Meteor Flow Router 设置示例。com/singlePostPage

Question

我无法创建路由来在 Meteor 中显示单个 post with flowrouter 和 blaze。

这是我目前所知道的，但我确信它大部分是错误的！

publications.js

Meteor.publish('singlePost', function (postId) {
  return Posts.find({ _id: postId });
});

Router.js

FlowRouter.route("/posts/:_id", {
    name: "postPage",
    subscriptions: function (params, queryParams) {
     this.register('postPage', Meteor.subscribe('singlePost'));
 },
    action: function(params, queryParams) {
        BlazeLayout.render("nav", {yield: "postPage"} )
    }
});

singlePost.JS

Template.postPage.helpers({
  thisPost: function(){
    return Posts.findOne();
  }
});

singlePost.html

<template name="postPage">
  {{#with thisPost}}
    <li>{{title}}</li>
  {{/with}}
</template>

我以前用 Iron router 做，但现在对 Flow router 感到困惑。

Answer 1

首先不要使用 FlowRouter 订阅。这将很快被弃用。使用流星发布订阅。首先在 routes.js:

    // http://app.com/posts/:_id
    FlowRouter.route('/posts/:id', {
        name: "postPage",
        action: function(params, queryParams) {
            BlazeLayout.render("nav", {yield: "postPage"} )
        }
    });

然后在创建模板时使用 Meteor 的订阅进行订阅：

// Template onCreated
Template.postPage.onCreated(function() {
    // Subscribe only the relevant subscription to this page
    var self = this;
    self.autorun(function() { // Stops all current subscriptions
        var id = FlowRouter.getParam('id'); // Get the collection id from the route parameter
        self.subscribe('singlePost', id); // Subscribe to the single entry in the collection with the route params id
    });
});

那么帮手将是：

// Template helper functions
Template.postPage.helpers({
    thisPost: function() {
        // Get the single entry from the collection with the route params id
        var id = FlowRouter.getParam('id');
        var post = Posts.findOne({ // Get the selected entry data from the collection with the given id.
            _id: id
        }) || {};
        return post;
    }
});

您还需要检查 html 中的订阅是否准备就绪。

{{#if Template.subscriptionsReady}}
    {{#with thisPost}}
        <li>{{title}}</li>
    {{/with}}
{{else}}
    <p>nothing to show</p>
{{/if}}

Meteor Flow Router 设置示例。com/singlePostPage

Meteor Flow Router setting up example.com/singlePostPage

javascript

meteor

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meteor-blaze

flow-router