发布不正确更新?

时间:2013-01-15 14:43:30

标签: meteor

我无法更新Meteor.publish以响应更改的表单字段。第一次发布调用似乎很难,所以查询在该子集中运行,直到重新加载页面。

我遵循了this post中的方法,但我没有任何运气。

非常感谢任何帮助。

在lib中:

SearchResults = new Meteor.Collection("Animals");

function getSearchResults(query) {
  re = new RegExp(query, "i");
  return SearchResults.find({$and: [ {is_active: true}, {id_species: {$regex: re}} ] }, {limit: 10});
}

在客户端:

Session.set('query', null);

Template.searchQuery.events({
  'keyup .query' : function (event, template) {
    query = template.find('.query').value
    Session.set("query", query);
  }
});

Meteor.autosubscribe(function() {
  if (Session.get("query")) {
    Meteor.subscribe("search_results", Session.get("query"));
  }
});

Template.searchResults.results = function () {
  return getSearchResults(Session.get("query"));
}

在服务器上:

Meteor.publish("search_results", getSearchResults);

模板:            寻找动物     

<body>
  {{> searchQuery}}

  {{> searchResults}}
</body>

<template name="searchQuery">
  <form>
  <label>Search</label>
  <input type="text" class="query" />
</form>
</template>

<template name="searchResults">
  {{#each results}}
  <div>
    {{_id}}
  </div>
  {{/each}}
</template>

更新[错误]

显然,问题是我正在使用的集合(正确)在Meteor之外生成,但 Meteor并不能正确支持Mongo的ObjectIds。 Context {{ 3}}和here

转换代码显示在那里,礼貌related Stackoverflow question

db.nodes.find({}).forEach(function(el){
    db.nodes.remove({_id:el._id}); 
    el._id = el._id.toString(); 
    db.nodes.insert(el); 
});

更新[右]

事实证明,这是RegExp / $regex的问题。 antoviaque解释道。而不是:

function getSearchResults(query) {
  re = new RegExp(query, "i");
  return SearchResults.find({$and: [ {is_active: true}, {id_species: {$regex: re}} ] }, {limit: 10});
}

目前,人们需要这样做:

function getSearchResults(query) {
  // Assumes query is regex without delimiters e.g., 'rot'
  // will match 2nd & 4th rows in Tim's sample data below
  return SearchResults.find({$and: [ {is_active: true}, {id_species: {$regex: query, $options: 'i'}} ] }, {limit: 10});
}

这很有趣。

PS - This thread具有一些ObjectId功能(SearchResults = new Meteor.Collection("Animals", {idGeneration: "MONGO"});

1 个答案:

答案 0 :(得分:1)

这是我的工作示例:

UPDATE 给出的原始javascript是正确的。如评论中所述,问题原来是meteor doesn't yet support ObjectIds

HTML:

<body>
  {{> searchQuery }}
  {{> searchResults}}
</body>

<template name="searchQuery">
  <form>
  <label>Search</label>
  <input type="text" class="query" />
</form>
</template>

<template name="searchResults">
  {{#each results}}
  <div>
     {{id_species}} | {{name}} - {{_id}}
  </div>
  {{/each}}
</template>

使用Javascript:

Animals = new Meteor.Collection("Animals");

function _get(query) {
    re = new RegExp(query, "i");
    console.log("rerunning query: " + query);
    return Animals.find({$and: [ {is_active: true}, {id_species: {$regex: re}} ] }, {limit: 10});
};

if (Meteor.isClient) {

    Session.set("query", "");

    Meteor.autosubscribe(function() {
        Meteor.subscribe("animals", Session.get("query"));
    });

    Template.searchQuery.events({
      'keyup .query' : function (event, template) {
        query = template.find('.query').value
        Session.set("query", query);
      }
    });

    Template.searchResults.results = function () {
        return _get(Session.get("query"));              
    }
}

if (Meteor.isServer) {
    Meteor.startup(function() {
        if (Animals.find().count() === 0) {
            Animals.insert({name: "panda", is_active: true, id_species: 'bear'});
            Animals.insert({name: "panda1", is_active: true, id_species: 'bearOther'});
            Animals.insert({name: "panda2", is_active: true, id_species: 'bear'});
            Animals.insert({name: "panda3", is_active: true, id_species: 'bearOther'}); 
        }
    });
    Meteor.publish("animals", _get);
}