API CHANGE: first commit

_config.php

@@ -0,0 +1,20 @@
+<?php
+
+/* 
+Requires XSLT-Processor, i.e.
+
+>> sudo apt-get install php5-xsl
+
+*/
+
+// Change this field to anything except 'setup' do set the configuration fields 
+// to read-only.
+CataloguePage::set_site_status('setup');
+
+Director::addRules(100, array(
+	'admin/metadata' => "MetadataAdmin",
+));
+
+
+// Add model admin for the metadata entries.
+CMSMenu::add_menu_item("metadata", 'Metadata', 'admin/metadata', "MetadataAdmin" );

code/BrowsePage.php

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+<?php
+/**
+ * This file defines the implementation of the Browse - Page type.
+ *
+ * @author Rainer Spittel (rainer at silverstripe dot com)
+ * @package geocatalog
+ */
+
+/**
+ * BrowsePage implements the page type to browse GeoNetwork records.
+ *
+ * This page type is used to browse GeoNetwork data and visualise the results.
+ */
+class BrowsePage extends CataloguePage {
+
+	/**
+	 * Overwrites {@link SiteTree::getCMSFields}.
+	 * 
+	 * Appends a GeoNetwork JavaScript validator the the CMS backend.
+	 *
+	 * @return FieldSet
+	 */ 
+	function getCMSFields() {
+		Requirements::javascript('geocatalog/javascript/GeonetworkUrlValidator.js');	
+
+		$fields = parent::getCMSFields();
+		return $fields;
+	} 
+}
+
+/**
+ * Controller Class for BrowsePage
+ *
+ * Page controller class for Browse-Page {@link BrowsePage}. The controller
+ * class handles the requests and delegates the requests to the page instance
+ * as well as to the available GeoNetwork node.
+ */
+class BrowsePage_Controller extends CataloguePage_Controller {
+
+	/**
+	 * Validate HTTP-Request parameter.
+	 *
+	 * BrowsePage customise the search capabilities and allows the 'empty' search.
+	 *
+	 * @param array $params http-request parameter
+	 */
+	protected function validateRequest($params) {
+	}
+
+	/**
+	 * Action: index 
+	 * 
+	 * Browse Page perform a empty search to populate the all results on the 
+	 * Browse Page.
+	 */
+	public function index($data) {
+		// perform a standard search, but the validation has been disabled to
+		// enable an empty search on the metadata repository.
+
+		$params = array();
+		return $this->dogetrecords($params);
+	}
+}

code/CatalogueHomePage.php

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+<?php
+/**
+ * @author Rainer Spittel (rainer at silverstripe dot com)
+ * @package geocatalog
+ * @subpackage code
+ */
+
+/**
+ * General catalogue page
+ */
+class CatalogueHomePage extends Page {
+
+	public static $db = array(
+		'SearchPageName' => "Varchar", // Name of the searchpage (Type CataloguePage) to redirect the search to
+		'BrowsePageName' => "Varchar", // Name of the searchpage (Type BrowsePage) to redirect the search to
+		'SubmitDataPageName' => "Varchar", // Name of the searchpage (Type CataloguePage) to redirect the search to
+	);
+
+	/**
+	 * Provide an array of instances of subclasses for a given classname. The
+	 * array can be used to populate values into drop down lists to select
+	 * redirect pages.
+	 *
+	 * @param string $classname Name of the parent class
+	 *
+	 * @return array
+	 */
+	static function get_page_subclasses($classname) {
+
+		$classes = ClassInfo::subclassesFor($classname);
+		$pages = array();
+		foreach($classes as $class) {
+			$dataObjectSet = DataObject::get($class);
+
+			if ($dataObjectSet) {
+				$iter = $dataObjectSet->getIterator();
+				$item = $iter->current();
+
+				while ($item) {
+					$pages[$item->URLSegment] = $item->Title ." (url: ".$item->URLSegment.")";
+					$item =$iter->next();
+				}
+			}
+		}
+		return $pages;
+	}
+
+	/**
+	 * This method returns the standard form for the metadata search.
+	 *
+	 * To enable the submission into a different controller, I choose the 
+	 * work around to define the Form Object Link method in this controller
+	 * to point to the url-segment of the selected catalogue page {@link FormObjectLink). 
+	 * 
+	 * @return Form
+	 */
+	function Form() {
+		// create the search form
+		$searchForm = CataloguePage_Controller::get_search_form_name();
+		$form = new $searchForm($this,'dogetrecords');		
+		return $form;
+	}
+
+	/**
+	 * Overwrites the controller - link handling for form submissions. 
+	 * This method defines the form submission action for the search form, which
+	 * sends its request to the catalogue page controller class.
+	 *
+	 * @return string URL segment and action name for the search form.
+	 */
+	function FormObjectLink() {
+		return $this->SearchPageName."/dogetrecords";
+	}
+
+	/** 
+	 * Populate the additional field.
+	 * @return Fieldset 
+	 */
+	function getCMSFields() {
+		$fields = parent::getCMSFields();
+
+		$pagesSearch = CatalogueHomePage::get_page_subclasses('CataloguePage');
+		$pagesBrowse = CatalogueHomePage::get_page_subclasses('BrowsePage');
+		$pagesRegister = CatalogueHomePage::get_page_subclasses('RegisterDataPage');
+
+		$fields->addFieldsToTab('Root.Content.Catalogue',
+			array( 
+				new DropdownField('SearchPageName','Use this page as search page (must be of type "Catalogue Page")',$pagesSearch),				// drop down				
+				new DropdownField('BrowsePageName','Use this page as browse page (must be of type "Browse Page")',$pagesBrowse),				// drop down				
+				new DropdownField('SubmitDataPageName','Use this page as submit data page (must be of type "Register Data Page")',$pagesRegister),	// drop down				
+			));		
+
+		if (CataloguePage::get_site_status() != 'setup') {
+			$fields->makeFieldReadonly('SearchPageName');
+			$fields->makeFieldReadonly('BrowsePageName');
+			$fields->makeFieldReadonly('SubmitDataPageName');
+		}
+
+		return $fields;
+	}	
+}
+
+/**
+ * Customised controller class
+ */
+class CatalogueHomePage_Controller extends Page_Controller {
+
+
+	/**
+	 * Initialisation function that is run before any action on the controller is called.
+	 */
+	public function init() {
+		parent::init();
+		$this->extend('extendInit');
+	}
+}
+
+?>