Paper.php

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<?php

class Paper extends CActiveRecord {

    public $file;
    
    public static function model($className = __CLASS__) {
        return parent::model($className);
    }

    public function tableName() {
        return 'paper';
    }

    public function rules() {
        // NOTE: you should only define rules for those attributes that
        // will receive user inputs.
        return array(
            array('paper_name', 'length', 'max' => 60),
            array('paper_size', 'length', 'max' => 10),
            array('author_id', 'length', 'max' => 6),
            array('author_name', 'length', 'max' => 20),
            array('rating', 'length', 'max' => 2),
            //Yükleme kuralları, sadece pdf dosyalar yüklenecek.
            array('file', 'file', 'types' => 'pdf'),
            // The following rule is used by search().
            // Please remove those attributes that should not be searched.
            array('id, paper_name, paper_size, author_id, author_name, rating', 'safe', 'on' => 'search'),
        );
    }

    public function relations() {
        // NOTE: you may need to adjust the relation name and the related
        // class name for the relations automatically generated below.
        return array(
        );
    }

    public function attributeLabels() {
        return array(
            'id' => 'ID',
            'paper_name' => 'Paper Name',
            'paper_size' => 'Paper Size',
            'author_id' => 'Author',
            'author_name' => 'Author Name',
            'rating' => 'Rating',
        );
    }

    public function search() {
        // Warning: Please modify the following code to remove attributes that
        // should not be searched.

        $criteria = new CDbCriteria;

        $criteria->compare('id', $this->id, true);
        $criteria->compare('paper_name', $this->paper_name, true);
        $criteria->compare('paper_size', $this->paper_size, true);
        $criteria->compare('author_id', $this->author_id, true);
        $criteria->compare('author_name', $this->author_name, true);
        $criteria->compare('rating', $this->rating, true);

        return new CActiveDataProvider($this, array(
                    'criteria' => $criteria,
                ));
    }

    public function beforeSave() {
        if ($file = CUploadedFile::getInstance($this, 'file')) {
            $this->paper_name = $file->name;
            $this->paper_size = $file->size;
            $this->author_id = Yii::app()->user->id;
            $this->author_name = Yii::app()->user->name;
        }

        return parent::beforeSave();
    }

}