Ruby on rails 如何在RubyonRails中从视图访问pubnub的已发布属性
在我的rails项目中,我使用pubnub来实时更新一些东西,并使用Handlebar作为实时更新模板。下面是发布更新的代码Ruby on rails 如何在RubyonRails中从视图访问pubnub的已发布属性,ruby-on-rails,handlebars.js,pubnub,Ruby On Rails,Handlebars.js,Pubnub,在我的rails项目中,我使用pubnub来实时更新一些东西,并使用Handlebar作为实时更新模板。下面是发布更新的代码 subscriber_channels.each do |subscriber_channel| $pubnub_server_subscription.publish( :channel => subscriber_channel, :message => {event:
subscriber_channels.each do |subscriber_channel|
$pubnub_server_subscription.publish(
:channel => subscriber_channel,
:message => {event: 'LIVE_FEED',
attributes: {
live_feed_id: self.id,
feedable_type: self.feedable_type,
feedable_id: self.feedable_id,
profile_picture_url: "#{self.action_user.profile_photo_thumb}",
action_user_name: "#{self.action_user.full_name}",
live_feed_content: "#{self.content}",
feed_time: "#{self.created_at.strftime("%H:%M")}",
reference_post_id: reference_post_id,
reference_post_type: self.reference_post_type
}
},
callback: lambda { |info| puts info }
)
end
对于模板,我的代码如下
PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
var livefeedTemplate = Handlebars.compile($('#top-live-feed-template').html());
var outputHtml = livefeedTemplate(message.attributes);
$('#live-feed-table').prepend(outputHtml);
}
到目前为止,上述代码工作正常。但是在调用模板之前,我需要做一些检查。我想要这样的东西
PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
if feedable_type == "image" #this feedable_type from published attributes above
var livefeedTemplate = Handlebars.compile($('#top-live-feed-template').html());
var outputHtml = livefeedTemplate(message.attributes);
$('#live-feed-table').prepend(outputHtml);
}
}
feedable_type这里是上面发布的属性。那我该怎么做呢?或者我怎么能做这样的事
console.log( "update a <div> with received event: feedable_type");
console.log(“用接收到的事件更新a:feedable_type”);
试试这个:
PUBNUB_CLIENT.events.bind("LIVE_FEED", function (message) {
if(message.attributes.feedable_type == "image"){
var livefeedTemplate = Handlebars.compile($('#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。您使用的是PubNub Gem还是PubNub JavaScript SDK?