/**
* Renders the content of a menu item.
* Note that the container and the sub-menus are not rendered here.
* @param array $item the menu item to be rendered. Please refer to [[items]] to see what data might be in the item.
* @return string the rendering result
*/
protected function renderItem($item)
{
if (isset($item['url'])) {
$template = ArrayHelper::getValue($item, 'template', $this->linkTemplate);
return strtr($template, ['{url}' => Html::encode(Url::to($item['url'])), '{label}' => $item['label']]);
} else {
$template = ArrayHelper::getValue($item, 'template', $this->labelTemplate);
return strtr($template, ['{label}' => $item['label']]);
}
}
/**
* Normalizes the attribute specifications.
* @throws InvalidConfigException
*/
protected function normalizeAttributes()
{
if ($this->attributes === null) {
if ($this->model instanceof Model) {
$this->attributes = $this->model->attributes();
} elseif (is_object($this->model)) {
$this->attributes = $this->model instanceof Arrayable ? $this->model->toArray() : array_keys(get_object_vars($this->model));
} elseif (is_array($this->model)) {
$this->attributes = array_keys($this->model);
} else {
throw new InvalidConfigException('The "model" property must be either an array or an object.');
}
sort($this->attributes);
}
foreach ($this->attributes as $i => $attribute) {
if (is_string($attribute)) {
if (!preg_match('/^([\\w\\.]+)(:(\\w*))?(:(.*))?$/', $attribute, $matches)) {
throw new InvalidConfigException('The attribute must be specified in the format of "attribute", "attribute:format" or "attribute:format:label"');
}
$attribute = ['attribute' => $matches[1], 'format' => isset($matches[3]) ? $matches[3] : 'text', 'label' => isset($matches[5]) ? $matches[5] : null];
}
if (!is_array($attribute)) {
throw new InvalidConfigException('The attribute configuration must be an array.');
}
if (isset($attribute['visible']) && !$attribute['visible']) {
unset($this->attributes[$i]);
continue;
}
if (!isset($attribute['format'])) {
$attribute['format'] = 'text';
}
if (isset($attribute['attribute'])) {
$attributeName = $attribute['attribute'];
if (!isset($attribute['label'])) {
$attribute['label'] = $this->model instanceof Model ? $this->model->getAttributeLabel($attributeName) : Inflector::camel2words($attributeName, true);
}
if (!array_key_exists('value', $attribute)) {
$attribute['value'] = ArrayHelper::getValue($this->model, $attributeName);
}
} elseif (!isset($attribute['label']) || !array_key_exists('value', $attribute)) {
throw new InvalidConfigException('The attribute configuration requires the "attribute" element to determine the value and display label.');
}
$this->attributes[$i] = $attribute;
}
}
/**
* Returns the data cell value.
* @param mixed $model the data model
* @param mixed $key the key associated with the data model
* @param integer $index the zero-based index of the data model among the models array returned by [[GridView::dataProvider]].
* @return string the data cell value
*/
public function getDataCellValue($model, $key, $index)
{
if ($this->value !== null) {
if (is_string($this->value)) {
return ArrayHelper::getValue($model, $this->value);
} else {
return call_user_func($this->value, $model, $key, $index, $this);
}
} elseif ($this->attribute !== null) {
return ArrayHelper::getValue($model, $this->attribute);
}
return null;
}
