/**
* Creates column objects and initializes them.
*/
protected function initColumns()
{
if ($this->_columns) {
foreach ($this->_columns as $name => $col) {
if (is_string($col)) {
$column = $this->createDataColumn($col);
} else {
$column = Yii::createObject(array_merge($col, ['class' => empty($col['class']) ? DataColumn::className() : __NAMESPACE__ . '\\' . $col['class'], 'grid' => $this]));
}
if (!$column->visible) {
unset($this->_columns[$i]);
continue;
}
$this->_columns[$i] = $column;
}
}
if ($this->_columns) {
foreach ($this->_columns as $column) {
$column->init();
$filterValue = $this->filter && $column->name && isset($this->filter[$column->name]) ? $this->filter[$column->name] : null;
$this->filterPrepared[$column->name] = $column->prepareFilterValue($filterValue);
}
}
}
