Jepp9350
b97881ff05
Replaced all references to `maintenancemode_dbtest.customer_attributes` with `customer_attributes` in `users_o.php` for clarity and consistency. Additionally, removed unnecessary empty line in `redis_t.php` to improve code formatting.
346 lines
8.2 KiB
PHP
346 lines
8.2 KiB
PHP
<?php
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namespace traits;
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use classes\redis;
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use Exception;
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use Predis\Client as PredisClient;
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trait redis_t
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{
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/**
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* The Redis scheme
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* @var string
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*/
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protected string $redis_scheme = 'tcp';
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/**
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* The Redis host
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* @var string
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*/
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protected string $redis_host = '';
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/**
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* The Redis port
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* @var int
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*/
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protected int $redis_port = 6379;
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/**
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* The Redis password
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* @var string
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*/
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protected string $redis_password = '';
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/**
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* The Redis database
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* @var int
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*/
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protected int $redis_database = 0;
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/**
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* The object types that can be stored in the Redis server, this is used to prevent unauthorized objects from being stored
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* @var array
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*/
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private array $object_types = [
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'order', // The order objects (orders table in the database)
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];
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/**
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* Get the Redis client
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* @var PredisClient
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*/
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private PredisClient $redis;
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/**
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* Does the key exist in the Redis server
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* @param string $key
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* @return bool
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*/
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public function exists(string $key): bool
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{
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return $this->redis->exists($key);
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}
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/**
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* Get the Redis client
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* @return PredisClient
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* @throws Exception
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*/
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public function get_client(): PredisClient
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{
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if (!self::is_connected()) {
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self::connect();
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}
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return $this->redis;
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}
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/**
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* Check if the Redis server is connected
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* @return bool
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*/
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public function is_connected(): bool
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{
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return isset($this->redis);
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}
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/**
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* Connect to the Redis server
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* @throws Exception
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*/
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public function connect(): self
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{
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$this->redis = new PredisClient([
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'scheme' => $this->redis_scheme,
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'host' => $this->redis_host,
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'port' => $this->redis_port,
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'password' => $this->redis_password,
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'database' => $this->redis_database
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]);
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// Check if the connection was successful
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if (!self::is_connected()) {
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throw new Exception('Could not connect to the Redis server');
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}
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return $this;
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}
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/**
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* Add a pre-defined object to the Redis server
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* @param string $object_type
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* @param string $key
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* @param string $value
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* @param int $expiration
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* @return redis|redis_t
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* @throws Exception
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*/
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public function add_object(string $object_type, string $key, string $value, int $expiration = 60): self
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{
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// Check if the object type is valid
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if (!self::is_valid_object_type($object_type)) {
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throw new Exception('Invalid object type');
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}
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// Set the object in the Redis server
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$this->setEx($object_type . ':' . $key, $value, $expiration);
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return $this;
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}
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/**
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* Check if the object type is valid
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* @param string $key
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* @return bool
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*/
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private function is_valid_object_type(string $key): bool
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{
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return in_array(self::get_object_type($key), $this->object_types);
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}
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/**
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* Get the object type
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* @param string $key
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* @return string
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*/
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private function get_object_type(string $key): string
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{
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return explode(':', $key)[0];
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}
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/**
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* Set the value in the Redis server with an expiration time
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* @param string $key
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* @param string $value
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* @param int $expiration The expiration time in seconds
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* @return redis|redis_t
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*/
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public function setEx(string $key, string $value, int $expiration = 60): self
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{
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$this->redis->setex($key, $expiration, $value);
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return $this;
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}
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/**
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* Delete a pre-defined object from the Redis server
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* @param string $object_type
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* @param string $key
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* @return redis|redis_t
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* @throws Exception
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*/
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public function delete_object(string $object_type, string $key): self
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{
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// Check if the object type is valid
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if (!self::is_valid_object_type($object_type)) {
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throw new Exception('Invalid object type');
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}
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// Delete the object from the Redis server
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$this->delete($object_type . ':' . $key);
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return $this;
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}
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/**
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* Delete the value from the Redis server
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* @param string $key
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* @return redis|redis_t
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*/
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public function delete(string $key): self
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{
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$this->redis->del($key);
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return $this;
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}
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/**
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* Get a pre-defined object from the Redis server
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* @param string $object_type
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* @param string $key
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* @return string|null
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* @throws Exception
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*/
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public function get_object(string $object_type, string $key): string|null
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{
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// Check if the object type is valid
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if (!self::is_valid_object_type($object_type)) {
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throw new Exception('Invalid object type');
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}
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return $this->get($object_type . ':' . $key);
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}
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/**
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* Get the value from the Redis server
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* @param string $key
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* @return string|null
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*/
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public function get(string $key): string|null
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{
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return $this->redis->get($key);
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}
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/**
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* Disconnect from the Redis server when the object is destroyed
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*/
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public function __destruct()
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{
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if (self::is_connected()) {
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self::disconnect();
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}
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}
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/**
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* Disconnect from the Redis server
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*/
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public function disconnect(): void
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{
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$this->redis->disconnect();
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}
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/**
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* Set array key in Redis
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* @param string $key
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* @param array $value
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* @return redis|redis_t
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*/
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public function set_array(string $key, array $value): self
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{
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$this->set($key, json_encode($value));
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return $this;
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}
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/**
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* Set the value in the Redis server
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* @param string $key
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* @param string $value
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* @return redis|redis_t
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*/
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public function set(string $key, string $value): self
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{
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$this->redis->set($key, $value);
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return $this;
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}
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/**
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* Clear keys from Redis
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* @param string|array $keys
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* @return redis|redis_t
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*/
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public function clear_keys(array|string $keys): self
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{
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if (!is_array($keys)) {
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// Remove all keys matching the pattern
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$keys = $this->get_keys($keys);
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}
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foreach ( $keys as $key ) {
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$this->delete($key);
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}
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return $this;
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}
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/**
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* Get keys from Redis
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* @param string $key The key to search for (supports wildcards)
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* @return array
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*/
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public function get_keys(string $key): array
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{
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// Get all keys from the cache
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return $this->redis->keys($key);
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}
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/**
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* Get all keys from the Redis server
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* @return array
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*/
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public function keys(): array
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{
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return $this->redis->keys('*');
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}
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/**
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* Get arrays from Redis
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* @param string $key The key to search for (supports wildcards)
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* @return array|null
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*/
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public function get_arrays(string $key): array|null
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{
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$keys = $this->get_keys($key);
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$arrays = [];
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foreach ( $keys as $key ) {
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$arrays[] = $this->get_array($key);
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}
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return $arrays;
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}
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/**
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* Get array key from Redis
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* @param string $key
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* @return array|null
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*/
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public function get_array(string $key): array|null
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{
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// Get the array from the cache
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$value = $this->get($key);
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// Check if the value is not null
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if ($value === null) {
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return null;
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}
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// Check if the value is not a valid JSON
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if (!self::is_json($value)) {
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return null;
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}
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return json_decode($value, true);
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}
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/**
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* Check if the value is a valid JSON
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* @param string $value
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* @return bool
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*/
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private function is_json(string $value): bool
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{
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json_decode($value);
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return json_last_error() === JSON_ERROR_NONE;
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}
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/**
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* Get the count of matching keys
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* @param string $key The key to search for (supports wildcards)
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* @return int
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*/
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public function count_keys(string $key): int
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{
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return count($this->get_keys($key));
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}
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} |