已經發送了頭解決 我解決了這個問題與喬納森·赫西幫助 我改變了這一行:Magento 1.7無法發送標題;在
$mModel->getCollection()->load($mId)->getData();
此:
$mModel->getCollection()->addFieldToFilter('met_id',$Id)->getSelect();
問題
我創建的自定義模塊其中添加了標籤到管理產品頁面和附加文本字段。 當我試圖挽救這個產品,我得到這個錯誤:
a:5:{i:0;s:140:"Cannot send headers; headers already sent in /home/nano/domains/mydomain/public_html/gw/lib/Varien/Data/Collection/Db.php, line 693";i:1;s:1630:"#0 /home/nano/domains/mydomain/public_html/gw/lib/Zend/Controller/Response/Abstract.php(148): Zend_Controller_Response_Abstract->canSendHeaders(true)...
我看到這個錯誤在Observer.php創建:
$mId = $collection['m_id'];
$mModel->getCollection()->load($mId)->getData(); <-- this line give an error
$data['met_id'] = $mId;
$data['product_id'] = $product->getId();
$data['metf1'] = $this->_getRequest()->getPost('f1');
$mModel->setData($data);
$mModel->save();
你有什麼想法如何解決這一問題?
編輯 內容管理模板標籤文件:行$mModel->getCollection()->load($mId)->getData();
後
<?php
$product = Mage::registry('current_product');
$mItem = Mage::getModel('mmodel/mmodel')->getCollection()->
addFilter('product_id',$product->getId())->getFirstItem();
echo '<div class="input-field">
<label for="f1">File</label>
<input type="text" class="input-text" name="f1" id="f1" value='.$mItem['f1'].' />
</div>';
調試回溯從Observer.php
SELECT `main_table`.* FROM `mmodel` AS `main_table`
Debug Backtrace:
File Line Function
/home/nano/domains/mydomain/public_html/gw/app/code/local/GW/MModel/Model/Observer.php 42 printDebugBacktrace
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Model/App.php 1338 saveProductTabData
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Model/App.php 1317 _callObserverMethod
/home/nano/domains/mydomain/public_html/gw/app/Mage.php 468 dispatchEvent
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Model/Abstract.php 466 dispatchEvent
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Catalog/Model/Product.php 548 _afterSave
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Model/Abstract.php 319 _afterSave
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Adminhtml/controllers/Catalog/ProductController.php 714 save
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Controller/Varien/Action.php 419 saveAction
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php 250 dispatch
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Controller/Varien/Front.php 176 match
/home/nano/domains/mydomain/public_html/gw/app/code/core/Mage/Core/Model/App.php 354 dispatch
/home/nano/domains/mydomain/public_html/gw/app/Mage.php 704 run
/home/nano/domains/mydomain/public_html/gw/index.php 87 run
或許你在'?>'標籤之後在源文件的結尾留下了一些空格,或者在發送標題之前使用'echo'命令開始輸出。 – 2013-03-27 22:06:00
感謝您的建議。 但我檢查了所有模塊文件的空白幾次,我沒有找到任何空格。也許管理員模板負責這個問題。請見,我編輯帖子。 – Krzysztof 2013-03-27 22:14:58
這是一個很奇怪的考慮Magento的MVC架構。你能夠得到一個完整的堆棧跟蹤? – 2013-03-27 22:25:35