 * 
+	 */
+	public function postUDF()
+	{
+		$udfs = $this->post();
+		$validation = $this->_validate($udfs);
+		
+		var_dump($udfs);exit;
+		
+		if (isSuccess($validation))
+		{
+			$caller = null;
+			if (isset($udfs['caller']))
+			{
+				$caller = $udfs['caller'];
+				unset($udfs['caller']);
+			}
+			
+			$result = $this->UDFModel->saveUDFs($udfs);
+			
+			if ($caller != null)
+			{
+				$res = 'ERR';
+				if (isSuccess($result))
+				{
+					$res = 'OK';
+				}
+				
+				redirect($caller.'&res='.$res);
+			}
+			else
+			{
+				$this->response($result, REST_Controller::HTTP_OK);
+			}
+		}
+		else
+		{
+			$this->response($validation, REST_Controller::HTTP_OK);
+		}
+	}
+	
+	/**
+	 * 
+	 */
+	private function _validate($udfs)
+	{
+		$validation = error('person_id or prestudent_id is missing');
+		
+		if((isset($udfs['person_id']) && !(is_null($udfs['person_id'])) && ($udfs['person_id'] != ''))
+			|| (isset($udfs['prestudent_id']) && !(is_null($udfs['prestudent_id'])) && ($udfs['prestudent_id'] != '')))
+		{
+			$validation = success(true);
+		}
+		
+		return $validation;
+	}
+	
 	/**
 	 * Decode to json the column jsons for every result set
 	 */
diff --git a/application/libraries/WidgetLib.php b/application/libraries/WidgetLib.php
index 8040b7911..b1da1670c 100644
--- a/application/libraries/WidgetLib.php
+++ b/application/libraries/WidgetLib.php
@@ -1066,9 +1066,6 @@ class TextfieldWidgetUDF extends TextfieldWidget
  */
 class CheckboxWidget extends Widget
 {
-	// The name of the element of the data array given to the view
-	// this element is an array of elements to be place inside the dropdown
-	const WIDGET_DATA_ELEMENTS_ARRAY_NAME = 'ELEMENTS_ARRAY';
 	// Name of the property that will be used to store the value attribute of the option tag
 	const VALUE_FIELD = 'value';
 	// Name of the property that will be used to store the value between the option tags
@@ -1090,31 +1087,19 @@ class CheckboxWidget extends Widget
 			$this->_args[CheckboxWidget::CHECKED_ELEMENT] = Widget::HTML_DEFAULT_VALUE;
 		}
 	}
-
+	
 	/**
 	 * 
 	 */
-	protected function setValuesArray($values)
+	protected function setValue($value)
 	{
-		if (isError($values))
+		$tmpValue = $value;
+		if (is_array($value) && count($value) > 0)
 		{
-			if (is_object($values) && isset($values->retval))
-			{
-				show_error($values->retval);
-			}
-			else if (is_string($values))
-			{
-				show_error($values);
-			}
-			else
-			{
-				show_error('Generic error occurred');
-			}
-		}
-		else
-		{
-			$this->_args[CheckboxWidget::WIDGET_DATA_ELEMENTS_ARRAY_NAME] = $values->retval;
+			$tmpValue = array_values($value)[0];
 		}
+		
+		$this->_args[CheckboxWidget::VALUE_FIELD] = $tmpValue;
 	}
 	
 	/**
@@ -1136,45 +1121,60 @@ class CheckboxWidgetUDF extends CheckboxWidget
 	 */
 	public function render($parameters)
 	{
-		$tmpElements = array();
-		
-		// 
-		foreach($parameters as $parameter)
+		if ($parameters != null)
 		{
-			// 
-			if ((is_array($parameter) && count($parameter) == 2)
-				|| (is_string($parameter) || is_numeric($parameter))
-				|| (is_object($parameter) && isset($parameter->{PARENT::VALUE_FIELD}) && isset($parameter->{PARENT::DESCRIPTION_FIELD})))
-			{
-				$element = new stdClass(); // 
-				// 
-				if (is_array($parameter) && count($parameter) == 2)
-				{
-					$element->{PARENT::VALUE_FIELD} = $parameter[0]; // 
-					$element->{PARENT::DESCRIPTION_FIELD} = $parameter[1]; // 
-				}
-				// 
-				else if (is_string($parameter) || is_numeric($parameter))
-				{
-					$element->{PARENT::VALUE_FIELD} = $parameter; // 
-					$element->{PARENT::DESCRIPTION_FIELD} = $parameter; // 
-				}
-				// 
-				else if (is_object($parameter) && isset($parameter->{PARENT::VALUE_FIELD}) && isset($parameter->{PARENT::DESCRIPTION_FIELD}))
-				{
-					$element->{PARENT::VALUE_FIELD} = $parameter->{PARENT::VALUE_FIELD}; // 
-					$element->{PARENT::DESCRIPTION_FIELD} = $parameter->{PARENT::DESCRIPTION_FIELD}; // 
-				}
-				
-				array_push($tmpElements, $element); // 
-			}
+			$this->setValue($parameters);
+		}
+		else
+		{
+			$this->setValue('');
 		}
-		
-		$this->setValuesArray(success($tmpElements));
 		
 		$this->loadCheckboxView();
 		
 		echo $this->content();
+		
+// 		$tmpElements = array();
+		
+		// 
+// 		foreach($parameters as $parameter)
+// 		{
+// 			// 
+// 			if ((is_array($parameter) && count($parameter) == 2)
+// 				|| (is_string($parameter) || is_numeric($parameter))
+// 				|| (is_object($parameter) && isset($parameter->{PARENT::VALUE_FIELD})
+// 					&& isset($parameter->{PARENT::DESCRIPTION_FIELD})))
+// 			{
+// 				$element = new stdClass(); // 
+// 				// 
+// 				if (is_array($parameter) && count($parameter) == 2)
+// 				{
+// 					$element->{PARENT::VALUE_FIELD} = $parameter[0]; // 
+// 					$element->{PARENT::DESCRIPTION_FIELD} = $parameter[1]; // 
+// 				}
+// 				// 
+// 				else if (is_string($parameter) || is_numeric($parameter))
+// 				{
+// 					$element->{PARENT::VALUE_FIELD} = $parameter; // 
+// 					$element->{PARENT::DESCRIPTION_FIELD} = $parameter; // 
+// 				}
+// 				// 
+// 				else if (is_object($parameter) && isset($parameter->{PARENT::VALUE_FIELD})
+// 					&& isset($parameter->{PARENT::DESCRIPTION_FIELD}))
+// 				{
+// 					$element->{PARENT::VALUE_FIELD} = $parameter->{PARENT::VALUE_FIELD}; // 
+// 					$element->{PARENT::DESCRIPTION_FIELD} = $parameter->{PARENT::DESCRIPTION_FIELD}; // 
+// 				}
+// 				
+// 				array_push($tmpElements, $element); // 
+// 			}
+// 		}
+// 		
+// 		$this->setValuesArray(success($tmpElements));
+// 		
+// 		$this->loadCheckboxView();
+// 		
+// 		echo $this->content();
     }
 }
 
diff --git a/application/models/system/UDF_model.php b/application/models/system/UDF_model.php
index e33cdd275..86b2f7dc8 100644
--- a/application/models/system/UDF_model.php
+++ b/application/models/system/UDF_model.php
@@ -39,4 +39,53 @@ class UDF_model extends DB_Model
 			return error('You are allowed to run only query for reading data');
 		}
 	}
+	
+	/**
+	 * 
+	 */
+	public function saveUDFs($udfs)
+	{
+		$result = error('No way man!');
+		$resultPerson = success('person');
+		$resultPrestudent = success('prestudent');
+		
+		// 
+		if (isset($udfs['person_id']))
+		{
+			// Load model Person_model
+			$this->load->model('person/Person_model', 'PersonModel');
+			
+			$person_id = $udfs['person_id'];
+			unset($udfs['person_id']);
+			
+			$resultPerson = $this->PersonModel->update($person_id, $udfs);
+		}
+		
+		// 
+		if (isset($udfs['prestudent_id']))
+		{
+			// Load model Prestudent_model
+			$this->load->model('crm/Prestudent_model', 'PrestudentModel');
+			
+			$prestudent_id = $udfs['prestudent_id'];
+			unset($udfs['prestudent_id']);
+			
+			$resultPrestudent = $this->PrestudentModel->update($prestudent_id, $udfs);
+		}
+		
+		if (isSuccess($resultPerson) && isSuccess($resultPrestudent))
+		{
+			$result = success(array($resultPerson->retval, $resultPrestudent->retval));
+		}
+		else if(isError($resultPerson))
+		{
+			$result = $resultPerson;
+		}
+		else if(isError($resultPrestudent))
+		{
+			$result = $resultPrestudent;
+		}
+		
+		return $result;
+	}
 }
\ No newline at end of file
diff --git a/application/views/widgets/checkbox.php b/application/views/widgets/checkbox.php
index 8fb459850..d6a233115 100644
--- a/application/views/widgets/checkbox.php
+++ b/application/views/widgets/checkbox.php
@@ -9,34 +9,22 @@
 <?php
 	}
 ?>
-<fieldset
+<input
+	type="checkbox"
 	<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, Widget::HTML_ID); ?>
+	<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, Widget::HTML_NAME); ?>
 	<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, UDFWidgetTpl::REQUIRED); ?>
 	<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, UDFWidgetTpl::REGEX); ?>
 	<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, UDFWidgetTpl::TITLE); ?>
->
 	<?php
-		$elements = ${CheckboxWidget::WIDGET_DATA_ELEMENTS_ARRAY_NAME};
-		$checkedElement = ${CheckboxWidget::CHECKED_ELEMENT};
-		
-		foreach($elements as $element)
+		$checked = '';
+		if (${CheckboxWidget::VALUE_FIELD} == ${CheckboxWidget::CHECKED_ELEMENT})
 		{
-			$checked = '';
-			
-			if ($element->{CheckboxWidget::VALUE_FIELD} == $checkedElement)
-			{
-				$checked = 'checked';
-			}
-	?>
-		<input
-			type="checkbox"
-			<?php Widget::printAttribute(${Widget::HTML_ARG_NAME}, Widget::HTML_NAME); ?>
-			value="<?php echo $element->{CheckboxWidget::VALUE_FIELD}; ?>"
-			<?php echo $checked; ?>
-		>
-		<?php echo $element->{CheckboxWidget::DESCRIPTION_FIELD}; ?>
-	<?php
+			$checked = 'checked';
 		}
 	?>
-</fieldset>
+	<?php echo $checked; ?>
+	value="<?php echo ${CheckboxWidget::VALUE_FIELD}; ?>"
+>
+<?php echo ${CheckboxWidget::VALUE_FIELD}; ?>
 <?php Widget::printEndBlock(${Widget::HTML_ARG_NAME}); ?>
\ No newline at end of file
diff --git a/application/views/widgets/dropdown.php b/application/views/widgets/dropdown.php
index 6494d180f..3cbdbff23 100644
--- a/application/views/widgets/dropdown.php
+++ b/application/views/widgets/dropdown.php
@@ -32,7 +32,7 @@
 			{
 				foreach($selectedElements as $selectedElement)
 				{
-					if ($element->{DropdownWidget::ID_FIELD} === $selectedElement)
+					if ($element->{DropdownWidget::ID_FIELD} == $selectedElement)
 					{
 						$selected = 'selected';
 					}
@@ -40,7 +40,7 @@
 			}
 			else
 			{
-				if ($element->{DropdownWidget::ID_FIELD} === $selectedElements)
+				if ($element->{DropdownWidget::ID_FIELD} == $selectedElements)
 				{
 					$selected = 'selected';
 				}
diff --git a/application/widgets/UDFWidget.php b/application/widgets/UDFWidget.php
index f4fc66c74..2147177f5 100644
--- a/application/widgets/UDFWidget.php
+++ b/application/widgets/UDFWidget.php
@@ -5,6 +5,9 @@
  */
 class UDFWidget extends UDFWidgetTpl
 {
+	const NAME = 'name';
+	const TYPE = 'type';
+	const LIST_VALUES = 'listValues';
 	const REGEX_LANGUAGE = 'js';
 	
     public function display($widgetData)
@@ -44,19 +47,19 @@ class UDFWidget extends UDFWidgetTpl
 					foreach($jsonSchemasArray as $jsonSchema)
 					{
 						// 
-						if (!isset($jsonSchema->type))
+						if (!isset($jsonSchema->{UDFWidget::TYPE}))
 						{
 							show_error(sprintf('%s.%s: Attribute "type" not present in the json schema', $schema, $table));
 							break;
 						}
-						if (!isset($jsonSchema->name))
+						if (!isset($jsonSchema->{UDFWidget::NAME}))
 						{
 							show_error(sprintf('%s.%s: Attribute "name" not present in the json schema', $schema, $table));
 							break;
 						}
 						
 						// 
-						if ((isset($field) && $field == $jsonSchema->name) || !isset($field))
+						if ((isset($field) && $field == $jsonSchema->{UDFWidget::NAME}) || !isset($field))
 						{
 							$this->_setAttributesWithPhrases($jsonSchema);
 							
@@ -67,7 +70,7 @@ class UDFWidget extends UDFWidgetTpl
 							$this->_render($jsonSchema);
 							
 							// 
-							if (isset($field) && $field == $jsonSchema->name)
+							if (isset($field) && $field == $jsonSchema->{UDFWidget::NAME})
 							{
 								$found = true;
 								break;
@@ -98,8 +101,8 @@ class UDFWidget extends UDFWidgetTpl
      */
     private function _setNameAndId($jsonSchema)
     {
-		$this->_args[Widget::HTML_ARG_NAME][Widget::HTML_ID] = $jsonSchema->name;
-		$this->_args[Widget::HTML_ARG_NAME][Widget::HTML_NAME] = $jsonSchema->name;
+		$this->_args[Widget::HTML_ARG_NAME][Widget::HTML_ID] = $jsonSchema->{UDFWidget::NAME};
+		$this->_args[Widget::HTML_ARG_NAME][Widget::HTML_NAME] = $jsonSchema->{UDFWidget::NAME};
     }
     
     /**
@@ -172,27 +175,27 @@ class UDFWidget extends UDFWidgetTpl
     private function _render($jsonSchema)
     {
 		// Type
-		if ($jsonSchema->type == 'checkbox')
+		if ($jsonSchema->{UDFWidget::TYPE} == 'checkbox')
 		{
 			$this->_renderCheckbox($jsonSchema);
 		}
-		else if ($jsonSchema->type == 'textfield')
+		else if ($jsonSchema->{UDFWidget::TYPE} == 'textfield')
 		{
 			$this->_renderTextfield($jsonSchema);
 		}
-		else if ($jsonSchema->type == 'textarea')
+		else if ($jsonSchema->{UDFWidget::TYPE} == 'textarea')
 		{
 			$this->_renderTextarea($jsonSchema);
 		}
-		else if ($jsonSchema->type == 'date')
+		else if ($jsonSchema->{UDFWidget::TYPE} == 'date')
 		{
 			
 		}
-		else if ($jsonSchema->type == 'dropdown')
+		else if ($jsonSchema->{UDFWidget::TYPE} == 'dropdown')
 		{
 			$this->_renderDropdown($jsonSchema);
 		}
-		else if ($jsonSchema->type == 'multipledropdown')
+		else if ($jsonSchema->{UDFWidget::TYPE} == 'multipledropdown')
 		{
 			$this->_renderDropdown($jsonSchema, true);
 		}
@@ -205,23 +208,23 @@ class UDFWidget extends UDFWidgetTpl
 	{
 		
 		if (isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME])
-			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name]))
+			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}]))
 		{
-			$this->_args[DropdownWidget::SELECTED_ELEMENT] = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name];
+			$this->_args[DropdownWidget::SELECTED_ELEMENT] = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}];
 		}
 		
 		$dropdownWidgetUDF = new DropdownWidgetUDF($this->_name, $this->_args);
 		$parameters = array();
 		
 		// 
-		if (isset($jsonSchema->listValues->enum))
+		if (isset($jsonSchema->{UDFWidget::LIST_VALUES}->enum))
 		{
-			$parameters = $jsonSchema->listValues->enum;
+			$parameters = $jsonSchema->{UDFWidget::LIST_VALUES}->enum;
 		}
 		// 
-		else if (isset($jsonSchema->listValues->sql))
+		else if (isset($jsonSchema->{UDFWidget::LIST_VALUES}->sql))
 		{
-			$queryResult = $this->UDFModel->execQuery($jsonSchema->listValues->sql);
+			$queryResult = $this->UDFModel->execQuery($jsonSchema->{UDFWidget::LIST_VALUES}->sql);
 			if (hasData($queryResult))
 			{	
 				$parameters = $queryResult->retval;
@@ -245,9 +248,9 @@ class UDFWidget extends UDFWidgetTpl
 		$text = null;
 		
 		if (isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME])
-			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name]))
+			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}]))
 		{
-			$text = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name];
+			$text = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}];
 		}
 		
 		$textareaUDF->render($text);
@@ -262,9 +265,9 @@ class UDFWidget extends UDFWidgetTpl
 		$text = null;
 		
 		if (isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME])
-			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name]))
+			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}]))
 		{
-			$text = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name];
+			$text = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}];
 		}
 		
 		$textareaUDF->render($text);
@@ -276,32 +279,33 @@ class UDFWidget extends UDFWidgetTpl
 	private function _renderCheckbox($jsonSchema)
 	{
 		if (isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME])
-			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name]))
+			&& isset($this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}]))
 		{
-			$this->_args[CheckboxWidget::CHECKED_ELEMENT] = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->name];
+			$this->_args[CheckboxWidget::CHECKED_ELEMENT] = $this->_args[UDFWidgetTpl::UDFS_ARG_NAME][$jsonSchema->{UDFWidget::NAME}];
 		}
 		
 		// 
 		if (!isset($this->_args[CheckboxWidget::CHECKED_ELEMENT]))
 		{
-			$this->_args[CheckboxWidget::CHECKED_ELEMENT] = $jsonSchema->defaultValue;
+			$this->_args[CheckboxWidget::CHECKED_ELEMENT] = $jsonSchema->{UDFWidgetTpl::DEFAULT_VALUE};
 		}
 		
 		$checkboxWidgetUDF = new CheckboxWidgetUDF($this->_name, $this->_args);
 		$parameters = array();
 		
 		// 
-		if (isset($jsonSchema->listValues->enum))
+		if (isset($jsonSchema->{UDFWidget::LIST_VALUES}->enum))
 		{
-			$parameters = $jsonSchema->listValues->enum;
+			$parameters = $jsonSchema->{UDFWidget::LIST_VALUES}->enum;
 		}
 		// 
-		else if (isset($jsonSchema->listValues->sql))
+		else if (isset($jsonSchema->{UDFWidget::LIST_VALUES}->sql))
 		{
-			$queryResult = $this->UDFModel->execQuery($jsonSchema->listValues->sql);
+			$queryResult = $this->UDFModel->execQuery($jsonSchema->{UDFWidget::LIST_VALUES}->sql);
 			if (hasData($queryResult))
-			{	
-				$parameters = $queryResult->retval;
+			{
+				$tmpResult = (array)$queryResult->retval[0];
+				$parameters = $tmpResult;
 			}
 		}