Creating a Menu from JSON

Question

I am trying to create a dynamic menu using jQuery UI.

I will be fetching entries from a JSON file and creating my menu items.I decided to do a small demo before i tr

Answer 1

Just iterate your JSON.menu array and generate the menu from it (renamed JSON -> data ...):

$(function () {
    var getMenuItem = function (itemData) {
        var item = $("<li>")
            .append(
        $("<a>", {
            href: '#' + itemData.link,
            html: itemData.name
        }));
        if (itemData.sub) {
            var subList = $("<ul>");
            $.each(itemData.sub, function () {
                subList.append(getMenuItem(this));
            });
            item.append(subList);
        }
        return item;
    };

    var $menu = $("#menu");
    $.each(data.menu, function () {
        $menu.append(
            getMenuItem(this)
        );
    });
    $menu.menu();
});

http://jsfiddle.net/9uhc3/5/

Answer 2

Like this (recursive function) :

function parseMenu(ul, menu) {
    for (var i=0;i<menu.length;i++) {
        var li=$(ul).append('<li><a href="'+menu[i].link+'">'+menu[i].name+'</a></li>');
        if (menu[i].sub!=null) {
            var subul=$('<ul id="submenu'+menu[i].link+'"></ul>');
            $(li).append(subul);
            parseMenu($(subul), menu[i].sub);
        }
    }
}

var menu=$('#menu');
parseMenu(menu, JSON.menu);

http://jsfiddle.net/uDTk4/ - including the JSON (object) from above.

Produced output / menu :

<ul id="menu">
    <li><a href="0">Croatia</a></li>
    <li><a href="1">England</a></li>
    <ul id="submenu1">
        <li><a href="0-0">Arsenal</a></li>
        <li><a href="0-1">Liverpool</a></li>
        <li><a href="0-2">Manchester United</a></li>
    </ul>
    <li><a href="2">Spain</a></li>
    <ul id="submenu2">
        <li><a href="2-0">Barcelona</a></li>
        <li><a href="2-1">Real Madrid</a></li>
    </ul>
    <li><a href="3">Germany</a></li>
    <ul id="submenu3">
        <li><a href="3-1">Bayern Munich</a></li>
        <li><a href="3-2">Borrusia Dortmund</a></li>
    </ul>
</ul>

Answer 3

Your json is invalid. Correct json is below.

{"menu":[
    {"name": "Croatia", "link": "0", "sub": null
    },
    {"name": "England", "link": "1", "sub": [
        {"name": "Arsenal","link": "0-0", "sub": null},
        {"name": "Liverpool","link": "0-1", "sub": null},
        {"name": "Manchester United","link": "0-2", "sub": null}
        ]},
    {"name": "Spain", "link": "2", "sub": [
        {"name": "Barcelona","link": "2-0", "sub": null},
        {"name": "Real Madrid","link": "2-1", "sub": null}
    ]},        
    {"name": "Germany", "link": "3","sub": [
        {"name": "Bayern Munich","link": "3-1", "sub": null},
        {"name": "Borrusia Dortmund","link": "3-2", "sub": null}
        ]}
]}