[TurboGears] Re: anyone ever successfully sent data to server with MochiKit's doXHR function?

[Christopher Arndt]

[EMAIL PROTECTED] schrieb:
> Anyone ever successfully sent data to server with MochiKit's doXHR
> function?

I have. See example below (uses the RUZEE events JS library
<http://www.ruzee.com/blog/ruzeeevents/>, but this is of no consequence
for the question at hand).


/*
 * Show article preview received via AJAJ.
 */
function show_article_preview(res) {
    logDebug('show_article_preview called');
    res = evalJSONRequest(res);
    if (res['error']) {
        update_article_preview(P({'class': 'errmsg'}, res['error']));
    }
    else {
        var heading = H2({}, $('articleform_title').value);
        var container = DIV({});
        container.innerHTML = res['preview'];
        /* the following method calls basically just
        swaps the content of a div with the preview */
        update_article_preview([heading, container]);
    }
}

/*
 * Show error message when no article preview is available.
 */
function no_preview(err) {
    update_article_preview(P({'class': 'errmsg'}, 'No preview available'));
}

/*
 * Load article preview via AJAJ.
 */
function load_article_preview(e) {
    logDebug('load_article_preview called');
    var text = $('articleform_text').value;
    /* do a POST XmlHttpRequest with url-encoded comment text */
    var d = doXHR('/preview', {
      'method': 'POST',
      'sendContent': 'text=' + escape(text) + '&format=rest',
      headers: {"Content-Type": "application/x-www-form-urlencoded"}
    });
    d.addCallbacks(show_article_preview, no_preview);
}

/*
 * Add a 'Preview' link/button to the comment form
 */
function add_previewaction() {
    var submit = $('submit_article');
    if (submit) {
        var button = INPUT({
          'id': 'preview',
          'type': 'button',
          'class': 'submitbutton',
          'value': 'Preview',
          'accesskey': 'p',
          'title': 'Show article preview [p]'
        });
        submit.parentNode.appendChild(button);
        connect(button, 'onclick', load_article_preview);
    }
}

/*
 * Add callbacks on page load
 */
RUZEE.Events.add(window, 'domload',
    function() {
        var submit = $('submit_entry');
        add_previewaction(submit);
    }
);

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