| 1 |  |  | <?php | 
                            
                    |  |  |  | 
                                                                                        
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                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace nkostadinov\taxonomy\controllers; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use nkostadinov\taxonomy\models\TaxonomyTerms; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Yii; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use nkostadinov\taxonomy\models\TaxonomyDef; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use nkostadinov\taxonomy\models\TaxonomyDefSearch; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use yii\base\InvalidConfigException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use yii\data\ActiveDataProvider; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use yii\helpers\Url; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use yii\web\Controller; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | use yii\web\NotFoundHttpException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use yii\filters\VerbFilter; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | // fcgi doesn't have STDIN and STDOUT defined by default | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | defined('STDIN') or define('STDIN', fopen('php://stdin', 'r')); | 
                            
                    |  |  |  | 
                                                                                        
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                | 18 |  |  | defined('STDOUT') or define('STDOUT', fopen('php://stdout', 'w')); | 
                            
                    |  |  |  | 
                                                                                        
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                | 19 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | class Migrator extends \yii\console\controllers\MigrateController | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 21 |  |  | { | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  |     public function __construct($id, $module, $config = []) | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |         parent::__construct($id, $module, $config); // TODO: Change the autogenerated stub | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     public function runTaxonomy($class, $migrationPath) | 
                            
                    |  |  |  | 
                                                                                        
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                | 28 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |         ob_start(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |         //$this->migrationPath = Yii::getAlias($migrationPath); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |         if($this->beforeAction('up')) | 
                            
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                | 32 |  |  |             $this->migrateUp($class); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         $result = ob_get_contents(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         return $result; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     public function removeTaxonomy($class, $migrationPath) | 
                            
                    |  |  |  | 
                                                                                        
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                | 38 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         ob_start(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         //$this->migrationPath = Yii::getAlias($migrationPath); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |         if($this->beforeAction('down')) | 
                            
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                | 42 |  |  |             $this->migrateDown($class); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         $result = ob_get_contents(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         return $result; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |  * DefController implements the CRUD actions for TaxonomyDef model. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | class DefController extends Controller | 
                            
                    |  |  |  | 
                                                                                        
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                | 52 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |     public function behaviors() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |         return [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |             'verbs' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |                 'class' => VerbFilter::className(), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |                 'actions' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |                     'delete' => ['post'], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |                 ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * Lists all TaxonomyDef models. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * @throws InvalidConfigException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     public function actionIndex() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         if(!$this->getComponent()->isInstalled()) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |             throw new InvalidConfigException("Please run the migration first!"); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         $searchModel = new TaxonomyDefSearch(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         $dataProvider = $searchModel->search(Yii::$app->request->queryParams); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |         return $this->render('index', [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |             'searchModel' => $searchModel, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             'dataProvider' => $dataProvider, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         ]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      * Displays a single TaxonomyDef model. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * @param integer $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     public function actionView($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         $termProvider = new ActiveDataProvider([ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |             'query' => TaxonomyTerms::find()->andFilterWhere(['taxonomy_id' => $id]), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |             'sort' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |                 // Set the default sort by name ASC and created_at DESC. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |                 'defaultOrder' => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |                     'total_count' => SORT_DESC, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |                 ] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |         ]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |         return $this->render('view', [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |             'model' => $this->findModel($id), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |             'termProvider' => $termProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |         ]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |      * Creates a new TaxonomyDef model. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |      * If creation is successful, the browser will be redirected to the 'view' page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |     public function actionCreate() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |         $model = new TaxonomyDef(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |         $definitions = $this->getComponent()->getDefinitions(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |         if ($model->load(Yii::$app->request->post())) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |             //install the term | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |             $term = Yii::createObject($model->attributes); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |                 //$this->getComponent()->getTerm($model->name); | 
                            
                    |  |  |  | 
                                                                                        
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                | 121 |  |  |             $term->install(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |             $migration = new Migrator('migrate', Yii::$app); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |             $messsage = $migration->runTaxonomy($term->migration, $term->migrationPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |             Yii::$app->session->setFlash('info', $messsage, true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             return $this->redirect(['index', 'id' => $model->id]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |             return $this->render('create', [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |                 'model' => $model, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |                 'definitions' => $definitions, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |             ]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      * Updates an existing TaxonomyDef model. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |      * If update is successful, the browser will be redirected to the 'view' page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * @param integer $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |     public function actionUpdate($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         $model = $this->findModel($id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |         $definitions = $this->getComponent()->getDefinitions(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |         if ($model->load(Yii::$app->request->post()) && $model->save()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |             return $this->redirect(['view', 'id' => $model->id]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |             return $this->render('update', [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |                 'model' => $model, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |                 'definitions' => $definitions, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |             ]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |      * Deletes an existing TaxonomyDef model. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |      * If deletion is successful, the browser will be redirected to the 'index' page. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |      * @param integer $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |      * @return mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |     public function actionDelete($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |         $model = $this->findModel($id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |         //UNinstall the term | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |         $term = $this->getComponent()->getTerm($model->name); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |         $migration = new Migrator('migrate', Yii::$app); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |         $messsage = $migration->removeTaxonomy($term->migration, $term->migrationPath); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         Yii::$app->session->setFlash('info', $messsage, true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |         $term->uninstall(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |         return $this->redirect(['index']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |      * Finds the TaxonomyDef model based on its primary key value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |      * If the model is not found, a 404 HTTP exception will be thrown. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |      * @param integer $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |      * @return TaxonomyDef the loaded model | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |      * @throws NotFoundHttpException if the model cannot be found | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |     protected function findModel($id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |         if (($model = TaxonomyDef::findOne($id)) !== null) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |             return $model; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |             throw new NotFoundHttpException('The requested page does not exist.'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |     public function getComponent() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |         if(\Yii::$app->has($this->module->component)) | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |             return \Yii::$app->{$this->module->component}; | 
                            
                    |  |  |  | 
                                                                                        
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                | 197 |  |  |         else | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |             throw new InvalidConfigException("Cannot find taxonomy component({$this->module->component})"); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |     public function actionInstall() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         if(!$this->getComponent()->isInstalled() and \Yii::$app->request->isPost) { | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |             //start installation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |             if($this->getComponent()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |                 $this->getComponent()->install(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |                 $this->redirect(['/'.$this->module->id . '/' . $this->id . '/index']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |             } else | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |                 throw new InvalidConfigException("Cannot find taxonomy component({$this->module->component})"); | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |         return $this->render('install'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |     public function actionInstallterm($term) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |         $term = $this->getComponent()->getTerm($term); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |         $term->install(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 220 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 221 |  |  |  | 
            
                        
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.