Created
October 2, 2012 14:22
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Dynamic Rails Form
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// -- This method adds a field to the form: | |
var addField = function(target){ | |
// -- get handle on relevant fieldset container and clone it: | |
var fieldset = target.parent().parent().find('div.item-fields').last(); | |
var new_fieldset = fieldset.clone(); | |
// -- Add flag to show that field was dynamically built by the front end | |
// -- and show fieldset if the original was hidden: | |
new_fieldset.addClass("new-dynamic-field").show(); | |
new_fieldset.find("input.placeholder-activated").removeClass("placeholder-activated"); | |
new_fieldset.find("span.forced-placeholder").remove(); | |
new_fieldset.find("input.email-activated").removeClass("email-activated"); | |
// -- Clear out inputs: | |
new_fieldset.find('input').val(''); | |
// -- Update id and name attributes: | |
var timestamp = (new Date).valueOf(); | |
var child, child_id, child_name; | |
var children_needing_id_change = new_fieldset.find("li, input, select"); | |
for(var i=0; i<children_needing_id_change.length; i++){ | |
child = $(children_needing_id_change[i]); | |
child_id = child.attr('id') || ""; | |
child_name = child.attr('name') || ""; | |
if(child_id.length > 0){ | |
child_id = child_id.replace(/attributes_[0-9]*/, "attributes_"+timestamp); | |
child.attr('id', child_id); | |
} | |
if(child_name.length > 0){ | |
child_name = child_name.replace(/\[[0-9]*\]/, "["+timestamp+"]"); | |
child.attr('name', child_name); | |
} | |
} | |
// -- Drop new fieldset back into the dom: | |
fieldset.after(new_fieldset); | |
// -- Enable placeholder/email validation for the new elements: | |
enable_placeholder_text_for_inputs(); | |
enable_email_inputs(); | |
}; |
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