这是我发现为可自定义选项设置默认值的最简洁的方法：
（基于@TrytoFly答案）
注意：我假设你在一个已经创建的模块上工作，我称之为Vendor_Module。
1.将is_default列添加到catalog_product_option_type_value表
应用/代码/供应商/模块/设置/UpgradeSchema.php
<?php
namespace Vendor\Module\Setup;
use Magento\Framework\Setup\UpgradeSchemaInterface;
use Magento\Framework\Setup\ModuleContextInterface;
use Magento\Framework\Setup\SchemaSetupInterface;
/**
* @codeCoverageIgnore
*/
class UpgradeSchema implements UpgradeSchemaInterface
{
/**
* {@inheritdoc}
* @SuppressWarnings(PHPMD.ExcessiveMethodLength)
*/
public function upgrade(SchemaSetupInterface $setup, ModuleContextInterface $context)
{
if (version_compare($context->getVersion(), '2.0.1') < 0) {
$setup->getConnection()->addColumn(
$setup->getTable('catalog_product_option_type_value'),
'is_default',
[
'type' => \Magento\Framework\DB\Ddl\Table::TYPE_SMALLINT,
'length' => 1,
'unsigned' => true,
'nullable' => false,
'default' => '0',
'comment' => 'Defines if Is Default'
]
);
}
}
}
注意：不要忘记根据模块更改版本
2.定义并创建一个插件以将复选框元素添加到后台
应用程序/代码/供应商/模块/etc/adminhtml/di.xml
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<type name="Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\CustomOptions">
<plugin name="vendor_module_custom_options_ui_plugin"
type="Vendor\Module\Plugin\CustomOptionsUiPlugin" />
</type>
</config>
应用/代码/供应商/模块/插件/CustomOptionsUiPlugin.php
<?php
namespace Vendor\Module\Plugin;
use Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\CustomOptions;
use Magento\Ui\Component\Form\Field;
use Magento\Ui\Component\Form\Element\Checkbox;
use Magento\Ui\Component\Form\Element\DataType\Number;
/**
* Data provider for "Customizable Options" panel
*/
class CustomOptionsUiPlugin
{
/**
* Field values
*/
const FIELD_IS_DEFAULT = 'is_default';
/**
* @param \Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\CustomOptions $subject
* @param bool $meta
* @return bool
*/
public function afterModifyMeta(CustomOptions $subject, $meta) {
$result = $meta;
$result[CustomOptions::GROUP_CUSTOM_OPTIONS_NAME]['children']
[CustomOptions::GRID_OPTIONS_NAME]['children']['record']['children']
[CustomOptions::CONTAINER_OPTION]['children']
[CustomOptions::GRID_TYPE_SELECT_NAME]['children']['record']['children']
[static::FIELD_IS_DEFAULT] = $this->getIsDefaultFieldConfig(70);
return $result;
}
/**
* Get config for checkbox field used for default values
*
* @param int $sortOrder
* @return array
*/
protected function getIsDefaultFieldConfig($sortOrder)
{
return [
'arguments' => [
'data' => [
'config' =>[
'label' => __('Default'),
'componentType' => Field::NAME,
'formElement' => Checkbox::NAME,
'dataScope' => static::FIELD_IS_DEFAULT,
'dataType' => Number::NAME,
'additionalClasses' => 'admin__field-small',
'sortOrder' => $sortOrder,
'value' => '0',
'valueMap' => [
'true' => '1',
'false' => '0'
]
],
],
],
];
}
}
注意：这里我们使用Magento\Ui\Component\Form\Element\Checkbox而不是Magento\Ui\Component\Form\Element\Radio组件，因为Magento似乎从未在其Form Elements中定义它。
见vendor\magento\module-ui\view\base\ui_component\etc\definition.xml第112行
3.覆盖Magento\Catalog\Block\Product\View\Options\Type\Select以检查已选择为“默认元素”的元素。
应用程序/代码/供应商/模块/etc/adminhtml/di.xml
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<preference for="Magento\Catalog\Block\Product\View\Options\Type\Select"
type="Vendor\Module\Block\Rewrite\Catalog\Product\View\Options\Type\Select" />
</config>
应用程序/代码/供应商/模块/块/重写/目录/产品/视图/选项/类型/Select.php
<?php
namespace Vendor\Module\Block\Rewrite\Catalog\Product\View\Options\Type;
/**
* Product options text type block
*/
class Select extends \Magento\Catalog\Block\Product\View\Options\Type\Select
{
/**
* Return html for control element
*
* @return string
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
* @SuppressWarnings(PHPMD.NPathComplexity)
* @SuppressWarnings(PHPMD.ExcessiveMethodLength)
*/
public function getValuesHtml()
{
$_option = $this->getOption();
$configValue = $this->getProduct()->getPreconfiguredValues()->getData('options/' . $_option->getId());
$store = $this->getProduct()->getStore();
$this->setSkipJsReloadPrice(1);
// Remove inline prototype onclick and onchange events
if ($_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_DROP_DOWN ||
$_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_MULTIPLE
) {
$require = $_option->getIsRequire() ? ' required' : '';
$extraParams = '';
$select = $this->getLayout()->createBlock(
\Magento\Framework\View\Element\Html\Select::class
)->setData(
[
'id' => 'select_' . $_option->getId(),
'class' => $require . ' product-custom-option admin__control-select'
]
);
if ($_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_DROP_DOWN) {
$select->setName('options[' . $_option->getId() . ']')->addOption('', __('-- Please Select --'));
} else {
$select->setName('options[' . $_option->getId() . '][]');
$select->setClass('multiselect admin__control-multiselect' . $require . ' product-custom-option');
}
foreach ($_option->getValues() as $_value) {
$priceStr = $this->_formatPrice(
[
'is_percent' => $_value->getPriceType() == 'percent',
'pricing_value' => $_value->getPrice($_value->getPriceType() == 'percent'),
],
false
);
if($_value->getData('is_default') == true && !$configValue){
$configValue = $_value->getOptionTypeId();
}
$select->addOption(
$_value->getOptionTypeId(),
$_value->getTitle() . ' ' . strip_tags($priceStr) . '',
['price' => $this->pricingHelper->currencyByStore($_value->getPrice(true), $store, false)]
);
}
if ($_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_MULTIPLE) {
$extraParams = ' multiple="multiple"';
}
if (!$this->getSkipJsReloadPrice()) {
$extraParams .= ' onchange="opConfig.reloadPrice()"';
}
$extraParams .= ' data-selector="' . $select->getName() . '"';
$select->setExtraParams($extraParams);
if ($configValue) {
$select->setValue($configValue);
}
return $select->getHtml();
}
if ($_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_RADIO ||
$_option->getType() == \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_CHECKBOX
) {
$selectHtml = '<div class="options-list nested" id="options-' . $_option->getId() . '-list">';
$require = $_option->getIsRequire() ? ' required' : '';
$arraySign = '';
switch ($_option->getType()) {
case \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_RADIO:
$type = 'radio';
$class = 'radio admin__control-radio';
if (!$_option->getIsRequire()) {
$selectHtml .= '<div class="field choice admin__field admin__field-option">' .
'<input type="radio" id="options_' .
$_option->getId() .
'" class="' .
$class .
' product-custom-option" name="options[' .
$_option->getId() .
']"' .
' data-selector="options[' . $_option->getId() . ']"' .
($this->getSkipJsReloadPrice() ? '' : ' onclick="opConfig.reloadPrice()"') .
' value="" checked="checked" /><label class="label admin__field-label" for="options_' .
$_option->getId() .
'"><span>' .
__('None') . '</span></label></div>';
}
break;
case \Magento\Catalog\Api\Data\ProductCustomOptionInterface::OPTION_TYPE_CHECKBOX:
$type = 'checkbox';
$class = 'checkbox admin__control-checkbox';
$arraySign = '[]';
break;
}
$count = 1;
foreach ($_option->getValues() as $_value) {
$count++;
$priceStr = $this->_formatPrice(
[
'is_percent' => $_value->getPriceType() == 'percent',
'pricing_value' => $_value->getPrice($_value->getPriceType() == 'percent'),
]
);
$htmlValue = $_value->getOptionTypeId();
if ($arraySign) {
$checked = is_array($configValue) && in_array($htmlValue, $configValue) ? 'checked' : '';
} else {
$checked = $configValue == $htmlValue ? 'checked' : '';
}
$dataSelector = 'options[' . $_option->getId() . ']';
if ($arraySign) {
$dataSelector .= '[' . $htmlValue . ']';
}
$selectHtml .= '<div class="field choice admin__field admin__field-option' .
$require .
'">' .
'<input type="' .
$type .
'" class="' .
$class .
' ' .
$require .
' product-custom-option"' .
($this->getSkipJsReloadPrice() ? '' : ' onclick="opConfig.reloadPrice()"') .
' name="options[' .
$_option->getId() .
']' .
$arraySign .
'" id="options_' .
$_option->getId() .
'_' .
$count .
'" value="' .
$htmlValue .
'" ' .
$checked .
' data-selector="' . $dataSelector . '"' .
' price="' .
$this->pricingHelper->currencyByStore($_value->getPrice(true), $store, false) .
'" />' .
'<label class="label admin__field-label" for="options_' .
$_option->getId() .
'_' .
$count .
'"><span>' .
$_value->getTitle() .
'</span> ' .
$priceStr .
'</label>';
$selectHtml .= '</div>';
}
$selectHtml .= '</div>';
return $selectHtml;
}
}
}
4.升级模块版本并更新数据库
升级您setup_version的app/code/Vendor/Module/etc/module.xml
更新你version的 app/code/Vendor/Module/composer.json
运行以下命令：
php bin/magento cache:clean
php bin/magento setup:upgrade
