| public col ( integer $i, array $params = [] ) : string | ||
| $i | integer | the index of the grid column (the first column in the grid will be zero indexed). Note a column's index is to be considered, even if the `visible` property is set to false. |
| $params | array | which will contain these keys: - `model`: _yii\base\Model`, the data model being rendered - `key`: _string|object_, the key associated with the data model - `index`: _integer_, the zero-based index of the data item among the item array returned by [[GridView::dataProvider]]. - widget: _FormulaColumn_, the current column widget instance |
| Résultat | string | |
public function col($i, $params = [])
{
if (empty($this->grid->columns[$i])) {
throw new InvalidConfigException("Invalid column index {$i} used in FormulaColumn.");
}
if (!isset($this->value) || !$this->value instanceof \Closure) {
throw new InvalidConfigException("The 'value' must be set and defined as a `Closure` function for a FormulaColumn.");
}
/** @var DataColumn $col */
$col = $this->grid->columns[$i];
if ($col === $this) {
throw new InvalidConfigException("Self-referencing FormulaColumn at column {$i}.");
}
$model = null;
$key = null;
$index = null;
extract($params);
if ($index == self::SUMMARY) {
return $col->getPageSummaryCellContent();
} elseif ($index == self::FOOTER) {
return $col->getFooterCellContent();
} else {
return $col->getDataCellValue($model, $key, $index);
}
}