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fimak/controller.SiteController.php

Last active August 29, 2015 14:06
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  1. fimak revised this gist Feb 6, 2015. 4 changed files with 272 additions and 272 deletions.
    80 changes: 40 additions & 40 deletions controller.SiteController.php
    View file
    Original file line number Diff line number Diff line change
    @@ -2,32 +2,32 @@

    class SiteController extends Controller
    {
    /**
    * Declares class-based actions.
    */
    public function actions()
    {
    return array(
    // captcha action renders the CAPTCHA image displayed on the contact page
    'captcha'=>array(
    'class'=>'CCaptchaAction',
    'backColor'=>0xFFFFFF,
    ),
    // page action renders "static" pages stored under 'protected/views/site/pages'
    // They can be accessed via: index.php?r=site/page&view=FileName
    'page'=>array(
    'class'=>'CViewAction',
    ),
    );
    }
    /**
    * Declares class-based actions.
    */
    public function actions()
    {
    return array(
    // captcha action renders the CAPTCHA image displayed on the contact page
    'captcha'=>array(
    'class'=>'CCaptchaAction',
    'backColor'=>0xFFFFFF,
    ),
    // page action renders "static" pages stored under 'protected/views/site/pages'
    // They can be accessed via: index.php?r=site/page&view=FileName
    'page'=>array(
    'class'=>'CViewAction',
    ),
    );
    }

    /**
    * This is the default 'index' action that is invoked
    * when an action is not explicitly requested by users.
    */
    public function actionIndex()
    {
    $subject = new Subject();
    /**
    * This is the default 'index' action that is invoked
    * when an action is not explicitly requested by users.
    */
    public function actionIndex()
    {
    $subject = new Subject();
    $student = new Student();
    $mark = new Mark();

    @@ -37,26 +37,26 @@ public function actionIndex()
    $subjectWithLosers = new CArrayDataProvider($subject->getSubjectWithLosers());
    $chartData = $mark->getDataForChart();

    $this->render('index', array(
    $this->render('index', array(
    'averageMarks' => $averageMarks,
    'averageMarkOfStudent' => $averageMarkOfStudent,
    'numberOfStudents' => $numberOfStudents,
    'subjectWithLosers' => $subjectWithLosers,
    'chartData' => $chartData,
    ));
    }
    }

    /**
    * This is the action to handle external exceptions.
    */
    public function actionError()
    {
    if($error=Yii::app()->errorHandler->error)
    {
    if(Yii::app()->request->isAjaxRequest)
    echo $error['message'];
    else
    $this->render('error', $error);
    }
    }
    /**
    * This is the action to handle external exceptions.
    */
    public function actionError()
    {
    if($error=Yii::app()->errorHandler->error)
    {
    if(Yii::app()->request->isAjaxRequest)
    echo $error['message'];
    else
    $this->render('error', $error);
    }
    }
    }
    164 changes: 82 additions & 82 deletions models.Mark.php
    View file
    Original file line number Diff line number Diff line change
    @@ -16,96 +16,96 @@
    */
    class Mark extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'mark';
    }
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'mark';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('student_id, subject_id, value, date', 'required'),
    array('student_id, subject_id, value', 'numerical', 'integerOnly'=>true),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, student_id, subject_id, value, date', 'safe', 'on'=>'search'),
    );
    }
    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('student_id, subject_id, value, date', 'required'),
    array('student_id, subject_id, value', 'numerical', 'integerOnly'=>true),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, student_id, subject_id, value, date', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'subject' => array(self::BELONGS_TO, 'Subject', 'subject_id'),
    'student' => array(self::BELONGS_TO, 'Student', 'student_id'),
    );
    }
    /**
    * @return array relational rules.
    */
    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(
    'subject' => array(self::BELONGS_TO, 'Subject', 'subject_id'),
    'student' => array(self::BELONGS_TO, 'Student', 'student_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'student_id' => 'Student',
    'subject_id' => 'Subject',
    'value' => 'Value',
    'date' => 'Date',
    );
    }
    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'student_id' => 'Student',
    'subject_id' => 'Subject',
    'value' => 'Value',
    'date' => 'Date',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.
    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;
    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('student_id',$this->student_id);
    $criteria->compare('subject_id',$this->subject_id);
    $criteria->compare('value',$this->value);
    $criteria->compare('date',$this->date,true);
    $criteria->compare('id',$this->id);
    $criteria->compare('student_id',$this->student_id);
    $criteria->compare('subject_id',$this->subject_id);
    $criteria->compare('value',$this->value);
    $criteria->compare('date',$this->date,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Mark the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }
    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Mark the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    public function getDataForChart()
    {
    150 changes: 75 additions & 75 deletions models.Student.php
    View file
    Original file line number Diff line number Diff line change
    @@ -12,89 +12,89 @@
    */
    class Student extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'student';
    }
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'student';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('name', 'required'),
    array('name', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, name', 'safe', 'on'=>'search'),
    );
    }
    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('name', 'required'),
    array('name', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, name', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'student_id'),
    );
    }
    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'student_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'name' => 'Name',
    );
    }
    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'name' => 'Name',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.
    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;
    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('name',$this->name,true);
    $criteria->compare('id',$this->id);
    $criteria->compare('name',$this->name,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Student the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }
    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Student the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    /**
    * @return mixed
    150 changes: 75 additions & 75 deletions models.Subject.php
    View file
    Original file line number Diff line number Diff line change
    @@ -12,89 +12,89 @@
    */
    class Subject extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'subject';
    }
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'subject';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('title', 'required'),
    array('title', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, title', 'safe', 'on'=>'search'),
    );
    }
    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('title', 'required'),
    array('title', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, title', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'subject_id'),
    );
    }
    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'subject_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'title' => 'Title',
    );
    }
    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'title' => 'Title',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.
    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;
    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('title',$this->title,true);
    $criteria->compare('id',$this->id);
    $criteria->compare('title',$this->title,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Subject the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }
    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Subject the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    /**
    * @return mixed
  2. fimak created this gist Sep 17, 2014.
    62 changes: 62 additions & 0 deletions controller.SiteController.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,62 @@
    <?php

    class SiteController extends Controller
    {
    /**
    * Declares class-based actions.
    */
    public function actions()
    {
    return array(
    // captcha action renders the CAPTCHA image displayed on the contact page
    'captcha'=>array(
    'class'=>'CCaptchaAction',
    'backColor'=>0xFFFFFF,
    ),
    // page action renders "static" pages stored under 'protected/views/site/pages'
    // They can be accessed via: index.php?r=site/page&view=FileName
    'page'=>array(
    'class'=>'CViewAction',
    ),
    );
    }

    /**
    * This is the default 'index' action that is invoked
    * when an action is not explicitly requested by users.
    */
    public function actionIndex()
    {
    $subject = new Subject();
    $student = new Student();
    $mark = new Mark();

    $averageMarks = new CArrayDataProvider($subject->getAverageMarks());
    $averageMarkOfStudent = new CArrayDataProvider($student->getAverageMarkOfStudentBySubject());
    $numberOfStudents = $student->getNumberOfSuccessfulMathematicians();
    $subjectWithLosers = new CArrayDataProvider($subject->getSubjectWithLosers());
    $chartData = $mark->getDataForChart();

    $this->render('index', array(
    'averageMarks' => $averageMarks,
    'averageMarkOfStudent' => $averageMarkOfStudent,
    'numberOfStudents' => $numberOfStudents,
    'subjectWithLosers' => $subjectWithLosers,
    'chartData' => $chartData,
    ));
    }

    /**
    * This is the action to handle external exceptions.
    */
    public function actionError()
    {
    if($error=Yii::app()->errorHandler->error)
    {
    if(Yii::app()->request->isAjaxRequest)
    echo $error['message'];
    else
    $this->render('error', $error);
    }
    }
    }
    129 changes: 129 additions & 0 deletions models.Mark.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,129 @@
    <?php

    /**
    * This is the model class for table "mark".
    *
    * The followings are the available columns in table 'mark':
    * @property integer $id
    * @property integer $student_id
    * @property integer $subject_id
    * @property integer $value
    * @property string $date
    *
    * The followings are the available model relations:
    * @property Subject $subject
    * @property Student $student
    */
    class Mark extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'mark';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('student_id, subject_id, value, date', 'required'),
    array('student_id, subject_id, value', 'numerical', 'integerOnly'=>true),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, student_id, subject_id, value, date', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'subject' => array(self::BELONGS_TO, 'Subject', 'subject_id'),
    'student' => array(self::BELONGS_TO, 'Student', 'student_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'student_id' => 'Student',
    'subject_id' => 'Subject',
    'value' => 'Value',
    'date' => 'Date',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('student_id',$this->student_id);
    $criteria->compare('subject_id',$this->subject_id);
    $criteria->compare('value',$this->value);
    $criteria->compare('date',$this->date,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Mark the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    public function getDataForChart()
    {
    $query = Yii::app()->db->createcommand("
    SELECT subject.title, mark.date, AVG(mark.value) AS avg_mark
    FROM subject
    INNER JOIN mark ON subject.id = mark.subject_id
    GROUP BY mark.date, subject.title
    ORDER BY mark.date
    ")->queryAll();

    //here we prepare data to chart
    $data = array();
    foreach($query as $key => $value){
    $date = new DateTime($value['date']);
    $date->modify('-1 month');
    $data[$value['title']] .= "[Date.UTC(".str_replace('-', ', ',$date->format('Y-m-d'))."), {$value['avg_mark']}],";
    }
    return $data;
    }
    }
    136 changes: 136 additions & 0 deletions models.Student.php
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,136 @@
    <?php

    /**
    * This is the model class for table "student".
    *
    * The followings are the available columns in table 'student':
    * @property integer $id
    * @property string $name
    *
    * The followings are the available model relations:
    * @property Mark[] $marks
    */
    class Student extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'student';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('name', 'required'),
    array('name', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, name', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'student_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'name' => 'Name',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('name',$this->name,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Student the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    /**
    * @return mixed
    */
    public function getAverageMarkOfStudentBySubject()
    {
    $date = new DateTime();
    //запрос работает при условии что у каждого студента/предмета есть оценка в текущем месяце
    //в противном случае просто не выводит студента у которого нет оценки по предмету за текущий месяц
    //сделал так потому что сходу придумать правильный запрос не получилось а времени осталось мало
    //на то что бы отправить задание сегодня, для того что бы оно было проверено к моменту моего
    //прихода на собеседование во вторник утром
    return Yii::app()->db->createCommand("
    SELECT student.name, subject.title, AVG(mark.value) AS avg_mark
    FROM subject
    INNER JOIN mark ON subject.id = mark.subject_id
    INNER JOIN student ON student.id = mark.student_id
    WHERE mark.date >= '{$date->format('Y-m')}'
    GROUP BY student.name, subject.title
    ORDER BY student.name
    ")->queryAll();
    }

    /**
    * @return mixed
    */
    public function getNumberOfSuccessfulMathematicians()
    {
    $query = Yii::app()->db->createCommand("
    SELECT student_id
    FROM mark
    WHERE subject_id=3
    GROUP BY student_id
    HAVING AVG(value)>4
    ")->queryAll();

    return count($query);
    }
    }
    130 changes: 130 additions & 0 deletions models.Subject.php
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    <?php

    /**
    * This is the model class for table "subject".
    *
    * The followings are the available columns in table 'subject':
    * @property integer $id
    * @property string $title
    *
    * The followings are the available model relations:
    * @property Mark[] $marks
    */
    class Subject extends CActiveRecord
    {
    /**
    * @return string the associated database table name
    */
    public function tableName()
    {
    return 'subject';
    }

    /**
    * @return array validation rules for model attributes.
    */
    public function rules()
    {
    // NOTE: you should only define rules for those attributes that
    // will receive user inputs.
    return array(
    array('title', 'required'),
    array('title', 'length', 'max'=>255),
    // The following rule is used by search().
    // @todo Please remove those attributes that should not be searched.
    array('id, title', 'safe', 'on'=>'search'),
    );
    }

    /**
    * @return array relational rules.
    */
    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(
    'marks' => array(self::HAS_MANY, 'Mark', 'subject_id'),
    );
    }

    /**
    * @return array customized attribute labels (name=>label)
    */
    public function attributeLabels()
    {
    return array(
    'id' => 'ID',
    'title' => 'Title',
    );
    }

    /**
    * Retrieves a list of models based on the current search/filter conditions.
    *
    * Typical usecase:
    * - Initialize the model fields with values from filter form.
    * - Execute this method to get CActiveDataProvider instance which will filter
    * models according to data in model fields.
    * - Pass data provider to CGridView, CListView or any similar widget.
    *
    * @return CActiveDataProvider the data provider that can return the models
    * based on the search/filter conditions.
    */
    public function search()
    {
    // @todo Please modify the following code to remove attributes that should not be searched.

    $criteria=new CDbCriteria;

    $criteria->compare('id',$this->id);
    $criteria->compare('title',$this->title,true);

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

    /**
    * Returns the static model of the specified AR class.
    * Please note that you should have this exact method in all your CActiveRecord descendants!
    * @param string $className active record class name.
    * @return Subject the static model class
    */
    public static function model($className=__CLASS__)
    {
    return parent::model($className);
    }

    /**
    * @return mixed
    */
    public function getAverageMarks()
    {
    $date = new DateTime();
    return Yii::app()->db->createCommand("
    SELECT subject.title, AVG(mark.value) AS avg_mark
    FROM subject
    INNER JOIN mark ON subject.id = mark.subject_id
    WHERE mark.date >= '{$date->format('Y-m')}'
    GROUP BY subject.title
    ORDER BY avg_mark DESC
    ")->queryAll();

    }

    /**
    * @return mixed
    */
    public function getSubjectWithLosers()
    {
    return Yii::app()->db->createCommand("
    SELECT subject.title
    FROM subject
    INNER JOIN mark ON subject.id=mark.subject_id
    WHERE mark.value=2
    GROUP BY subject.title
    HAVING COUNT(mark.id)>2
    ")->queryAll();
    }
    }
    83 changes: 83 additions & 0 deletions vews.site.index.php
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    <?php
    /* @var $this SiteController */

    $this->pageTitle=Yii::app()->name;

    echo CHtml::tag('b', array(), 'Cредняя оценка по предмету по всем ученикам за текущий месяц:');
    $this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider' => $averageMarks,
    'columns' => array(
    'title',
    'avg_mark'
    ),
    ));

    echo CHtml::tag('b', array(), 'Cредняя оценка студента по предмету за текущий месяц:');
    $this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider' => $averageMarkOfStudent,
    'columns' => array(
    'name',
    'title',
    'avg_mark'
    ),
    ));

    echo CHtml::tag('b', array(), "Предметы, где количество двоешников больше двух:");
    $this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider' => $subjectWithLosers,
    'columns' => array(
    'title',
    ),
    ));

    echo CHtml::tag('b', array(), "Количество учеников, у которых средняя оценка по математике выше четверки = {$numberOfStudents}");

    Yii::app()->clientScript->registerScriptFile('http://code.highcharts.com/highcharts.js', CClientScript::POS_HEAD);
    Yii::app()->clientScript->registerScriptFile('http://code.highcharts.com/modules/exporting.js', CClientScript::POS_HEAD);
    Yii::app()->clientScript->registerScript('myLineChart', "
    $(function () {
    $('#chart_container').highcharts({
    chart: {
    type: 'spline'
    },
    title: {
    text: 'График средней успеваемости учеников по дням'
    },
    xAxis: {
    type: 'datetime',
    },
    yAxis: {
    title: {
    text: 'Оценка'
    },
    min: 2,
    max: 5
    },
    tooltip: {
    formatter: function() {
    return '<b>'+ this.series.name +'</b><br/>'+
    Highcharts.dateFormat('%e. %b', this.x) +': '+'mark='+ this.y;
    }
    },
    series: [{
    name: 'chemistry',
    data: [{$chartData['chemistry']}]
    }, {
    name: 'english',
    data: [{$chartData['english']}]
    }, {
    name: 'biology',
    data: [{$chartData['biology']}]
    }, {
    name: 'math',
    data: [{$chartData['math']}]
    }, {
    name: 'literature',
    data: [{$chartData['literature']}]
    }]
    });
    });
    ", CClientScript::POS_HEAD);
    ?>
    <div id="chart_container" style="width: 900px; height: 500px; margin-top: 50px;"></div>