tk2/actions/TKAJAXRequest.php5

<?php

class TKAJAXRequest extends TKAction {
    protected $url;
    protected $options = array();
    protected $method = 'get';
    protected $callbackActions;

    protected static $count = 0;

    public function __construct($url, $options, $method = 'get', $callbackActions = array()) {
        parent::__construct();

        $this->url = $url;
        $this->options = $options;
        $this->callbackActions = $callbackActions;

        $GLOBALS['prm']->setOption('prototype', true);
    }

    public function setUrl($url) {
        $this->url = $url;
    }

    public function setOption($opt, $val) {
        $this->options[$opt] = $val;
    }

    public function setMethod($method) {
        $this->method = $method;
    }

    public function addCallbackAction($action) {
        $this->callbackActions[] = $action;
    }

    public function getInvocation() {
        $params = '';
        foreach($this->options as $opt => $val) {
            if($val === true)
                $params .= "'$opt': true,\n";
            else if($val === false)
                $params .= "'$opt': false,\n";
            else
                $params .= "'$opt': '$val',\n";
        }
        $params = rtrim($params, ",\n");

        $actions = '';
        foreach($this->callbackActions as $action) {
            if(is_string($action))
                $actions .= "$action;\n";
            else
                $actions .= $action->getInvocation() . ";\n";
        }

        $i = self::$count++;

        $js = <<<END_JAVASCRIPT
function doAjax$i() {
    new Ajax.Request('$this->url', {
        method: '$this->method',
        parameters: {
            $params
        },

        onSuccess: function(transport) {
            $actions
        },

        onFailure: function() {
            alert('Ajax request failed...');
        }
    });
}

END_JAVASCRIPT;

        $this->addExtraJS('tk2_ajax_req_' . $i, $js);

        return "doAjax$i()";
    }
}

?>

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