CODEWITHSUNDEEP
yii
nu123
nu123

Reputation: 139

How to get multiple table values to gridview?

I have two tables and i need to filter and put those two table data to gridview.i use joined two table like this

         $student=new Student;
         $marks=new AssimentMarks;

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

        $criteria->select    = 't.st_id,t.st_name,stu.ass_id,stu.marks_cr1,stu.marks_cr2,stu.marks_cr3,stu.marks_cr4,stu.marks_cr5';
        $criteria->join      = 'INNER JOIN assiment_marks stu ON stu.st_id=t.st_id';
        $criteria->condition = 'stu.ass_id=:ass_id';
        $criteria->params    = array(':ass_id'=>Yii::app()->session['modelcrite']['ass_id']);
        $criteria->addInCondition('t.st_id', $studentid);

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

but in gridviwe only show the student database values.it is show as .how can i pass two models to CActiveDataProvider ?

this is how data shows https://i.sstatic.net/Kogjz.jpg

Upvotes: 0

Views: 1764

Answers (1)

ippi
ippi

Reputation: 10177

1) Foreign key in schema

Your assiment table should reference your student table with a foreign key, like this (assuming SQLite):

CREATE TABLE student (
    id INTEGER PRIMARY KEY,
    name TEXT
);

CREATE TABLE assiment_record(  
    id INTEGER PRIMARY KEY,
    student_id INTEGER,
    cr1 INTEGER,
    cr2 INTEGER,
    cr3 INTEGER,
    cr4 INTEGER,
    cr5 INTEGER,
    FOREIGN KEY( student_id ) REFERENCES student(id)   -- FK goes in the CHILD table. 
);

2) Generate models with Gii:

student -> models/Student.php

assiment_record -> models/AssimentRecord.php

Gii is smart and guesses your relations:

// AssimentRecord.php looks good! No changes made!
public function relations()
return array(
    'student' => array(self::BELONGS_TO, 'Student', 'student_id'),
);

The assiment record BELONGS TO the student.

3) Tweak gii's output (Student.php)

But Gii's is not perfect, and does not know what your intentions are. The current student relation (HAS_MANY) returns an array, but I don't want to deal with the array (because I'm lazy!), so I change it into a HAS_ONE-relation instead:

// Student.php
public function relations()
{
    return array(
    // Change this:   'assimentRecords' => array(self::HAS_MANY, 'AssimentRecord', 'student_id'),
    /* into this: */  'assimentRecord'  => array(self::HAS_ONE,  'AssimentRecord', 'student_id'),
    );
}

The student HAS ONE assiment record.

4) Display the grid:

// views/site/index.php  (Or wherever.)
$dataProvider = new CActiveDataProvider( 'Student' );
$this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider'=>$dataProvider,
    'columns' => array(
        'id',
        'name',
        'assimentRecord.cr1',
        'assimentRecord.cr2',
        'assimentRecord.cr3',
        'assimentRecord.cr4',
        'assimentRecord.cr5',
    )
));

Upvotes: 3

Related Questions