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POAfter join, cannot filter by attribute qty - getting products from inventory that are in stock
 

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  1. POAfter join, cannot filter by attribute qty - getting products from inventory that are in stock
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    <p>You have been so helpful in the past that I keep coming back searching for help and learning. </p> <p>This time I am trying to get all products that have a quantity greater than 1 and that are in stock (<code>is_in_stock</code> = 1)</p> <pre><code> $products = Mage::getModel('catalog/product')-&gt;getCollection(); //$products-&gt;addAttributeToSelect('*'); //SELECT `e`.*, `stock`.`qty` FROM `catalog_product_entity` AS `e` LEFT JOIN `cataloginventory_stock_item` AS `stock` ON stock.product_id = e.entity_id $products-&gt;getSelect()-&gt;joinLeft( array('stock'=&gt;'cataloginventory_stock_item'), 'stock.product_id = e.entity_id', array('stock.qty', 'stock.is_in_stock') ); </code></pre> <p>This returns <code>qty</code> and <code>is_in_stock</code> columns attached to the products table. You can test it as follows:</p> <pre><code>$products-&gt;getFirstItem()-&gt;getQty(); $products-&gt;getFirstItem()-&gt;getIsInStock(); </code></pre> <p>The issue begins when I try to filter by <code>qty</code> and <code>is_in_stock</code>.</p> <pre><code> $products-&gt;addFieldToFilter(array( array('Qty','gt'=&gt;'0'), array('Is_in_stock','eq'=&gt;'1'), )); </code></pre> <p>This returns - <code>Invalid attribute name</code> never performing filtering. I am guessing it is trying search for <code>e.qty</code> but cannot find it. </p> <p>So, I tried to filter differently:</p> <pre><code>$products-&gt;getSelect()-&gt;where("`qty` &gt; 0"); $products-&gt;getSelect()-&gt;where("`is_in_stock` = 1"); </code></pre> <p>This is not filtering as well even though, if you look at its sql query, (<code>var_dump((string) $products-&gt;getSelect())</code>), and run that query in phpMyAdmin, it works.</p> <p>Alan Storm in <a href="http://alanstorm.com/magento_collections" rel="nofollow noreferrer">his tutorial</a> mentions that 'The database query will not be made until you attempt to access an item in the Collection'. So, I make the $products->getFirstItem() call but it still not executing the query or filtering in another words.</p> <p>What am I doing wrong? Any ideas how to filter by attributes that are joined to the table?</p> <p>Thank you again,</p> <p>Margots </p>
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    1. USJoseph Mastey
    1. USlatvian
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      1. POAfter join, cannot filter by attribute qty - getting products from inventory that are in stock
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      1. VTUpMod
    1. COFor those who are looking for answer, [this](http://stackoverflow.com/questions/10284537/filtering-a-joined-column/15875005#15875005) might help.
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      1. POAfter join, cannot filter by attribute qty - getting products from inventory that are in stock
      1. USkiatng
 

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