/**
  * Gets mysql default value for a property
  *
  * Must be called only after $column's Null and Type has been set
  *
  * @param $property Reflection_Property
  * @param $column Column
  * @return mixed
  */
 private static function propertyDefaultToMysql(Reflection_Property $property, Column $column)
 {
     $default = $property->getDeclaringClass()->getDefaultProperties()[$property->name];
     if (isset($default)) {
         $property_type = $column->getType();
         if ($property_type->isNumeric()) {
             $default = $default + 0;
         } elseif (is_array($default)) {
             $default = '';
         }
     } else {
         if ($column->canBeNull()) {
             $default = null;
         } else {
             $property_type = $column->getType();
             if ($property_type->isNumeric()) {
                 $default = 0;
             } elseif ($property_type->isString() || $property_type->isMultipleString()) {
                 $default = '';
             } elseif ($property_type->isDateTime()) {
                 $default = '0000-00-00 00:00:00';
             }
         }
     }
     return $default;
 }