I'm currently developing a tumblr theme and have built a jQuery JSON thingamabob that uses the Tumblr API
to do the following:
The user would click on the "post type" link (e.g. Video Posts), at which stage jQuery would use JSON
to grab all the posts that's related
to that type and then dynamically display them in a designated area.
Now everything works absolutely peachy, except that with Tumblr being Tumblr and their servers taking a knock every now and then, the Tumblr API thingy is sometimes offline. Now I can't foresee when this function will be down, which is why I want
to display some generic error message if JSON (for whatever reason) was unable
to load the post.
You'll see I've already written some code
to show an error message when jQuery can't find any posts related
to that post type BUT it doesn't cover any server errors. Note: I sometimes get this error:
Failed
to load resource: the server responded with a status of 503 (Service Temporarily Unavailable)
It is for this 503 Error message that I need
to write some code, but I'm slightly clueless :)
Here's the jQuery JSON code:
$('ul.right li').find('a').click(function() {
var postType = this.className;
var count = 0;
byCategory(postType);
return false;
function byCategory(postType, callback) {
$.getJSON('{URL}/api/read/json?type=' + postType + '&callback=?', function(data) {
var article = [];
$.each(data.posts, function(i, item) {
// i = index
// item = data for a particular post
switch(item.type) {
case 'photo':
article[i] = '<div class="post_wrap"><div class="photo" style="padding-bottom:5px;">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/XSTldh6ds/photo_icon.png" alt="type_icon"/></a>'
+ '<a href="' + item.url + '" title="{Title}"><img src="'
+ item['photo-url-500']
+ '"alt="image" /></a></div></div>';
count = 1;
break;
case 'video':
article[i] = '<div class="post_wrap"><div class="video" style="padding-bottom:5px;">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon">'
+ '<img src="http://static.tumblr.com/ewjv7ap/nuSldhclv/video_icon.png" alt="type_icon"/></a>'
+ '<span style="margin: auto;">'
+ item['video-player']
+ '</span>'
+ '</div></div>';
count = 1;
break;
case 'audio':
if (use_IE == true) {
article[i] = '<div class="post_wrap"><div class="regular">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/R50ldh5uj/audio_icon.png" alt="type_icon"/></a>'
+ '<h3><a href="'
+ item.url
+ '">'
+ item['id3-artist']
+' - '
+ item['id3-title']
+ '</a></h3>'
+ '</div></div>';
} else {
article[i] = '<div class="post_wrap"><div class="regular">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/R50ldh5uj/audio_icon.png" alt="type_icon"/></a>'
+ '<h3><a href="'
+ item.url
+ '">'
+ item['id3-artist']
+' - '
+ item['id3-title']
+ '</a></h3><div class="player">'
+ item['audio-player']
+ '</div>'
+ '</div></div>';
};
count = 1;
break;
case 'regular':
article[i] = '<div class="post_wrap"><div class="regular">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/dwxldhck1/regular_icon.png" alt="type_icon"/></a><h3><a href="'
+ item.url
+ '">'
+ item['regular-title']
+ '</a></h3><div class="description_container">'
+ item['regular-body']
+ '</div></div></div>';
count = 1;
break;
case 'quote':
article[i] = '<div class="post_wrap"><div class="quote">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/loEldhcpr/quote_icon.png" alt="type_icon"/></a><blockquote><h3><a href="' + item.url + '" title="{Title}">'
+ item['quote-text']
+ '</a></h3></blockquote><cite>- '
+ item['quote-source']
+ '</cite></div></div>';
count = 1;
break;
case 'conversation':
article[i] = '<div class="post_wrap"><div class="chat">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/MVuldhcth/conversation_icon.png" alt="type_icon"/></a><h3><a href="'
+ item.url
+ '">'
+ item['conversation-title']
+ '</a></h3></div></div>';
count = 1;
break;
case 'link':
article[i] = '<div class="post_wrap"><div class="link">'
+ '<a href="' + item.url + '" title="{Title}" class="type_icon"><img src="http://static.tumblr.com/ewjv7ap/EQGldhc30/link_icon.png" alt="type_icon"/></a><h3><a href="'
+ item['link-url']
+ '" target="_blank">'
+ item['link-text']
+ '</a></h3></div></div>';
count = 1;
break;
default:
alert('
No Entries Found.');
};
}) //
end each
if (!(count == 0)) {
$('#content_right')
.hide('fast')
.html('<div class="first_div"><span class="left_corner"></span><span class="right_corner"></span><h2>Displaying '
+ postType
+ ' Posts Only</h2></div>'
+ article.join(''))
.slideDown('fast')
} else {
$('#content_right')
.hide('fast')
.html('<div class="first_div"><span class="left_corner"></span><span class="right_corner"></span><h2>Hmmm, currently there are
no '
+ postType
+ ' posts
to display</h2></div>')
.slideDown('fast')
}
//
end getJSON
}); //
end byCategory
}
});
If you'd like
to see the demo in action, check out Elegantem but do note that everything might work absolutely fine for you (or not), depending on Tumblr's temperament.
