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我想知道是否有人能夠幫助我。在窗口中顯示'Total Of'
我使用下面的代碼來正確顯示存儲在mySQL數據庫中的所有位置的標記。
PHP
<?php
require("phpfile.php");
// Start XML file, create parent node
$dom = new DOMDocument("1.0");
$node = $dom->createElement("markers");
$parnode = $dom->appendChild($node);
// Opens a connection to a MySQL server
$connection=mysql_connect ("hostname", $username, $password);
if (!$connection) { die('Not connected : ' . mysql_error());}
// Set the active MySQL database
$db_selected = mysql_select_db($database, $connection);
if (!$db_selected) {
die ('Can\'t use db : ' . mysql_error());
}
// Select all the rows in the markers table
修正代碼
$query = "select l.locationname, l.address, l.osgb36lat, l.osgb36lon, count(*) as totalfinds from locations as l left join finds as f on l.locationid=f.locationid";
$result = mysql_query($query);
if (!$result) {
die('Invalid query: ' . mysql_error());
}
header("Content-type: text/xml");
// Iterate through the rows, adding XML nodes for each
while ($row = @mysql_fetch_assoc($result)){
// ADD TO XML DOCUMENT NODE
$node = $dom->createElement("marker");
$newnode = $parnode->appendChild($node);
$newnode->setAttribute("locationname",$row['locationname']);
$newnode->setAttribute("address",$row['address']);
$newnode->setAttribute("osgb36lat",$row['osgb36lat']);
$newnode->setAttribute("osgb36lon",$row['osgb36lon']);
$newnode->setAttribute("finds",$row['finds']);
$newnode->setAttribute("totalfinds",$row['totalfinds']);
}
}
echo $dom->saveXML();
?>
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Locations</title>
<link rel="stylesheet" href="css/alllocationsstyle.css" type="text/css" media="all" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
<script type="text/javascript">
var customIcons = {
0: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
1: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom:6,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phpfile.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var locationname = markers[i].getAttribute("locationname");
var address = markers[i].getAttribute("address");
var finds = markers[i].getAttribute("finds");
var totalfinds = markers[i].getAttribute("totalfinds");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("osgb36lat")),
parseFloat(markers[i].getAttribute("osgb36lon")));
var html = "<b>" + locationname + "</b>";
var icon = customIcons[finds] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon,
shadow: icon.shadow
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
</head>
<body onLoad="load()">
<div id="map"></div>
</body>
</html>
我想這樣做的是ADAP t代碼顯示每個位置的「查找總數」以及爲每個標記創建的Infowindow中的「位置名稱」。
我知道我需要從我的表中得到這個信息，這個信息叫做'finds'，我需要計算'locationid'與'locations'表中匹配的行數，但我必須承認我沒有不知道如何做到這一點。
我只是想知道是否有人可能請提供一些指導，說明我需要做些什麼來實現這一點。
許多的感謝和親切的問候
克里斯
查找SQL轉儲
--
-- Table structure for table `finds`
--
DROP TABLE IF EXISTS `finds`;
CREATE TABLE IF NOT EXISTS `finds` (
`userid` int(6) NOT NULL,
`locationid` int(6) NOT NULL,
`findid` int(6) NOT NULL auto_increment,
`findosgb36lat` float(10,6) NOT NULL,
`findosgb36lon` float(10,6) NOT NULL,
`dateoftrip` varchar(8) NOT NULL,
`findname` varchar(35) NOT NULL,
`finddescription` varchar(100) NOT NULL,
`findimage` varchar(200) default NULL,
`additionalcomments` varchar(600) default NULL,
`makepublic` varchar(3) NOT NULL default 'no',
PRIMARY KEY (`findid`)
) ENGINE=MyISAM AUTO_INCREMENT=34 DEFAULT CHARSET=utf8 AUTO_INCREMENT=34 ;
地點傾倒SQL
--
-- Table structure for table `locations`
--
CREATE TABLE `locations` (
`userid` int(6) NOT NULL,
`locationid` int(6) NOT NULL auto_increment,
`locationname` varchar(80) NOT NULL,
`address` varchar(110) NOT NULL,
`osgb36lat` float(10,6) NOT NULL,
`osgb36lon` float(10,6) NOT NULL,
`osgridref` varchar(20) NOT NULL,
`wgs84latd` int(2) NOT NULL,
`wgs84latm` int(2) NOT NULL,
`wgs84lats` decimal(6,2) NOT NULL,
`wgs84latb` varchar(1) NOT NULL,
`wgs84lond` int(2) NOT NULL,
`wgs84lonm` int(2) NOT NULL,
`wgs84lons` decimal(6,2) NOT NULL,
`wgs84lonb` varchar(1) NOT NULL,
`nameoflocationcontact` varchar(30) NOT NULL,
`locationcontactsaddressline1` varchar(50) NOT NULL,
`locationcontactsaddressline2` varchar(50) default NULL,
`locationcontactsaddressline3` varchar(50) default NULL,
`locationcontactsaddressline4` varchar(50) default NULL,
`locationcontactstelephonenumber` varchar(15) default NULL,
`finds` int(1) NOT NULL,
PRIMARY KEY (`locationid`)
) ENGINE=MyISAM AUTO_INCREMENT=27 DEFAULT CHARSET=utf8 AUTO_INCREMENT=27 ;
嗨，非常感謝您花時間回覆我的帖子。我已經做出了您所建議的更改，但不幸的是我似乎無法使其發揮作用。現在地圖只顯示錶格中第一條記錄的標記。沒有顯示錯誤，地圖按預期打開。你能告訴我，我哪裏可能會出錯。我已經更新了我的原始位置，顯示了新的代碼。很多感謝和問候。 Chris – IRHM
嗨，我試圖重新創建這個，並通過使用測試輸入，我設法至少設置了兩個標記。我不確定從哪裏出發，你確定所有來自數據庫的數據都是正確的嗎？如果您希望我更準確地重新創建數據庫轉儲將會有所幫助。 – kjetilh
嗨，首先非常感謝你對我的支持，非常感謝。我已經回到桌子上了，對我來說一切似乎都沒問題，但我對此很新，所以我可能是錯的。我已將sql轉儲附加到我的原始文章。非常感謝和親切的問候。 Chris – IRHM