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POmongoid query rails 3
 

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    <p>brand new to MongoDB / mongoid and still pretty green on ruby / rails</p> <p>on the rails console:</p> <pre><code>t = Task.all(:conditions =&gt; {:title =&gt; "task2"}) =&gt; #&lt;Mongoid::Criteria selector: {:title=&gt;"task2"}, options: {}, class: Task, embedded: false&gt; &gt;&gt; t.first =&gt; #&lt;Task _id: 4d7e2cdb73ec3227dd000009, title: "task2", latitude: 23.987904829, longitude: -12.9423875, created_by: "4d792d6973ec3248e3000001"&gt; </code></pre> <p>returns what I would expect, but</p> <pre><code>t = Task.where(:created_by =&gt; "4d792d6973ec3248e3000001") =&gt; #&lt;Mongoid::Criteria selector: {:created_by=&gt;BSON::ObjectId('4d792d6973ec3248e3000001')}, options: {}, class: Task, embedded: false&gt; &gt;&gt; t.first =&gt; nil </code></pre> <p>same result with:</p> <pre><code>t = Task.all(:conditions =&gt; {:created_by =&gt; "4d792d6973ec3248e3000001"}) </code></pre> <p>here is the model:</p> <pre><code>class Task include Mongoid::Document field :title field :latitude, :type =&gt; Float field :longitude, :type =&gt; Float field :created_by end </code></pre> <p>what am I doing wrong ?</p> <p>updated example:</p> <pre><code>&gt;&gt; Task.new(:title =&gt; "task8", :created_by =&gt; "4d792d6973ec3248e3000001") =&gt; #&lt;Task _id: 4d81037973ec32cc22000003, latitude: nil, longitude: nil, title: "task8", created_by: "4d792d6973ec3248e3000001"&gt; &gt;&gt; t = Task.all(:conditions =&gt; {:created_by =&gt; "4d792d6973ec3248e3000001"}) =&gt; #&lt;Mongoid::Criteria selector: {:created_by=&gt;BSON::ObjectId('4d792d6973ec3248e3000001')}, options: {}, class: Task, embedded: false&gt; &gt;&gt; t.first =&gt; nil </code></pre> <p>do I need to specifically define created_by as :type => String ?</p>
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    1. COwhats the question?
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    2. COIm trying to perform a query based on the created_by field. Not sure what im doing wrong.
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    3. COYou're probably fighting an issue with ObjectIds and matching. What do the mongoid docs say about matching ObjectIds?
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