我设法做到这一点的唯一方法是渲染到一个单独的元素并复制这些元素。
例如:
<form id="my-form">
<!-- My controls: -->
<label for="foo">Foo</label>
<input id="foo">
<label for="bar">Bar</label>
<input id="bar">
<!-- I want the schema-based controls to go into this div. -->
<div class="schema-control-container"></div>
</form>
JavaScript(和 jQuery):
var $myForm = $('#my-form');
var $schemaControlContainer = $myForm.find('.schema-control-container');
var mySchema = JSON.parse(mySchemaJson);
var $scratchpad = $('<div id="alpacaScratchpad"></div>').hide().
insertAfter($myForm);
function postRender (control) {
// I actually have multiple forms, so I need to make sure the IDs are unique.
$scratchpad.find('.alpaca-control').each(function (i, alpacaControl) {
alpacaControl.id = $myForm.attr('id') + '-' + alpacaControl.id;
});
$scratchpad.find('.alpaca-control-label').each(
function (i, alpacaControlLabel) {
alpacaControlLabel.htmlFor = $myForm.attr('id') + '-' +
alpacaControlLabel.htmlFor;
});
// Select elements we want to copy. Note that I haven't tried this with any
// particularly complicated JSON schemata, so this may be naïve.
var $goodies = $scratchpad.find('.alpaca-control,.alpaca-control-label');
// Optional: mark schema controls as such, and allow autocompletion.
$goodies.filter('.alpaca-control').addClass('my-schema-datum').
attr('autocomplete', null);
// Remove Alpaca classes and Bootstrap crap. (I hate Bootstrap, but the 'web'
// version of Alpaca doesn't seem to work right now. TODO: Update after
// https://github.com/gitana/alpaca/issues/507 is fixed.)
$goodies.removeClass('alpaca-control').removeClass('alpaca-control-label').
removeClass('form-control').removeClass('control-label');
// Move the goodies to the schema control container, in the form.
$schemaControlContainer.append($goodies);
// Clean up the clutter we don't need.
$scratchpad.empty();
}
// Have Alpaca render the schema into the scratchpad, and then run the function
// we just defined.
$scratchpad.alpaca({ schema: mySchema, postRender: postRender });
我希望找到一个 Alpaca 选项来避免需要执行所有这些操作,但似乎没有。