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Develop a custom Drush command to remove the Redis cache by pattern for clear redis cache

Mahmoud Sayed answered on July 31, 2021 Popularity 8/10 Helpfulness 1/10

answer Develop a custom Drush command to remove the Redis cache by pattern for clear redis cache

related clear redis cache

Develop a custom Drush command to remove the Redis cache by pattern for clear redis cache

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<?php

namespace Drupal\custom_module\Commands;

use Drupal\redis\ClientFactory;
use Drupal\redis\RedisPrefixTrait;
use Drush\Commands\DrushCommands;

/**
 * A drush command file for flushing redis cache.
 */
class RedisFlushCommands extends DrushCommands {

  use RedisPrefixTrait;

  /**
   * Predefined patterns.
   *
   * @var array|string[]
   */
  protected array $cacheKeysPatterns = [
    'render:view:api_user_data:*',
    'render:view:api_article_data:*',
    'render:view:api_tag_data:*',
    'render:view:event_pages:display:*',
  ];

  /**
   * Redis active client object.
   *
   * @var \Redis|null
   */
  protected $redis;

  /**
   * Constructs a new RedisFlushCommands object.
   *
   * @param \Drupal\redis\ClientFactory $clientFactory
   *   Redis client factory service.
   */
  public function __construct(ClientFactory $clientFactory) {
    parent::__construct();

    if ($clientFactory->hasClient()) {
      $this->redis = $clientFactory->getClient();
    }
  }

  /**
   * Flush redis cache for a specific pattern.
   *
   * @param string $pattern
   *   Pattern for cache keys.
   *
   * @command redis:flush-pattern
   * @aliases rfp,redis-flush-pattern
   *
   * @usage redis:flush-pattern
   *   Will flush predefined patterns.
   * @usage redis:flush-pattern "*:render:view:api_tag_data:*"
   *   Will flush provided patterns.
   */
  public function redisFlushPattern(string $pattern = "all") {

    // Prepare pattern.
    $pattern = ($pattern == "all") ? $this->cacheKeysPatterns : [$pattern];

    // Check if we have a redis client.
    if ($this->redis instanceof \Redis) {

      // Loop through pattern.
      foreach ($pattern as $key_pattern) {

        // Add prefix to pattern.
        $key_pattern = $this->getDefaultPrefix() . ':' . $key_pattern;

        // Fetch keys.
        $_keys = $this->redis->keys($key_pattern);

        if (!empty($_keys)) {

          // Flush keys.
          $this->redis->del($_keys);
        }
      }
      // Flushed successfully.
      $this->output()
        ->writeln('Successfully flushed.');
    }
    else {

      // No client available.
      $this->output()
        ->writeln('Redis client not available.');
    }

  }

}

Popularity 8/10 Helpfulness 1/10 Language php

Source: drupaljournal.com

Tags: command drush php redis-cache

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Contributed on Dec 10 2022

Mahmoud Sayed

0 Answers Avg Quality 2/10

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clear redis cache

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redis-cli flushall

Popularity 10/10 Helpfulness 10/10 Language whatever

Source: phoenixnap.com

Tags: redis-cache redi

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Contributed on Jul 31 2021

The Sarraf

0 Answers Avg Quality 2/10

Develop a custom Drush command to remove the Redis cache by pattern for clear redis cache

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