添加插件后，我在管理面板中收到错误。
错误：
Fatal error: Call to a member function toOptionArray() on a non-object in /var/lib/openshift/5374ca8999fc775bdc00009d/app-root/runtime/repo/php/app/code/core/Mage/Adminhtml/Block/System/Config/Form.php on line 463
这是代码：
public function toOptionArray() {
return array(
array('value'=>'0', 'label'=>'No Credit'),
array('value'=>'1', 'label'=>'Credit Only Invited Customer'),
array('value'=>'2', 'label'=>'Credit Only Customer who invite'),
array('value'=>'3', 'label'=>'Credit Both Customer')
);
Form.php 文件：
<?php
类 Mage_Adminhtml_Block_System_Config_Form 扩展 Mage_Adminhtml_Block_Widget_Form {
const SCOPE_DEFAULT = 'default';
const SCOPE_WEBSITES = 'websites';
const SCOPE_STORES = 'stores';
/**
* Config data array
*
* @var array
*/
protected $_configData;
/**
* Adminhtml config data instance
*
* @var Mage_Adminhtml_Model_Config_Data
*/
protected $_configDataObject;
/**
* Enter description here...
*
* @var Varien_Simplexml_Element
*/
protected $_configRoot;
/**
* Enter description here...
*
* @var Mage_Adminhtml_Model_Config
*/
protected $_configFields;
/**
* Enter description here...
*
* @var Mage_Adminhtml_Block_System_Config_Form_Fieldset
*/
protected $_defaultFieldsetRenderer;
/**
* Enter description here...
*
* @var Mage_Adminhtml_Block_System_Config_Form_Field
*/
protected $_defaultFieldRenderer;
/**
* Enter description here...
*
* @var array
*/
protected $_fieldsets = array();
/**
* Translated scope labels
*
* @var array
*/
protected $_scopeLabels = array();
/**
* Enter description here...
*
*/
public function __construct()
{
parent::__construct();
$this->_scopeLabels = array(
self::SCOPE_DEFAULT => Mage::helper('adminhtml')->__('[GLOBAL]'),
self::SCOPE_WEBSITES => Mage::helper('adminhtml')->__('[WEBSITE]'),
self::SCOPE_STORES => Mage::helper('adminhtml')->__('[STORE VIEW]'),
);
}
/**
* Enter description here...
*
* @return Mage_Adminhtml_Block_System_Config_Form
*/
protected function _initObjects()
{
/** @var $_configDataObject Mage_Adminhtml_Model_Config_Data */
$this->_configDataObject = Mage::getSingleton('adminhtml/config_data');
$this->_configRoot = $this->_configDataObject->getConfigRoot();
$this->_configData = $this->_configDataObject->load();
$this->_configFields = Mage::getSingleton('adminhtml/config');
$this->_defaultFieldsetRenderer = Mage::getBlockSingleton('adminhtml/system_config_form_fieldset');
$this->_defaultFieldRenderer = Mage::getBlockSingleton('adminhtml/system_config_form_field');
return $this;
}
/**
* Enter description here...
*
* @return Mage_Adminhtml_Block_System_Config_Form
*/
public function initForm()
{
$this->_initObjects();
$form = new Varien_Data_Form();
$sections = $this->_configFields->getSection(
$this->getSectionCode(),
$this->getWebsiteCode(),
$this->getStoreCode()
);
if (empty($sections)) {
$sections = array();
}
foreach ($sections as $section) {
/* @var $section Varien_Simplexml_Element */
if (!$this->_canShowField($section)) {
continue;
}
foreach ($section->groups as $groups){
$groups = (array)$groups;
usort($groups, array($this, '_sortForm'));
foreach ($groups as $group){
/* @var $group Varien_Simplexml_Element */
if (!$this->_canShowField($group)) {
continue;
}
$this->_initGroup($form, $group, $section);
}
}
}
$this->setForm($form);
return $this;
}
/**
* Init config group
*
* @param Varien_Data_Form $form
* @param Varien_Simplexml_Element $group
* @param Varien_Simplexml_Element $section
* @param Varien_Data_Form_Element_Fieldset|null $parentElement
*/
protected function _initGroup($form, $group, $section, $parentElement = null)
{
if ($group->frontend_model) {
$fieldsetRenderer = Mage::getBlockSingleton((string)$group->frontend_model);
} else {
$fieldsetRenderer = $this->_defaultFieldsetRenderer;
}
$fieldsetRenderer->setForm($this)
->setConfigData($this->_configData);
if ($this->_configFields->hasChildren($group, $this->getWebsiteCode(), $this->getStoreCode())) {
$helperName = $this->_configFields->getAttributeModule($section, $group);
$fieldsetConfig = array('legend' => Mage::helper($helperName)->__((string)$group->label));
if (!empty($group->comment)) {
$fieldsetConfig['comment'] = Mage::helper($helperName)->__((string)$group->comment);
}
if (!empty($group->expanded)) {
$fieldsetConfig['expanded'] = (bool)$group->expanded;
}
$fieldset = new Varien_Data_Form_Element_Fieldset($fieldsetConfig);
$fieldset->setId($section->getName() . '_' . $group->getName())
->setRenderer($fieldsetRenderer)
->setGroup($group);
if ($parentElement) {
$fieldset->setIsNested(true);
$parentElement->addElement($fieldset);
} else {
$form->addElement($fieldset);
}
$this->_prepareFieldOriginalData($fieldset, $group);
$this->_addElementTypes($fieldset);
$this->_fieldsets[$group->getName()] = $fieldset;
if ($group->clone_fields) {
if ($group->clone_model) {
$cloneModel = Mage::getModel((string)$group->clone_model);
} else {
Mage::throwException($this->__('Config form fieldset clone model required to be able to clone fields'));
}
foreach ($cloneModel->getPrefixes() as $prefix) {
$this->initFields($fieldset, $group, $section, $prefix['field'], $prefix['label']);
}
} else {
$this->initFields($fieldset, $group, $section);
}
}
}
/**
* Return dependency block object
*
* @return Mage_Adminhtml_Block_Widget_Form_Element_Dependence
*/
protected function _getDependence()
{
if (!$this->getChild('element_dependense')){
$this->setChild('element_dependense',
$this->getLayout()->createBlock('adminhtml/widget_form_element_dependence'));
}
return $this->getChild('element_dependense');
}
/**
* Init fieldset fields
*
* @param Varien_Data_Form_Element_Fieldset $fieldset
* @param Varien_Simplexml_Element $group
* @param Varien_Simplexml_Element $section
* @param string $fieldPrefix
* @param string $labelPrefix
* @return Mage_Adminhtml_Block_System_Config_Form
*/
public function initFields($fieldset, $group, $section, $fieldPrefix='', $labelPrefix='')
{
if (!$this->_configDataObject) {
$this->_initObjects();
}
// Extends for config data
$configDataAdditionalGroups = array();
foreach ($group->fields as $elements) {
$elements = (array)$elements;
// sort either by sort_order or by child node values bypassing the sort_order
if ($group->sort_fields && $group->sort_fields->by) {
$fieldset->setSortElementsByAttribute(
(string)$group->sort_fields->by,
$group->sort_fields->direction_desc ? SORT_DESC : SORT_ASC
);
} else {
usort($elements, array($this, '_sortForm'));
}
foreach ($elements as $element) {
if (!$this->_canShowField($element)) {
continue;
}
if ((string)$element->getAttribute('type') == 'group') {
$this->_initGroup($fieldset->getForm(), $element, $section, $fieldset);
continue;
}
/**
* Look for custom defined field path
*/
$path = (string)$element->config_path;
if (empty($path)) {
$path = $section->getName() . '/' . $group->getName() . '/' . $fieldPrefix . $element->getName();
} elseif (strrpos($path, '/') > 0) {
// Extend config data with new section group
$groupPath = substr($path, 0, strrpos($path, '/'));
if (!isset($configDataAdditionalGroups[$groupPath])) {
$this->_configData = $this->_configDataObject->extendConfig(
$groupPath,
false,
$this->_configData
);
$configDataAdditionalGroups[$groupPath] = true;
}
}
$data = $this->_configDataObject->getConfigDataValue($path, $inherit, $this->_configData);
if ($element->frontend_model) {
$fieldRenderer = Mage::getBlockSingleton((string)$element->frontend_model);
} else {
$fieldRenderer = $this->_defaultFieldRenderer;
}
$fieldRenderer->setForm($this);
$fieldRenderer->setConfigData($this->_configData);
$helperName = $this->_configFields->getAttributeModule($section, $group, $element);
$fieldType = (string)$element->frontend_type ? (string)$element->frontend_type : 'text';
$name = 'groups[' . $group->getName() . '][fields][' . $fieldPrefix.$element->getName() . '][value]';
$label = Mage::helper($helperName)->__($labelPrefix) . ' '
. Mage::helper($helperName)->__((string)$element->label);
$hint = (string)$element->hint ? Mage::helper($helperName)->__((string)$element->hint) : '';
if ($element->backend_model) {
$model = Mage::getModel((string)$element->backend_model);
if (!$model instanceof Mage_Core_Model_Config_Data) {
Mage::throwException('Invalid config field backend model: '.(string)$element->backend_model);
}
$model->setPath($path)
->setValue($data)
->setWebsite($this->getWebsiteCode())
->setStore($this->getStoreCode())
->afterLoad();
$data = $model->getValue();
}
$comment = $this->_prepareFieldComment($element, $helperName, $data);
$tooltip = $this->_prepareFieldTooltip($element, $helperName);
$id = $section->getName() . '_' . $group->getName() . '_' . $fieldPrefix . $element->getName();
if ($element->depends) {
foreach ($element->depends->children() as $dependent) {
/* @var $dependent Mage_Core_Model_Config_Element */
if (isset($dependent->fieldset)) {
$dependentFieldGroupName = (string)$dependent->fieldset;
if (!isset($this->_fieldsets[$dependentFieldGroupName])) {
$dependentFieldGroupName = $group->getName();
}
} else {
$dependentFieldGroupName = $group->getName();
}
$dependentFieldNameValue = $dependent->getName();
$dependentFieldGroup = $dependentFieldGroupName == $group->getName()
? $group
: $this->_fieldsets[$dependentFieldGroupName]->getGroup();
$dependentId = $section->getName()
. '_' . $dependentFieldGroupName
. '_' . $fieldPrefix
. $dependentFieldNameValue;
$shouldBeAddedDependence = true;
$dependentValue = (string)(isset($dependent->value) ? $dependent->value : $dependent);
if (isset($dependent['separator'])) {
$dependentValue = explode((string)$dependent['separator'], $dependentValue);
}
$dependentFieldName = $fieldPrefix . $dependent->getName();
$dependentField = $dependentFieldGroup->fields->$dependentFieldName;
/*
* If dependent field can't be shown in current scope and real dependent config value
* is not equal to preferred one, then hide dependence fields by adding dependence
* based on not shown field (not rendered field)
*/
if (!$this->_canShowField($dependentField)) {
$dependentFullPath = $section->getName()
. '/' . $dependentFieldGroupName
. '/' . $fieldPrefix
. $dependent->getName();
$dependentValueInStore = Mage::getStoreConfig($dependentFullPath, $this->getStoreCode());
if (is_array($dependentValue)) {
$shouldBeAddedDependence = !in_array($dependentValueInStore, $dependentValue);
} else {
$shouldBeAddedDependence = $dependentValue != $dependentValueInStore;
}
}
if ($shouldBeAddedDependence) {
$this->_getDependence()
->addFieldMap($id, $id)
->addFieldMap($dependentId, $dependentId)
->addFieldDependence($id, $dependentId, $dependentValue);
}
}
}
$sharedClass = '';
if ($element->shared && $element->config_path) {
$sharedClass = ' shared shared-' . str_replace('/', '-', $element->config_path);
}
$requiresClass = '';
if ($element->requires) {
$requiresClass = ' requires';
foreach (explode(',', $element->requires) as $groupName) {
$requiresClass .= ' requires-' . $section->getName() . '_' . $groupName;
}
}
$field = $fieldset->addField($id, $fieldType, array(
'name' => $name,
'label' => $label,
'comment' => $comment,
'tooltip' => $tooltip,
'hint' => $hint,
'value' => $data,
'inherit' => $inherit,
'class' => $element->frontend_class . $sharedClass . $requiresClass,
'field_config' => $element,
'scope' => $this->getScope(),
'scope_id' => $this->getScopeId(),
'scope_label' => $this->getScopeLabel($element),
'can_use_default_value' => $this->canUseDefaultValue((int)$element->show_in_default),
'can_use_website_value' => $this->canUseWebsiteValue((int)$element->show_in_website),
));
$this->_prepareFieldOriginalData($field, $element);
if (isset($element->validate)) {
$field->addClass($element->validate);
}
if (isset($element->frontend_type)
&& 'multiselect' === (string)$element->frontend_type
&& isset($element->can_be_empty)
) {
$field->setCanBeEmpty(true);
}
$field->setRenderer($fieldRenderer);
if ($element->source_model) {
// determine callback for the source model
$factoryName = (string)$element->source_model;
$method = false;
if (preg_match('/^([^:]+?)::([^:]+?)$/', $factoryName, $matches)) {
array_shift($matches);
list($factoryName, $method) = array_values($matches);
}
$sourceModel = Mage::getSingleton($factoryName);
if ($sourceModel instanceof Varien_Object) {
$sourceModel->setPath($path);
}
if ($method) {
if ($fieldType == 'multiselect') {
$optionArray = $sourceModel->$method();
} else {
$optionArray = array();
foreach ($sourceModel->$method() as $value => $label) {
$optionArray[] = array('label' => $label, 'value' => $value);
}
}
} else {
$optionArray = $sourceModel->toOptionArray($fieldType == 'multiselect');
}
$field->setValues($optionArray);
}
}
}
return $this;
}
/**
* Return config root node for current scope
*
* @return Varien_Simplexml_Element
*/
public function getConfigRoot()
{
if (empty($this->_configRoot)) {
$this->_configRoot = Mage::getSingleton('adminhtml/config_data')->getConfigRoot();
}
return $this->_configRoot;
}
/**
* Set "original_data" array to the element, composed from nodes with scalar values
*
* @param Varien_Data_Form_Element_Abstract $field
* @param Varien_Simplexml_Element $xmlElement
*/
protected function _prepareFieldOriginalData($field, $xmlElement)
{
$originalData = array();
foreach ($xmlElement as $key => $value) {
if (!$value->hasChildren()) {
$originalData[$key] = (string)$value;
}
}
$field->setOriginalData($originalData);
}
/**
* Support models "getCommentText" method for field note generation
*
* @param Mage_Core_Model_Config_Element $element
* @param string $helper
* @return string
*/
protected function _prepareFieldComment($element, $helper, $currentValue)
{
$comment = '';
if ($element->comment) {
$commentInfo = $element->comment->asArray();
if (is_array($commentInfo)) {
if (isset($commentInfo['model'])) {
$model = Mage::getModel($commentInfo['model']);
if (method_exists($model, 'getCommentText')) {
$comment = $model->getCommentText($element, $currentValue);
}
}
} else {
$comment = Mage::helper($helper)->__($commentInfo);
}
}
return $comment;
}
/**
* Prepare additional comment for field like tooltip
*
* @param Mage_Core_Model_Config_Element $element
* @param string $helper
* @return string
*/
protected function _prepareFieldTooltip($element, $helper)
{
if ($element->tooltip) {
return Mage::helper($helper)->__((string)$element->tooltip);
} elseif ($element->tooltip_block) {
return $this->getLayout()->createBlock((string)$element->tooltip_block)->toHtml();
}
return '';
}
/**
* Append dependence block at then end of form block
*
*
*/
protected function _afterToHtml($html)
{
if ($this->_getDependence()) {
$html .= $this->_getDependence()->toHtml();
}
$html = parent::_afterToHtml($html);
return $html;
}
/**
* Enter description here...
*
* @param Varien_Simplexml_Element $a
* @param Varien_Simplexml_Element $b
* @return boolean
*/
protected function _sortForm($a, $b)
{
return (int)$a->sort_order < (int)$b->sort_order ? -1 : ((int)$a->sort_order > (int)$b->sort_order ? 1 : 0);
}
/**
* Enter description here...
*
* @param Varien_Simplexml_Element $field
* @return boolean
*/
public function canUseDefaultValue($field)
{
if ($this->getScope() == self::SCOPE_STORES && $field) {
return true;
}
if ($this->getScope() == self::SCOPE_WEBSITES && $field) {
return true;
}
return false;
}
/**
* Enter description here...
*
* @param Varien_Simplexml_Element $field
* @return boolean
*/
public function canUseWebsiteValue($field)
{
if ($this->getScope() == self::SCOPE_STORES && $field) {
return true;
}
return false;
}
/**
* Checking field visibility
*
* @param Varien_Simplexml_Element $field
* @return bool
*/
protected function _canShowField($field)
{
$ifModuleEnabled = trim((string)$field->if_module_enabled);
if ($ifModuleEnabled && !Mage::helper('Core')->isModuleEnabled($ifModuleEnabled)) {
return false;
}
switch ($this->getScope()) {
case self::SCOPE_DEFAULT:
return (int)$field->show_in_default;
break;
case self::SCOPE_WEBSITES:
return (int)$field->show_in_website;
break;
case self::SCOPE_STORES:
return (int)$field->show_in_store;
break;
}
return true;
}
/**
* Retrieve current scope
*
* @return string
*/
public function getScope()
{
$scope = $this->getData('scope');
if (is_null($scope)) {
if ($this->getStoreCode()) {
$scope = self::SCOPE_STORES;
} elseif ($this->getWebsiteCode()) {
$scope = self::SCOPE_WEBSITES;
} else {
$scope = self::SCOPE_DEFAULT;
}
$this->setScope($scope);
}
return $scope;
}
/**
* Retrieve label for scope
*
* @param Mage_Core_Model_Config_Element $element
* @return string
*/
public function getScopeLabel($element)
{
if ($element->show_in_store == 1) {
return $this->_scopeLabels[self::SCOPE_STORES];
} elseif ($element->show_in_website == 1) {
return $this->_scopeLabels[self::SCOPE_WEBSITES];
}
return $this->_scopeLabels[self::SCOPE_DEFAULT];
}
/**
* Get current scope code
*
* @return string
*/
public function getScopeCode()
{
$scopeCode = $this->getData('scope_code');
if (is_null($scopeCode)) {
if ($this->getStoreCode()) {
$scopeCode = $this->getStoreCode();
} elseif ($this->getWebsiteCode()) {
$scopeCode = $this->getWebsiteCode();
} else {
$scopeCode = '';
}
$this->setScopeCode($scopeCode);
}
return $scopeCode;
}
/**
* Get current scope code
*
* @return int|string
*/
public function getScopeId()
{
$scopeId = $this->getData('scope_id');
if (is_null($scopeId)) {
if ($this->getStoreCode()) {
$scopeId = Mage::app()->getStore($this->getStoreCode())->getId();
} elseif ($this->getWebsiteCode()) {
$scopeId = Mage::app()->getWebsite($this->getWebsiteCode())->getId();
} else {
$scopeId = '';
}
$this->setScopeId($scopeId);
}
return $scopeId;
}
/**
* Enter description here...
*
* @return array
*/
protected function _getAdditionalElementTypes()
{
return array(
'export' => Mage::getConfig()->getBlockClassName('adminhtml/system_config_form_field_export'),
'import' => Mage::getConfig()->getBlockClassName('adminhtml/system_config_form_field_import'),
'allowspecific' => Mage::getConfig()
->getBlockClassName('adminhtml/system_config_form_field_select_allowspecific'),
'image' => Mage::getConfig()->getBlockClassName('adminhtml/system_config_form_field_image'),
'file' => Mage::getConfig()->getBlockClassName('adminhtml/system_config_form_field_file')
);
}
/**
* Temporary moved those $this->getRequest()->getParam('blabla') from the code accross this block
* to getBlala() methods to be later set from controller with setters
*/
/**
* Enter description here...
*
* @TODO delete this methods when {^see above^} is done
* @return string
*/
public function getSectionCode()
{
return $this->getRequest()->getParam('section', '');
}
/**
* Enter description here...
*
* @TODO delete this methods when {^see above^} is done
* @return string
*/
public function getWebsiteCode()
{
return $this->getRequest()->getParam('website', '');
}
/**
* Enter description here...
*
* @TODO delete this methods when {^see above^} is done
* @return string
*/
public function getStoreCode()
{
return $this->getRequest()->getParam('store', '');
}
}
指导我如何解决这个问题。
提前致谢
由于您没有提供任何代码，我可以分解基础知识。
该错误意味着该对象为空。
例如，如果您的代码如下所示。
$results->toOptionArray()
然后错误告诉你 $results 不是对象的实例。