[DL-Learner SVN] SF.net SVN: dl-learner:[1441] trunk/src/dbpedia-navigator

[<jen...@us...>]

Revision: 1441
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=1441&view=rev
Author:   jenslehmann
Date:     2008-10-27 09:32:07 +0000 (Mon, 27 Oct 2008)

Log Message:
-----------
continued city template

Modified Paths:
--------------
    trunk/src/dbpedia-navigator/Settings.php.dist
    trunk/src/dbpedia-navigator/templates/AbstractTemplate.php
    trunk/src/dbpedia-navigator/templates/CityTemplate.php

Added Paths:
-----------
    trunk/src/dbpedia-navigator/templates/PlaceTemplate.php
    trunk/src/dbpedia-navigator/templates/PopulatedPlaceTemplate.php

Modified: trunk/src/dbpedia-navigator/Settings.php.dist
===================================================================
--- trunk/src/dbpedia-navigator/Settings.php.dist	2008-10-27 09:28:53 UTC (rev 1440)
+++ trunk/src/dbpedia-navigator/Settings.php.dist	2008-10-27 09:32:07 UTC (rev 1441)
@@ -40,6 +40,8 @@
 	public $endpoint="DBPEDIA";
 	//public $endpoint="LOCALDBPEDIA";
 	
+	public $dbpediaPropertyPrefix = 'http://dbpedia.org/ontology/';
+	public $dbpediaClassPrefix = 'http://dbpedia.org/ontology/';
 	
 	// in mikrosekunden
 	public $sparqlttl=60000000;

Modified: trunk/src/dbpedia-navigator/templates/AbstractTemplate.php
===================================================================
--- trunk/src/dbpedia-navigator/templates/AbstractTemplate.php	2008-10-27 09:28:53 UTC (rev 1440)
+++ trunk/src/dbpedia-navigator/templates/AbstractTemplate.php	2008-10-27 09:32:07 UTC (rev 1441)
@@ -32,6 +32,31 @@
 
 	abstract function printTemplate($triples);
 	
+	// utility method, which checks whether the given DBpedia ontology properties exists in the triples
+	// is they exist, the method returns true and false otherwise;
+	// TODO: use $dbpediaOntologyPrefix in $settings (how do we access those settings in all scripts?)
+	function areDBpediaPropertiesSet($triples, $properties) {
+		foreach($properties as $property) {
+			if(!isset($triples['http://dbpedia.org/ontology/'.$property])) {
+				return false;
+			}
+		}
+		return true;
+	}
+	
+	// gets the value of the property
+	function getPropValue($triples, $property) {
+		return $triples['http://dbpedia.org/ontology/'.$property];
+	}
+	
+	// gets the value of the property and removes it from the triple array
+	// (this means you cannot access this information anymore afterwards)
+	function extractPropValue($triples, $property) {
+		$value = $triples['http://dbpedia.org/ontology/'.$property];
+		unset($triples['http://dbpedia.org/ontology/'.$property]);
+		return $value;
+	}
+	
 }
 
 ?>
\ No newline at end of file

Modified: trunk/src/dbpedia-navigator/templates/CityTemplate.php
===================================================================
--- trunk/src/dbpedia-navigator/templates/CityTemplate.php	2008-10-27 09:28:53 UTC (rev 1440)
+++ trunk/src/dbpedia-navigator/templates/CityTemplate.php	2008-10-27 09:32:07 UTC (rev 1441)
@@ -24,15 +24,15 @@
  *  
  * @author Jens Lehmann
  */
-class CityTemplate {
+class CityTemplate extends PopulatedPlaceTemplate {
 
 	function getTemplate($triples) {
 		$content = "";
+		$content .= '<table>';
+		$content .= '<tr><td colspan="2">City Information</td></tr>';
+		$content .= '<tr><td>total population</td><td>' + getPopulationString($triples) + '</td></tr>';
+		$content .= '</table>';
 		
-		$latitude = $triples['http://dbpedia.org/ontology/latitutedegrees'] + "° "
-			+ $triples['http://dbpedia.org/ontology/latitudeminutes'] + "′"
-			+ $triples['http://dbpedia.org/ontology/latitudeseconds'] + "″N";
-		
 		// .. continue ...
 		
 		return $content;

Added: trunk/src/dbpedia-navigator/templates/PlaceTemplate.php
===================================================================
--- trunk/src/dbpedia-navigator/templates/PlaceTemplate.php	                        (rev 0)
+++ trunk/src/dbpedia-navigator/templates/PlaceTemplate.php	2008-10-27 09:32:07 UTC (rev 1441)
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Copyright (C) 2007-2008, Jens Lehmann
+ *
+ * This file is part of DL-Learner.
+ * 
+ * DL-Learner is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DL-Learner is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Abstract template class. Templates are used for displaying information
+ * about a particular entity in a user friendly way.
+ * 
+ * You can also use this class for convenience functions accessible by
+ * all concrete templates.
+ *  
+ * @author Jens Lehmann
+ */
+abstract class PlaceTemplate extends AbstractTemplate {
+
+	// returns a latitude string of the form 49°1′0″N or "unknown"
+	public getLatitudeString($triples) {
+		if(!areDBpediaPropertiesSet(array('latitudedegrees','latitudeminutes','latitudeseconds'))) {
+			return "unknown";
+		}
+	
+		$latitude = $triples['http://dbpedia.org/ontology/latitutedegrees'] + "° "
+			+ $triples['http://dbpedia.org/ontology/latitudeminutes'] + "′"
+			+ $triples['http://dbpedia.org/ontology/latitudeseconds'] + "″N";
+		return $latitude;	
+	}
+
+	// returns a latitude string of the form 49°1′0″E or "unknown"
+	public getLongitudeString($triples) {
+		if(!areDBpediaPropertiesSet(array('longitudedegrees','longitudeminutes','longitudeseconds'))) {
+			return "unknown";
+		}
+	
+		$longitude = $triples['http://dbpedia.org/ontology/longitutedegrees'] + "° "
+			+ $triples['http://dbpedia.org/ontology/longitudeminutes'] + "′"
+			+ $triples['http://dbpedia.org/ontology/longitudeseconds'] + "″N";
+		return $longitude;	
+	}
+	
+}
+
+?>
\ No newline at end of file

Added: trunk/src/dbpedia-navigator/templates/PopulatedPlaceTemplate.php
===================================================================
--- trunk/src/dbpedia-navigator/templates/PopulatedPlaceTemplate.php	                        (rev 0)
+++ trunk/src/dbpedia-navigator/templates/PopulatedPlaceTemplate.php	2008-10-27 09:32:07 UTC (rev 1441)
@@ -0,0 +1,36 @@
+<?php
+/**
+ * Copyright (C) 2007-2008, Jens Lehmann
+ *
+ * This file is part of DL-Learner.
+ * 
+ * DL-Learner is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DL-Learner is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Template for all populated places.
+ */
+abstract class PopulatedPlaceTemplate extends PlaceTemplate {
+
+	// return a nicely formatted string for the population of the place 
+	public getPopulationString() {
+		$number = number_format(extractPropValue('populationTotal'));
+		$asOf = extractPropValue('populationAsOf');
+		
+		return $number + ' (as of ' + $asOf + ')';
+	}
+
+}
+?>
\ No newline at end of file


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