如何使用drupal自定义模块获取数据库表

Question

我尝试开发一个自定义模块，它有两个日期弹出窗口“start_date”和“end_date”，我有包含ID，姓名，付款日期，付款金额的数据库表。我需要获取数据库并显示为表按钮点击。我在drupal中编写了一些代码，如果错误请更正，并请指导我获取特定日期范围的表格

我的编码：

Uniview8Past paymentsController.php

<?php

namespace Drupal\uniview8_pastpayments\Controller;

use Drupal\Core\Controller\ControllerBase;
use Drupal\uniview8_pastpayments\Uniview8PastPaymentsStorage;

class Uniview8PastpaymentsController extends ControllerBase {
  public function entryList() {
    $content = array();

    $content['message'] = array(
      '#markup' => $this->t('Pastpayment history for selected date ranges.'),
    );

    $rows = array();
    $headers = array(t('Id'), t('Name'), t('Paid Date'), t('Paid Amount'));

    foreach ($entries = Uniview8PastPaymentsStorage::load() as $entry) {
      $rows[] = array_map('Drupal\Component\Utility\SafeMarkup::checkPlain', (array) $entry);
    }
    $content['table'] = array(
      '#type' => 'table',
      '#header' => $headers,
      '#rows' => $rows,
      '#empty' => t('No entries available.'),
    );
    $content['#cache']['max-age'] = 0;

    return $content;
  }
}

表格 uniview8_past payments.php

<?php

namespace Drupal\uniview8_pastpayments\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

class uniview8_pastpayments extends FormBase {

  public function getFormId() {
    return 'uniview8_pastpayments';
  }

 public function buildForm(array $form, FormStateInterface $form_state) {

 $form['set_start_date'] = [
      '#title' => $this->t('START DATE '),
      '#type' => 'date',
      '#attributes' => array('type'=> 'date', 'min'=> '-12 months', 'max' => 'now' ),
      '#date_date_format' => 'd/m/Y',
    ];


 $form['set_end_date'] = [
      '#title' => $this->t('END DATE'),
      '#type' => 'date',
      '#attributes' => array('type'=> 'date', 'min'=> '-12 months', 'max' => 'now' ),
      '#date_date_format' => 'd/m/Y',
    ];


  $form['actions']['#type'] = 'actions';
  $form['actions']['submit'] = array(
      '#type' => 'submit',
      '#value' => $this->t('Fetch'),
      '#button_type' => 'primary',
    );
    return $form;


}

}

我如何使用提交按钮获取数据库

**DB_select Function
Uniview8PastPaymentsStorage.php**
<?php
namespace Drupal\uniview8_pastpayments;
class Uniview8PastPaymentsStorage {

  public static function load($entry = array()) {

    $select = db_select('pastpayments', 'example');
    $select->fields('example')
    $select->condition('paiddate',$entry['set_start_date'], '>=')
    $select->condition('paiddate',$entry['set_end_date'], '>=')
    $select->execute();

    foreach ($entry as $field => $value) {
      $select->condition($field, $value);
    }
    // Return the result in object format.
    return $select->execute()->fetchAll();
  }
}

Answer 1

如果您的表单显示在控制器页面，那么您必须在表单提交中使用ajax 像这样

<?php

namespace Drupal\uniview8_pastpayments\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\ChangedCommand;
use Drupal\Core\Ajax\CssCommand;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Ajax\InvokeCommand;


class uniview8_pastpayments extends FormBase {

  public function getFormId() {
    return 'uniview8_pastpayments';
  }

 public function buildForm(array $form, FormStateInterface $form_state) {

 $form['set_start_date'] = [
      '#title' => $this->t('START DATE '),
      '#type' => 'date',
      '#attributes' => array('type'=> 'date', 'min'=> '-12 months', 'max' => 'now' ),
      '#date_date_format' => 'd/m/Y',
    ];


 $form['set_end_date'] = [
      '#title' => $this->t('END DATE'),
      '#type' => 'date',
      '#attributes' => array('type'=> 'date', 'min'=> '-12 months', 'max' => 'now' ),
      '#date_date_format' => 'd/m/Y',
    ];


  $form['actions']['#type'] = 'actions';
  $form['actions']['submit'] = array(
      '#type' => 'submit',
      '#value' => $this->t('Fetch'),
      '#ajax' => [
          //'callback' => 'Drupal\mcal_textmining\Form\CreateReportsForm::submitCreateReport',
          'callback' => array($this, 'fetchResult'),
          'event' => 'click',
          'progress' => array(
              'type' => 'throbber',
              'message' => t('Submitting...')
          )
      ]
    );
    return $form;


}
 /**
   * {@inheritdoc}
   */
  public function validateForm(array &$form, FormStateInterface $form_state) {
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

  }

  /**
   * {@inheritdoc}
   */
  public function fetchResult(array &$form, FormStateInterface $form_state) {
     $maxDate = $form_state->getValue('set_start_date');
     $minDate = $form_state->getValue('set_end_date');
     $connection = Database::getConnection();
     $single = $connection->select('pastpayments', 'x')
        ->fields('x', array('Id','name','paiddate','paidamount'))
        ->condition('paiddate', $maxDate, "<=")
        ->condition('paiddate', $minDate, ">=");
     $executed = $single->execute();
     $results = $executed->fetchAssoc();
     foreach($results as $result){
       /*
          creat html table's tbody with result
          like
          $tbody .= "<tr><td>paidamount</td></tr>" 
      */

     }
     // now append the result into the table as tbody
     // with drupal ajax 
     $response = new AjaxResponse();
     $response->addCommand(new HtmlCommand('tbodyID', $tbody));
     return $response;

  }
}

但是如果您的表单位于另一个页面，并且在提交表单后将用户重定向到您的控制器页面，然后将开始日期和结束日期作为参数发送给控制器，然后从您的控制器进行数据库查询

然后将结果附加到页面中
谢谢