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<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright (c) 2008 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\grid;
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use yii\base\Model;
use yii\data\ActiveDataProvider;
use yii\db\ActiveQuery;
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Inflector;
/**
* @author Qiang Xue <qiang.xue@gmail.com>
* @since 2.0
*/
class DataColumn extends Column
{
/**
* @var string the attribute name associated with this column. When neither [[content]] nor [[value]]
* is specified, the value of the specified attribute will be retrieved from each data model and displayed.
*
* Also, if [[header]] is not specified, the label associated with the attribute will be displayed.
*/
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public $attribute;
/**
* @var string label to be displayed in the [[header|header cell]] and also to be used as the sorting
* link label when sorting is enabled for this column.
* If it is not set and the models provided by the GridViews data provider are instances
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* of [[yii\db\ActiveRecord]], the label will be determined using [[yii\db\ActiveRecord::getAttributeLabel()]].
* Otherwise [[yii\helpers\Inflector::camel2words()]] will be used to get a label.
*/
public $label;
/**
* @var \Closure an anonymous function that returns the value to be displayed for every data model.
* If this is not set, `$model[$attribute]` will be used to obtain the value.
*/
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public $value;
/**
* @var string in which format should the value of each data model be displayed as (e.g. "text", "html").
* Supported formats are determined by the [[GridView::formatter|formatter]] used by the [[GridView]].
* Default format is "text" which will format the value as an HTML-encoded plain text when
* [[\yii\base\Formatter]] or [[\yii\i18n\Formatter]] is used.
*/
public $format = 'text';
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/**
* @var boolean whether to allow sorting by this column. If true and [[attribute]] is found in
* the sort definition of [[GridView::dataProvider]], then the header cell of this column
* will contain a link that may trigger the sorting when being clicked.
*/
public $enableSorting = true;
/**
* @var array the HTML attributes for the link tag in the header cell
* generated by [[Sort::link]] when sorting is enabled for this column.
*/
public $sortLinkOptions = array();
/**
* @var string|array|boolean the HTML code representing a filter input (e.g. a text field, a dropdown list)
* that is used for this data column. This property is effective only when [[GridView::filterModel]] is set.
*
* - If this property is not set, a text field will be generated as the filter input;
* - If this property is an array, a dropdown list will be generated that uses this property value as
* the list options.
* - If you don't want a filter for this data column, set this value to be false.
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*/
public $filter;
/**
* @var array the HTML attributes for the filter input fields. This property is used in combination with
* the [[filter]] property. When [[filter]] is not set or is an array, this property will be used to
* render the HTML attributes for the generated filter input fields.
*/
public $filterInputOptions = array('class' => 'form-control');
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protected function renderHeaderCellContent()
{
if ($this->header !== null || $this->label === null && $this->attribute === null) {
return parent::renderHeaderCellContent();
}
$provider = $this->grid->dataProvider;
if ($this->label === null) {
if ($provider instanceof ActiveDataProvider && $provider->query instanceof ActiveQuery) {
/** @var Model $model */
$model = new $provider->query->modelClass;
$label = $model->getAttributeLabel($this->attribute);
} else {
$models = $provider->getModels();
if (($model = reset($models)) instanceof Model) {
/** @var Model $model */
$label = $model->getAttributeLabel($this->attribute);
} else {
$label = Inflector::camel2words($this->attribute);
}
}
} else {
$label = $this->label;
}
if ($this->attribute !== null && $this->enableSorting &&
($sort = $provider->getSort()) !== false && $sort->hasAttribute($this->attribute)) {
return $sort->link($this->attribute, array_merge($this->sortLinkOptions, array('label' => Html::encode($label))));
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} else {
return Html::encode($label);
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}
}
protected function renderFilterCellContent()
{
if (is_string($this->filter)) {
return $this->filter;
} elseif ($this->filter !== false && $this->grid->filterModel instanceof Model && $this->attribute !== null) {
if (is_array($this->filter)) {
$options = array_merge(array('prompt' => ''), $this->filterInputOptions);
return Html::activeDropDownList($this->grid->filterModel, $this->attribute, $this->filter, $options);
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} else {
return Html::activeTextInput($this->grid->filterModel, $this->attribute, $this->filterInputOptions);
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}
} else {
return parent::renderFilterCellContent();
}
}
protected function renderDataCellContent($model, $index)
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{
if ($this->value !== null) {
$value = call_user_func($this->value, $model, $index, $this);
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} elseif ($this->content === null && $this->attribute !== null) {
$value = ArrayHelper::getValue($model, $this->attribute);
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} else {
return parent::renderDataCellContent($model, $index);
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}
return $this->grid->formatter->format($value, $this->format);
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}
}