diff --git a/scripts/displayTables.js b/scripts/displayTables.js --- a/scripts/displayTables.js +++ b/scripts/displayTables.js @@ -41,6 +41,65 @@ function show_box_change() return false; } +/** + * \brief + * Do an AJAX loading of data with arbitrary error handling. + * + * \param target + * The jQuery object which should be populated with an error message + * or the result of loading. + * \param data + * The data to send as a request. + * \param handler + * A function with the signature handler(target, data) which is called upon + * a successful response. There is a default handler which uses + * .html() to load the data.data.html into target. + * \param error_handler + * A function with the signature handler(target, status_text, data) + * which is called upon an error. The default error_handler will + * store an error message in target, possibly provided by + * data.message if the HTTP request itself was successful but the + * server still claimed there is an error. The third argument, data, + * will be null if the error is at the HTTP level. + */ +function slate_permutate_load(target, data, handler, error_handler) +{ + if (jQuery.type(handler) == 'undefined') + handler = function(target, data) + { + target.html(data.html); + } + + if (jQuery.type(error_handler) == 'undefined') + error_handler = function(target, status_text, data) + { + if (data) + if (data.message) + target.html(data.message); + else + target.html('
Loading registration information...
'); + + /* hmm... why isn't this information just stored in a global JS variable? */ var tab_i = jQuery('#tabs').tabs('option','selected'); var tab_fragment_i = /-([^-]+)$/.exec(jQuery('#the-tabs li:eq(' + tab_i + ') a').attr('href'))[1]; - var currSec = '.syns' + tab_fragment_i; + var tab_course_data_json_selector = '.course-data-' + tab_fragment_i; - var jHtml = jQuery(currSec).html(); - var secs = eval('(' + jHtml + ')'); - var output = '';
-        for( var i in secs ) {
-          output = output + secs[i] + '
';
-        }
-        output = output + '