在我的rails项目中,我使用pubnub实时更新一些内容,并使用把手进行实时更新模板。以下是发布更新的代码
subscriber_channels.each do |subscriber_channel|
$pubnub_server_subscription.publish(
:channel => subscriber_channel,
:message => {event: 'LIVE_FEED',
attributes: {
live_feed_id: self.id,
feedable_type: self.feedable_type,
feedable_id: self.feedable_id,
profile_picture_url: "#{self.action_user.profile_photo_thumb}",
action_user_name: "#{self.action_user.full_name}",
live_feed_content: "#{self.content}",
feed_time: "#{self.created_at.strftime("%H:%M")}",
reference_post_id: reference_post_id,
reference_post_type: self.reference_post_type
}
},
callback: lambda { |info| puts info }
)
end
和模板我的代码在
下面PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
var livefeedTemplate = Handlebars.compile($('#top-live-feed-template').html());
var outputHtml = livefeedTemplate(message.attributes);
$('#live-feed-table').prepend(outputHtml);
}
到目前为止,上面的代码工作正常。但是在调用模板之前我需要做一些检查。我想要这样的东西
PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
if feedable_type == "image" #this feedable_type from published attributes above
var livefeedTemplate = Handlebars.compile($('#top-live-feed-template').html());
var outputHtml = livefeedTemplate(message.attributes);
$('#live-feed-table').prepend(outputHtml);
}
}
feedable_type这里是上面发布的属性。那我该怎么做呢?或者我该怎么办?
console.log( "update a <div> with received event: feedable_type");
答案 0 :(得分:0)
试试这个:
PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
if(message.attributes.feedable_type == "image"){
var livefeedTemplate = Handlebars.compile($('#top-live-feed-template').html());
var outputHtml = livefeedTemplate(message.attributes);
$('#live-feed-table').prepend(outputHtml);
}
}
如果这不起作用,请提供更多详细信息。