From 72b801513b84621855979c599926c887da4bbe88 Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Sun, 19 Aug 2012 20:32:53 -0700
Subject: [PATCH] Load more data in select

---
 adminer/include/functions.inc.php |  7 +++++++
 adminer/include/version.inc.php   |  2 +-
 adminer/lang/cs.inc.php           |  2 ++
 adminer/select.inc.php            | 21 +++++++++++++++++++-
 adminer/static/functions.js       | 32 +++++++++++++++++++++++++++++++
 changes.txt                       |  3 ++-
 6 files changed, 64 insertions(+), 3 deletions(-)

diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index 03a50d13..90a27037 100644
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -937,3 +937,10 @@ function cancel_kill_timeout() {
 		}
 	}
 }
+
+/** Callback registered to erase output buffer in AJAX calls
+* @return string
+*/
+function clean_output() {
+	return '';
+}
diff --git a/adminer/include/version.inc.php b/adminer/include/version.inc.php
index 469754a4..75ce5ced 100644
--- a/adminer/include/version.inc.php
+++ b/adminer/include/version.inc.php
@@ -1,2 +1,2 @@
 <?php
-$VERSION = "3.5.2-dev";
+$VERSION = "3.6.0-dev";
diff --git a/adminer/lang/cs.inc.php b/adminer/lang/cs.inc.php
index 976a2056..ec1f3a4d 100644
--- a/adminer/lang/cs.inc.php
+++ b/adminer/lang/cs.inc.php
@@ -234,6 +234,8 @@ $translations = array(
 	'Page' => 'Stránka',
 	'last' => 'poslední',
 	'Last page' => 'Poslední stránka',
+	'Load more data' => 'Nahrát další data',
+	'Loading' => 'Nahrává se',
 	'whole result' => 'celý výsledek',
 	'%d byte(s)' => array('%d bajt', '%d bajty', '%d bajtů'),
 	
diff --git a/adminer/select.inc.php b/adminer/select.inc.php
index dfdc5b43..c08ab143 100644
--- a/adminer/select.inc.php
+++ b/adminer/select.inc.php
@@ -188,6 +188,9 @@ if ($_POST && !$error) {
 }
 
 $table_name = $adminer->tableName($table_status);
+if (is_ajax()) {
+	ob_start('clean_output');
+}
 page_header(lang('Select') . ": $table_name", $error);
 
 $set = null;
@@ -258,7 +261,7 @@ if (!$columns) {
 		} else {
 			$backward_keys = $adminer->backwardKeys($TABLE, $table_name);
 			
-			echo "<table cellspacing='0' class='nowrap checkable' onclick='tableClick(event);' onkeydown='return editingKeydown(event);'>\n";
+			echo "<table id='table' cellspacing='0' class='nowrap checkable' onclick='tableClick(event);' onkeydown='return editingKeydown(event);'>\n";
 			echo "<thead><tr>" . (!$group && $select ? "" : "<td><input type='checkbox' id='all-page' onclick='formCheck(this, /check/);'> <a href='" . h($_GET["modify"] ? remove_from_uri("modify") : $_SERVER["REQUEST_URI"] . "&modify=1") . "'>" . lang('edit') . "</a>");
 			$names = array();
 			$functions = array();
@@ -298,6 +301,12 @@ if (!$columns) {
 				}
 			}
 			echo ($backward_keys ? "<th>" . lang('Relations') : "") . "</thead>\n";
+			if (is_ajax()) {
+				if ($limit % 2 == 1 && $page % 2 == 1) {
+					odd();
+				}
+				ob_end_clean();
+			}
 			foreach ($adminer->rowDescriptions($rows, $foreign_keys) as $n => $row) {
 				$unique_array = unique_array($rows[$n], $indexes);
 				$unique_idf = "";
@@ -383,6 +392,9 @@ if (!$columns) {
 				$adminer->backwardKeysPrint($backward_keys, $rows[$n]);
 				echo "</tr>\n"; // close to allow white-space: pre
 			}
+			if (is_ajax()) {
+				exit;
+			}
 			echo "</table>\n";
 			echo (!$group && $select ? "" : "<script type='text/javascript'>tableCheck();</script>\n");
 		}
@@ -413,6 +425,9 @@ if (!$columns) {
 					echo pagination($i, $page);
 				}
 				echo ($page + 5 < $max_page ? " ..." : "") . ($exact_count && $found_rows !== false ? pagination($max_page, $page) : ' <a href="' . h(remove_from_uri("page") . "&page=last") . '">' . lang('last') . "</a>");
+				if (count($rows) >= $limit) {
+					echo ' <a href="' . h(remove_from_uri("page") . "&page=" . ($page + 1)) . '" onclick="return !selectLoadMore(this, ' . (+$limit) . ', \'' . lang('Loading') . '\');">' . lang('Load more data') . '</a>';
+				}
 			}
 			echo ($found_rows !== false ? " (" . ($exact_count ? "" : "~ ") . lang('%d row(s)', $found_rows) . ")" : "") . " " . checkbox("all", 1, 0, lang('whole result')) . "\n";
 			
@@ -450,3 +465,7 @@ if (!$columns) {
 		echo "</form>\n";
 	}
 }
+
+if (is_ajax()) {
+	exit;
+}
diff --git a/adminer/static/functions.js b/adminer/static/functions.js
index b731c97d..d502540b 100644
--- a/adminer/static/functions.js
+++ b/adminer/static/functions.js
@@ -446,6 +446,38 @@ function selectDblClick(td, event, text) {
 
 
 
+/** Load and display next page in select
+* @param HTMLLinkElement
+* @param string
+* @param number
+* @return boolean
+*/
+function selectLoadMore(a, limit, loading) {
+	var title = a.innerHTML;
+	var href = a.href;
+	a.innerHTML = loading;
+	if (href) {
+		a.removeAttribute('href');
+		return ajax(href, function (request) {
+			document.getElementById('table').innerHTML += request.responseText;
+			var rows = 0;
+			request.responseText.replace(/(^|\n)<tr/g, function () {
+				rows++;
+			});
+			if (rows < limit) {
+				a.parentNode.removeChild(a);
+			} else {
+				a.href = href.replace(/\d+$/, function (page) {
+					return +page + 1;
+				});
+				a.innerHTML = title;
+			}
+		});
+	}
+}
+
+
+
 /** Stop event propagation
 * @param Event
 */
diff --git a/changes.txt b/changes.txt
index bdcff9b4..6fb51734 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,4 +1,5 @@
-Adminer 3.5.2-dev:
+Adminer 3.6.0-dev:
+Load more data in select
 Edit strings with \n in textarea
 Time out long running database list and select count
 Use VALUES() in INSERT+UPDATE export