Where is the function when click on "Manage Categories" in admin panel

Question

I am checking in admin panel, when admin click on "Manage Categories" page is redirect to other location.I want to to know where is the function when click on "Manage Categories".

Answer 1

This function is written in

app\code\core\Mage\Adminhtml\controllers\Catalog\CategoryController.php

 public function indexAction()
    {
        $this->_forward('edit');
    }

the it goes to

public function editAction()
    {
        $params['_current'] = true;
        $redirect = false;

        $storeId = (int) $this->getRequest()->getParam('store');
        $parentId = (int) $this->getRequest()->getParam('parent');
        $_prevStoreId = Mage::getSingleton('admin/session')
            ->getLastViewedStore(true);

        if (!empty($_prevStoreId) && !$this->getRequest()->getQuery('isAjax')) {
            $params['store'] = $_prevStoreId;
            $redirect = true;
        }

        $categoryId = (int) $this->getRequest()->getParam('id');
        $_prevCategoryId = Mage::getSingleton('admin/session')
            ->getLastEditedCategory(true);


        if ($_prevCategoryId
            && !$this->getRequest()->getQuery('isAjax')
            && !$this->getRequest()->getParam('clear')) {
           // $params['id'] = $_prevCategoryId;
             $this->getRequest()->setParam('id',$_prevCategoryId);
            //$redirect = true;
        }

         if ($redirect) {
            $this->_redirect('*/*/edit', $params);
            return;
        }

        if ($storeId && !$categoryId && !$parentId) {
            $store = Mage::app()->getStore($storeId);
            $_prevCategoryId = (int) $store->getRootCategoryId();
            $this->getRequest()->setParam('id', $_prevCategoryId);
        }

        if (!($category = $this->_initCategory(true))) {
            return;
        }

        $this->_title($categoryId ? $category->getName() : $this->__('New Category'));

        /**
         * Check if we have data in session (if duering category save was exceprion)
         */
        $data = Mage::getSingleton('adminhtml/session')->getCategoryData(true);
        if (isset($data['general'])) {
            $category->addData($data['general']);
        }

        /**
         * Build response for ajax request
         */
        if ($this->getRequest()->getQuery('isAjax')) {
            // prepare breadcrumbs of selected category, if any
            $breadcrumbsPath = $category->getPath();
            if (empty($breadcrumbsPath)) {
                // but if no category, and it is deleted - prepare breadcrumbs from path, saved in session
                $breadcrumbsPath = Mage::getSingleton('admin/session')->getDeletedPath(true);
                if (!empty($breadcrumbsPath)) {
                    $breadcrumbsPath = explode('/', $breadcrumbsPath);
                    // no need to get parent breadcrumbs if deleting category level 1
                    if (count($breadcrumbsPath) <= 1) {
                        $breadcrumbsPath = '';
                    }
                    else {
                        array_pop($breadcrumbsPath);
                        $breadcrumbsPath = implode('/', $breadcrumbsPath);
                    }
                }
            }

            Mage::getSingleton('admin/session')
                ->setLastViewedStore($this->getRequest()->getParam('store'));
            Mage::getSingleton('admin/session')
                ->setLastEditedCategory($category->getId());
//            $this->_initLayoutMessages('adminhtml/session');
            $this->loadLayout();

            $eventResponse = new Varien_Object(array(
                'content' => $this->getLayout()->getBlock('category.edit')->getFormHtml()
                    . $this->getLayout()->getBlock('category.tree')
                    ->getBreadcrumbsJavascript($breadcrumbsPath, 'editingCategoryBreadcrumbs'),
                'messages' => $this->getLayout()->getMessagesBlock()->getGroupedHtml(),
            ));

            Mage::dispatchEvent('category_prepare_ajax_response', array(
                'response' => $eventResponse,
                'controller' => $this
            ));

            $this->getResponse()->setBody(
                Mage::helper('core')->jsonEncode($eventResponse->getData())
            );

            return;
        }

        $this->loadLayout();
        $this->_setActiveMenu('catalog/categories');
        $this->getLayout()->getBlock('head')->setCanLoadExtJs(true)
            ->setContainerCssClass('catalog-categories');

        $this->_addBreadcrumb(Mage::helper('catalog')->__('Manage Catalog Categories'),
             Mage::helper('catalog')->__('Manage Categories')
        );

        $block = $this->getLayout()->getBlock('catalog.wysiwyg.js');
        if ($block) {
            $block->setStoreId($storeId);
        }

        $this->renderLayout();
    }