Explain tables in the gui

Author: kormoc

descTable.php

@@ -0,0 +1,60 @@
+<?php
+
+	require_once('init.php');
+
+	$return = array();
+	
+	$label    			= $_REQUEST['label'];
+	$database 			= $_REQUEST['db'];
+	$table    			= $_REQUEST['table'];
+	
+	$return['label']    = $label;
+	$return['database'] = $database;
+	$return['table']    = $table;
+	$return['column']   = $col;
+	
+	$return['title']    = "{$database}.${table}";
+
+	$host = $explainhosts[$label];
+	Database::connect(null, $host['user'], $host['password'], null, null, 'pdo', array('dsn' => $host['dsn']), $label);
+	Database::find($label)->query('USE '.Database::escapeField($database));
+	
+	list($tmp, $return['create']) = Database::find($label)->query_row('SHOW CREATE TABLE '.Database::escapeField($table));
+	
+	$return['create'] = SqlParser::html($return['create']);
+
+	
+	$desc = Database::find($label)->query_list_assoc('DESC '.Database::escapeField($table));
+	
+	$return['desc'] = '<table><thead><tr>';
+	foreach (array_keys($desc[0]) as $key)
+		$return['desc'] .= '<th>'.$key.'</th>';
+	$return['desc'] .= '</tr></thead><tbody>';
+	foreach ($desc as $row) {
+		$return['desc'] .= '<tr>';
+		foreach ($row as $key => $val)
+			$return['desc'] .= '<td>'.ifnull($val, 'NULL').'</td>';
+		$return['desc'] .=  '</tr>';
+	}
+	$return['desc'] .= '</tbody></table>';
+	unset($desc);
+	
+	$indexes = Database::find($label)->query_list_assoc('SHOW INDEXES FROM '.Database::escapeField($table));
+	
+	$return['indexes'] = '<table><thead><tr>';
+	foreach (array_keys($indexes[0]) as $key)
+		$return['indexes'] .= '<th>'.$key.'</th>';
+	$return['indexes'] .= '</tr></thead><tbody>';
+	foreach ($indexes as $row) {
+		$return['indexes'] .= '<tr>';
+		foreach ($row as $key => $val)
+			$return['indexes'] .= '<td>'.ifnull($val, 'NULL').'</td>';
+		$return['indexes'] .=  '</tr>';
+	}
+	$return['indexes'] .= '</tbody></table>';
+	unset($indexes);
+		
+	header('Cache-Control: no-cache, must-revalidate');
+	header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
+	header('Content-type: application/json');
+	echo json_encode($return);

init.php

@@ -1,12 +1,16 @@
 <?php
 
+// No html errors. They break ajax
+	ini_set('html_errors', 0);
+
 // Set default settings here. Can be overridden in config.php.
     $settings = array();
     $settings['sqlColor'] = true;
 	$settings['title'] = null;
 	$settings['sampleLimit'] = 1;
 
 	require_once('config.php');
+	require_once('util.php');
 	require_once('libs/Database/Database.php');
 	Database::connect(null, $reviewhost['user'], $reviewhost['password'], null, null, 'pdo', array('dsn' => $reviewhost['dsn']), 'review');
 

js/explain.js

@@ -25,7 +25,7 @@ $(function() {
                       ret = $('#explainPlan').dataTable().fnAddData([
                           data.Explain[i].id,
                           data.Explain[i].select_type,
-                          data.Explain[i].table,
+                          $(data.Explain[i].table),
                           data.Explain[i].type,
                           data.Explain[i].possible_keys,
                           data.Explain[i].key,
@@ -47,6 +47,47 @@ function lookupDatabase(label, database) {
 }
 
 function lookupTable(label, database, table) {
+   $.ajax({
+            url: 'descTable.php',
+            data : {
+                checksum: checksum,
+                label: label,
+                db: database,
+                table: table
+            },
+
+            success: function(data) {
+               var dlog = $('<div class="dialog">');
+               
+               var str = '<div class="tabs">';
+               str += '<ul><li><a href="#dialogDescCreate">Create</a></li>';
+               str += '<li><a href="#dialogDescDesc">Desc</a></li>';
+               str += '<li><a href="#dialogDescIndexes">Indexes</a></li></ul>';
+               
+               str += '<div id="dialogDescCreate">';
+               str += data.create;
+               str += '</div>';
+               
+               str += '<div id="dialogDescDesc" style="font-size: 80%;">';
+               str += data.desc;
+               str += '</div>';
+               
+               str += '<div id="dialogDescIndexes" style="font-size: 80%;">';
+               str += data.indexes;
+               str += '</div>';
+               
+               
+               str += '</div>';
+               $(dlog).html(str);
+               
+               $(dlog).dialog({
+                  title:    data.title,
+                  minWidth: 400
+               });
+               $("div.dialog div.tabs").tabs();
+            }
+   });
+            
     return;
 }
 

util.php

@@ -0,0 +1,11 @@
+<?php
+
+	function ifnull($var, $val) {
+		if (is_null($var))
+			return $val;
+		return $var;
+	}
+
+	function linkTable($label, $database, $table) {
+		return '<a class="table" onclick="lookupTable(\''.$label.'\', \''.$database.'\', \''.$table.'\');">`'.$table.'`</a>';
+	}