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POMongoDB Modeling / Querying Subset
 

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  1. POMongoDB Modeling / Querying Subset
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    <p>So I'm trying to implement a model for triggering various events that could happen in my rails app.</p> <p>Some sample code of what I want it to do.</p> <pre><code> Action.trigger_on("channel1") </code></pre> <p>The above piece of code would be triggered by:</p> <pre><code> Trigger.trigger("channel1") </code></pre> <p>But then if I only want Action to be triggered for a given set of parameters I can pass a hash</p> <pre><code> Action.trigger_on("channel1", {important: true, is_transfer: true}) </code></pre> <p>The above Action will only be triggered by things on channel1 that are on "channel1" AND also it MUST be <code>important: true</code>, AND it MUST be an <code>is_transfer: true</code>.</p> <p>Hence this will NOT trigger it because it does not have is_transfer:</p> <pre><code> Trigger.trigger("channel1", {important: true}) </code></pre> <p>But this will</p> <pre><code> Trigger.trigger("channel1", {important: true, is_transfer: true}) </code></pre> <p>Right now Trigger is a document with a sub document of "properties" that contains these parameters. How do I find all the triggers that matches a subset of all the parameters? Or perhaps there is a better way to improve on this modeling?</p> <p>The stupid way to do it is to find all Triggers that matches the channel and then iterate through trough them to check to see if the current Trigger has all the desired properties.... </p> <p>EDIT: Also, I guess it is important to note that the triggering of an action is not that time critical.</p>
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    1. PTQuestion
    1. USJonathan Leung
    1. USJonathan Leung
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    1. COAre you planning that some timed event code in your Rails app occasionally looks to see if there are "trigger" documents (and then acts on them)?
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      1. POMongoDB Modeling / Querying Subset
      1. USWiredPrairie
    2. COThe objective is to have things that are triggered by other things happening throughout the code... The execution of a trigger is generally not that time critical.
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      1. POMongoDB Modeling / Querying Subset
      1. USJonathan Leung
 

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