How can i use $data->id in the checkBoxHtmlOptions yii - php

Question

I am using yii cgridview and i want to add alt in the checkboxes. I am successfull to add this but i want to add $data->rem_type i mean variable in this . here is the code i have tried
array(
'name' => 'check',
'id' => 'selectedIds',
'value' => '$data->rem_id',
'class' => 'CCheckBoxColumn',
'selectableRows' => '100',
'checkBoxHtmlOptions'=>array(
'alt'=>'$data->rem_type'),
),
but it producing the html like this
<input alt="{$data->rem_type}" value="12" id="selectedIds_0" type="checkbox" name="selectedIds[]">
If i removed the quotes (i.e 'alt'=>$data->rem_type)) it show me the error Undefined variable: data
can anybody help me ??

Answer 1

Ok, so I haven't tested this but I think you can do it like this:
extend the CCheckBoxColumn to CheckBoxColumn and overwrite the getDataCellContent function:
class CheckBoxColumn extends CCheckBoxColumn {
public function getDataCellContent($row) {
$data = $this->grid->dataProvider->data[$row];
if ($this->value !== null)
$value = $this->evaluateExpression($this->value, array('data' => $data, 'row' => $row));
elseif ($this->name !== null)
$value = CHtml::value($data, $this->name);
else
$value = $this->grid->dataProvider->keys[$row];
$checked = false;
if ($this->checked !== null)
$checked = $this->evaluateExpression($this->checked, array('data' => $data, 'row' => $row));
$options = $this->checkBoxHtmlOptions;
if ($this->disabled !== null)
$options['disabled'] = $this->evaluateExpression($this->disabled, array('data' => $data, 'row' => $row));
if (array_key_exists("alt", $options)) { //checks if you have set an alt
$options['alt'] = $this->evaluateExpression($options['alt'], array('data' => $data, 'row' => $row)); //if you have it will evaluate the expression
}
$name = $options['name'];
unset($options['name']);
$options['value'] = $value;
$options['id'] = $this->id . '_' . $row;
return CHtml::checkBox($name, $checked, $options);
}
}
I have copied most of the code from the original function
And added this part:
if (array_key_exists("alt", $options)) { //checks if you have set an alt
$options['alt'] = $this->evaluateExpression($options['alt'], array('data' =>data, 'row' => $row)); //if you have it will evaluate the expression
}
There is probably a way to do this better, i.e. not copy the code but I'll let you to this.
Save this in your components folder, include it in your config.php.
And use this class in your widget:
array(
'name' => 'check',
'id' => 'selectedIds',
'value' => '$data->rem_id',
'class' => 'CheckBoxColumn',// <-- instead of CCheckBoxColumn
'selectableRows' => '100',
'checkBoxHtmlOptions'=>array(
'alt'=>'$data->rem_type'),
),
Let me know if it works!