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<?php |
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/* |
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The MIT License (MIT) |
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Copyright (c) 2016 yii2-tools <[email protected]> |
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the Software is |
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furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included in all |
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copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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SOFTWARE. |
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*/ |
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namespace yii\tools\filters; |
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use Yii; |
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use yii\helpers\Url; |
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use yii\base\UnknownMethodException; |
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use yii\base\UnknownPropertyException; |
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use yii\base\ActionFilter; |
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use yii\di\Instance; |
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use yii\web\Controller as WebController; |
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/** |
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* Filter which automatically append module as breadcrumb item if it exists in requested route |
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* If module-owner exists in current route, it will be added in breadcrumb widget config |
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* (default: Yii::$app->controller->view->params['breadcrumbs']) |
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* |
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* Usage example: |
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* |
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* public function behaviors() |
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* { |
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* return array_merge(parent::behaviors(), [ |
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* 'breadcrumbs' => [ |
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* 'class' => BreadcrumbsFilter::className(), |
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* ] |
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* ]); |
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* } |
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* |
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* Example owners in use cases: |
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* yii\base\Module (recommended) |
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* yii\base\Component, with implemented 'getUniqueId()' |
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* Object, with routeCreator as callable function |
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*/ |
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class BreadcrumbsFilter extends ActionFilter |
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{ |
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/** |
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* Param name of current controller's View |
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* which will be passed as input array for breadcrumb widget |
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* |
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* i.e. $view->params[$breadcrumbsParam] = [breadcrumbs config array ...] |
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* |
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* @var string |
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*/ |
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public $breadcrumbsParam = 'breadcrumbs'; |
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/** |
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* Empty as default value, means what native php array numering used |
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* If defined, breadcrumb config array becomes like that: |
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* |
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* [ |
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* $breadcrumbsKey => [ |
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* 'label' => ..., |
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* 'url' => ... |
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* ] |
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* ] |
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* |
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* Useful if you have some override logic in your views, example: |
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* |
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* { // View context |
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* $this->params['breadcrumbs']['module'] = ... |
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* } |
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* |
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* @var string |
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*/ |
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public $breadcrumbsKey = ''; |
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/** |
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* Component field, used as label for breadcrumb widget record |
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* @var string |
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*/ |
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public $labelParam = 'id'; |
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/** |
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* If presents, used instead of $labelParam for constructing breadcrumb |
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* @var string |
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*/ |
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public $label = ''; |
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/** |
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* If default route matches current route |
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* breadcrumb will not be active (Url parameter in config will be omitted) |
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* |
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* How it works: |
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* /news/default/create => Home / News / Create |
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* /news/default/index => Home / News |
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* instead of: |
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* Home / News / Index |
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* |
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* Override this property to FALSE if you don't need such behavior |
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* and want to always see full detailed breadcrumbs navigation |
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* even if it's default module page |
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* @var string |
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*/ |
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public $defaultRoute = 'default/index'; |
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/** |
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* Array of strings-routes what should be ignored in breadcrumb navigation |
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* Example: ['site/default/index', 'index', 'ind'] |
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* Comparation of current route with $exceptRoutes performs by strpos() function |
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* ['*'] stands for "don't show me in breadcrumbs completely" |
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* @var array |
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*/ |
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public $exceptRoutes = []; |
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/** |
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* Used for Url generation as second parameter of breadcrumb widget config |
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* May be a callable which received $filter as arguments: |
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* |
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* function ($filter) { |
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* return $filter->owner->getUniqueId(); |
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* } |
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* |
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* Callable function should return full route to filter's owner, example: |
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* Module 'users' is a submodule of 'admin', callable returns: |
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* |
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* 'admin/users' or null |
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* |
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* Returning null means what this breadcrumb shouldn't contain link, |
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* what makes it active by widget |
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* |
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* @var string|callable |
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*/ |
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public $routeCreator = 'getUniqueId'; |
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/** |
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* Identifies that breadcrumbs for this owner is already registered (for current request). |
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* @var bool |
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*/ |
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private $ready = false; |
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/** |
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* @param \yii\base\Action $action |
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* @return bool |
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*/ |
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public function beforeAction($action) |
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{ |
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if (Yii::$app->controller instanceof WebController && !$this->ready) { |
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$this->buildBreadcrumbs(); |
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$this->ready = true; |
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} |
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return parent::beforeAction($action); |
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} |
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/** |
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* Appends owner's breadcrumb for current controller's view |
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*/ |
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protected function buildBreadcrumbs() |
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{ |
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if (!empty($this->exceptRoutes) && $this->reject()) return; |
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$params = $this->getBreadcrumbs(); |
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if (!empty($this->breadcrumbsKey)) { |
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Yii::$app->controller->getView()->params[$this->breadcrumbsParam][$this->breadcrumbsKey] = $params; |
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} else { |
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Yii::$app->controller->getView()->params[$this->breadcrumbsParam][] = $params; |
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} |
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} |
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/** |
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* You can call this method directly, for example: |
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* |
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* ``` |
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* $breadcrumbItem = $module->getBreadcrumbs(); |
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* ``` |
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* |
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* Note: this method returns breadcrumbs for owner |
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* without checking property $exceptRoutes |
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* @return array |
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*/ |
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public function getBreadcrumbs() |
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{ |
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$breadcrumb = [ |
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'label' => $this->buildBreadcrumbLabel() |
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]; |
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if ($this->isActiveBreadcrumb()) { |
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// for compapability with custom breadcrumbs widgets. |
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$breadcrumb['options'] = ['class' => 'active']; |
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} else { |
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$breadcrumb['url'] = $this->buildBreadcrumbUrl(); |
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} |
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return $breadcrumb; |
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} |
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/** |
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* @return string |
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* @throws \yii\base\UnknownPropertyException |
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*/ |
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protected function buildBreadcrumbLabel() |
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{ |
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if (!empty($this->label)) { |
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return $this->label; |
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} |
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if (!$this->owner->hasProperty($this->labelParam)) { |
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throw new UnknownPropertyException("BreadcrumbsFilter's owner should provide property '" |
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. $this->labelParam . "'"); |
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} |
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return $this->owner->{$this->labelParam}; |
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} |
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/** |
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* @return null|string |
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* @throws \yii\base\UnknownMethodException |
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* @throws \yii\base\UnknownPropertyException |
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*/ |
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protected function buildBreadcrumbUrl() |
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{ |
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return ($route = $this->buildBreadcrumbRoute()) ? Url::to(['/' . $route]) : null; |
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} |
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protected function isActiveBreadcrumb() |
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{ |
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if ($this->defaultRoute === false) return false; |
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if ($this->owner->id === Yii::$app->controller->module->id) { |
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$relativeRoute = Yii::$app->controller->id . '/' . Yii::$app->controller->action->id; |
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return strpos($this->defaultRoute, $relativeRoute) !== false; |
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} |
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return false; |
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} |
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protected function buildBreadcrumbRoute() |
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{ |
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if (is_string($this->routeCreator)) { |
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if (!$this->owner->hasMethod('getUniqueId')) { |
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throw new UnknownMethodException("BreadcrumbsFilter's owner should provide method 'getUniqueId'"); |
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} |
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return $this->owner->{$this->routeCreator}(); |
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} |
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if (is_callable($this->routeCreator)) { |
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return call_user_func($this->routeCreator, $this); |
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} |
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throw new UnknownPropertyException("BreadcrumbsFilter's should be configured with valid routeCreator" |
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. " (owner's method name or callable)"); |
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} |
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/** |
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* Rejects breadcrumbs creation for current route |
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* Performs by sequentually checks of $exceptRoutes array |
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*/ |
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protected function reject() |
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{ |
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foreach ($this->exceptRoutes as $route) { |
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if ($route === '*' || strpos(Yii::$app->requestedRoute, $route) !== false) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |