User:Kleptomik~mediawikiwiki/Sandbox

A small hack that changes the Metrics extension to generate Google Chart code (I use the Gchart4mw extension).

<?php
$wgExtensionCredits['specialpage'][] = array(
        'name' => 'Metrics',
        'version' => 0.1,
        'author' => 'Chris Reigrut',
        'url' => 'http://www.mediawiki.org/wiki/Extension:Metrics',
        'description' => 'Displays metrics that have been predefined.',
);
 
$wgExtensionFunctions[] = "wfExtensionSpecialMetrics";
$dir = dirname(__FILE__) . '/';
$wgExtensionMessagesFiles['Metrics'] = $dir . 'SpecialMetrics.i18n.php';
 
function wfExtensionSpecialMetrics() {
        global $wgMessageCache;
 
        require_once('includes/SpecialPage.php');
        SpecialPage::addPage(new SpecialPage('Metrics'));
 
        $wgMessageCache->addMessages(array('metrics' => 'Metrics'));
        wfLoadExtensionMessages('Metrics');
}
 
function wfSpecialMetrics() {
        global $wgOut, $wgRequest;
        $dbr =& wfGetDB( DB_READ );
 
        $names = getMetricNames($dbr);
 
        if (is_null( $wgRequest->getVal( 'submit' ) )) {
                // No submit - only display form
                createForm($names);
        } else {
                // Form submitted - display form and results
                $selectedNames = $wgRequest->getArray('metricNames', array());
                sort($selectedNames);
                createForm($names, $selectedNames);
                displayResults($dbr, $selectedNames);
        }
}
 
function getMetricNames($dbr) {
        $names = array();
 
        $result = $dbr->select(
                array('metric'),
                array( 'distinct metric_name',),
                array(),
                'metrics',
                array( 'ORDER BY'=>'metric_name ') );
 
        while ($row = $dbr->fetchObject($result)) {
                $names[] = $row->metric_name;
        }
 
        return $names;
}
 
function createForm($names, $selectedNames = array()) {
        global $wgOut, $wgRequest;
        //displayStyle();
 
        $titleObj = Title::makeTitle( NS_SPECIAL, 'Metrics' );
        $action = $titleObj->escapeLocalURL();
        $wgOut->addHTML('<form enctype="multipart/form-data" method="post"  action="'.$action.'">');
        $wgOut->addHTML('<fieldset><legend>' . wfMsg('metrics-form-legend') . '</legend>');
 
        $wgOut->addHTML('<div id="metricNames">');
        $wgOut->addHTML('<select name="metricNames[]" multiple="multiple">');
        foreach( $names as $name ) {
                if (in_array($name,$selectedNames)) {
                        $selected = ' selected="selected"';
                } else {
                        $selected = '';
                }
                $wgOut->addHTML("<option value=\"{$name}\"{$selected}>$name</option>");
        }
        $wgOut->addHTML('</select>');
        $wgOut->addHTML('</div>');
 
        $fromDate = @date_create($wgRequest->getVal('fromDate'));
        $toDate = @date_create($wgRequest->getVal('toDate'));
 
        $wgOut->addHTML('<div id="metricDates">');
        $wgOut->addHTML('<div class="metricDate"><label>' . wfMsg( 'metrics-from-label' ) . '</label><input name="fromDate" type="date" value="' . date_format($fromDate, 'n/j/Y') . '"/></div>');
        $wgOut->addHTML('<div class="metricDate"><label>' . wfMsg( 'metrics-to-label' ) . '</label><input name="toDate" type="date" value="' . date_format($toDate, 'n/j/Y') . '"/></div>');
        $wgOut->addHTML('</div>');
 
        $wgOut->addHTML('<div id="metricSubmit"><input type="submit" name="submit" value="'.wfMsg( 'metrics-form-button' ).'" /></div>');
 
        $wgOut->addHTML('</fieldset>');
        $wgOut->addHTML('</form>');
}
 
function displayResults($dbr, $selectedNames) {
        global $wgOut, $wgRequest;
 
        // Get results
        //list($limit, $offset) = $wgRequest->getLimitOffset();
        //$limit = 10;
        //$offset = 0;
        if (is_null($selectedNames) || count($selectedNames) == 0) {
                $wgOut->addWikiText(wfMsg( 'metrics-none-selected-error' ));
        } else {
                $fromDate = @date_create($wgRequest->getVal('fromDate'));
                $toDate = @date_create($wgRequest->getVal('toDate'));
 
                $result = $dbr->select(
                        array('metric'),
                        array( 'metric_date', 'metric_name', 'metric_value',),
                        array( createWhereIn($dbr, 'metric_name', $selectedNames),
                               "metric_date BETWEEN '" . date_format($fromDate, 'Y-m-d') . "' AND '" . date_format($toDate, 'Y-m-d') . "'" ),
                        'metrics',
                        array( 'ORDER BY'=>'metric_date ASC, metric_name')
                 );
 
                // Output results
                if ( 0 == $dbr->numRows( $result ) ) {
                        $wgOut->addWikiText(wfMsg( 'metrics-no-data-error' ));
                } else {
                        $rows = array();
 
                        $wgOut->addHTML('<table id="metricResults" class="sortable">');
                        $wgOut->addHTML('<tr>');
                        $wgOut->addHTML('<th>Date</th>');

			$theChart = '<br /><b>Google Chart Code</b>:';
			$theChart .= '<pre>&#60lines title="';
			if((count($selectedNames)) > 1) {
			  $theChart .= 'GRAPH_NAME_HERE';
			} else {
			  $theChart .= $selectedNames[0];
			}
			$theChart .= '"<br /> ymin=0 ymax=500 ';
			$theChart .= '<br />colors=FF0000';
			if((count($selectedNames)) > 1) {
			  $theChart .= ',00FF00,0000FF,993300,FFFF00,CCFFFF,FF66FF,CCCCCC,006600,336666 ';
			}
			$theChart .= '<br />ylabel=10 xlabel ';
			$theChart .= 'grid=xy size=500x600';
			if((count($selectedNames)) > 1) {
			  $theChart .= ' legend';
			}
			
			$theChart .= '&#62<br />';

                        foreach( $selectedNames as $name ) {
                                $wgOut->addHTML('<th>' . $name . '</th>');
				if((count($selectedNames)) > 1) {
				  $theChart .= ',' . $name;
				}
                        }
                        $wgOut->addHTML('</tr>');
 
                        $currentRowDate = NULL;
                        $currentColumnIndex = 0;

			$highMark = 0;

                        while ($row = $dbr->fetchObject($result)) {
                                if ($currentRowDate != $row->metric_date) {
                                        while ($currentColumnIndex < count($selectedNames) && $row->metric_name != $selectedNames[$currentColumnIndex++]) {
                                                $wgOut->addHTML('<td>&nbsp;</td>');
                                        }
                                        if ($currentRowDate != NULL) {
                                                $wgOut->addHTML('</tr>');
                                        }
                                        $currentRowDate = $row->metric_date;
                                        $currentColumnIndex = 0;
                                        $wgOut->addHTML('<tr>');
                                        $wgOut->addHTML('<th>' . $currentRowDate . '</th>');
					$theChart .= '<br />';
					$theChart .= preg_replace('/[0-9][0-9][0-9][0-9]-/', '', $currentRowDate); 
                                }
                                while ($currentColumnIndex < count($selectedNames) && $row->metric_name != $selectedNames[$currentColumnIndex++]) {
                                        $wgOut->addHTML('<td>&nbsp;</td>');
                                }
                                $wgOut->addHTML('<td>' . $row->metric_value . '</td>');
				$theChart .= ', ' . $row->metric_value;
				
				if($row->metric_value > $highMark) {
					$highMark = $row->metric_value;
				}
                        }
                        while ($currentColumnIndex < count($selectedNames) && $row->metric_name != $selectedNames[$currentColumnIndex++]) {
                                $wgOut->addHTML('<td>&nbsp;</td>');
                        }
 
                        if ($currentRowDate != NULL) {
                                $wgOut->addHTML('</tr>');
                        }
 
                        $wgOut->addHTML('</table>');
			$theChart .= '<br />&#60/lines&#62</pre>';
			$theChart = preg_replace('/ymax=500/', 'ymax=' . ($highMark + ($highMark / 5)), $theChart );
 
                        $dbr->freeResult($result);
                        $wgOut->addHTML($theChart);
                }
        }
}
 
function createWhereIn($dbr, $field, $setArray) {
        $whereSet = '';
        foreach ($setArray as $key => $val) {
                if (strlen($whereSet)>0) {
                        $whereSet .= ',';
                }
        $whereSet .= $dbr->addQuotes($val); 
   }
   return "{$field} IN ({$whereSet})";
}
 
function displayStyle() {
        global $wgOut;
            $style .= <<<ENDSTYLE
<style>       
#metricNames {
        float: left;
}
 
.metricDate label {
        float: left;
        text-align: right;
        width: 40px;
        margin: 0 10px;
}
 
 
#metricSubmit {
        float: left;
        padding-left: 60px;
        margin-top: 20px;
}
 
</style>          
ENDSTYLE;
        $wgOut->addHTML($style);
}