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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\widgets; |
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use Yii; |
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use yii\base\Arrayable; |
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use yii\i18n\Formatter; |
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use yii\base\InvalidConfigException; |
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use yii\base\Model; |
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use yii\base\Widget; |
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use yii\helpers\ArrayHelper; |
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use yii\helpers\Html; |
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use yii\helpers\Inflector; |
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/** |
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* DetailView displays the detail of a single data [[model]]. |
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* |
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* DetailView is best used for displaying a model in a regular format (e.g. each model attribute |
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* is displayed as a row in a table.) The model can be either an instance of [[Model]] |
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* or an associative array. |
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* |
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* DetailView uses the [[attributes]] property to determines which model attributes |
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* should be displayed and how they should be formatted. |
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* |
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* A typical usage of DetailView is as follows: |
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* |
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* ```php |
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* echo DetailView::widget([ |
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* 'model' => $model, |
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* 'attributes' => [ |
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* 'title', // title attribute (in plain text) |
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* 'description:html', // description attribute in HTML |
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* [ // the owner name of the model |
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* 'label' => 'Owner', |
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* 'value' => $model->owner->name, |
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* ], |
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* 'created_at:datetime', // creation date formatted as datetime |
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* ], |
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* ]); |
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* ``` |
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* |
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* For more details and usage information on DetailView, see the [guide article on data widgets](guide:output-data-widgets). |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class DetailView extends Widget |
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{ |
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/** |
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* @var array|object the data model whose details are to be displayed. This can be a [[Model]] instance, |
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* an associative array, an object that implements [[Arrayable]] interface or simply an object with defined |
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* public accessible non-static properties. |
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*/ |
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public $model; |
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/** |
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* @var array a list of attributes to be displayed in the detail view. Each array element |
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* represents the specification for displaying one particular attribute. |
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* |
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* An attribute can be specified as a string in the format of `attribute`, `attribute:format` or `attribute:format:label`, |
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* where `attribute` refers to the attribute name, and `format` represents the format of the attribute. The `format` |
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* is passed to the [[Formatter::format()]] method to format an attribute value into a displayable text. |
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* Please refer to [[Formatter]] for the supported types. Both `format` and `label` are optional. |
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* They will take default values if absent. |
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* |
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* An attribute can also be specified in terms of an array with the following elements: |
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* |
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* - `attribute`: the attribute name. This is required if either `label` or `value` is not specified. |
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* - `label`: the label associated with the attribute. If this is not specified, it will be generated from the attribute name. |
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* - `value`: the value to be displayed. If this is not specified, it will be retrieved from [[model]] using the attribute name |
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* by calling [[ArrayHelper::getValue()]]. Note that this value will be formatted into a displayable text |
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* according to the `format` option. Since version 2.0.11 it can be defined as closure with the following |
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* parameters: |
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* |
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* ```php |
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* function ($model, $widget) |
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* ``` |
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* |
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* `$model` refers to displayed model and `$widget` is an instance of `DetailView` widget. |
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* |
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* - `format`: the type of the value that determines how the value would be formatted into a displayable text. |
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* Please refer to [[Formatter]] for supported types. |
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* - `visible`: whether the attribute is visible. If set to `false`, the attribute will NOT be displayed. |
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* - `contentOptions`: the HTML attributes to customize value tag. For example: `['class' => 'bg-red']`. |
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* Please refer to [[\yii\helpers\BaseHtml::renderTagAttributes()]] for the supported syntax. |
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* - `captionOptions`: the HTML attributes to customize label tag. For example: `['class' => 'bg-red']`. |
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* Please refer to [[\yii\helpers\BaseHtml::renderTagAttributes()]] for the supported syntax. |
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*/ |
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public $attributes; |
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/** |
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* @var string|callable the template used to render a single attribute. If a string, the token `{label}` |
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* and `{value}` will be replaced with the label and the value of the corresponding attribute. |
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* If a callback (e.g. an anonymous function), the signature must be as follows: |
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* |
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* ```php |
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* function ($attribute, $index, $widget) |
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* ``` |
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* |
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* where `$attribute` refer to the specification of the attribute being rendered, `$index` is the zero-based |
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* index of the attribute in the [[attributes]] array, and `$widget` refers to this widget instance. |
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* |
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* Since Version 2.0.10, the tokens `{captionOptions}` and `{contentOptions}` are available, which will represent |
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* HTML attributes of HTML container elements for the label and value. |
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*/ |
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public $template = '<tr><th{captionOptions}>{label}</th><td{contentOptions}>{value}</td></tr>'; |
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/** |
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* @var array the HTML attributes for the container tag of this widget. The `tag` option specifies |
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* what container tag should be used. It defaults to `table` if not set. |
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* @see \yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered. |
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*/ |
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public $options = ['class' => 'table table-striped table-bordered detail-view']; |
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/** |
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* @var array|Formatter the formatter used to format model attribute values into displayable texts. |
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* This can be either an instance of [[Formatter]] or an configuration array for creating the [[Formatter]] |
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* instance. If this property is not set, the `formatter` application component will be used. |
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*/ |
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public $formatter; |
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/** |
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* Initializes the detail view. |
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* This method will initialize required property values. |
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*/ |
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public function init() |
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{ |
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if ($this->model === null) { |
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throw new InvalidConfigException('Please specify the "model" property.'); |
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} |
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if ($this->formatter === null) { |
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$this->formatter = Yii::$app->getFormatter(); |
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} elseif (is_array($this->formatter)) { |
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$this->formatter = Yii::createObject($this->formatter); |
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} |
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if (!$this->formatter instanceof Formatter) { |
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throw new InvalidConfigException('The "formatter" property must be either a Format object or a configuration array.'); |
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} |
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$this->normalizeAttributes(); |
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if (!isset($this->options['id'])) { |
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$this->options['id'] = $this->getId(); |
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} |
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} |
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/** |
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* Renders the detail view. |
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* This is the main entry of the whole detail view rendering. |
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*/ |
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public function run() |
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{ |
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$rows = []; |
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$i = 0; |
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foreach ($this->attributes as $attribute) { |
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$rows[] = $this->renderAttribute($attribute, $i++); |
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} |
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$options = $this->options; |
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$tag = ArrayHelper::remove($options, 'tag', 'table'); |
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echo Html::tag($tag, implode("\n", $rows), $options); |
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} |
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/** |
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* Renders a single attribute. |
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* @param array $attribute the specification of the attribute to be rendered. |
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* @param int $index the zero-based index of the attribute in the [[attributes]] array |
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* @return string the rendering result |
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*/ |
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protected function renderAttribute($attribute, $index) |
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{ |
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if (is_string($this->template)) { |
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$captionOptions = Html::renderTagAttributes(ArrayHelper::getValue($attribute, 'captionOptions', [])); |
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$contentOptions = Html::renderTagAttributes(ArrayHelper::getValue($attribute, 'contentOptions', [])); |
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return strtr($this->template, [ |
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'{label}' => $attribute['label'], |
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'{value}' => $this->formatter->format($attribute['value'], $attribute['format']), |
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'{captionOptions}' => $captionOptions, |
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'{contentOptions}' => $contentOptions, |
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]); |
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} else { |
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return call_user_func($this->template, $attribute, $index, $this); |
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} |
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} |
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/** |
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* Normalizes the attribute specifications. |
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* @throws InvalidConfigException |
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*/ |
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protected function normalizeAttributes() |
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{ |
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if ($this->attributes === null) { |
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if ($this->model instanceof Model) { |
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$this->attributes = $this->model->attributes(); |
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} elseif (is_object($this->model)) { |
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$this->attributes = $this->model instanceof Arrayable ? array_keys($this->model->toArray()) : array_keys(get_object_vars($this->model)); |
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} elseif (is_array($this->model)) { |
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$this->attributes = array_keys($this->model); |
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} else { |
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throw new InvalidConfigException('The "model" property must be either an array or an object.'); |
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} |
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sort($this->attributes); |
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} |
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foreach ($this->attributes as $i => $attribute) { |
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if (is_string($attribute)) { |
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if (!preg_match('/^([^:]+)(:(\w*))?(:(.*))?$/', $attribute, $matches)) { |
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throw new InvalidConfigException('The attribute must be specified in the format of "attribute", "attribute:format" or "attribute:format:label"'); |
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} |
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$attribute = [ |
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'attribute' => $matches[1], |
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'format' => isset($matches[3]) ? $matches[3] : 'text', |
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'label' => isset($matches[5]) ? $matches[5] : null, |
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]; |
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} |
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if (!is_array($attribute)) { |
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throw new InvalidConfigException('The attribute configuration must be an array.'); |
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} |
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if (isset($attribute['visible']) && !$attribute['visible']) { |
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unset($this->attributes[$i]); |
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continue; |
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} |
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if (!isset($attribute['format'])) { |
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$attribute['format'] = 'text'; |
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} |
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if (isset($attribute['attribute'])) { |
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$attributeName = $attribute['attribute']; |
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if (!isset($attribute['label'])) { |
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$attribute['label'] = $this->model instanceof Model ? $this->model->getAttributeLabel($attributeName) : Inflector::camel2words($attributeName, true); |
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} |
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if (!array_key_exists('value', $attribute)) { |
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$attribute['value'] = ArrayHelper::getValue($this->model, $attributeName); |
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} |
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} elseif (!isset($attribute['label']) || !array_key_exists('value', $attribute)) { |
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throw new InvalidConfigException('The attribute configuration requires the "attribute" element to determine the value and display label.'); |
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} |
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if ($attribute['value'] instanceof \Closure) { |
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$attribute['value'] = call_user_func($attribute['value'], $this->model, $this); |
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} |
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$this->attributes[$i] = $attribute; |
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} |
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} |
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} |
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rob006 /
yii2-dev
