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PODrilling Down the Data ColdFusion
 

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  1. PODrilling Down the Data ColdFusion
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    <p>I am having trouble with drilling down some data, this is the table structure</p> <p><strong>Products Table</strong> </p> <p>uid_product (unique id)</p> <p>txt_prod_name (product name)</p> <p>Table Name: tbl_products</p> <p><strong>Product Features</strong></p> <p>uid_feature(unique id)</p> <p>txt_feature_name(feature name)Table Name: tbl_features</p> <p><strong>Assigned Product Features</strong></p> <p>uid_prodf (unique id)</p> <p>uid_prodf_prodid (foreign key to uid_product)</p> <p>uid_prodf_featid(foreign key to the uid_features)</p> <p>Table Name: tbl_prod_features</p> <p>One product can have many features hence the use of the tbl_prod_features table. </p> <p>I have created the following query, to obtain the results;</p> <pre><code>&lt;cfquery name="getFeatureProducts" datasource="#application.dsn#"&gt; SELECT uid_product, txt_prod_name FROM dbo.tbl_products WHERE uid_product IN (SELECT (dbo.tbl_product_features.uid_prodf_prodid) FROM dbo.tbl_product_features WHERE uid_prodf_featid IN (&lt;cfqueryparam cfsqltype="CF_SQL_INTEGER" value="#arguments.uid_features#" list="yes"&gt;)) ORDER BY dbo.tbl_products.txt_prod_name &lt;/cfquery&gt; </code></pre> <p>This works great for getting all products associated to the features selected by the end user. However what I need to achieve is the following,</p> <p>If a user selects;</p> <p><strong>Feature A</strong> = 5 products displayed (3 out of 5 of these products contains Feature B)</p> <p>If the user then selects;</p> <p><strong>Feature B</strong> = 3 Products</p> <p>Currently with the query using the in operator it will still retrieve 5 products.</p> <p>My first thoughts was to create a dynamic where statement adding the AND operator, however uid_prodf_featid = 5 AND uid_prodf_featid = 6 will always produce 0 results.</p> <p>My second idea was to build an array of product id’s from the first drill down i.e. get the id’s of the first 5 products, and pass them in to the query and then drill down the features, this works and the correct results are obtained. </p> <p>However the user has the ability to remove features (and in any order), so I would somehow need to keep track of the products id’s as and when they were added and removed.</p> <p>I am sure I am overcomplicating this, but any help would be appreciated.</p>
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    1. USMatt Busche
    1. USJason Congerton
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