[AJAX] JSon noeud enfants

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Bonjour à tous,

voilà j'ai un petit soucis de compréhension avec JSon.

Je dois remplir un champ textarea avec certaines données.
Pour certaines des valeurs je n'ai pas de soucis, mais pour d'autres je n'y arrive pas du tout

Voici le fichier html avec le code javascript

Code:

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<html>
    <head>
        <script type="text/javascript" src="softxmllib.js"></script>
        <script type="text/javascript">
            var http = false;
 
            function getHTTPObject()
            {
                var xmlhttp = false;
 
                if (window.ActiveXObject)
                {
                    try
                    {
                        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                    }
                    catch(e)
                    {
                        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                    }
                }
                else if (!xmlhttp && typeof XMLHttpRequest != 'undefined')
                {
                    xmlhttp = new XMLHttpRequest();
                    if (xmlhttp.overrideMimeType)
                        xmlhttp.overrideMimeType('text/xml');
                    if (!xmlhttp)
                        xmlhttp = null;
                }
 
                return xmlhttp;
            }
 
            function getNewRelease()
            {
                var urlic = "1109542.xml";
 
                http = getHTTPObject();
                http.onreadystatechange = getReleaseInfo;
                http.open("GET", urlic, true);
                http.send(null);
            }
 
            function getReleaseInfo()
            {
                var form = '';
 
                if (http.readyState == 4)
 
                    if (http.status == 200)
                    {
                        var xmlRelease = new SoftXMLLib();
                        xmlRelease.loadXML(http.responseText);
 
                        if (xmlRelease.loadXMLError != 0)
                        {
                            alert("XML file is not valid!");
                        }
                        else
                        {
                            form = form + "Artist: ";
                            form = form + getArtists(xmlRelease.selectNodes("/resp/release/artists/artist"));
                            form = form + "\n";
                            form = form + "Album: ";
                            form = form + getAlbum(xmlRelease.selectNodes("/resp/release//title/text()"));
                            form = form + "\n";
                            form = form + "Discogs: ";
                            form = form + getDiscogsLink(xmlRelease.selectNodes("/resp/release"));
                            form = form + "\n";
                            form = form + "Label: ";
                            form = form + getLabel(xmlRelease.selectNodes("/resp/release/labels/label"));
                            form = form + "\n";
                            form = form + "Catalog#: ";
                            form = form + getCatalog(xmlRelease.selectNodes("/resp/release/labels/label"));
                            form = form + "\n";
                            form = form + "Released: ";
                            form = form + getReleased(xmlRelease.selectNodes("/resp/release/released/text()"));
                            form = form + "\n";
                            form = form + "Style: ";
                            form = form + getStyle(xmlRelease.selectNodes("/resp/release/styles/style/text()"));
                            form = form + "\n";
                            form = form + "Quality: ";
                            form = form + "\n\n";
                            form = form + "Tracklist: ";
                            form = form + getTracklist(xmlRelease.selectNodes("/resp/release/tracklist/track"));
                            form = form + "\n";
                            document.getElementById("text").value = form;
                        }
 
                    }
                    else
                    {
                        alert('Server is too busy or not responding in time; please try again later.');
                    }
            }
 
            function getArtists(artistNode)
            {
                var artists = "";
 
                var nodes = artistNode[0].self.childNodes;
 
                for (var j = 0; j < nodes.length; j++)
                {
 
                    var artistName = "";
                    var anv = "";
                    var join = "";
                    var node = nodes[j].childNodes;
 
                    for (var k = 0; k < node.length; k++)
                    {
 
                        var n = node[k];
                        if (n.nodeName == "name")
                        {
                            artistName = n.childNodes[0].nodeValue;
                        }
                        if (n.nodeName == "anv")
                        {
                            anv = n.childNodes[0].nodeValue;
                        }
                        if (n.nodeName == "join")
                        {
                            join = n.childNodes[0].nodeValue;
                        }
                    }
 
                    if (anv.length == 0 && anv == "")
                    {
                        artists = artists + artistName + " ";
                    }
                    else artists = artists + anv + " ";
 
                    if (join.length > 0)
                    {
                        artists = artists + join + " ";
                    }
 
                }                
                return artists.replace(/^\s+/g, '').replace(/\s+$/g, '');
            }
 
            function getDiscogsLink(releaseId)
            {
                return "http://www.discogs.com/release/"+ releaseId[0].attributes[0].id;
            }
 
            function getAlbum(albumNode)
            {
                return albumNode[0].self.nodeValue;
            }
 
            function getLabel(labelNode)
            {
                var label = "";
                for (var i = 0; i < labelNode.length; i++)
                {
                    label = label + labelNode[i].attributes[0].name + " / ";
                }
                return label.substring(0,label.lastIndexOf("/")).replace(/^\s+/g, '').replace(/\s+$/g, '');
            }
 
            function getCatalog(catalogNode)
            {
                var label = "";
                for (var i = 0; i < catalogNode.length; i++)
                {
                    label = label + catalogNode[i].attributes[0].catno + " / ";
                }
                return label.substring(0,label.lastIndexOf("/")).replace(/^\s+/g, '').replace(/\s+$/g, '');
            }
 
            function getReleased(releasedNode)
            {
                return releasedNode[0].self.nodeValue;
            }
 
            function getStyle(styleNode)
            {
                var style = "";
                for (var i = 0; i < styleNode.length; i++)
                {
                    style = style + styleNode[i].self.nodeValue + " / ";
                }
                return style.substring(0,style.lastIndexOf("/")).replace(/^\s+/g, '').replace(/\s+$/g, '');
            }
 
            function getTracklist(tracklistNode)
            {
                var tracklist = "";
                alert(tracklistNode.length);
                //alert(matchedTracks[0].self.childNodes[0].childNodes[0].nodeName);
                //for (var i = 0; i < tracklistNode.length; i++)
                //{
                    var trackChilds = tracklistNode[0].self.childNodes;
                    var position = '';
                    var artist = '';
                    var title = '';
                    var duration = '';
 
                    for (var j = 0; j < trackChilds.length; j++)
                    {
                        //alert(trackChilds[j].childNodes[0].nodeName);
                        var nodes = trackChilds[j].childNodes;
                        alert(nodes.length);
                        for (var z = 0; z < nodes.length; z++)
                        {
                            var node = nodes[z];
                            if (node.nodeName == "position")
                            {
                                position = node.childNodes[0].nodeValue;
                            }
                            else if (node.nodeName == "artists")
                            {
                                var artistNode = node.childNodes;
                                for (var k = 0; k < artistNode.length; k++)
                                {
                                    var artistChildNode = artistNode[k].childNodes;
                                    var art = "";
                                    var anv = "";
                                    for (var l = 0; l < artistChildNode.length; l++)
                                    {
                                        if (artistChildNode[l].nodeName == "name")
                                        {
                                            art = artistChildNode[l].childNodes[0].nodeValue;
                                        }
                                        if(artistChildNode[l].nodeName == "anv")
                                        {
                                            anv = artistChildNode[l].childNodes[0].nodeValue;
                                        }
 
                                        artist = artist + (anv.length > 0 ? anv : art) + " / ";
                                    }
                                }
                                artist = artist.substring(0, artist.lastIndexOf("/"));
                            }
                            else if (node.nodeName == "title")
                            {
                                title = node.childNodes[0].nodeValue;
                            }
                            else if (node.nodeName == "duration")
                            {
                                duration = '(' + node.childNodes[0].nodeValue + ')';
                            }
                        }
                        tracklist = tracklist + position + " " + artist + " - " + title + " " + duration + "\n";
                    }
 
                //}
                return tracklist.substring(0,tracklist.lastIndexOf("/")).replace(/^\s+/g, '').replace(/\s+$/g, '');
                //alert(tracklist);
 
            }
 
 
            function loadRelease()
            {
                //var urlic = "http://www.torrentech.org/myadmin/discogs.php?id=" + document.getElementById('ajdi').value;
                http = getHTTPObject();
                var urlic = "http://10.1.1.29/Torrentech/resources/1506005.xml";
 
                //ne moze ovo jer se dobija permission denied... ne moze ajax da ucitava nista sto nije sa domena gde je on sam
                //var urlic = "http://www.discogs.com/release/" + document.getElementById('ajdi').value + "?f=xml&api_key=59d9b19e15";
                http.open("GET", urlic, true);
                http.onreadystatechange = function()
                {
                    if (http.readyState == 4)
                    {
                        if (http.status == 200)
                        {
                            var matchedNodes;
                            var xmlData = new SoftXMLLib();
                            xmlData.load(http.responseXML);
 
                            if (xmlData.loadXMLError != 0)
                            {
                                alert("XML file is not valid!");
                            }
                            else
                            {
                                //Artisti:
                                var xpath = "/resp/release/artists/artist/name/text()";
                                var form = "Artist: ";
                                matchedNodes = xmlData.selectNodes(xpath);
                                var b = matchedNodes.length - 1;
                                for (var i = 0; i < matchedNodes.length; i++)
                                {
                                    form = form + matchedNodes[i].self.nodeValue;
                                    //ako nije zadnji element...
                                    if (i != b) form = form + " / ";
                                }
                                form = form + "\n";
 
                                //Album:
                                xpath = "/resp/release//title/text()";
                                matchedNodes = xmlData.selectNodes(xpath);
                                form = form + "Album: " + matchedNodes[0].self.nodeValue + "\n";
 
                                //Discogs:
                                xpath = "//resp/release";
                                matchedNodes = xmlData.selectNodes(xpath);
                                form = form + "Discogs: http://www.discogs.com/release/" + matchedNodes[0].attributes[0].id + "\n";
                            }
 
                            //Label:
                            xpath = "/resp/release/labels/label";
                            matchedNodes = xmlData.selectNodes(xpath);
                            var b = matchedNodes.length - 1;
                            for (var i = 0; i < matchedNodes.length; i++)
                            {
                                form = form + "Label: " + matchedNodes[i].attributes[0].name;
                                //ako nije zadnji element...
                                if (i != b) form = form + " / ";
                            }
                            form = form + "\n";
 
                            //Catno:
                            matchedNodes = xmlData.selectNodes(xpath);
                            form = form + "Catalog#: " + matchedNodes[0].attributes[0].catno + "\n";
 
                            //Released:
                            xpath = "/resp/release/released/text()";
                            matchedNodes = xmlData.selectNodes(xpath);
                            form = form + "Released: " + matchedNodes[0].self.nodeValue + "\n";
 
                            //Style:
                            var xpath = "/resp/release/styles/style/text()";
                            form = form + "Style: ";
                            matchedNodes = xmlData.selectNodes(xpath);
                            b = matchedNodes.length - 1;
                            for (var i = 0; i < matchedNodes.length; i++)
                            {
                                form = form + matchedNodes[i].self.nodeValue;
                                //ako nije zadnji element...
                                if (i != b) form = form + " / ";
                            }
                            form = form + "\n";
                            form = form + "Quality: " + "\n\n";
 
                            //Tracklist:
                            xpath = "/resp/release/tracklist/track";
                            var tracklist = "";
                            var tempTrack = "";
                            var matchedTracks = xmlData.selectNodes(xpath);
                            alert(matchedTracks.length);
                            //alert(matchedTracks[0].self.childNodes[0].childNodes[0].nodeName);
                            for (var i = 0; i < matchedTracks.length; i++)
                            {
                                var trackChilds = matchedTracks[i].self.childNodes;
                                var position = '';
                                var artist = '';
                                var title = '';
                                var duration = '';
 
                                for (var j = 0; j < trackChilds.length; j++)
                                {
                                    //alert(trackChilds[j].childNodes[0].nodeName);
                                    var nodes = trackChilds[j].childNodes;
                                    for (var z = 0; z < nodes.length; z++)
                                    {
                                        var node = nodes[z];
                                        if (node.nodeName == "position")
                                        {
                                            position = node.childNodes[0].nodeValue;
                                        }
                                        else if (node.nodeName == "artists")
                                        {
                                            var artistNode = node.childNodes;
                                            for (var k = 0; k < artistNode.length; k++)
                                            {
                                                var artistChildNode = artistNode[k].childNodes;
                                                for (var l = 0; l < artistChildNode.length; l++)
                                                {
                                                    if (artistChildNode[l].nodeName == "name")
                                                    {
                                                        artist = artist + artistChildNode[l].childNodes[0].nodeValue + " / ";
                                                    }
                                                }
                                            }
                                            artist = artist.substring(0, artist.lastIndexOf("/"));
                                        }
                                        else if (node.nodeName == "title")
                                        {
                                            title = node.childNodes[0].nodeValue;
                                        }
                                        else if (node.nodeName == "duration")
                                        {
                                            duration = '(' + node.childNodes[0].nodeValue + ')';
                                        }
                                    }
                                    tracklist = tracklist + position + " " + artist + " - " + title + " " + duration + "\n";
                                }
 
                            }
                            form = form + tracklist;
                            alert(form);
                            //alert(tracklist);
 
                        }
                        //od else iz linije 30
                    }
                }
                http.send(null);
            }
 
 
        </script>
    </head>
    <body>
        <table>
            <tr><td>
                <input type="text" id="ajdi" value="2"/>
                <input type="button" onclick="getNewRelease()" name="submitId" value="populate from Discogs"/>
            </td><td></td></tr>
            <tr><td colspan="2"><textarea rows="40" cols="100" id="text"></textarea></td></tr>
        </table>
 
 
        <div id="foo">
 
        </div>
    </body>
 
</html>

Voici le fichier xml

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<?xml version="1.0" encoding="utf-8"?>
<!-- Created with Liquid XML Studio 1.0.8.0 (http://www.liquid-technologies.com) -->
<resp stat="ok" version="1.0" requests="4">
	<release id="1109542" status="Accepted">
		<images>
			<image height="600" type="primary" uri="http://www.discogs.com/image/R-1109542-1192735422.jpeg" uri150="http://www.discogs.com/image/R-150-1109542-1192735422.jpeg" width="581" />
			<image height="600" type="secondary" uri="http://www.discogs.com/image/R-1109542-1192735435.jpeg" uri150="http://www.discogs.com/image/R-150-1109542-1192735435.jpeg" width="580" />
		</images>
		<artists>
			<artist>
				<name>Various</name>
			</artist>
		</artists>
		<title>2OO</title>
		<labels>
			<label catno="ZIQ200CD" name="Planet Mu" />
		</labels>
		<formats>
			<format name="CDr" qty="2">
				<descriptions>
					<description>Compilation</description>
					<description>Promo</description>
					<description>Album</description>
				</descriptions>
			</format>
		</formats>
		<genres>
			<genre>Electronic</genre>
		</genres>
		<styles>
			<style>IDM</style>
			<style>Dubstep</style>
			<style>Breakcore</style>
			<style>Acid</style>
		</styles>
		<country>UK</country>
		<released>2007-10-08</released>
		<notes>Celebrating Planet Mu's 10th birthday and 200th release. In PVC slipcase with printed insert.CD1/CD2 written on CD-R's in marker pen.</notes>
		<tracklist>
			<track>
				<position>1.01</position>
				<artists>
					<artist>
						<name>Ceephax Acid Crew</name>
						<anv>Ceephax</anv>
					</artist>
				</artists>
				<title>Castilian</title>
				<duration>4:54</duration>
			</track>
			<track>
				<position>1.02</position>
				<artists>
					<artist>
						<name>Darqwan</name>
					</artist>
				</artists>
				<title>M/A.. Ximum Reespek</title>
				<duration>5:37</duration>
			</track>
			<track>
				<position>1.03</position>
				<artists>
					<artist>
						<name>Boxcutter</name>
					</artist>
				</artists>
				<title>Good You Dub</title>
				<duration>4:52</duration>
			</track>
			<track>
				<position>1.04</position>
				<artists>
					<artist>
						<name>Gasman, The</name>
					</artist>
				</artists>
				<title>Equino</title>
				<duration>4:51</duration>
			</track>
			<track>
				<position>1.05</position>
				<artists>
					<artist>
						<name>Ital Tek</name>
					</artist>
				</artists>
				<title>Whitemark</title>
				<duration>4:18</duration>
			</track>
			<track>
				<position>1.06</position>
				<artists>
					<artist>
						<name>Parson (2)</name>
					</artist>
				</artists>
				<title>Throw Some Ds</title>
				<duration>4:41</duration>
			</track>
			<track>
				<position>1.07</position>
				<artists>
					<artist>
						<name>Bizzy B</name>
						<join>&amp;</join>
					</artist>
					<artist>
						<name>Equinox (3)</name>
					</artist>
				</artists>
				<title>Merda Style 2004</title>
				<duration>5:11</duration>
			</track>
			<track>
				<position>1.08</position>
				<artists>
					<artist>
						<name>Syntheme</name>
					</artist>
				</artists>
				<title>Finnial (Chevron's Acid Sandwich Bhuna Mix)</title>
				<extraartists>
					<artist>
						<name>Chevron</name>
						<role>Remix</role>
					</artist>
				</extraartists>
				<duration>3:03</duration>
			</track>
			<track>
				<position>1.09</position>
				<artists>
					<artist>
						<name>Venetian Snares</name>
					</artist>
				</artists>
				<title>Devil's Totem</title>
				<duration>4:23</duration>
			</track>
			<track>
				<position>1.10</position>
				<artists>
					<artist>
						<name>Milanese</name>
						<join>Feat.</join>
					</artist>
					<artist>
						<name>Anneka</name>
					</artist>
				</artists>
				<title>Reading You</title>
				<extraartists>
					<artist>
						<name>Anneka</name>
						<role>Featuring</role>
					</artist>
				</extraartists>
				<duration>2:26</duration>
			</track>
			<track>
				<position>1.11</position>
				<artists>
					<artist>
						<name>Julian Fane</name>
					</artist>
				</artists>
				<title>The Moon Is Gone</title>
				<duration>4:33</duration>
			</track>
			<track>
				<position>1.12</position>
				<artists>
					<artist>
						<name>DJ Distance</name>
						<anv>Distance</anv>
					</artist>
				</artists>
				<title>Fallen (Vex'd Remix)</title>
				<extraartists>
					<artist>
						<name>Vex'd</name>
						<role>Remix</role>
					</artist>
				</extraartists>
				<duration>6:18</duration>
			</track>
			<track>
				<position>1.13</position>
				<artists>
					<artist>
						<name>Ambulance</name>
					</artist>
				</artists>
				<title>The Tams</title>
				<duration>6:19</duration>
			</track>
			<track>
				<position>2.01</position>
				<artists>
					<artist>
						<name>Pinch (2)</name>
					</artist>
				</artists>
				<title>Punisher (Loefah's SE25 Remix)</title>
				<extraartists>
					<artist>
						<name>Loefah</name>
						<role>Remix</role>
					</artist>
				</extraartists>
				<duration>5:36</duration>
			</track>
			<track>
				<position>2.02</position>
				<artists>
					<artist>
						<name>Luke Vibert</name>
					</artist>
				</artists>
				<title>Acid Meters</title>
				<duration>3:45</duration>
			</track>
			<track>
				<position>2.03</position>
				<artists>
					<artist>
						<name>FFF</name>
					</artist>
				</artists>
				<title>The Feeling</title>
				<duration>5:43</duration>
			</track>
			<track>
				<position>2.04</position>
				<artists>
					<artist>
						<name>Pinch (2)</name>
					</artist>
				</artists>
				<title>Pepper Spray</title>
				<duration>4:49</duration>
			</track>
			<track>
				<position>2.05</position>
				<artists>
					<artist>
						<name>Shitmat</name>
					</artist>
				</artists>
				<title>Shut Up (Hellfish Remix)</title>
				<extraartists>
					<artist>
						<name>Hellfish</name>
						<role>Remix</role>
					</artist>
				</extraartists>
				<duration>5:41</duration>
			</track>
			<track>
				<position>2.06</position>
				<artists>
					<artist>
						<name>Tim Exile</name>
						<anv>Exile</anv>
						<join>&amp;</join>
					</artist>
					<artist>
						<name>John B</name>
					</artist>
				</artists>
				<title>Broken Language (Exile Mix)</title>
				<extraartists>
					<artist>
						<name>Tim Exile</name>
						<anv>Exile</anv>
						<role>Remix</role>
					</artist>
				</extraartists>
				<duration>5:38</duration>
			</track>
			<track>
				<position>2.07</position>
				<artists>
					<artist>
						<name>Doubtful Guest, The</name>
					</artist>
				</artists>
				<title>Nannita</title>
				<duration>7:11</duration>
			</track>
			<track>
				<position>2.08</position>
				<artists>
					<artist>
						<name>µ-Ziq</name>
					</artist>
				</artists>
				<title>Lexicon</title>
				<duration>4:16</duration>
			</track>
			<track>
				<position>2.09</position>
				<artists>
					<artist>
						<name>Jo Apps</name>
					</artist>
				</artists>
				<title>Kausikan</title>
				<duration>4:21</duration>
			</track>
			<track>
				<position>2.10</position>
				<artists>
					<artist>
						<name>Neil Landstrumm</name>
					</artist>
				</artists>
				<title>Bleep Biopsy</title>
				<duration>4:36</duration>
			</track>
			<track>
				<position>2.11</position>
				<artists>
					<artist>
						<name>Benga</name>
					</artist>
				</artists>
				<title>Broken Dubstep</title>
				<duration>5:33</duration>
			</track>
			<track>
				<position>2.12</position>
				<artists>
					<artist>
						<name>Duran Duran Duran</name>
					</artist>
				</artists>
				<title>Face Blast</title>
				<duration>3:53</duration>
			</track>
			<track>
				<position>2.13</position>
				<artists>
					<artist>
						<name>Mark One</name>
						<anv>MRK 1</anv>
					</artist>
				</artists>
				<title>Sensi Skank</title>
				<duration>4:13</duration>
			</track>
		</tracklist>
	</release>
</resp>

Et enfin la librairie (en pièce jointe) qui permet de parser le xml pour le transformer en code lisible par JSon.

Tout se passe excepté pour la création de la tracklist.

Voici ce qu'il devrait me retourner

Code:

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1.01  	 Ceephax  	Castilian (4:54)
1.02 	Darqwan 	M/A.. Ximum Reespek (5:37)
1.03 	Boxcutter 	Good You Dub (4:52)
1.04 	Gasman, The 	Equino (4:51)
1.05 	Ital Tek 	Whitemark (4:18)
1.06 	Parson (2) 	Throw Some Ds (4:41)
1.07 	Bizzy B & Equinox (3) 	Merda Style 2004 (5:11)
1.08 	Syntheme 	Finnial (Chevron's Acid Sandwich Bhuna Mix) (3:03)  	  
1.09 	Venetian Snares 	Devil's Totem (4:23)
1.10 	Milanese Feat. Anneka 	Reading You (2:26)  	  
1.11 	Julian Fane 	The Moon Is Gone (4:33)
1.12 	Dstance 	Fallen (Vex'd Remix) (6:18)  	  
1.13 	Ambulance 	The Tams (6:19)
2.01 	Pinch (2) 	Punisher (Loefah's SE25 Remix) (5:36)  	  
2.02 	Luke Vibert 	Acid Meters (3:45)
2.03 	FFF 	The Feeling (5:43)
2.04 	Pinch (2) 	Pepper Spray (4:49)
2.05 	Shitmat 	Shut Up (Hellfish Remix) (5:41)  	  
2.06 	Exile & John B 	Broken Language (Exile Mix) (5:38)  	  
2.07 	Doubtful Guest, The 	Nannita (7:11)
2.08 	µ-Ziq 	Lexicon (4:16)
2.09 	Jo Apps 	Kausikan (4:21)
2.10 	Neil Landstrumm 	Bleep Biopsy (4:36)
2.11 	Benga 	Broken Dubstep (5:33)
2.12 	Duran Duran Duran 	Face Blast (3:53)
2.13 	MRK 1 	Sensi Skank (4:13)

En exécutant le code vous remarquerez qu'il ne me retourne pas du tout le résultat escompté.

Si une âme charitable pourrait m'aiguiller, cela serait très gentil. :)

D'avance merci pour vos réponses.

24/10/2008, 13h59
DoubleU
Code:

1 2 3 4 5 tracklist = tracklist + position + " " + artist + " - " + title + " " + duration + "\n"; position = ''; artist = ''; title = ''; duration = '';
Tu oublies de réinitialiser tes variables à chaque tour de boucle, du coup les précédentes valeurs sont conservées.

PS: Ce que tu fais ici, c'est pas du JSON. Ce qu'on appelle JSON c'est un autre mode de transprt qu'xml qui utilise une notation spéciale pour décrire les objets Javascript.

Ben justement la librairie softxmllib transforme le xml en objet lisible par JSon.

Mais je sais aussi que je me mélange les pinceaux entre les requêtes. :aie:

Voici un exemple de ce qu'il me retourne

Code:

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{
	resp:{
		stat:'ok',
		version:1,
		requests:4,
		release:{
			id:1109542,
			status:'Accepted',
			images:{
				image:[
					{
						height:600,
						type:'primary',
						uri:'http://www.discogs.com/image/R-1109542-1192735422.jpeg',
						uri150:'http://www.discogs.com/image/R-150-1109542-1192735422.jpeg',
						width:581
					},
					{
						height:600,
						type:'secondary',
						uri:'http://www.discogs.com/image/R-1109542-1192735435.jpeg',
						uri150:'http://www.discogs.com/image/R-150-1109542-1192735435.jpeg',
						width:580
					}
				]
			},
			artists:{
				artist:{
					name:'Various'
				}
			},
			title:'2OO',
			labels:{
				label:{
					catno:'ZIQ200CD',
					name:'Planet Mu'
				}
			},
			formats:{
				format:{
					name:'CDr',
					qty:2,
					descriptions:{
						description:[
							'Compilation',
							'Promo',
							'Album'
						]
					}
				}
			},
			genres:{
				genre:'Electronic'
			},
			styles:{
				style:[
					'IDM',
					'Dubstep',
					'Breakcore',
					'Acid'
				]
			},
			country:'UK',
			released:'2007-10-08',
			notes:'Celebrating Planet Mu\'s 10th birthday and 200th release. In PVC slipcase with printed insert.CD1/CD2 written on CD-R\'s in marker pen.',
			tracklist:{
				track:[
					{
						position:1.01,
						artists:{
							artist:{
								name:'Ceephax Acid Crew',
								anv:'Ceephax'
							}
						},
						title:'Castilian',
						duration:'4:54'
					},
					{
						position:1.02,
						artists:{
							artist:{
								name:'Darqwan'
							}
						},
						title:'M/A.. Ximum Reespek',
						duration:'5:37'
					},
					{
						position:1.03,
						artists:{
							artist:{
								name:'Boxcutter'
							}
						},
						title:'Good You Dub',
						duration:'4:52'
					},
					{
						position:1.04,
						artists:{
							artist:{
								name:'Gasman, The'
							}
						},
						title:'Equino',
						duration:'4:51'
					},
					{
						position:1.05,
						artists:{
							artist:{
								name:'Ital Tek'
							}
						},
						title:'Whitemark',
						duration:'4:18'
					},
					{
						position:1.06,
						artists:{
							artist:{
								name:'Parson (2)'
							}
						},
						title:'Throw Some Ds',
						duration:'4:41'
					},
					{
						position:1.07,
						artists:{
							artist:[
								{
									name:'Bizzy B',
									join:'&amp;'
								},
								{
									name:'Equinox (3)'
								}
							]
						},
						title:'Merda Style 2004',
						duration:'5:11'
					},
					{
						position:1.08,
						artists:{
							artist:{
								name:'Syntheme'
							}
						},
						title:'Finnial (Chevron\'s Acid Sandwich Bhuna Mix)',
						extraartists:{
							artist:{
								name:'Chevron',
								role:'Remix'
							}
						},
						duration:'3:03'
					},
					{
						position:1.09,
						artists:{
							artist:{
								name:'Venetian Snares'
							}
						},
						title:'Devil\'s Totem',
						duration:'4:23'
					},
					{
						position:1.1,
						artists:{
							artist:[
								{
									name:'Milanese',
									join:'Feat.'
								},
								{
									name:'Anneka'
								}
							]
						},
						title:'Reading You',
						extraartists:{
							artist:{
								name:'Anneka',
								role:'Featuring'
							}
						},
						duration:'2:26'
					},
					{
						position:1.11,
						artists:{
							artist:{
								name:'Julian Fane'
							}
						},
						title:'The Moon Is Gone',
						duration:'4:33'
					},
					{
						position:1.12,
						artists:{
							artist:{
								name:'DJ Distance',
								anv:'Distance'
							}
						},
						title:'Fallen (Vex\'d Remix)',
						extraartists:{
							artist:{
								name:'Vex\'d',
								role:'Remix'
							}
						},
						duration:'6:18'
					},
					{
						position:1.13,
						artists:{
							artist:{
								name:'Ambulance'
							}
						},
						title:'The Tams',
						duration:'6:19'
					},
					{
						position:2.01,
						artists:{
							artist:{
								name:'Pinch (2)'
							}
						},
						title:'Punisher (Loefah\'s SE25 Remix)',
						extraartists:{
							artist:{
								name:'Loefah',
								role:'Remix'
							}
						},
						duration:'5:36'
					},
					{
						position:2.02,
						artists:{
							artist:{
								name:'Luke Vibert'
							}
						},
						title:'Acid Meters',
						duration:'3:45'
					},
					{
						position:2.03,
						artists:{
							artist:{
								name:'FFF'
							}
						},
						title:'The Feeling',
						duration:'5:43'
					},
					{
						position:2.04,
						artists:{
							artist:{
								name:'Pinch (2)'
							}
						},
						title:'Pepper Spray',
						duration:'4:49'
					},
					{
						position:2.05,
						artists:{
							artist:{
								name:'Shitmat'
							}
						},
						title:'Shut Up (Hellfish Remix)',
						extraartists:{
							artist:{
								name:'Hellfish',
								role:'Remix'
							}
						},
						duration:'5:41'
					},
					{
						position:2.06,
						artists:{
							artist:[
								{
									name:'Tim Exile',
									anv:'Exile',
									join:'&amp;'
								},
								{
									name:'John B'
								}
							]
						},
						title:'Broken Language (Exile Mix)',
						extraartists:{
							artist:{
								name:'Tim Exile',
								anv:'Exile',
								role:'Remix'
							}
						},
						duration:'5:38'
					},
					{
						position:2.07,
						artists:{
							artist:{
								name:'Doubtful Guest, The'
							}
						},
						title:'Nannita',
						duration:'7:11'
					},
					{
						position:2.08,
						artists:{
							artist:{
								name:'µ-Ziq'
							}
						},
						title:'Lexicon',
						duration:'4:16'
					},
					{
						position:2.09,
						artists:{
							artist:{
								name:'Jo Apps'
							}
						},
						title:'Kausikan',
						duration:'4:21'
					},
					{
						position:2.1,
						artists:{
							artist:{
								name:'Neil Landstrumm'
							}
						},
						title:'Bleep Biopsy',
						duration:'4:36'
					},
					{
						position:2.11,
						artists:{
							artist:{
								name:'Benga'
							}
						},
						title:'Broken Dubstep',
						duration:'5:33'
					},
					{
						position:2.12,
						artists:{
							artist:{
								name:'Duran Duran Duran'
							}
						},
						title:'Face Blast',
						duration:'3:53'
					},
					{
						position:2.13,
						artists:{
							artist:{
								name:'Mark One',
								anv:'MRK 1'
							}
						},
						title:'Sensi Skank',
						duration:'4:13'
					}
				]
			}
		}
	}
}

24/10/2008, 15h23
DoubleU

C'est quoi l'interet d'utiliser du JSON ici (et ou tu le fais d'ailleurs, j'en avais pas vu)?
Parce que j'ai vu que tu faisais du xpath partout, donc c'est bien que tu manipules du xml nan? (me dit pas que tu fais du xpath sur du json ^^)

C'est justement ce que j'indiquais plus haut.

Je me mélange les pinceaux entre les requêtes xpath et les requêtes json.

Et c'est en train de m'embrouiller de plus en plus.

Je suis en train de tout doucement m'énerver avec ces requêtes où je n'y comprends rien.

Maintenant j'ai une question.

Prenons par exemple un xml

Code:

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<resp stat="ok" version="1.0" requests="7">
    <release id="1506005" status="Accepted">
        <images>
            <image height="484" type="secondary" uri="http://www.discogs.com/image/R-1506005-1224752748.jpeg"
                   uri150="http://www.discogs.com/image/R-150-1506005-1224752748.jpeg" width="482"/>
        </images>
        <artists>
            <artist>
                <name>Beenie Man</name>
                <join>&amp;</join>
            </artist>
            <artist>
                <name>Lukie D</name>
                <anv>Lukie D.</anv>
                <join>&amp;</join>
            </artist>
            <artist>
                <name>Black Pearl (5)</name>
            </artist>
        </artists>
        <title>Bag It Up</title>
        <labels>
            <label catno="none" name="Shocking Vibes"/>
        </labels>
        <extraartists>
            <artist>
                <name>Shocking Vibes Crew, The</name>
                <anv>Shocking Vibes Crew</anv>
                <role>Arranged By</role>
            </artist>
            <artist>
                <name>Andrew Thomas (2)</name>
                <role>Mixed By</role>
            </artist>
            <artist>
                <name>Patrick Roberts</name>
                <role>Producer</role>
            </artist>
        </extraartists>
        <formats>
            <format name="Vinyl" qty="1">
                <descriptions>
                    <description>7"</description>
                    <description>45 RPM</description>
                </descriptions>
            </format>
        </formats>
        <genres>
            <genre>Reggae</genre>
        </genres>
        <styles>
            <style>Dancehall</style>
        </styles>
        <country>Jamaica</country>
        <released>1997</released>
        <notes>etchings in runout grooves:
            DSR ASIDE-19073-BAG IT UP-GEOVANNI
            DSR BSIDE-19074-VER(BAG IT UP)-GEOVANNI
        </notes>
        <tracklist>
            <track>
                <position>A</position>
                <title>Bag It Up</title>
                <duration/>
            </track>
            <track>
                <position>B</position>
                <title>Version Instrumental</title>
                <duration/>
            </track>
        </tracklist>
    </release>
</resp>

Si j'utilise un getElementbyTagName("artist"), il va me retourner tous les élements "artist" juste??

Maintenant comment peut-on différencier les différents tag artist, car certains ne sont pas enfants des même tags.

Moi par exemple je voudrais récupérer tous les "artist" étant enfant de "artists"
donc récupérer les /resp/release/tracklist/track/artists/artist et pas les autres.

Comment dois-je faire?

Merci beaucoup pour ton aide.

24/10/2008, 16h50
DoubleU

Citation:

Si j'utilise un getElementbyTagName("artist"), il va me retourner tous les élements "artist" juste??

Oui ^^

Citation:

Maintenant comment peut-on différencier les différents tag artist, car certains ne sont pas enfants des même tags.

Moi par exemple je voudrais récupérer tous les "artist" étant enfant de "artists"
donc récupérer les /resp/release/tracklist/track/artists/artist et pas les autres.

A priori, je vois deux solutions, qui reviennent grosso modo au meme:
1/ recupérer /resp/release/tracklist/track/artists/, et parcourir ses fils
2/ récupérer //artist et parcourir seulement les noeuds qui ont pour parent /artists. Comme ca tu élimines ceux qui viennent de //extraartists
25/10/2008, 16h24
Bovino

Citation:

Moi par exemple je voudrais récupérer tous les "artist" étant enfant de "artists"

Code:

getElementsByTagName('artists').getElementsByTagNagName('artist');

Je suis désolé de revenir à la charge mais il y a une chose que je ne comprends pas

voici le xml

Code:

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<resp stat="ok" version="1.0" requests="7">
    <release id="1506005" status="Accepted">
        <images>
            <image height="484" type="secondary" uri="http://www.discogs.com/image/R-1506005-1224752748.jpeg"
                   uri150="http://www.discogs.com/image/R-150-1506005-1224752748.jpeg" width="482"/>
        </images>
        <artists>
            <artist>
                <name>Beenie Man</name>
                <join>&amp;</join>
            </artist>
            <artist>
                <name>Lukie D</name>
                <anv>Lukie D.</anv>
                <join>&amp;</join>
            </artist>
            <artist>
                <name>Black Pearl (5)</name>
            </artist>
        </artists>
        <title>Bag It Up</title>
        <labels>
            <label catno="none" name="Shocking Vibes"/>
        </labels>
        <extraartists>
            <artist>
                <name>Shocking Vibes Crew, The</name>
                <anv>Shocking Vibes Crew</anv>
                <role>Arranged By</role>
            </artist>
            <artist>
                <name>Andrew Thomas (2)</name>
                <role>Mixed By</role>
            </artist>
            <artist>
                <name>Patrick Roberts</name>
                <role>Producer</role>
            </artist>
        </extraartists>
        <formats>
            <format name="Vinyl" qty="1">
                <descriptions>
                    <description>7"</description>
                    <description>45 RPM</description>
                </descriptions>
            </format>
        </formats>
        <genres>
            <genre>Reggae</genre>
        </genres>
        <styles>
            <style>Dancehall</style>
        </styles>
        <country>Jamaica</country>
        <released>1997</released>
        <notes>etchings in runout grooves:
            DSR ASIDE-19073-BAG IT UP-GEOVANNI
            DSR BSIDE-19074-VER(BAG IT UP)-GEOVANNI
        </notes>
        <tracklist>
            <track>
                <position>A</position>
                <title>Bag It Up</title>
                <duration/>
            </track>
            <track>
                <position>B</position>
                <title>Version Instrumental</title>
                <duration/>
            </track>
        </tracklist>
    </release>
</resp>

et voici le javascript

Code:

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 <script type="text/javascript">
            var http = false;
 
            function getHTTPObject()
            {
                var xmlhttp = false;
 
                if (window.ActiveXObject)
                {
                    try
                    {
                        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                    }
                    catch(e)
                    {
                        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                    }
                }
                else if (!xmlhttp && typeof XMLHttpRequest != 'undefined')
                {
                    xmlhttp = new XMLHttpRequest();
                    if (xmlhttp.overrideMimeType)
                        xmlhttp.overrideMimeType('text/xml');
                    if (!xmlhttp)
                        xmlhttp = null;
                }
 
                return xmlhttp;
            }
 
            function getNewRelease()
            {
                var urlic = "1506005.xml";
 
                http = getHTTPObject();
                http.onreadystatechange = getReleaseInfo;
                http.open("GET", urlic, true);
                http.send(null);
            }
 
            function getReleaseInfo()
            {
                var form = '';
 
                if (http.readyState == 4)
 
                    if (http.status == 200)
                    {
                        var test = http.responseXML.documentElement;
                        form = form + "Artist: ";
                            form = form + getArtists(test);
                            form = form + "\n";
                            form = form + "Album: ";
                            //form = form + getAlbum(xmlRelease.selectNodes("/resp/release//title/text()"));
                            form = form + "\n";
                            form = form + "Discogs: ";
                            form = form + getDiscogsLink(test);
                            form = form + "\n";
                            /*form = form + "Label: ";
                            form = form + getLabel(xmlRelease.selectNodes("/resp/release/labels/label"));
                            form = form + "\n";
                            form = form + "Catalog#: ";
                            form = form + getCatalog(xmlRelease.selectNodes("/resp/release/labels/label"));
                            form = form + "\n";
                            form = form + "Released: ";
                            form = form + getReleased(xmlRelease.selectNodes("/resp/release/released/text()"));
                            form = form + "\n";
                            form = form + "Style: ";
                            form = form + getStyle(xmlRelease.selectNodes("/resp/release/styles/style/text()"));
                            form = form + "\n";
                            form = form + "Quality: ";
                            form = form + "\n\n";
                            form = form + "Tracklist: ";
                            form = form + "\n\n";
                            form = form + getTracklist(xmlRelease.selectNodes("/resp/release/tracklist"));
                            form = form + "\n";
                            document.getElementById("text").value = form;*/
                            //document.getElementById("text").value = JSON.stringify(xmlRelease.selectNodes("/resp/release/tracklist"));
 
 
 
                    }
                    else
                    {
                        alert('Server is too busy or not responding in time; please try again later.');
                    }
 
            }
 
            function getArtists(test)
            {
                var artists;
                var artistsNodes = test.getElementsByTagName("artists");
                alert (artistsNodes.length);
                for(var i = 0; i < artistsNodes.length; i++)
                {
                    if(artistsNodes[i].parentNode.tagName == "release")
                    {
                        artists = artistsNodes[i];
                    }
                }
 
                var artist = artists.getElementsByTagName("artist")[0].childNodes;
                alert(artist.length);
 
                /*var nodes = artistNode[0].self.childNodes;
 
                for (var j = 0; j < nodes.length; j++)
                {
 
                    var artistName = "";
                    var anv = "";
                    var join = "";
                    var node = nodes[j].childNodes;
 
                    for (var k = 0; k < node.length; k++)
                    {
 
                        var n = node[k];
                        if (n.nodeName == "name")
                        {
                            artistName = n.childNodes[0].nodeValue;
                        }
                        if (n.nodeName == "anv")
                        {
                            anv = n.childNodes[0].nodeValue;
                        }
                        if (n.nodeName == "join")
                        {
                            join = n.childNodes[0].nodeValue;
                        }
                    }
 
                    if (anv.length == 0 && anv == "")
                    {
                        artists = artists + artistName + " ";
                    }
                    else artists = artists + anv + " ";
 
                    if (join.length > 0)
                    {
                        artists = artists + join + " ";
                    }
 
                }                
                return artists.replace(/^\s+/g, '').replace(/\s+$/g, '');*/
            }
 
            function getDiscogsLink(xml)
            {                
                var releaseId = xml.getElementsByTagName("release")[0].attributes.getNamedItem("id").nodeValue;
                return "http://www.discogs.com/release/"+ releaseId;
            }</script>

Comment se fait-il que IE m'affiche 2 dans la méthode getArtists alors que FF m'affiche 5 après la ligne

Code:

artists.getElementsByTagName("artist")[0].childNodes

. :marteau:

Merci pour vos réponses

27/10/2008, 11h51
DoubleU

Parce qu'une des joies du développement web, c'est que les navigateurs ne gèrent pas le DOM exactement de la même facon.

IE gere le truc de la façon dont on l'attend naturellement, alors que FF va lui te rajouter les noeuds texte qui correspondent à l'indentation de ton fichier (c'est a dire, les \n, les \t, etc...). C'est pour ca que les fonctions comme childNodes, nextSibling et prevSibling sont à manier avec précaution.
27/10/2008, 12h04
Stessy

Voilà pourquoi je n'aime pas le développement web :aie:

Je vais marquer le sujet résolu, vu que j'ai recommencé depuis le début les fonctions. Et comme je n'utilise plus JSON, ce topic n'a plus de raison d'être alimenté.

En tout cas un grand merci pour votre aide.