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<?php |
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/** |
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* Bluz Framework Component |
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* |
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* @copyright Bluz PHP Team |
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* @link https://github.com/bluzphp/framework |
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*/ |
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declare(strict_types=1); |
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namespace Bluz\Db; |
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use Bluz\Db\Exception\DbException; |
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use Bluz\Db\Exception\InvalidPrimaryKeyException; |
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use Bluz\Proxy\Cache; |
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use Bluz\Proxy\Db as DbProxy; |
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/** |
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* Table |
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* |
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* Example of Users\Table |
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* <code> |
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* namespace Application\Users; |
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* class Table extends \Bluz\Db\Table |
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* { |
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* protected $table = 'users'; |
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* protected $primary = ['id']; |
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* } |
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* |
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* $userRows = \Application\Users\Table::find(1,2,3,4,5); |
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* foreach ($userRows as $userRow) { |
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* $userRow -> description = 'In first 5'; |
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* $userRow -> save(); |
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* } |
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* </code> |
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* |
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* @package Bluz\Db |
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* @author Anton Shevchuk |
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* @link https://github.com/bluzphp/framework/wiki/Db-Table |
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*/ |
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abstract class Table |
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{ |
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/** |
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* @var string the table name |
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*/ |
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protected $name; |
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/** |
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* @var string the model name |
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*/ |
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protected $model; |
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/** |
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* @var array table meta |
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*/ |
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protected $meta = []; |
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/** |
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* @var string default SQL query for select |
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*/ |
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protected $select = ''; |
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/** |
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* @var array the primary key column or columns (only as array). |
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*/ |
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protected $primary; |
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/** |
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* @var string the sequence name, required for PostgreSQL |
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*/ |
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protected $sequence; |
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/** |
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* @var string row class name |
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*/ |
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protected $rowClass; |
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/** |
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* Create and initialize Table instance |
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*/ |
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private function __construct() |
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{ |
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$tableClass = static::class; |
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$namespace = class_namespace($tableClass); |
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// autodetect model name |
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if (!$this->model) { |
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$this->model = substr($namespace, strrpos($namespace, '\\') + 1); |
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} |
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// autodetect table name - camelCase to uppercase |
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if (!$this->name) { |
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$table = preg_replace('/(?<=\\w)(?=[A-Z])/', '_$1', $this->model); |
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$this->name = strtolower($table); |
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} |
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// autodetect row class |
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if (!$this->rowClass) { |
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$this->rowClass = $namespace . '\\Row'; |
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} |
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// setup default select query |
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if (empty($this->select)) { |
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$this->select = 'SELECT * ' . |
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'FROM ' . DbProxy::quoteIdentifier($this->name); |
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} |
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Relations::addClassMap($this->model, $tableClass); |
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$this->init(); |
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} |
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/** |
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* Initialization hook. |
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* Subclasses may override this method |
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*/ |
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public function init() |
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{ |
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} |
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/** |
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* Get Table instance |
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* |
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* @return static |
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*/ |
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public static function getInstance() |
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{ |
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static $instance; |
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if (null === $instance) { |
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$instance = new static(); |
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} |
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return $instance; |
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} |
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/** |
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* Set select query |
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* |
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* @param string $select SQL query |
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* |
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* @return Table |
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*/ |
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public function setSelectQuery($select) |
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{ |
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$this->select = $select; |
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return $this; |
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} |
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/** |
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* Get select query |
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* |
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* @return string |
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*/ |
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public function getSelectQuery() |
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{ |
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return $this->select; |
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} |
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/** |
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* Get primary key(s) |
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* |
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* @return array |
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* @throws InvalidPrimaryKeyException if primary key was not set or has wrong format |
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*/ |
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public function getPrimaryKey() |
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{ |
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if (!is_array($this->primary)) { |
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throw new InvalidPrimaryKeyException('The primary key must be set as an array'); |
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} |
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return $this->primary; |
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} |
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/** |
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* Get table name |
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* |
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* @return string |
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*/ |
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public function getName() |
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{ |
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return $this->name; |
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} |
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/** |
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* Get model name |
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* |
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* @return string |
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*/ |
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public function getModel() |
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{ |
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return $this->model; |
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} |
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/** |
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* Return information about table columns |
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* |
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* @return array |
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*/ |
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public static function getMeta() |
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{ |
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$self = static::getInstance(); |
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if (empty($self->meta)) { |
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$cacheKey = "db.table.{$self->name}"; |
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$meta = Cache::get($cacheKey); |
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if (!$meta) { |
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$schema = DbProxy::getOption('connect', 'name'); |
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$meta = DbProxy::fetchUniqueGroup( |
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' |
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SELECT COLUMN_NAME, DATA_TYPE, COLUMN_DEFAULT, COLUMN_KEY |
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FROM INFORMATION_SCHEMA.COLUMNS |
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WHERE TABLE_SCHEMA = ? |
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AND TABLE_NAME = ?', |
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[$schema, $self->getName()] |
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); |
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Cache::set($cacheKey, $meta, Cache::TTL_NO_EXPIRY, ['system', 'db']); |
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} |
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$self->meta = $meta; |
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} |
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return $self->meta; |
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} |
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/** |
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* Return names of table columns |
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* |
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* @return array |
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*/ |
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public static function getColumns() |
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{ |
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$self = static::getInstance(); |
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return array_keys($self::getMeta()); |
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} |
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/** |
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* Filter columns for insert/update queries by table columns definition |
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* |
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* @param array $data |
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* |
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* @return array |
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*/ |
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public static function filterColumns($data) |
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{ |
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return array_intersect_key($data, array_flip(static::getColumns())); |
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} |
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/** |
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* Fetching rows by SQL query |
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* |
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* @param string $sql SQL query with placeholders |
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* @param array $params Params for query placeholders |
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* |
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* @return array of rows results in FETCH_CLASS mode |
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*/ |
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public static function fetch($sql, $params = []) |
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{ |
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$self = static::getInstance(); |
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return DbProxy::fetchObjects($sql, $params, $self->rowClass); |
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} |
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/** |
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* Fetch all rows from table |
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* Be carefully with this method, can be very slow |
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* |
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* @return array of rows results in FETCH_CLASS mode |
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*/ |
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public static function fetchAll() |
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{ |
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$self = static::getInstance(); |
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return DbProxy::fetchObjects($self->select, [], $self->rowClass); |
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} |
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/** |
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* Fetches rows by primary key. The argument specifies one or more primary |
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* key value(s). To find multiple rows by primary key, the argument must |
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* be an array. |
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* |
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* This method accepts a variable number of arguments. If the table has a |
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* multi-column primary key, the number of arguments must be the same as |
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* the number of columns in the primary key. To find multiple rows in a |
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* table with a multi-column primary key, each argument must be an array |
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* with the same number of elements. |
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* |
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* The find() method always returns a array |
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* |
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* Row by primary key, return array |
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* Table::find(123); |
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* |
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* Row by compound primary key, return array |
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* Table::find([123, 'abc']); |
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* |
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* Multiple rows by primary key |
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* Table::find(123, 234, 345); |
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* |
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* Multiple rows by compound primary key |
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* Table::find([123, 'abc'], [234, 'def'], [345, 'ghi']) |
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* |
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* @param mixed ...$keys The value(s) of the primary keys. |
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* |
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* @return array |
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* @throws InvalidPrimaryKeyException if wrong count of values passed |
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*/ |
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public static function find(...$keys) |
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{ |
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$keyNames = array_values(static::getInstance()->getPrimaryKey()); |
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$whereList = []; |
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foreach ($keys as $keyValues) { |
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$keyValues = (array)$keyValues; |
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if (count($keyValues) < count($keyNames)) { |
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throw new InvalidPrimaryKeyException( |
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"Too few columns for the primary key.\n" . |
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"Please check " . static::class . " initialization or usage.\n" . |
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"Settings described at https://github.com/bluzphp/framework/wiki/Db-Table" |
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); |
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} |
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if (count($keyValues) > count($keyNames)) { |
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throw new InvalidPrimaryKeyException( |
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"Too many columns for the primary key.\n" . |
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"Please check " . static::class . " initialization or usage.\n" . |
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"Settings described at https://github.com/bluzphp/framework/wiki/Db-Table" |
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); |
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} |
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if (array_keys($keyValues)[0] === 0) { |
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// for numerical array |
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$whereList[] = array_combine($keyNames, $keyValues); |
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} else { |
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// for assoc array |
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$whereList[] = $keyValues; |
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} |
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} |
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return static::findWhere(...$whereList); |
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} |
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334
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/** |
335
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* Find row by primary key |
336
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* |
337
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* @param mixed $primaryKey |
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* |
339
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* @return Row |
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*/ |
341
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8 |
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public static function findRow($primaryKey) |
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{ |
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8 |
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if (!$primaryKey) { |
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return null; |
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} |
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$result = static::find($primaryKey); |
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return current($result); |
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} |
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350
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/** |
351
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* Find rows by WHERE |
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* // WHERE alias = 'foo' |
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* Table::findWhere(['alias'=>'foo']); |
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* // WHERE alias = 'foo' OR 'alias' = 'bar' |
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* Table::findWhere(['alias'=>'foo'], ['alias'=>'bar']); |
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* // WHERE (alias = 'foo' AND userId = 2) OR ('alias' = 'bar' AND userId = 4) |
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* Table::findWhere(['alias'=>'foo', 'userId'=> 2], ['alias'=>'foo', 'userId'=>4]); |
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* // WHERE alias IN ('foo', 'bar') |
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* Table::findWhere(['alias'=> ['foo', 'bar']]); |
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* |
361
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* @param mixed ...$where |
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* |
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* @return array |
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* @throws \InvalidArgumentException |
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* @throws Exception\DbException |
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*/ |
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8 |
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public static function findWhere(...$where) |
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{ |
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8 |
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$self = static::getInstance(); |
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8 |
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$whereParams = []; |
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8 |
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if (count($where) === 2 && is_string($where[0])) { |
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$whereClause = $where[0]; |
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$whereParams = (array)$where[1]; |
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} elseif (count($where)) { |
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8 |
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$whereOrTerms = []; |
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8 |
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foreach ($where as $keyValueSets) { |
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8 |
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$whereAndTerms = []; |
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8 |
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foreach ($keyValueSets as $keyName => $keyValue) { |
381
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8 |
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if (is_array($keyValue)) { |
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$keyValue = array_map( |
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function ($value) use ($self) { |
384
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return DbProxy::quote($value); |
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}, |
386
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$keyValue |
387
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); |
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$keyValue = implode(',', $keyValue); |
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$whereAndTerms[] = $self->name . '.' . $keyName . ' IN (' . $keyValue . ')'; |
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8 |
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} elseif (is_null($keyValue)) { |
391
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|
|
$whereAndTerms[] = $self->name . '.' . $keyName . ' IS NULL'; |
392
|
|
|
} else { |
393
|
8 |
|
$whereAndTerms[] = $self->name . '.' . $keyName . ' = ?'; |
394
|
8 |
|
$whereParams[] = $keyValue; |
395
|
|
|
} |
396
|
8 |
|
if (!is_scalar($keyValue) && !is_null($keyValue)) { |
397
|
|
|
throw new \InvalidArgumentException( |
398
|
|
|
"Wrong arguments of method 'findWhere'.\n" . |
399
|
8 |
|
"Please use syntax described at https://github.com/bluzphp/framework/wiki/Db-Table" |
400
|
|
|
); |
401
|
|
|
} |
402
|
|
|
} |
403
|
8 |
|
$whereOrTerms[] = '(' . implode(' AND ', $whereAndTerms) . ')'; |
404
|
|
|
} |
405
|
8 |
|
$whereClause = '(' . implode(' OR ', $whereOrTerms) . ')'; |
406
|
|
|
} else { |
407
|
|
|
throw new DbException( |
408
|
|
|
"Method `Table::findWhere()` can't return all records from table,\n" . |
409
|
|
|
"please use `Table::fetchAll()` instead" |
410
|
|
|
); |
411
|
|
|
} |
412
|
|
|
|
413
|
8 |
|
return static::fetch($self->select . ' WHERE ' . $whereClause, $whereParams); |
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
/** |
417
|
|
|
* Find row by where condition |
418
|
|
|
* |
419
|
|
|
* @param array $whereList |
420
|
|
|
* |
421
|
|
|
* @return Row |
422
|
|
|
*/ |
423
|
|
|
public static function findRowWhere($whereList) |
424
|
|
|
{ |
425
|
|
|
$result = static::findWhere($whereList); |
426
|
|
|
return current($result); |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
/** |
430
|
|
|
* Prepare array for WHERE or SET statements |
431
|
|
|
* |
432
|
|
|
* @param array $where |
433
|
|
|
* |
434
|
|
|
* @return array |
435
|
|
|
* @throws \Bluz\Common\Exception\ConfigurationException |
436
|
|
|
*/ |
437
|
3 |
|
private static function prepareStatement($where) |
438
|
|
|
{ |
439
|
3 |
|
$keys = array_keys($where); |
440
|
3 |
|
foreach ($keys as &$key) { |
441
|
3 |
|
$key = DbProxy::quoteIdentifier($key) . ' = ?'; |
442
|
|
|
} |
443
|
3 |
|
return $keys; |
444
|
|
|
} |
445
|
|
|
|
446
|
|
|
/** |
447
|
|
|
* Prepare Db\Query\Select for current table: |
448
|
|
|
* - predefine "select" section as "*" from current table |
449
|
|
|
* - predefine "from" section as current table name and first letter as alias |
450
|
|
|
* - predefine fetch type |
451
|
|
|
* |
452
|
|
|
* <code> |
453
|
|
|
* // use default select "*" |
454
|
|
|
* $select = Users\Table::select(); |
455
|
|
|
* $arrUsers = $select->where('u.id = ?', $id) |
456
|
|
|
* ->execute(); |
457
|
|
|
* |
458
|
|
|
* // setup custom select "u.id, u.login" |
459
|
|
|
* $select = Users\Table::select(); |
460
|
|
|
* $arrUsers = $select->select('u.id, u.login') |
461
|
|
|
* ->where('u.id = ?', $id) |
462
|
|
|
* ->execute(); |
463
|
|
|
* </code> |
464
|
|
|
* |
465
|
|
|
* @return Query\Select |
466
|
|
|
*/ |
467
|
2 |
|
public static function select() |
468
|
|
|
{ |
469
|
2 |
|
$self = static::getInstance(); |
470
|
|
|
|
471
|
2 |
|
$select = new Query\Select(); |
472
|
2 |
|
$select->select($self->name . '.*') |
|
|
|
|
473
|
2 |
|
->from($self->name, $self->name) |
474
|
2 |
|
->setFetchType($self->rowClass); |
475
|
|
|
|
476
|
2 |
|
return $select; |
477
|
|
|
} |
478
|
|
|
|
479
|
|
|
/** |
480
|
|
|
* Create Row instance |
481
|
|
|
* |
482
|
|
|
* @param array $data |
483
|
|
|
* |
484
|
|
|
* @return Row |
485
|
|
|
*/ |
486
|
2 |
|
public static function create(array $data = []) |
487
|
|
|
{ |
488
|
2 |
|
$rowClass = static::getInstance()->rowClass; |
489
|
|
|
/** @var Row $row */ |
490
|
2 |
|
$row = new $rowClass($data); |
491
|
2 |
|
$row->setTable(static::getInstance()); |
492
|
2 |
|
return $row; |
493
|
|
|
} |
494
|
|
|
|
495
|
|
|
/** |
496
|
|
|
* Insert new record to table and return last insert Id |
497
|
|
|
* |
498
|
|
|
* <code> |
499
|
|
|
* Table::insert(['login' => 'Man', 'email' => '[email protected]']) |
500
|
|
|
* </code> |
501
|
|
|
* |
502
|
|
|
* @param array $data Column-value pairs |
503
|
|
|
* |
504
|
|
|
* @return string|null Primary key or null |
505
|
|
|
* @throws \Bluz\Common\Exception\ConfigurationException |
506
|
|
|
* @throws Exception\DbException |
507
|
|
|
*/ |
508
|
1 |
|
public static function insert(array $data) |
509
|
|
|
{ |
510
|
1 |
|
$self = static::getInstance(); |
511
|
|
|
|
512
|
1 |
|
$data = static::filterColumns($data); |
513
|
|
|
|
514
|
1 |
|
if (!count($data)) { |
515
|
|
|
throw new DbException( |
516
|
|
|
"Invalid field names of table `{$self->name}`. Please check use of `insert()` method" |
517
|
|
|
); |
518
|
|
|
} |
519
|
|
|
|
520
|
1 |
|
$table = DbProxy::quoteIdentifier($self->name); |
521
|
|
|
|
522
|
1 |
|
$sql = "INSERT INTO $table SET " . implode(',', self::prepareStatement($data)); |
523
|
1 |
|
$result = DbProxy::query($sql, array_values($data)); |
524
|
1 |
|
if (!$result) { |
525
|
|
|
return null; |
526
|
|
|
} |
527
|
|
|
|
528
|
|
|
/** |
529
|
|
|
* If a sequence name was not specified for the name parameter, PDO::lastInsertId() |
530
|
|
|
* returns a string representing the row ID of the last row that was inserted into the database. |
531
|
|
|
* |
532
|
|
|
* If a sequence name was specified for the name parameter, PDO::lastInsertId() |
533
|
|
|
* returns a string representing the last value retrieved from the specified sequence object. |
534
|
|
|
* |
535
|
|
|
* If the PDO driver does not support this capability, PDO::lastInsertId() triggers an IM001 SQLSTATE. |
536
|
|
|
*/ |
537
|
1 |
|
return DbProxy::handler()->lastInsertId($self->sequence); |
538
|
|
|
} |
539
|
|
|
|
540
|
|
|
/** |
541
|
|
|
* Updates existing rows |
542
|
|
|
* |
543
|
|
|
* <code> |
544
|
|
|
* Table::insert(['login' => 'Man', 'email' => '[email protected]'], ['id' => 42]) |
545
|
|
|
* </code> |
546
|
|
|
* |
547
|
|
|
* @param array $data Column-value pairs. |
548
|
|
|
* @param array $where An array of SQL WHERE clause(s) |
549
|
|
|
* |
550
|
|
|
* @return integer The number of rows updated |
551
|
|
|
* @throws \Bluz\Common\Exception\ConfigurationException |
552
|
|
|
* @throws Exception\DbException |
553
|
|
|
*/ |
554
|
1 |
|
public static function update(array $data, array $where) |
555
|
|
|
{ |
556
|
1 |
|
if (!count($where)) { |
557
|
|
|
throw new DbException( |
558
|
|
|
"Method `Table::update()` can't update all records in table,\n" . |
559
|
|
|
"please use `Db::query()` instead (of cause if you know what are you doing)" |
560
|
|
|
); |
561
|
|
|
} |
562
|
|
|
|
563
|
1 |
|
$self = static::getInstance(); |
564
|
|
|
|
565
|
1 |
|
$data = static::filterColumns($data); |
566
|
|
|
|
567
|
1 |
|
$where = static::filterColumns($where); |
568
|
|
|
|
569
|
1 |
|
if (!count($data) || !count($where)) { |
570
|
|
|
throw new DbException( |
571
|
|
|
"Invalid field names of table `{$self->name}`. Please check use of `update()` method" |
572
|
|
|
); |
573
|
|
|
} |
574
|
|
|
|
575
|
1 |
|
$table = DbProxy::quoteIdentifier($self->name); |
576
|
|
|
|
577
|
1 |
|
$sql = "UPDATE $table" |
578
|
1 |
|
. " SET " . implode(',', self::prepareStatement($data)) |
579
|
1 |
|
. " WHERE " . implode(' AND ', self::prepareStatement($where)); |
580
|
|
|
|
581
|
1 |
|
return DbProxy::query($sql, array_merge(array_values($data), array_values($where))); |
582
|
|
|
} |
583
|
|
|
|
584
|
|
|
/** |
585
|
|
|
* Deletes existing rows |
586
|
|
|
* |
587
|
|
|
* <code> |
588
|
|
|
* Table::delete(['login' => 'Man']) |
589
|
|
|
* </code> |
590
|
|
|
* |
591
|
|
|
* @param array $where An array of SQL WHERE clause(s) |
592
|
|
|
* |
593
|
|
|
* @return integer The number of rows deleted |
594
|
|
|
* @throws Exception\DbException |
595
|
|
|
*/ |
596
|
1 |
|
public static function delete(array $where) |
597
|
|
|
{ |
598
|
1 |
|
if (!count($where)) { |
599
|
|
|
throw new DbException( |
600
|
|
|
"Method `Table::delete()` can't delete all records in table,\n" . |
601
|
|
|
"please use `Db::query()` instead (of cause if you know what are you doing)" |
602
|
|
|
); |
603
|
|
|
} |
604
|
|
|
|
605
|
1 |
|
$self = static::getInstance(); |
606
|
|
|
|
607
|
1 |
|
$where = static::filterColumns($where); |
608
|
|
|
|
609
|
1 |
|
if (!count($where)) { |
610
|
|
|
throw new DbException( |
611
|
|
|
"Invalid field names of table `{$self->name}`. Please check use of `delete()` method" |
612
|
|
|
); |
613
|
|
|
} |
614
|
|
|
|
615
|
1 |
|
$table = DbProxy::quoteIdentifier($self->name); |
616
|
|
|
|
617
|
1 |
|
$sql = "DELETE FROM $table" |
618
|
1 |
|
. " WHERE " . implode(' AND ', self::prepareStatement($where)); |
619
|
1 |
|
return DbProxy::query($sql, array_values($where)); |
620
|
|
|
} |
621
|
|
|
|
622
|
|
|
/** |
623
|
|
|
* Setup relation "one to one" or "one to many" |
624
|
|
|
* |
625
|
|
|
* @param string $key |
626
|
|
|
* @param string $model |
627
|
|
|
* @param string $foreign |
628
|
|
|
* |
629
|
|
|
* @return void |
630
|
|
|
*/ |
631
|
|
|
public function linkTo($key, $model, $foreign) |
632
|
|
|
{ |
633
|
|
|
Relations::setRelation($this->model, $key, $model, $foreign); |
634
|
|
|
} |
635
|
|
|
|
636
|
|
|
/** |
637
|
|
|
* Setup relation "many to many" |
638
|
|
|
* [table1-key] [table1_key-table2-table3_key] [table3-key] |
639
|
|
|
* |
640
|
|
|
* @param string $model |
641
|
|
|
* @param string $link |
642
|
|
|
* |
643
|
|
|
* @return void |
644
|
|
|
*/ |
645
|
|
|
public function linkToMany($model, $link) |
646
|
|
|
{ |
647
|
|
|
Relations::setRelations($this->model, $model, [$link]); |
648
|
|
|
} |
649
|
|
|
} |
650
|
|
|
|