DataColumn.php 8.34 KB
Newer Older
Qiang Xue committed
1 2 3 4 5 6 7
<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

8 9
namespace yii\grid;

Qiang Xue committed
10 11
use yii\base\Model;
use yii\data\ActiveDataProvider;
12
use yii\db\ActiveQueryInterface;
Qiang Xue committed
13 14 15 16 17
use yii\helpers\ArrayHelper;
use yii\helpers\Html;
use yii\helpers\Inflector;

/**
18 19
 * DataColumn is the default column type for the [[GridView]] widget.
 *
20 21 22 23 24 25 26 27 28 29 30
 * It is used to show data columns and allows [[enableSorting|sorting]] and [[filter|filtering]] them.
 *
 * A simple data column definition refers to an attribute in the data model of the
 * GridView's data provider. The name of the attribute is specified by [[attribute]].
 *
 * By setting [[value]] and [[label]], the header and cell content can be customized.
 *
 * A data column differentiates between the [[getDataCellValue|data cell value]] and the
 * [[renderDataCellContent|data cell content]]. The cell value is an un-formatted value that
 * may be used for calculation, while the actual cell content is a [[format|formatted]] version of that
 * value which may contain HTML markup.
31
 *
Qiang Xue committed
32 33 34 35 36
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since 2.0
 */
class DataColumn extends Column
{
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
    /**
     * @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 [[label]] is not specified, the label associated with the attribute will be displayed.
     */
    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
     * 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 $label;
    /**
53
     * @var string|\Closure an anonymous function that returns the value to be displayed for every data model.
54
     * The signature of this function is `function ($model, $key, $index, $column)`.
55
     * If this is not set, `$model[$attribute]` will be used to obtain the value.
56 57 58 59
     *
     * You may also set this property to a string representing the attribute name to be displayed in this column.
     * This can be used when the attribute to be displayed is different from the [[attribute]] that is used for
     * sorting and filtering.
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
     */
    public $value;
    /**
     * @var string|array in which format should the value of each data model be displayed as (e.g. "raw", "text", "html",
     * ['date', 'Y-m-d']). 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::format()]] or [[\yii\i18n\Formatter::format()]] is used.
     */
    public $format = 'text';
    /**
     * @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 [[\yii\data\Sort::link]] when sorting is enabled for this column.
     * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
     */
    public $sortLinkOptions = [];
    /**
     * @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.
     */
    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.
     * @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
     */
    public $filterInputOptions = ['class' => 'form-control', 'id' => null];
Qiang Xue committed
98 99


100 101 102 103 104 105 106 107
    /**
     * @inheritdoc
     */
    protected function renderHeaderCellContent()
    {
        if ($this->header !== null || $this->label === null && $this->attribute === null) {
            return parent::renderHeaderCellContent();
        }
108

109
        $provider = $this->grid->dataProvider;
110

111 112
        if ($this->label === null) {
            if ($provider instanceof ActiveDataProvider && $provider->query instanceof ActiveQueryInterface) {
113
                /* @var $model Model */
114 115 116 117 118
                $model = new $provider->query->modelClass;
                $label = $model->getAttributeLabel($this->attribute);
            } else {
                $models = $provider->getModels();
                if (($model = reset($models)) instanceof Model) {
119
                    /* @var $model Model */
120 121 122 123 124 125 126 127
                    $label = $model->getAttributeLabel($this->attribute);
                } else {
                    $label = Inflector::camel2words($this->attribute);
                }
            }
        } else {
            $label = $this->label;
        }
128

129 130 131 132 133 134 135
        if ($this->attribute !== null && $this->enableSorting &&
            ($sort = $provider->getSort()) !== false && $sort->hasAttribute($this->attribute)) {
            return $sort->link($this->attribute, array_merge($this->sortLinkOptions, ['label' => Html::encode($label)]));
        } else {
            return Html::encode($label);
        }
    }
136

137 138 139 140 141 142 143
    /**
     * @inheritdoc
     */
    protected function renderFilterCellContent()
    {
        if (is_string($this->filter)) {
            return $this->filter;
144 145 146 147 148 149 150 151 152 153
        }

        $model = $this->grid->filterModel;

        if ($this->filter !== false && $model instanceof Model && $this->attribute !== null && $model->isAttributeActive($this->attribute)) {
            if ($model->hasErrors($this->attribute)) {
                Html::addCssClass($this->filterOptions, 'has-error');
                $error = Html::error($model, $this->attribute, $this->grid->filterErrorOptions);
            } else {
                $error = '';
154
            }
155 156
            if (is_array($this->filter)) {
                $options = array_merge(['prompt' => ''], $this->filterInputOptions);
157
                return Html::activeDropDownList($model, $this->attribute, $this->filter, $options) . ' ' . $error;
158
            } else {
159
                return Html::activeTextInput($model, $this->attribute, $this->filterInputOptions) . ' ' . $error;
160 161 162 163 164
            }
        } else {
            return parent::renderFilterCellContent();
        }
    }
Qiang Xue committed
165

166
    /**
167 168 169 170 171
     * Returns the data cell value.
     * @param mixed $model the data model
     * @param mixed $key the key associated with the data model
     * @param integer $index the zero-based index of the data model among the models array returned by [[GridView::dataProvider]].
     * @return string the data cell value
172
     */
173
    public function getDataCellValue($model, $key, $index)
174 175 176
    {
        if ($this->value !== null) {
            if (is_string($this->value)) {
177
                return ArrayHelper::getValue($model, $this->value);
178
            } else {
MDMunir committed
179
                return call_user_func($this->value, $model, $key, $index, $this);
180
            }
181 182
        } elseif ($this->attribute !== null) {
            return ArrayHelper::getValue($model, $this->attribute);
183
        }
184
        return null;
185 186 187 188 189 190 191
    }

    /**
     * @inheritdoc
     */
    protected function renderDataCellContent($model, $key, $index)
    {
192 193 194 195 196
        if ($this->content === null) {
            return $this->grid->formatter->format($this->getDataCellValue($model, $key, $index), $this->format);
        } else {
            return parent::renderDataCellContent($model, $key, $index);
        }
197
    }
Qiang Xue committed
198
}