About the operation of ZendFramework2 to connect to the database

This article mainly introduces the operation of ZendFramework2 to connect to the database. It analyzes the specific steps, configuration methods, related operating skills and precautions of ZendFramework2 to connect to the database in the form of a complete example. Friends in need can refer to this article

The example describes the operation of ZendFramework2 to connect to the database. Share it with everyone for your reference, the details are as follows:

Compared with zf1, zf2 allows us to operate the database. My personal feeling is that it is easier to alias fields, but although the operation of the database is Once the configuration is written, there is basically no need to change it, but it is still more cumbersome than the configuration in 1.

The same sentence, you can take a look at the source code. . .

Add

public function getServiceConfig()
{
    return array(
      'factories' => array(
        'Student\Model\StudentTable' => function($sm) {
          $tableGateway = $sm->get('StudentTableGateway');
          $table = new StudentTable($tableGateway);
          return $table;
        },
        'StudentTableGateway' => function ($sm) {
          $dbAdapter = $sm->get('Zend\Db\Adapter\Adapter');
          $resultSetPrototype = new ResultSet();
          $resultSetPrototype->setArrayObjectPrototype(new Student());
          return new TableGateway('cc_user', $dbAdapter, null, $resultSetPrototype);//table Name is cc_user
        },
      ),
    );
}

student.php to Module.php. This is Model/Student.php

namespace Student\Model;
class Student
{
  public $id;
  public $name;
  public $phone;
  public $mark;
  public $email;
  public function exchangeArray($data)//别名
  {
    $this->id   = (!empty($data['cc_u_id'])) ? $data['cc_u_id'] : null;
    $this->name = (!empty($data['cc_u_name'])) ? $data['cc_u_name'] : null;
    $this->phone = (!empty($data['cc_u_phone'])) ? $data['cc_u_phone'] : null;
    $this->mark = (!empty($data['cc_u_mark'])) ? $data['cc_u_mark'] : null;
    $this->email = (!empty($data['cc_u_email'])) ? $data['cc_u_email'] : null;
  }
}

StudentTable.php Model/StudentTable.php

<?php
namespace Student\Model;
use Zend\Db\ResultSet\ResultSet;
use Zend\Db\TableGateway\TableGateway;
use Zend\Db\Sql\Select;
use Zend\Paginator\Adapter\DbSelect;
use Zend\Paginator\Paginator;
class StudentTable
{
  protected $tableGateway;
  protected $table=&#39;cc_user&#39;;
  public function __construct(TableGateway $tableGateway)
  {
    $this->tableGateway = $tableGateway;
  }
  public function fetchAll($paginated)
  {//分页
     if($paginated) {
      // create a new Select object for the table album
      $select = new Select(&#39;cc_user&#39;);
      // create a new result set based on the Student entity
      $resultSetPrototype = new ResultSet();
      $resultSetPrototype->setArrayObjectPrototype(new Student());
      // create a new pagination adapter object
      $paginatorAdapter = new DbSelect(
        // our configured select object
        $select,
        // the adapter to run it against
        $this->tableGateway->getAdapter(),
        // the result set to hydrate
        $resultSetPrototype
      );
      $paginator = new Paginator($paginatorAdapter);
      return $paginator;
    }
    $resultSet = $this->tableGateway->select();
    return $resultSet;
  }
  public function getStudent($id)
  {
    $id = (int) $id;
    $rowset = $this->tableGateway->select(array(&#39;id&#39; => $id));
    $row = $rowset->current();
    if (!$row) {
      throw new \Exception("Could not find row $id");
    }
    return $row;
  }
  public function deleteStudent($id)
  {
    $this->tableGateway->delete(array(&#39;id&#39; => $id));
  }
  public function getLIValue(){
    return $this->tableGateway->getLastInsertValue();
  }
}

Student/IndexController.php calls the database

public function indexAction(){
    /* return new ViewModel(array(
      'students' => $this->getStudentTable()->fetchAll(), //不分页
    ));*/
    $page=$this->params('page');//走分页 在model.config.php里面设置:
/*　　　　　　model.config.php　　　　　　
'defaults' => array(
 'controller' => 'Student\Controller\Index',
 'action'   => 'index',
 'page'=>'1',
),
*/
    $paginator = $this->getStudentTable()->fetchAll(true);
    // set the current page to what has been passed in query string, or to 1 if none set
    $paginator->setCurrentPageNumber((int)$this->params()->fromQuery('page', $page));
    // set the number of items per page to 10
    $paginator->setItemCountPerPage(10);
    return new ViewModel(array(
      'paginator' => $paginator //模板页面调用的时候的名字
    ));
  //print_r($this->getStudentTable()->fetchAll());
}

Call on the template page

<?php foreach ($this->paginator as $student) : ?>
<tr id="<?php echo $this->escapeHtml($student->id);?>">
  <td><?php echo $this->escapeHtml($student->id);?></td>
  <td><?php echo $this->escapeHtml($student->name);?></td>
  <td><?php echo $this->escapeHtml($student->phone);?></td>
  <td><?php echo $this->escapeHtml($student->email);?></td>//应用了在Student.php的别名
  <td><?php echo $this->escapeHtml($student->mark);?></td>
    <td><a href=&#39;#&#39;  class=&#39;icol-bandaid editUserInfo&#39;></a>  
      <a href=&#39;#&#39; class=&#39;icol-key changePwd&#39;></a>  
      <a herf=&#39;#&#39;  class=&#39;icol-cross deleteStud&#39;></a>
    </td>
  </tr>
<?php endforeach;?>

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