Doctrine Fill Class Attributes

class.php

    /**
     * Assign entity properties using an array
     *
     * @param array $attributes assoc array of values to assign
     * @return null
     */
    public function fromArray(array $attributes)
    {
        foreach ($attributes as $name => $value) {
            if (property_exists($this, $name)) {
                $methodName = $this->_getSetterName($name);
                if ($methodName) {
                    $this->{$methodName}($value);
                } else {
                    $this->$name = $value;
                }
            }
        }
    }

    /**
     * Get property setter method name (if exists)
     *
     * @param string $propertyName entity property name
     * @return false|string
     */
    protected function _getSetterName($propertyName)
    {
        $prefixes = array('add', 'set');

        foreach ($prefixes as $prefix) {
            if(function_exists('camel_case')){
                $methodName = sprintf('%s%s', $prefix, ucfirst(camel_case($propertyName)));
            } else {
                $methodName = sprintf('%s%s', $prefix, ucfirst(strtolower($propertyName)));
            }

            if (method_exists($this, $methodName)) {
                return $methodName;
            }
        }
        return false;
    }

repository.php

/**
     * Prepare attributes for entity
     * replace foreign keys with entity instances
     *
     * @param array $attributes entity attributes
     * @return array modified attributes values
     */
    public function prepareAttributes(array $attributes)
    {
        foreach ($attributes as $fieldName => &$fieldValue) {
            if (!$this->getClassMetadata()->hasAssociation($fieldName)) {
                continue;
            }

            $association = $this->getClassMetadata()
                ->getAssociationMapping($fieldName);

            if (is_null($fieldValue)) {
                continue;
            }

            $fieldValue = $this->getEntityManager()
                ->getReference($association['targetEntity'], $fieldValue);

            unset($fieldValue);
        }

        return $attributes;
    }