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POrails 3 find a value in a params array
 

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  1. POrails 3 find a value in a params array
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    <p>I am using jQuery UI Sortable to sort some rows on my website. </p> <p>Here is my view:</p> <pre><code>&lt;section class="data-list"&gt; &lt;article id="item_&lt;%= item.id %&gt;" class="data sortable"&gt; &lt;!-- stuff goes here --&gt; &lt;/article&gt; &lt;/section&gt; </code></pre> <p>Here is my JS:</p> <pre><code>$('.data-list').sortable({items: '&gt; .data'}).bind('sortupdate', function() { var release = getUrlVars()["id"]; $.ajax({ type: 'POST', data: $(this).sortable("serialize"), url: '/release_items/'+ release +'/prioritize' }); }); </code></pre> <p>This creates a <code>params['item']</code> array that looks like this:</p> <pre><code>["1537", "1536", "1540", "1541", "1542", "1543", "1544", "1545", "1547", "1546"] </code></pre> <p>Here is my controller code:</p> <pre><code>def prioritize @release = Release.find(params[:id]) item = @release.release_items item.each do |i| i.priority = params['item'].index(i.id.to_s).to_i + 1 i.save end end </code></pre> <p>My problem is that i have several <code>release_items</code> that are distinguished by an <code>item_type</code> column. And as it stands now i currently don't have a good way in my controller to filter by item_type in my <code>@release = Release.find(params[:id])</code> line.</p> <p>What i would like to do is make sure in the <code>item.each do |i|</code> loop that the priority is only set IF the item is in the <code>params['item']</code> array. How would i do that? Please let me know if this is not clear enough. Thanks!</p> <p><strong>EDIT 1:</strong></p> <p>For every release, there are <em>n</em> number of release items. THose release items are separated for display on the site by their <code>item_type</code> column (e.g., General, Project, Data, Patch). So on the site there are 4 different lists of items and i want to be able to sort those 4 lists individually. Like i stated above, the <code>params['item']</code> array being passed to the <code>prioritize</code> action in the controller has only the items that need to be sorted, which is want i want.</p> <p>The problem i'm running in to is that the first two lines in the <code>prioritize</code> action will get all of the release items, not just the ones in the <code>params['item']</code> array. The values in the array are the IDs of the release items that need to be sorted. Instead of getting all release items, i want to only get the items that are in the <code>params['item']</code> array. I do have a ReleaseItem model as well i can select from. So, i'm trying to do this: (i know this isn't the correct code, just for clarity sake)</p> <pre><code>item = ReleaseItem.find(conditions: "id in params['item']") </code></pre> <p>Does that make a little more sense? I appreciate your help!</p>
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