QueryCacheHelper::invalidate() - Code Metrics - Inspection of "Internal: Add Query Caching Support and Demo Endpo..." - chamilo/chamilo-lms - Measure and Improve Code Quality continuously with Scrutinizer

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by Yannick

created 2025-07-09 17:48 UTC

QueryCacheHelper::invalidate() A

↳ Parent: QueryCacheHelper

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
c	1
b	0
f	0
nc	1
nop	2
dl	0
loc	4
rs	10

<?php

declare(strict_types=1);

/* For licensing terms, see /license.txt */

namespace Chamilo\CoreBundle\Helpers;

use Doctrine\ORM\QueryBuilder;
use Symfony\Contracts\Cache\CacheInterface;
use Symfony\Contracts\Cache\ItemInterface;

/**
 * QueryCacheHelper
 *
 * Helper for caching Doctrine query results.
 *
 * Features:
 * - Automatic generation of cache keys.
 * - Optionally returns cache key along with result (for debugging or manual invalidation).
 * - Supports tagging (if using a TagAware cache adapter).
 *
 * USAGE EXAMPLES:
 *
 * // Run a query with caching:
 * $result = $this->queryCacheHelper->run(
 *     $qb,
 *     'findActiveUsers'
 * );
 *
 * // Run a query with parameters:
 * $result = $this->queryCacheHelper->run(
 *     $qb,
 *     'findByRole',
 *     ['role' => $role, 'keyword' => $keyword]
 * );
 *
 * // Run a query and get cache key for debugging:
 * $result = $this->queryCacheHelper->run(
 *     $qb,
 *     'findByRole',
 *     ['role' => $role, 'keyword' => $keyword],
 *     300,
 *     true // return key
 * );
 *
 * // Run a query with tags:
 * $result = $this->queryCacheHelper->runWithTags(
 *     $qb,
 *     'findByRole',
 *     ['role' => $role, 'keyword' => $keyword],
 *     ['users'],
 *     300
 * );
 *
 * // Invalidate a specific cached query:
 * $this->queryCacheHelper->invalidate('findByRole', [...]);
 *
 * // Invalidate everything with a given tag:
 * $this->queryCacheHelper->invalidateByTag('users');
 */
class QueryCacheHelper
{
    private CacheInterface $cache;
    private int $defaultTtl;

    /**
     * Constructor.
     *
     * @param CacheInterface $cache      The cache adapter to store results.
     * @param int            $defaultTtl Default TTL (in seconds) for cached queries.
     */
    public function __construct(CacheInterface $cache, int $defaultTtl = 600)
    {
        $this->cache = $cache;
        $this->defaultTtl = $defaultTtl;
    }

    /**
     * Runs a Doctrine QueryBuilder and caches its results.
     *
     * @param QueryBuilder     $qb             The Doctrine QueryBuilder to execute.
     * @param string|null      $operationName  Operation name for generating cache key.
     * @param array            $parameters     Parameters affecting the query (included in cache key).
     * @param int|null         $ttl            Time-to-live for cache in seconds.
     * @param bool             $returnKey      Whether to return the cache key alongside data.
     *
     * @return array|mixed Either:
     *                     - array with keys ['data' => ..., 'cache_key' => ...] if $returnKey is true
     *                     - raw query result otherwise
     */
    public function run(
        QueryBuilder $qb,
        ?string $operationName = null,
        array $parameters = [],
        ?int $ttl = 300,
        bool $returnKey = true
    ) {
        $operationName ??= 'anonymous_query';
        $cacheKey = $this->buildCacheKey($operationName, $parameters);

        $result = $this->cache->get($cacheKey, function (ItemInterface $item) use ($qb, $ttl) {
            $item->expiresAfter($ttl ?? $this->defaultTtl);
            return $qb->getQuery()->getResult();
        });

        if ($returnKey) {
            return [
                'data' => $result,
                'cache_key' => $cacheKey,
            ];
        }

        return $result;
    }

    /**
     * Runs a Doctrine QueryBuilder and caches the result with tags.
     *
     * IMPORTANT: Tagging requires a TagAwareAdapter (e.g. Redis).
     *
     * @param QueryBuilder $qb
     * @param string|null  $operationName
     * @param array        $parameters
     * @param array        $tags
     * @param int|null     $ttl
     * @param bool         $returnKey
     *
     * @return array|mixed
     */
    public function runWithTags(
        QueryBuilder $qb,
        ?string $operationName = null,
        array $parameters = [],
        array $tags = [],
        ?int $ttl = null,
        bool $returnKey = true
    ) {
        $operationName ??= 'anonymous_query';
        $cacheKey = $this->buildCacheKey($operationName, $parameters);

        $result = $this->cache->get($cacheKey, function (ItemInterface $item) use ($qb, $ttl, $tags) {
            $item->expiresAfter($ttl ?? $this->defaultTtl);

            if (!empty($tags)) {
                if (method_exists($item, 'tag')) {
                    $item->tag($tags);
                }
            }

            return $qb->getQuery()->getResult();
        });

        if ($returnKey) {
            return [
                'data' => $result,
                'cache_key' => $cacheKey,
            ];
        }

        return $result;
    }

    /**
     * Invalidates the cache for a specific operation and parameters.
     *
     * @param string $operationName
     * @param array  $parameters
     */
    public function invalidate(string $operationName, array $parameters = []): void
    {
        $cacheKey = $this->buildCacheKey($operationName, $parameters);
        $this->cache->delete($cacheKey);
    }

    /**
     * Invalidates all cached entries associated with a specific tag.
     *
     * Requires a TagAwareAdapter (e.g. Redis) to be configured.
     *
     * @param string $tag
     */
    public function invalidateByTag(string $tag): void
    {
        if (method_exists($this->cache, 'invalidateTags')) {
            $this->cache->invalidateTags([$tag]);
        }
    }

    /**
     * Builds a unique cache key from the operation name and parameters.
     *
     * @param string $operationName
     * @param array  $parameters
     *
     * @return string
     */
    public function buildCacheKey(string $operationName, array $parameters): string
    {
        if (empty($parameters)) {
            return $operationName;
        }

        return $operationName . '_' . md5(json_encode($parameters));
    }

    /**
     * Generates a cache key for an operation, without executing any query.
     * Useful for debugging or manual cache clearing.
     *
     * @param string $operationName
     * @param array  $parameters
     *
     * @return string
     */
    public function getCacheKey(string $operationName, array $parameters = []): string
    {
        return $this->buildCacheKey($operationName, $parameters);
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			/* For licensing terms, see /license.txt */
6
7			namespace Chamilo\CoreBundle\Helpers;
8
9			use Doctrine\ORM\QueryBuilder;
10			use Symfony\Contracts\Cache\CacheInterface;
11			use Symfony\Contracts\Cache\ItemInterface;
12
13			/**
14			* QueryCacheHelper
15			*
16			* Helper for caching Doctrine query results.
17			*
18			* Features:
19			* - Automatic generation of cache keys.
20			* - Optionally returns cache key along with result (for debugging or manual invalidation).
21			* - Supports tagging (if using a TagAware cache adapter).
22			*
23			* USAGE EXAMPLES:
24			*
25			* // Run a query with caching:
26			* $result = $this->queryCacheHelper->run(
27			* $qb,
28			* 'findActiveUsers'
29			* );
30			*
31			* // Run a query with parameters:
32			* $result = $this->queryCacheHelper->run(
33			* $qb,
34			* 'findByRole',
35			* ['role' => $role, 'keyword' => $keyword]
36			* );
37			*
38			* // Run a query and get cache key for debugging:
39			* $result = $this->queryCacheHelper->run(
40			* $qb,
41			* 'findByRole',
42			* ['role' => $role, 'keyword' => $keyword],
43			* 300,
44			* true // return key
45			* );
46			*
47			* // Run a query with tags:
48			* $result = $this->queryCacheHelper->runWithTags(
49			* $qb,
50			* 'findByRole',
51			* ['role' => $role, 'keyword' => $keyword],
52			* ['users'],
53			* 300
54			* );
55			*
56			* // Invalidate a specific cached query:
57			* $this->queryCacheHelper->invalidate('findByRole', [...]);
58			*
59			* // Invalidate everything with a given tag:
60			* $this->queryCacheHelper->invalidateByTag('users');
61			*/
62			class QueryCacheHelper
63			{
64			private CacheInterface $cache;
65			private int $defaultTtl;
66
67			/**
68			* Constructor.
69			*
70			* @param CacheInterface $cache The cache adapter to store results.
71			* @param int $defaultTtl Default TTL (in seconds) for cached queries.
72			*/
73			public function __construct(CacheInterface $cache, int $defaultTtl = 600)
74			{
75			$this->cache = $cache;
76			$this->defaultTtl = $defaultTtl;
77			}
78
79			/**
80			* Runs a Doctrine QueryBuilder and caches its results.
81			*
82			* @param QueryBuilder $qb The Doctrine QueryBuilder to execute.
83			* @param string\|null $operationName Operation name for generating cache key.
84			* @param array $parameters Parameters affecting the query (included in cache key).
85			* @param int\|null $ttl Time-to-live for cache in seconds.
86			* @param bool $returnKey Whether to return the cache key alongside data.
87			*
88			* @return array\|mixed Either:
89			* - array with keys ['data' => ..., 'cache_key' => ...] if $returnKey is true
90			* - raw query result otherwise
91			*/
92			public function run(
93			QueryBuilder $qb,
94			?string $operationName = null,
95			array $parameters = [],
96			?int $ttl = 300,
97			bool $returnKey = true
98			) {
99			$operationName ??= 'anonymous_query';
100			$cacheKey = $this->buildCacheKey($operationName, $parameters);
101
102			$result = $this->cache->get($cacheKey, function (ItemInterface $item) use ($qb, $ttl) {
103			$item->expiresAfter($ttl ?? $this->defaultTtl);
104			return $qb->getQuery()->getResult();
105			});
106
107			if ($returnKey) {
108			return [
109			'data' => $result,
110			'cache_key' => $cacheKey,
111			];
112			}
113
114			return $result;
115			}
116
117			/**
118			* Runs a Doctrine QueryBuilder and caches the result with tags.
119			*
120			* IMPORTANT: Tagging requires a TagAwareAdapter (e.g. Redis).
121			*
122			* @param QueryBuilder $qb
123			* @param string\|null $operationName
124			* @param array $parameters
125			* @param array $tags
126			* @param int\|null $ttl
127			* @param bool $returnKey
128			*
129			* @return array\|mixed
130			*/
131			public function runWithTags(
132			QueryBuilder $qb,
133			?string $operationName = null,
134			array $parameters = [],
135			array $tags = [],
136			?int $ttl = null,
137			bool $returnKey = true
138			) {
139			$operationName ??= 'anonymous_query';
140			$cacheKey = $this->buildCacheKey($operationName, $parameters);
141
142			$result = $this->cache->get($cacheKey, function (ItemInterface $item) use ($qb, $ttl, $tags) {
143			$item->expiresAfter($ttl ?? $this->defaultTtl);
144
145			if (!empty($tags)) {
146			if (method_exists($item, 'tag')) {
147			$item->tag($tags);
148			}
149			}
150
151			return $qb->getQuery()->getResult();
152			});
153
154			if ($returnKey) {
155			return [
156			'data' => $result,
157			'cache_key' => $cacheKey,
158			];
159			}
160
161			return $result;
162			}
163
164			/**
165			* Invalidates the cache for a specific operation and parameters.
166			*
167			* @param string $operationName
168			* @param array $parameters
169			*/
170			public function invalidate(string $operationName, array $parameters = []): void
171			{
172			$cacheKey = $this->buildCacheKey($operationName, $parameters);
173			$this->cache->delete($cacheKey);
174			}
175
176			/**
177			* Invalidates all cached entries associated with a specific tag.
178			*
179			* Requires a TagAwareAdapter (e.g. Redis) to be configured.
180			*
181			* @param string $tag
182			*/
183			public function invalidateByTag(string $tag): void
184			{
185			if (method_exists($this->cache, 'invalidateTags')) {
186			$this->cache->invalidateTags([$tag]);
187			}
188			}
189
190			/**
191			* Builds a unique cache key from the operation name and parameters.
192			*
193			* @param string $operationName
194			* @param array $parameters
195			*
196			* @return string
197			*/
198			public function buildCacheKey(string $operationName, array $parameters): string
199			{
200			if (empty($parameters)) {
201			return $operationName;
202			}
203
204			return $operationName . '_' . md5(json_encode($parameters));
205			}
206
207			/**
208			* Generates a cache key for an operation, without executing any query.
209			* Useful for debugging or manual cache clearing.
210			*
211			* @param string $operationName
212			* @param array $parameters
213			*
214			* @return string
215			*/
216			public function getCacheKey(string $operationName, array $parameters = []): string
217			{
218			return $this->buildCacheKey($operationName, $parameters);
219			}
220			}
221

chamilo / chamilo-lms

Push — master ( 5a655a...f1e8b0 )

QueryCacheHelper::invalidate() A

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