我正在将 Silverstripe Swipestripe 模块用于在线商店。由于客户拥有的产品数量众多，当他们想要对产品进行更改时（这种情况经常发生），让他们通过站点树导航到每个单独的产品是不切实际的，所以我希望有一个模型管理员来列出所有产品并允许他们按名称/股票代码搜索产品。
我认为这可以像 DataObjects 一样解决（搜索似乎表明人们已经实现了这一点），但是当我导航到 ModelAdmin 视图中的产品时，我得到：
致命错误：在非对象上调用成员函数 stat() /path/to/folder/wwwroot/framework/model/DataObject.php 第 3192 行
<?php
class ProductAdmin extends ModelAdmin
{
private static $managed_models = array('Product');
private static $url_segment = 'product';
private $menu_title = 'Products';
}
有趣的是，页面和页面类的其他扩展确实可以工作。
这是 Product 类的代码：
class Product extends Page {
/**
* Flag for denoting if this is the first time this Product is being written.
*
* @var Boolean
*/
protected $firstWrite = false;
/**
* DB fields for Product.
*
* @var Array
*/
private static $db = array(
'Price' => 'Decimal(19,4)',
'Currency' => 'Varchar(3)',
'StockCode' => 'Varchar(255)',
'Stock' => 'Int',
'Featured' => 'Boolean',
'YouTubeID' => 'Varchar(255)'
);
/**
* Actual price in base currency, can decorate to apply discounts etc.
*
* @return Price
*/
public function Amount() {
// TODO: Multi currency
$shopConfig = ShopConfig::current_shop_config();
$amount = new Price();
$amount->setAmount($this->Price);
$amount->setCurrency($shopConfig->BaseCurrency);
$amount->setSymbol($shopConfig->BaseCurrencySymbol);
//Transform amount for applying discounts etc.
$this->extend('updateAmount', $amount);
return $amount;
}
/**
* Display price, can decorate for multiple currency etc.
*
* @return Price
*/
public function Price() {
$amount = $this->Amount();
//Transform price here for display in different currencies etc.
$this->extend('updatePrice', $amount);
return $amount;
}
/**
* Has many relations for Product.
*
* @var Array
*/
private static $has_many = array(
'Attributes' => 'Attribute',
'Options' => 'Option',
'Variations' => 'Variation'
);
/**
* Defaults for Product
*
* @var Array
*/
private static $defaults = array(
'ParentID' => -1,
'Stock' => 999
);
/**
* Summary fields for displaying Products in the CMS
*
* @var Array
*/
private static $summary_fields = array(
'Amount.Nice' => 'Price',
'Title' => 'Title'
);
private static $searchable_fields = array(
'Title' => array(
'field' => 'TextField',
'filter' => 'PartialMatchFilter',
'title' => 'Name'
)
);
/**
* Set firstWrite flag if this is the first time this Product is written.
*
* @see SiteTree::onBeforeWrite()
* @see Product::onAfterWrite()
*/
public function onBeforeWrite() {
parent::onBeforeWrite();
if (!$this->ID) $this->firstWrite = true;
//Save in base currency
$shopConfig = ShopConfig::current_shop_config();
$this->Currency = $shopConfig->BaseCurrency;
}
/**
* Unpublish products if they get deleted, such as in product admin area
*
* @see SiteTree::onAfterDelete()
*/
public function onAfterDelete() {
parent::onAfterDelete();
if ($this->isPublished()) {
$this->doUnpublish();
}
}
/**
* Set some CMS fields for managing Products
*
* @see Page::getCMSFields()
* @return FieldList
*/
public function getCMSFields() {
$shopConfig = ShopConfig::current_shop_config();
$fields = parent::getCMSFields();
//Product fields
$fields->addFieldToTab('Root.Main', new PriceField('Price'), 'Content');
$fields->addFieldToTab('Root.Main', new TextField('StockCode'), 'Price');
$fields->addFieldToTab('Root.Main', new TextField('Stock'), 'Price');
$fields->addFieldToTab('Root.Main', new CheckBoxField('Featured'), 'Content');
$fields->addFieldToTab('Root.Images', new TextField('YouTubeID', 'YouTube Video ID (Taken from the end of the video url. ie https://www.youtube.com/watch?v=ABC123 would be ABC123)'));
//Replace URL Segment field
if ($this->ParentID == -1) {
$urlsegment = new SiteTreeURLSegmentField("URLSegment", 'URLSegment');
$baseLink = Controller::join_links(Director::absoluteBaseURL(), 'product/');
$url = (strlen($baseLink) > 36) ? "..." .substr($baseLink, -32) : $baseLink;
$urlsegment->setURLPrefix($url);
$fields->replaceField('URLSegment', $urlsegment);
}
if ($this->isInDB()) {
//Product attributes
$listField = new GridField(
'Attributes',
'Attributes',
$this->Attributes(),
GridFieldConfig_BasicSortable::create()
);
$fields->addFieldToTab('Root.Attributes', $listField);
//Product variations
$attributes = $this->Attributes();
if ($attributes && $attributes->exists()) {
//Remove the stock level field if there are variations, each variation has a stock field
$fields->removeByName('Stock');
$variationFieldList = array();
foreach ($attributes as $attribute) {
$variationFieldList['AttributeValue_'.$attribute->ID] = $attribute->Title;
}
$variationFieldList = array_merge($variationFieldList, singleton('Variation')->summaryFields());
$config = GridFieldConfig_HasManyRelationEditor::create();
$dataColumns = $config->getComponentByType('GridFieldDataColumns');
$dataColumns->setDisplayFields($variationFieldList);
$listField = new GridField(
'Variations',
'Variations',
$this->Variations(),
$config
);
$fields->addFieldToTab('Root.Variations', $listField);
}
}
//Ability to edit fields added to CMS here
$this->extend('updateProductCMSFields', $fields);
if ($warning = ShopConfig::base_currency_warning()) {
$fields->addFieldToTab('Root.Main', new LiteralField('BaseCurrencyWarning',
'<p class="message warning">'.$warning.'</p>'
), 'Title');
}
return $fields;
}
/**
* Get the URL for this Product, products that are not part of the SiteTree are
* displayed by the {@link Product_Controller}.
*
* @see SiteTree::Link()
* @see Product_Controller::show()
* @return String
*/
public function Link($action = null) {
if ($this->ParentID > -1) {
return parent::Link($action);
}
return Controller::join_links(Director::baseURL() . 'product/', $this->RelativeLink($action));
}
/**
* A product is required to be added to a cart with a variation if it has attributes.
* A product with attributes needs to have some enabled {@link Variation}s
*
* @return Boolean
*/
public function requiresVariation() {
$attributes = $this->Attributes();
return $attributes && $attributes->exists();
}
/**
* Get options for an Attribute of this Product.
*
* @param Int $attributeID
* @return ArrayList
*/
public function getOptionsForAttribute($attributeID) {
$options = new ArrayList();
$variations = $this->Variations();
if ($variations && $variations->exists()) foreach ($variations as $variation) {
if ($variation->isEnabled()) {
$option = $variation->getOptionForAttribute($attributeID);
if ($option) $options->push($option);
}
}
$options = $options->sort('SortOrder');
return $options;
}
/**
* Validate the Product before it is saved in {@link ShopAdmin}.
*
* @see DataObject::validate()
* @return ValidationResult
*/
public function validate() {
$result = new ValidationResult();
//If this is being published, check that enabled variations exist if they are required
$request = Controller::curr()->getRequest();
$publishing = ($request && $request->getVar('action_publish')) ? true : false;
if ($publishing && $this->requiresVariation()) {
$variations = $this->Variations();
if (!in_array('Enabled', $variations->map('ID', 'Status')->toArray())) {
$result->error(
'Cannot publish product when no variations are enabled. Please enable some product variations and try again.',
'VariationsDisabledError'
);
}
}
return $result;
}
}
任何人都可以建议我在这里做错了什么或用替代方法来实现我想要实现的目标吗？
干杯
以防万一有人仍然遇到同样的问题。 因此，如果您安装了用于 swipestripe 的产品类别模块，就会发生这种情况。 其原因是该模块中 ProductCategory.php 文件中 ProductCategory_Extension 类中的 private static $searchable_fields 。只需注释掉该字段即可。 这是因为 dataobject 类试图将 Category 统计为一个类 - 这显然不存在。
如果有时间，我会修复它并推送到 github。只是想在这里更新，这样其他人就不会浪费时间去挠头为什么它不起作用。