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213 lines
7.7 KiB
PHP
213 lines
7.7 KiB
PHP
<?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\base\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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* ~~~
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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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* ],
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* ]);
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* ~~~
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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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 either a [[Model]] instance
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* or an associative array.
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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 "Name" or "Name:Format", where "Name" refers to
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* the attribute name, and "Format" represents the format of the attribute. The "Format" is passed to the [[Formatter::format()]]
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* method to format an attribute value into a displayable text. Please refer to [[Formatter]] for the supported types.
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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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* - name: 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.
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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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*/
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public $attributes;
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/**
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* @var string|callback the template used to render a single attribute. If a string, the token `{label}`
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* and `{value}` will be replaced with the label and the value of the corresponding attribute.
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* If a callback (e.g. an anonymous function), the signature must be as follows:
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*
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* ~~~
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* function ($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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public $template = "<tr><th>{label}</th><td>{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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*/
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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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}
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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, $i++);
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}
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$tag = ArrayHelper::remove($this->options, 'tag', 'table');
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echo Html::tag($tag, implode("\n", $rows), $this->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 integer $index the zero-based index of the attribute in the [[attributes]] array
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* @return string the rendering result
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*/
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protected function renderAttribute($attribute, $index)
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{
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if (is_string($this->template)) {
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return strtr($this->template, [
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'{label}' => $attribute['label'],
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'{value}' => $this->formatter->format($attribute['value'], $attribute['format']),
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]);
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} else {
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return call_user_func($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 ? $this->model->toArray() : array_keys(get_object_vars($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+)(\s*:\s*(\w+))?$/', $attribute, $matches)) {
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throw new InvalidConfigException('The attribute must be specified in the format of "Name" or "Name:Format"');
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}
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$attribute = [
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'name' => $matches[1],
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'format' => isset($matches[3]) ? $matches[3] : 'text',
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];
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}
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if (!is_array($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($attribute['name'])) {
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$name = $attribute['name'];
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if (!isset($attribute['label'])) {
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$attribute['label'] = $this->model instanceof Model ? $this->model->getAttributeLabel($name) : Inflector::camel2words($name, 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, $name);
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}
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} elseif (!isset($attribute['label']) || !array_key_exists('value', $attribute)) {
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throw new InvalidConfigException('The attribute configuration requires the "name" element to determine the value and display label.');
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}
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$this->attributes[$i] = $attribute;
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}
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}
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}
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