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POHow does AJAX handle multiples instances of a variable?
 

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  1. POHow does AJAX handle multiples instances of a variable?
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    <p>I am currently editing a WordPress plugin, which allows you to filter posts by category, once a category is selected, the posts for that caregory are displayed as a checklist on the widget, the user can select the posts they wish to display in their sidebar/widget area of the theme.</p> <p>I have taken the widget to the point that the user can select their post, the widget allows a single post to be selected, however if more than one is selected and the save button is pressed, the form returns only the last slected post.</p> <p>After some searching, I have found the problem to be on the form return. It is either to do with the update, or the way AJAX handles multiple instances of a variable.</p> <p>the information posted to the server is as follows:</p> <pre><code>action save-widget add_new id_base single_post_super_widget multi_number savewidgets 9bc3d79f1c sidebar lcp-sb widget-height 200 widget-id single_post_super_widget-2 widget-single_post_super_widget[2][object_to_use] 5005 widget-single_post_super_widget[2][object_to_use] 4892 widget-single_post_super_widget[2][object_to_use] 4607 widget-single_post_super_widget[2][object_type] 72 widget-single_post_super_widget[2][paged] 1 widget-single_post_super_widget[2][tab] all widget-single_post_super_widget[2][title_override] widget-width 400 widget_number 2 </code></pre> <p>Where <code>object_to_use</code> is the post(s) being selected.</p> <p>the information being sent is defined here:</p> <pre><code>var theArgs = { action: jQuery('input.widget_class:hidden', widgetDiv).first().val() + '-get-metabox', widget: widgetDivId, number: widgetNumber, blog_id: jQuery(widgetInputBase + 'blog_id').val(), object_type: jQuery(widgetInputBase + 'object_type').val(), tab: currentTab, paged: currentPage, object_to_use: jQuery('input[type=checkbox][name$="[object_to_use]['+currentTab+']"]:checked', widgetDiv).first().val(), title_override: jQuery(widgetInputBase + 'title_override').val(), excerpt_override: jQuery(widgetInputBase + 'excerpt_override').val(), searched: ('search' == currentTab) ? jQuery('input.quick-search', widgetDiv).first().val() : '' }; </code></pre> <p>and the jQuery.post action:</p> <pre><code>jQuery.post( ajaxurl, theArgs, function( r ) { jQuery('.ajax-feedback').css('visibility', 'hidden'); if ( r &amp;&amp; r.length &gt; 2 ) { jQuery('div.widget-content', widgetDiv).html(r); } } ); </code></pre> <p>In relation to the question, <code>widget-single_post_super_widget[2][object_to_use]</code> is being posted multiple times, how does AJAX handle this? Does each post/variable have to be unique?</p>
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    1. USTerry Barriff
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      1. POHow does AJAX handle multiples instances of a variable?
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    1. COWhen sending an array in the post its name should be sth like "name[]" e.g `var postData={'ids[]':idArray}`. Check this for further details `http://stackoverflow.com/questions/299610/how-can-i-send-an-array-to-php-through-ajax`
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    2. CO@sakhunzai `object_to_use` has been renamed to contain the square brackets and it all seems to be working now. Thank you
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      1. USTerry Barriff
 

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