Question

table: graduate_applicants

CREATE TABLE IF NOT EXISTS `graduate_applicants` (
  `grat_id` int(10) NOT NULL auto_increment,
  `studentnum` int(9) NOT NULL,
  `QuarterID` int(10) NOT NULL,
  PRIMARY KEY  (`grat_id`)
) 

table: stu_students

CREATE TABLE IF NOT EXISTS `stu_students` (
  `id` int(11) NOT NULL auto_increment,
  `studentid` int(9) default NULL,
  `firstname` varchar(50) default NULL,
  `lastname` varchar(50) default NULL,
  `email` varchar(100) default NULL,
  PRIMARY KEY  (`id`),
  KEY `studentid` (`studentid`),
 )

model：

class GraduateApplicant extends AppModel{

var $name = 'GraduateApplicant';

var $tablePrefix = '';

var $belongsTo = array('Student' => array('className' => 'Student','foreignKey' => false,''conditions' => array('Student.studentid=GraduateApplicant.studentnum'),'fields' => '','order' => ''),);

}

controller:

$list = $this->paginate('GraduateApplicant');

i can not understand why $list is empty ?

Answer 1

CakePHP really makes your life easier if you set up your tables to properly reflect the relationships between them. You could cut your code down by 90% because you don’t have to try to manually specify the way the tables are linked.

students
---------------------------------------------
id   |   firstname   |   lastname   |   email


graduate_applicants
------------------------------------
id   |   student_id   |   quarter_id

Then your model would be simple:

class GraduateApplicant extends AppModel {

    public $belongsTo = array('Student');

}

If it’s an option, I would recommend setting up your database tables properly like this, instead of having the student ID columns called different things in different tables (Student.studentid, GraduateApplicant.studentnum)

And it will also make your life a lot easier if you name your models to properly reflect your table names. Your table is called stu_students but your model is called Student. You should either name your table students and your model Student, your table stu_students and your model StuStudent.