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POUsing PHP and MongoDB sorting results based on key AND value?
 

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  1. POUsing PHP and MongoDB sorting results based on key AND value?
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    <p>For my case i am using MongoDB to store a whole bunch of products from 50 countries, entry in DB looks something like this:</p> <pre><code>{ _id: xxxxxxxxxxxxxxx, country: 'au', title: 'Equipment X', price: 1000, }, { _id: xxxxxxxxxxxxxxy, country: 'us', title: 'Equipment Y', price: 1000, }, ... ... </code></pre> <p>I would like to know if it is at all possible to query all products and sort by country from <b>au</b> FIRST, then the rest of the products after that. The simple MongoDB sort seems to only sort by key. If it is possible, does it involve map/reduce?</p> <p><strong>Edit: A more detailed example</strong></p> <p>Documents in collection:</p> <pre><code>{ country:'cn', title:'Equipment A', price:'100'}, { country:'au', title:'Equipment B', price:'100'}, { country:'za', title:'Equipment C', price:'100'}, { country:'us', title:'Equipment D', price:'100'}, { country:'nz', title:'Equipment E', price:'100'}, { country:'it', title:'Equipment F', price:'100'}, { country:'nz', title:'Equipment G', price:'100'}, { country:'au', title:'Equipment H', price:'100'}, </code></pre> <p>I am looking for a sort that will return products from <strong>nz</strong> to be at the top and then follow by all other products, like this:</p> <pre><code>{ country:'nz', title:'Equipment E', price:'100'}, { country:'nz', title:'Equipment G', price:'100'}, { country:'au', title:'Equipment B', price:'100'}, { country:'au', title:'Equipment H', price:'100'}, { country:'cn', title:'Equipment A', price:'100'}, { country:'it', title:'Equipment F', price:'100'}, { country:'us', title:'Equipment D', price:'100'}, { country:'za', title:'Equipment C', price:'100'}, </code></pre>
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