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POis there a better way to write this frankenstein LINQ query that searches for values in a child table and orders them by relevance?
 

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  1. POis there a better way to write this frankenstein LINQ query that searches for values in a child table and orders them by relevance?
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    <p>I have a table of Users and a one to many UserSkills table. I need to be able to search for users based on skills. This query takes a list of desired skills and searches for users who have those skills. I want to sort the users based on the number of desired skills they posses. So if a users only has 1 of 3 desired skills he will be further down the list than the user who has 3 of 3 desired skills.</p> <p>I start with my comma separated list of skill IDs that are being searched for:</p> <pre><code>List&lt;short&gt; searchedSkillsRaw = skills.Value.Split(',').Select(i =&gt; short.Parse(i)).ToList(); </code></pre> <p>I then filter out only the types of users that are searchable:</p> <pre><code>List&lt;User&gt; users = (from u in db.Users where u.Verified == true &amp;&amp; u.Level &gt; 0 &amp;&amp; u.Type == 1 &amp;&amp; (u.UserDetail.City == city.SelectedValue || u.UserDetail.City == null) select u).ToList(); </code></pre> <p>and then comes the crazy part:</p> <pre><code>var fUsers = from u in users select new { u.Id, u.FirstName, u.LastName, u.UserName, UserPhone = u.UserDetail.Phone, UserSkills = (from uskills in u.UserSkills join skillsJoin in configSkills on uskills.SkillId equals skillsJoin.ValueIdInt into tempSkills from skillsJoin in tempSkills.DefaultIfEmpty() where uskills.UserId == u.Id select new { SkillId = uskills.SkillId, SkillName = skillsJoin.Name, SkillNameFound = searchedSkillsRaw.Contains(uskills.SkillId) }), UserSkillsFound = (from uskills in u.UserSkills where uskills.UserId == u.Id &amp;&amp; searchedSkillsRaw.Contains(uskills.SkillId) select uskills.UserId).Count() } into userResults where userResults.UserSkillsFound &gt; 0 orderby userResults.UserSkillsFound descending select userResults; </code></pre> <p>and this works! But it seems super bloated and inefficient to me. Especially the secondary part that counts the number of skills found.</p> <p>Thanks for any advice you can give.</p> <p>--r</p>
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    1. USJon Seigel
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      1. POis there a better way to write this frankenstein LINQ query that searches for values in a child table and orders them by relevance?
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      1. VTUpMod
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