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POHow to make turnover on Mysql database records
 

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  1. POHow to make turnover on Mysql database records
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    <p>I am a website developer and I need help for an analyse: My (future) website is more or less a villa directory. People can add their villas there. Each villa will be stored in database.</p> <p>I need to show 15 villas per page but I want a "turn over" (not sure it's the correct word in English) of the villas: every hour the villa that appears first on first page becomes the last villa of last page (so every villa rank increase of 1 except the first one that become the last). I want every villa to have the same chance (more or less) to appear on the first page. I don’t want a totally random system.</p> <p>I need help on how to make a simple system that would not take a lot of resources (should be working with a few millions of records).</p> <p>Note: I don’t want to use the ID of the villa because if a person posts 3 different villas at the same time, they will be all shown next to each other.</p> <p><strong>My proposition:</strong> I create a field (INTEGER) called “random_order” for each villa and I put a random number between 0 and Max(INTEGER) and I create an Index on the column “random_order”. Then to get the records in the order I want, I store (dunno where yet) a variable that point to a record in the index. Then every hours, I increase by 1 this variable (with a modulo). I’m not an expert on indexes so I’m not really sure if it’s possible to do it and how to do it. I don’t know if there is a better way to do it as well…</p> <p>Could you please tell me if this is correct or if you have better ideas?</p> <p>Thank you</p>
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    1. COim just wondering why if you dont want a random system, you are creating a field called 'random order' ? what about a second index for display that gets rid of the problem of someone putting 3 things at a time. its better to put actual code here i think than theoretical stuff, but im no veteran. good luck with it.
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    2. COWell I post my analyse of it so if my idea is stupid (and it seems to be the case as you propose me something better) then I don't spend time on something stupid... But if you prefer code, it would help me al lot if you could tell me how to make a second index that could fit my needs. Tks
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    3. COHey cigar, your comment is back! Please tell me more about your solution. I don't understand how to make an index with random positions. tks
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