Ok now I'm documented.
If you use $this->params['data']=$data at your controller, then in the
helper is accessible through $this->params['data']
If you use $this->data at your controller, then in the helper
$this->data
The correct way is to check where is the data. From HtmlHelper:
function tagValue($fieldName) {
$this->setFormTag($fieldName);
if (isset($this->params['data'][$this->model][$this->field])) {
return
h($this->params['data'][$this->model][$this->field]);
} elseif(isset($this->data[$this->model][$this->field])) {
return h($this->data[$this->model][$this->field]);
}
return false;
}
You can use HtmlHelper in your own helper, and doing
$value=$this->Html->tagValue($fieldName) you will get the correct value
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