Index: trunk/core/kernel/kbase.php
===================================================================
diff -u -r3282 -r3307
--- trunk/core/kernel/kbase.php	(.../kbase.php)	(revision 3282)
+++ trunk/core/kernel/kbase.php	(.../kbase.php)	(revision 3307)
@@ -304,11 +304,23 @@
 	{
 		$this->setTableName( $this->Application->getUnitOption($this->Prefix, 'TableName') );
 		$this->setIDField( $this->Application->getUnitOption($this->Prefix, 'IDField') );
+		
+		$this->defineFields();
+		
+		$this->ApplyFieldModifiers(); // should be called only after all fields definitions been set
+		$this->prepareConfigOptions(); // this should go last, but before setDefaultValues, order is significant!
+		$this->SetDefaultValues();
+	}
+	
+	/**
+	 * Add field definitions from all possible sources (DB Fields, Virtual Fields, Calcualted Fields, e.t.c.)
+	 *
+	 */
+	function defineFields()
+	{
 		$this->setConfigFields( $this->Application->getUnitOption($this->Prefix, 'Fields') );
 		$this->setVirtualFields( $this->Application->getUnitOption($this->Prefix, 'VirtualFields') );
 		$this->setCalculatedFields( $this->Application->getUnitOption($this->Prefix, 'CalculatedFields') );
-		$this->prepareConfigOptions(); // this should go last, but before setDefaultValues, order is significant!
-		$this->SetDefaultValues();
 	}
 	
 	function setCalculatedFields($fields)
@@ -325,10 +337,38 @@
 	 */
 	function setConfigFields($fields)
 	{
-		$this->Fields=$fields;
+		$this->Fields = $fields;
 	}
 	
 	/**
+	 * Override field options with ones defined in submit via "field_modfiers" array (common for all prefixes)
+	 *
+	 * @access private
+	 * @author Alex
+	 */
+	function ApplyFieldModifiers()
+	{
+//		$this->Application->APCalled[] = $this->getPrefixSpecial();
+
+		$allowed_modifiers = Array('required');
+		
+		$field_modifiers = $this->Application->GetVar('field_modifiers');
+		if(!$field_modifiers) return false;
+		
+		$field_modifiers = getArrayValue($field_modifiers, $this->getPrefixSpecial());
+		if(!$field_modifiers) return false;
+		
+		foreach ($field_modifiers as $field => $field_options)
+		{
+			foreach ($field_options as $option_name => $option_value)
+			{
+				if ( !in_array(strtolower($option_name), $allowed_modifiers) ) continue;
+				$this->Fields[$field][$option_name] = $option_value;
+			}
+		}
+	}
+	
+	/**
 	 * Set fields (+options) for fields that physically doesn't exist in database 
 	 *
 	 * @param Array $fields