我安装了一个模块扩展，它在管理员中抛出一个 fatal error “ fatal error :类‘Mage_Giftcards_Helper_Data’在 ..../app/Mage.php 中找不到，第 546 行”。

我已提交此链接 https://stackoverflow.com/a/9191286/2919940还有这个链接https://magento.stackexchange.com/a/7133/3693

但是我有

<global>
<helpers>
        <giftcards>
            <class>Webtex_Giftcards_Helper</class>
        </giftcards>
    </helpers>
</global>

在我的 config.xml 中，我有这个类

class Webtex_Giftcards_Helper_Data extends Mage_Core_Helper_Data{
// my methods
}

在“/app/code/local/Webtex/Giftcards/Helper/Data.php”路径中声明。

我禁用了编译器并通过创建空的“var/cache”目录清除了缓存。

我到处都发现 config.xml 应该定义辅助类，而 Data.php 应该声明辅助类。

但我的情况下两者都有，这个错误的原因可能是什么？我也在新安装的 magento 上测试了该模块，

Magento 版本是 1.7.0.2

请为这个错误提供帮助？？如果存在类名冲突，我们该如何调试？？

更新: 这是我的 app/etc/modules/Webtex_Giftcards.xml 文件。

<?xml version="1.0"?>
<config>
    <modules>
        <Webtex_Giftcards>
        <active>true</active>
        <codePool>local</codePool>
        <name>Webtex Gift Cards</name>
    </Webtex_Giftcards>
</modules>
</config>

这是我的 system.xml 文件

<?xml version="1.0"?>
<config>
<tabs>
    <webtex translate="label" module="giftcards">
        <label>WebTex</label>
        <sort_order>300</sort_order>
    </webtex>
</tabs>
<sections>
    <giftcards module="giftcards">
        <tab>webtex</tab>
        <label>Gift Cards</label>
        <frontend_type>text</frontend_type>
        <sort_order>200</sort_order>
        <show_in_default>1</show_in_default>
        <show_in_website>1</show_in_website>
        <show_in_store>1</show_in_store>
        <groups>
            <default module="giftcards">
                <label>Defaults</label>
                <frontend_type>text</frontend_type>
                <sort_order>10</sort_order>
                <show_in_default>1</show_in_default>
                <show_in_website>1</show_in_website>
                <show_in_store>1</show_in_store>
                <fields>
                    <min_card_value>
                        <label>Min Gift Card Value</label>
                        <frontend_type>text</frontend_type>
                        <sort_order>20</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </min_card_value>
                    <max_card_value>
                        <label>Max Gift Card Value</label>
                        <frontend_type>text</frontend_type>
                        <sort_order>21</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </max_card_value>
                    <show_in_shopping_cart>
                        <label>Show In Shopping Cart Page</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_yesno</source_model>
                        <sort_order>22</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </show_in_shopping_cart>
                    <show_as_payment_method>
                        <label>Show As Payment Method</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_yesno</source_model>
                        <sort_order>22</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </show_as_payment_method>
                    <show_mail_delivery_date_field>
                        <label>Show email delivery date field</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_yesno</source_model>
                        <sort_order>23</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </show_mail_delivery_date_field>
                </fields>
            </default>
            <email module="giftcards">
                <label>Email Options</label>
                <frontend_type>text</frontend_type>
                <sort_order>50</sort_order>
                <show_in_default>1</show_in_default>
                <show_in_website>1</show_in_website>
                <show_in_store>1</show_in_store>
                <fields>
                    <card_picture>
                        <label>Use default GiftCard picture for Email</label>
                        <frontend_type>select</frontend_type>
                    <source_model>adminhtml/system_config_source_yesno</source_model>
                        <sort_order>24</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                        <comment>Set "No" for use product picture</comment>
                    </card_picture>
                    <email_template>
                        <label>Template for e-mail</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_email_template</source_model>
                        <sort_order>30</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </email_template>
                    <print_template>
                        <label>Template for print</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_email_template</source_model>
                        <sort_order>30</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </print_template>
                    <offline_template>
                        <label>Template for offline</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_email_template</source_model>
                        <sort_order>30</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </offline_template>
                    <confirm_template>
                        <label>Template for confirmation</label>
                        <frontend_type>select</frontend_type>
                        <source_model>adminhtml/system_config_source_email_template</source_model>
                        <sort_order>30</sort_order>
                        <show_in_default>1</show_in_default>
                        <show_in_website>1</show_in_website>
                        <show_in_store>1</show_in_store>
                    </confirm_template>
                </fields>
            </email>
        </groups>
    </giftcards>
</sections>
</config>

这是我的 config.xml 文件。

<?xml version="1.0"?>
<config>
<modules>
    <Webtex_Giftcards>
        <version>3.3.1</version>
    </Webtex_Giftcards>
</modules>
<admin>
    <routers>
        <giftcards>
            <use>admin</use>
            <args>
                <module>Webtex_Giftcards</module>
                <frontName>giftcards</frontName>
            </args>
        </giftcards>
        <adminhtml>
            <args>
                <modules>
                    <Webtex_Giftcards before="Mage_Adminhtml">Webtex_Giftcards_Adminhtml</Webtex_Giftcards>
                </modules>
            </args>
        </adminhtml>
    </routers>
</admin>
<frontend>
    <routers>
        <checkout>
            <args>
                <modules>
                    <Webtex_Giftcards before="Mage_Checkout">Webtex_Giftcards</Webtex_Giftcards>
                </modules>
            </args>
        </checkout>
    </routers>
    <layout>
        <updates>
            <giftcards>
                <file>giftcards.xml</file>
            </giftcards>
        </updates>
    </layout>
    <translate>
        <modules>
            <Webtex_Giftcards>
                <files>
                    <default>Webtex_Giftcards.csv</default>
                </files>
            </Webtex_Giftcards>
        </modules>
    </translate>
</frontend>
<global>
    <rewrite>
        <giftcards_giftcards_index>
            <from><![CDATA[#^/customer/giftcards/#]]></from>
            <to>/giftcards/giftcards/</to>
        </giftcards_giftcards_index>
        <giftcards_giftcards_balance>
            <from><![CDATA[#^/customer/giftcards/balance/#]]></from>
            <to>/giftcards/giftcards/balance/</to>
        </giftcards_giftcards_balance>
        <giftcards_giftcards_print>
            <from><![CDATA[#^/customer/giftcards/print/#]]></from>
            <to>/giftcards/giftcards/print/</to>
        </giftcards_giftcards_print>
        <giftcards_giftcards_apply>
            <from><![CDATA[#^/customer/giftcards/apply/#]]></from>
            <to>/giftcards/giftcards/apply/</to>
        </giftcards_giftcards_apply>
    </rewrite>
    <models>
        <giftcards>
            <class>Webtex_Giftcards_Model</class>
            <resourceModel>giftcards_mysql4</resourceModel>
        </giftcards>
        <giftcards_mysql4>
            <class>Webtex_Giftcards_Model_Mysql4</class>
            <entities>
                <giftcards>
                    <table>giftcards_card</table>
                </giftcards>
                <cardslist>
                    <table>giftcards_cardlist</table>
                </cardslist>
                <order>
                    <table>giftcard_order</table>
                </order>
            </entities>
        </giftcards_mysql4>
        <sales>
            <rewrite>
                <order>Webtex_Giftcards_Model_Sales_Order</order>
            </rewrite>
        </sales>
    </models>
    <resources>
        <giftcards_setup>
            <setup>
                <module>Webtex_Giftcards</module>
                <class>Mage_Catalog_Model_Resource_Eav_Mysql4_Setup</class>
            </setup>
            <connection>
                <use>core_setup</use>
            </connection>
        </giftcards_setup>
    </resources>
    <helpers>
        <giftcards>
            <class>Webtex_Giftcards_Helper</class>
        </giftcards>
    </helpers>
    <blocks>
        <giftcards>
            <class>Webtex_Giftcards_Block</class>
        </giftcards>
    </blocks>
    <events>
        <catalog_product_save_before>
            <observers>
                <webtex_giftcards_observer_catalog_product_save_after>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>catalogProductSaveBefore</method>
                </webtex_giftcards_observer_catalog_product_save_after>
            </observers>
        </catalog_product_save_before>
        <order_cancel_after>
            <observers>
                <webtex_giftcards_observer_sales_order_cancel_after>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>salesOrderCancelAfter</method>
                </webtex_giftcards_observer_sales_order_cancel_after>
            </observers>
        </order_cancel_after>
        <sales_order_payment_refund>
            <observers>
                <webtex_giftcards_observer_sales_order_creditmemo_refund>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>saleOrderPaymentRefund</method>
                </webtex_giftcards_observer_sales_order_creditmemo_refund>
            </observers>
        </sales_order_payment_refund>
        <sales_order_save_after>
            <observers>
                <webtex_giftcards_observer_sales_order_save_after>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>salesOrderSaveAfter</method>
                </webtex_giftcards_observer_sales_order_save_after>
            </observers>
        </sales_order_save_after>


        <sales_model_service_quote_submit_after>
            <observers>
                <webtex_giftcards_observer_checkout_type_onepage_save_order_after>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>checkoutTypeOnepageSaveOrderAfter</method>
                </webtex_giftcards_observer_checkout_type_onepage_save_order_after>
            </observers>
        </sales_model_service_quote_submit_after>

        <core_block_abstract_to_html_after>
            <observers>
                <webtex_giftcards_observer_checkpriceiszero>
                    <type>singleton</type>
                    <class>giftcards/observer</class>
                    <method>checkpriceiszero</method>
                </webtex_giftcards_observer_checkpriceiszero>
            </observers>
        </core_block_abstract_to_html_after>
        <sales_quote_collect_totals_after>
            <observers>
                <webtex_giftcards_discount_observer_testdiscountquote>
                    <type>singleton</type>
                    <class>giftcards/discount_observer</class>
                    <method>testDiscountQuote</method>
                </webtex_giftcards_discount_observer_testdiscountquote>
            </observers>
        </sales_quote_collect_totals_after>
    </events>
    <template>
        <email>
            <giftcards_email_email_template translate="label" module="giftcards">
                <label>Gift Card E-mail</label>
                <file>giftcard_email.html</file>
                <type>html</type>
            </giftcards_email_email_template>
            <giftcards_email_print_template translate="label" module="giftcards">
                <label>Gift Card Print</label>
                <file>giftcard_print.html</file>
                <type>html</type>
            </giftcards_email_print_template>
            <giftcards_email_offline_template translate="label" module="giftcards">
                <label>Gift Card Offline</label>
                <file>giftcard_offline.html</file>
                <type>html</type>
            </giftcards_email_offline_template>
            <giftcards_email_confirm_template translate="label" module="giftcards">
                <label>Gift Card Confirm</label>
                <file>giftcard_confirm.html</file>
                <type>html</type>
            </giftcards_email_confirm_template>
        </email>
    </template>
    <catalog>
        <product>
            <type>
                <giftcards module="giftcards">
                    <label>Gift Card</label>
                    <model>giftcards/product_type_giftcards</model> 
                    <price_model>giftcards/product_price</price_model>
                    <is_qty>1</is_qty>
                    <composite>0</composite>
                </giftcards>
            </type>
        </product>
    </catalog>
    <sales>
        <quote>
            <totals>
                <discount>
                    <class>giftcards/discount</class>
                    <after>subtotal,shipping</after>
                    <before>grand_total</before>
                </discount>
            </totals>
        </quote>
    </sales>
</global>
<adminhtml>
    <sales>
        <order>
            <create>
                <available_product_types>
                    <giftcards />
                </available_product_types>
            </create>
        </order>
    </sales>
</adminhtml>
<default>
    <giftcards>
        <email>
            <email_template>giftcards_email_email_template</email_template>
            <print_template>giftcards_email_print_template</print_template>
            <offline_template>giftcards_email_offline_template</offline_template>
            <confirm_template>giftcards_email_confirm_template</confirm_template>
        </email>
    </giftcards>
</default>
<adminhtml><layout><updates><blog><file>webtex/giftcards/giftcards.xml</file></blog></updates></layout></adminhtml>
<crontabs>
    <jobs>
        <schedule><cron_expr>0 1 * * *</cron_expr></schedule>
        <run><model>giftcards/observer::sendEmailByDeliveryDate</model></run>
    </jobs>
</crontabs>
</config>

谢谢

最佳答案

我的回答与@Pedram Behroozi 的回答非常相似，如果不是因为奇怪的评论声誉限制，我可能会把它添加为评论。

当我遇到这个问题时，是因为混淆了 adminhtml.xml 中的“module”属性。

<config>
  <menu>
    <catalog>
      <children>
        <productfeed translate="title" module="productfeed">
          <title>Product Data Feed</title>
          <action>adminhtml/productfeed/</action>
          <sort_order>90</sort_order>
        </productfeed>
      </children>
    </catalog>
  </menu>
</config>

Pedram 说模块名称必须小写且没有 namespace 时，他完全是不正确的。当您提供“翻译”属性时，相应的“模块”属性会告诉 Magento 使用什么助手进行翻译。因此，重要的是它与 config.xml 中 helpers 节点内的节点名称完全匹配。我的错误是因为在该节点中我包含了命名空间:

<config>
  <global>
    <helpers>
      <etw_productfeed>
        <class>Etw_Productfeed_Helper</class>
      </etw_productfeed>
    </helpers>
  </global>
</config>

在 Alan Storm 的文章中 "Admin Hello World Revisited"你可以看到他在他的模块引用中使用了命名空间，并且仍然有效。所以无论哪种方式都可以，只要 adminhtml.xml 中的内容与 config.xml 中的内容相匹配。

关于php - Magento : Fatal error: Class 'Mage_Giftcards_Helper_Data' not found in . ..../app/Mage.php 第 546 行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19590164/