Dynamic_Banner_Block.php in Dynamic Banner 8

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File

src/Plugin/Block/Dynamic_Banner_Block.php
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<?php

namespace Drupal\dynamic_banner\Plugin\Block;

use Drupal\Core\Block\BlockBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Block\BlockPluginInterface;
use Drupal\Component\Utility\Unicode;
use Drupal\file\Entity\File;

/**
 * Provides a 'Hello' Block.
 *
 * @Block(
 *   id = "Dynamic Banner",
 *   admin_label = @Translation("Dynamic Banner"),
 *   category = @Translation("Dynamic Banner"),
 * )
 */
class Dynamic_Banner_Block extends BlockBase {
  public function build() {

    // store the path of the page the block is loading from, this will sead our first searches

    //$path = drupal_strtolower(drupal_get_path_alias($_GET['q']));
    $current_path = \Drupal::service('path.current')
      ->getPath();
    $path = \Drupal::service('path_alias.manager')
      ->getAliasByPath($current_path);
    $path = trim($path, '/');
    do {
      $result = NULL;

      // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
      // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
      $query = \Drupal::database()
        ->select('dynamic_banner', 'd');
      $query
        ->condition('d.path', $path, '=')
        ->fields('d');
      $result = $query
        ->execute()
        ->fetchObject();

      // search for that path string exact match
      if ($result) {

        // have to translate if we have fids
        // image should always be in path format (sites/default/banners/pic0.jpg,sites/default/banners/pic1.jpg)
        if (!empty($result->imgurl) || !empty($result->imgfid)) {
          $image = $this
            ->dynamic_banner_image_handler($result->imgurl, $result->imgfid);
        }
        else {
          $image = "";
        }
        $bannerarr = array(
          'url' => $image,
          'text' => $result->text,
          'link' => $result->link,
          'display_setting' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_setting', BANNER_DEFAULT_OUTPUT),
          'display_errors' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_errors', BANNER_DEFAULT_ERROR),
        );

        // return array('content' => theme('banner_output', $bannerarr));
        return [
          '#theme' => 'banner_output',
          '#bannerarr' => $bannerarr,
        ];
      }

      // wild section //
      $result = NULL;
      $wild_search = $path . '*';

      // create and execute query
      // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
      // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
      $query = \Drupal::database()
        ->select('dynamic_banner', 'd');
      $query
        ->condition('d.path', $wild_search, '=')
        ->fields('d');
      $result = $query
        ->execute()
        ->fetchObject();

      // search for the wild card string exact match
      if ($result) {

        // have to translate if we have fids
        // image should always be in path format (sites/default/banners/pic0.jpg,sites/default/banners/pic1.jpg)
        if (!empty($result->imgurl) || !empty($result->imgfid)) {
          $image = $this
            ->dynamic_banner_image_handler($result->imgurl, $result->imgfid);
        }
        else {
          $image = "";
        }
        $bannerarr = array(
          'url' => $image,
          'text' => $result->text,
          'link' => $result->link,
          'display_setting' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_setting', BANNER_DEFAULT_OUTPUT),
          'display_errors' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_errors', BANNER_DEFAULT_ERROR),
        );

        // return array('content' => theme('banner_output', $bannerarr));
        return [
          '#theme' => 'banner_output',
          '#bannerarr' => $bannerarr,
        ];
      }

      // random section //
      $result = NULL;
      $random_search = $path . '!';

      // create and execute query
      // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
      // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
      $query = \Drupal::database()
        ->select('dynamic_banner', 'd');
      $query
        ->condition('d.path', $random_search, '=')
        ->fields('d');
      $result = $query
        ->execute()
        ->fetchObject();

      // search for that random string exact match
      if ($result) {

        // get extra stuff associated with randoms
        if (!empty($result->imgurl) || !empty($result->imgfid)) {
          $images = $this
            ->dynamic_banner_image_handler($result->imgurl, $result->imgfid);
        }
        else {
          $images = "";
        }

        // support for random text if needed
        $texts = $result->text;

        // explode comma seperated images and text
        $image = explode(",", $images);

        // support for random text if needed
        $text = explode(",", $texts);

        // count how many there are
        $count = count($image);

        // handle the random with ints (deal with array start at 0 problems)
        // so if there are 3 elements in the array it is 0-2 not 1-3 so generate random based on that
        $random = $count - rand(0, $count - 1) - 1;

        // remember text is optional
        $bannerarr = array(
          'url' => $image[$random],
          'text' => $text[$random],
          'link' => $result->link,
          'display_setting' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_setting', BANNER_DEFAULT_OUTPUT),
          'display_errors' => \Drupal::config('dynamic_banner.settings')
            ->get('dynamic_banner_display_errors', BANNER_DEFAULT_ERROR),
        );

        // return array('content' => theme('banner_output', $bannerarr));
        return [
          '#theme' => 'banner_output',
          '#bannerarr' => $bannerarr,
        ];
      }

      // chop off more of the string and try again, it is key to not modify the path before this point
      $last_slash_position = strrpos($path, "/");

      // returns false if not found
      if ($last_slash_position !== FALSE) {

        //$path = drupal_substr($path, 0, $last_slash_position);  drupal_substr is undefineed
        $path = mb_substr($path, 0, $last_slash_position);
      }
      else {
        $path = FALSE;
      }
    } while ($path != FALSE);

    // loop until we find the top down hirarchy
    // well no banner was found for this specific page if we have a default banner then display it

    ///////////////////////////// this will soon be stored in the variables table ////////////////// TODO

    // create and execute query
    // TODO: Drupal Rector Notice: Please delete the following comment after you've made any necessary changes.
    // You will need to use `\Drupal\core\Database\Database::getConnection()` if you do not yet have access to the container here.
    $query = \Drupal::database()
      ->select('dynamic_banner', 'd');
    $query
      ->condition('d.path', 'DEFAULT', '=')
      ->fields('d');
    $result = $query
      ->execute()
      ->fetchObject();

    // for the resultant row (SHOULD ALWAYS BE ONE)
    if ($result) {
      if (!empty($result->imgurl) && !empty($result->imgfid)) {
        $image = $this
          ->dynamic_banner_image_handler($result->imgurl, $result->imgfid);
      }
      else {
        $image = "";
      }
      $bannerarr = array(
        'url' => $image,
        'text' => $result->text,
        'link' => $result->link,
        'display_setting' => \Drupal::config('dynamic_banner.settings')
          ->get('dynamic_banner_display_setting', BANNER_DEFAULT_OUTPUT),
        'display_errors' => \Drupal::config('dynamic_banner.settings')
          ->get('dynamic_banner_display_errors', BANNER_DEFAULT_ERROR),
      );

      //return array('content' => theme('banner_output', $bannerarr));
      return [
        '#theme' => 'banner_output',
        '#bannerarr' => $bannerarr,
      ];
    }

    // just encase something went wrong
    // return array('#markup' => 'Hello World');
  }

  /**
   * This function will load imgurl if there is no url for img
   * then it will load the fids into path format
   *
   * Input 1: The imgurl(s) that we are loading [maybe csv]
   * Input 2: The imgfid(s) that we are loading [maybe csv]
   */
  public function dynamic_banner_image_handler($imgurl, $imgfid) {

    // we have found the imgurl already in the right format return it
    if ($imgurl && $imgurl != '') {
      return $imgurl;
    }
    else {
      if (strrpos($imgfid, ',')) {

        // split the plain string into an array
        $all_fids = explode(",", $imgfid);

        // load all files at once

        //$all_files = file_load_multiple($all_fids);
        $all_files = \Drupal\file\Entity\File::loadMultiple($all_fids);
        $retval = "";

        // default the return string
        // go into all the loaded files
        foreach ($all_files as $file) {

          // if this is the first time through do not add a comma to the string
          if ($retval != "") {
            $retval .= ",";
          }

          // have to translate the public string in the uri back into something browsers understand
          if (isset($file)) {
            $fileUrl = file_create_url($file
              ->getFileUri());
          }
          else {
            $fileUrl = '';
          }

          //$retval .= str_replace('public://', file_public_path() . '/', $fileUrl);
          $retval .= str_replace('public://', '/', $fileUrl);
        }
        return $retval;
      }
      else {
        $file = \Drupal::service('entity_type.manager')
          ->getStorage('file')
          ->load((int) $imgfid);

        // have to translate the public string in the uri back into something browsers understand
        if (isset($file)) {
          $fileUrl = file_create_url($file
            ->getFileUri());
        }
        else {
          $fileUrl = '';
        }
        $file_path = str_replace('public://', '/', $fileUrl);
        return $file_path;
      }
    }
  }

  //disable caching in this block
  public function getCacheMaxAge() {
    return 0;
  }

}
Classes

Name	Description
Dynamic_Banner_Block	Provides a 'Hello' Block.
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Dynamic_Banner_Block.php in Dynamic Banner 8

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