function image_tag($file, $options = array())
{
if (empty($file)) {
return;
}
$out = "<img src=\"" . media_path($file) . "\"";
if (is_string($options)) {
$options = array('alt' => $options);
}
if ($options === false) {
$options = array('alt' => false);
}
if (!is_array($options)) {
$options = array();
}
if (array_key_exists("alt", $options) && $options['alt'] === false) {
$pi = pathinfo($file);
$options['alt'] = human_name(str_replace('.' . $pi['extension'], '', $pi['basename']));
}
if (!array_key_exists("alt", $options)) {
$out .= ' alt=""';
}
foreach ($options as $k => $v) {
if ($k == 'size') {
$v = explode('x', $v);
$out .= ' width="' . $v[0] . '" height="' . $v[1] . '" ';
} else {
$out .= " {$k}=\"{$v}\" ";
}
}
$out .= " />\n";
return $out;
}
protected function test_image_of($prop, $msg)
{
if (!array_key_exists($prop, $this->data)) {
return true;
}
if ($this->data[$prop] instanceof UploadedFile) {
if ($this->data[$prop]->is_image()) {
return true;
} else {
$this->add_error(human_name($prop), $msg, VALIDATION_IMAGE);
return false;
}
} else {
// Allow null
return true;
}
}
