Cache::memo

src/Illuminate/Cache/CacheManager.php

@@ -72,6 +72,21 @@ public function driver($driver = null)
         return $this->store($driver);
     }
 
+    /**
+     * Get a memoized cache driver instance.
+     *
+     * @param  string|null  $driver
+     * @return \Illuminate\Contracts\Cache\Repository
+     */
+    public function memo($driver = null)
+    {
+        $driver = $driver ?: $this->getDefaultDriver();
+
+        return $this->stores["__memoized:{$driver}"] ??= $this->repository(
+            new MemoizedStore($driver, $this->store($driver)), ['events' => false]
+        );
+    }
+
     /**
      * Resolve the given store.
      *

src/Illuminate/Cache/MemoizedStore.php

@@ -0,0 +1,203 @@
+<?php
+
+namespace Illuminate\Cache;
+
+use Illuminate\Contracts\Cache\Store;
+
+class MemoizedStore implements Store
+{
+    /**
+     * The memoized cache values.
+     *
+     * @var array<string, mixed>
+     */
+    protected $cache = [];
+
+    /**
+     * Create a new memoized cache instance.
+     *
+     * @param  string  $name
+     * @param  \Illuminate\Cache\Repository  $repository
+     */
+    public function __construct(
+        protected $name,
+        protected $repository,
+    ) {
+        //
+    }
+
+    /**
+     * Retrieve an item from the cache by key.
+     *
+     * @param  string  $key
+     * @return mixed
+     */
+    public function get($key)
+    {
+        if (array_key_exists($this->prefix($key), $this->cache)) {
+            return $this->cache[$this->prefix($key)];
+        }
+
+        return $this->cache[$this->prefix($key)] = $this->repository->get($key);
+    }
+
+    /**
+     * Retrieve multiple items from the cache by key.
+     *
+     * Items not found in the cache will have a null value.
+     *
+     * @return array
+     */
+    public function many(array $keys)
+    {
+        $memoized = [];
+        $retrieved = [];
+        $missing = [];
+
+        foreach ($keys as $key) {
+            if (array_key_exists($this->prefix($key), $this->cache)) {
+                $memoized[$key] = $this->cache[$this->prefix($key)];
+            } else {
+                $missing[] = $key;
+            }
+        }
+
+        if (count($missing) > 0) {
+            $retrieved = tap($this->repository->many($missing), function ($values) {
+                $this->cache = [
+                    ...$this->cache,
+                    ...collect($values)->mapWithKeys(fn ($value, $key) => [
+                        $this->prefix($key) => $value,
+                    ]),
+                ];
+            });
+        }
+
+        $result = [
+            ...$memoized,
+            ...$retrieved,
+        ];
+
+        return array_replace(array_flip($keys), $result);
+    }
+
+    /**
+     * Store an item in the cache for a given number of seconds.
+     *
+     * @param  string  $key
+     * @param  mixed  $value
+     * @param  int  $seconds
+     * @return bool
+     */
+    public function put($key, $value, $seconds)
+    {
+        unset($this->cache[$this->prefix($key)]);
+
+        return $this->repository->put($key, $value, $seconds);
+    }
+
+    /**
+     * Store multiple items in the cache for a given number of seconds.
+     *
+     * @param  int  $seconds
+     * @return bool
+     */
+    public function putMany(array $values, $seconds)
+    {
+        foreach ($values as $key => $value) {
+            unset($this->cache[$this->prefix($key)]);
+        }
+
+        return $this->repository->putMany($values, $seconds);
+    }
+
+    /**
+     * Increment the value of an item in the cache.
+     *
+     * @param  string  $key
+     * @param  mixed  $value
+     * @return int|bool
+     */
+    public function increment($key, $value = 1)
+    {
+        unset($this->cache[$this->prefix($key)]);
+
+        return $this->repository->increment($key, $value);
+    }
+
+    /**
+     * Decrement the value of an item in the cache.
+     *
+     * @param  string  $key
+     * @param  mixed  $value
+     * @return int|bool
+     */
+    public function decrement($key, $value = 1)
+    {
+        unset($this->cache[$this->prefix($key)]);
+
+        return $this->repository->decrement($key, $value);
+    }
+
+    /**
+     * Store an item in the cache indefinitely.
+     *
+     * @param  string  $key
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function forever($key, $value)
+    {
+        unset($this->cache[$this->prefix($key)]);
+
+        return $this->repository->forever($key, $value);
+    }
+
+    /**
+     * Remove an item from the cache.
+     *
+     * @param  string  $key
+     * @return bool
+     */
+    public function forget($key)
+    {
+        unset($this->cache[$this->prefix($key)]);
+
+        return $this->repository->forget($key);
+    }
+
+    /**
+     * Remove all items from the cache.
+     *
+     * @return bool
+     */
+    public function flush()
+    {
+        return tap($this->repository->flush(), function ($result) {
+            if ($result) {
+                $this->cache = [];
+            }
+        });
+    }
+
+    /**
+     * Get the cache key prefix.
+     *
+     * @return string
+     */
+    public function getPrefix()
+    {
+        return $this->repository->getPrefix();
+    }
+
+    /**
+     * Prefix the given key.
+     *
+     * @param  string  $key
+     * @return string
+     */
+    protected function prefix($key)
+    {
+        return $this->getPrefix().$key;
+    }
+}

src/Illuminate/Support/Facades/Cache.php

@@ -4,6 +4,7 @@
 
 /**
  * @method static \Illuminate\Contracts\Cache\Repository store(string|null $name = null)
+ * @method static \Illuminate\Contracts\Cache\Repository memo(string|null $name = null)
  * @method static \Illuminate\Contracts\Cache\Repository driver(string|null $driver = null)
  * @method static \Illuminate\Contracts\Cache\Repository resolve(string $name)
  * @method static \Illuminate\Cache\Repository build(array $config)