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<?php |
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namespace System; |
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use PDO; |
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use PDOException; |
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use Exception; |
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class Database |
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{ |
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private $app; |
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private static $connection; |
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private $table; |
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private $rows; |
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private $lastId; |
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private $data = []; |
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private $bindings = []; |
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private $selects = []; |
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private $joins = []; |
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private $wheres = []; |
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private $havings = []; |
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private $orderBy = []; |
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private $limit; |
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private $offset; |
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private $groupBy = []; |
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public function __construct(Application $app) |
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{ |
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$this->app = $app; |
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if (!$this->isConnected()) { |
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$this->connect(); |
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} |
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} |
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private function isConnected() |
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{ |
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return self::$connection instanceof PDO; |
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} |
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private function connect() |
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{ |
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try { |
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self::$connection = new PDO( |
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$_ENV['DB_CONNECTION'] . ':host=' . |
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$_ENV['DB_HOST'] . ';dbname=' . |
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$_ENV['DB_DATABASE'], |
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$_ENV['DB_USERNAME'], |
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$_ENV['DB_PASSWORD'] |
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); |
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self::$connection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
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self::$connection->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_OBJ); |
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self::$connection->exec('SET NAMES utf8'); |
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} catch (PDOException $e) { |
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throw new Exception($e->getMessage()); |
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} |
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} |
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public function connection() |
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{ |
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return self::$connection; |
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} |
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public function table($table) |
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{ |
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$this->table = $table; |
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return $this; |
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} |
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public function select(...$select) |
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{ |
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$this->selects = array_merge($this->selects, $select); |
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return $this; |
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} |
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public function join() |
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{ |
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$args = func_get_args()[0]; |
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$sql = null; |
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foreach ($args as $join) { |
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$sql[] = $join[0] . ' ON ' . $this->table . '.' . $join[1] . ' = ' . $join[0] . '.' . $join[2]; |
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} |
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$this->joins = $sql; |
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return $this; |
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} |
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public function where(...$bindings) |
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{ |
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$sql = array_shift($bindings); |
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if (is_array($bindings[0])) { |
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$bindings = $bindings[0]; |
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} |
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$this->addToBindings($bindings); |
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$this->wheres[] = $sql; |
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return $this; |
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} |
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public function having() |
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{ |
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$bindings = func_get_args(); |
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$sql = array_shift($bindings); |
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$this->addToBindings($bindings); |
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$this->havings[] = $sql; |
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return $this; |
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} |
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public function groupBy(...$arguments) |
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{ |
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$this->groupBy = $arguments; |
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return $this; |
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} |
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public function limit($limit, $offset = 0) |
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{ |
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$this->limit = $limit; |
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$this->offset = $offset; |
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return $this; |
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} |
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public function rows() |
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{ |
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return $this->rows; |
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} |
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public function orderBy($orderBy, $sort = 'ASC') |
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{ |
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$this->orderBy = [$orderBy, $sort]; |
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return $this; |
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} |
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View Code Duplication |
public function fetch($table = null) |
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{ |
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if ($table) { |
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$this->table($table); |
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} |
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$sql = $this->fetchStatment(); |
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$sql = $this->fetchStatmentExtra($sql); |
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$query = $this->query($sql, $this->bindings); |
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$result = $query->fetch(); |
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$this->rows = $query->rowCount(); |
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return $result; |
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} |
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View Code Duplication |
public function fetchAll($table = null) |
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{ |
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if ($table) { |
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$this->table($table); |
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} |
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$sql = $this->fetchStatment(); |
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$sql = $this->fetchStatmentExtra($sql); |
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$query = $this->query($sql, $this->bindings); |
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$results = $query->fetchall(); |
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$this->rows = $query->rowCount(); |
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return $results; |
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} |
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private function fetchStatment() |
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{ |
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$sql = 'SELECT '; |
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$sql .= $this->selects ? implode(', ', $this->selects) : '*'; |
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$sql .= ' FROM ' . $this->table . ' '; |
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if (!empty($this->joins)) { |
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foreach ($this->joins as $join) { |
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$sql .= 'LEFT JOIN ' . $join . ' '; |
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} |
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} |
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if (!empty($this->wheres)) { |
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$sql .= ' WHERE ' . implode(' ', $this->wheres); |
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} |
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return $sql; |
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} |
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private function fetchStatmentExtra($sql) |
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{ |
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if (!empty($this->havings)) { |
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$sql .= ' HAVING ' . implode(' ', $this->havings) . ' '; |
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} |
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if (!empty($this->orderBy)) { |
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$sql .= ' ORDER BY ' . implode(' ', $this->orderBy); |
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} |
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if ($this->limit) { |
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$sql .= ' LIMIT ' . $this->limit; |
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} |
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if ($this->offset) { |
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$sql .= ' OFFSET ' . $this->offset; |
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} |
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if (!empty($this->groupBy)) { |
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$sql .= ' GROUP BY ' . implode(' ', $this->groupBy); |
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} |
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return $sql; |
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} |
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public function lastId() |
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{ |
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return $this->lastId; |
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} |
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public function from($table) |
253
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{ |
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return $this->table($table); |
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} |
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public function data($key, $value = null) |
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{ |
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if (is_array($key)) { |
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$this->data = array_merge($this->data, $key); |
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$this->addToBindings($key); |
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} else { |
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$this->data[$key] = $value; |
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$this->addToBindings($value); |
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} |
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return $this; |
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} |
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public function insert($table = null) |
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{ |
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if ($table) { |
275
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$this->table($table); |
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} |
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$sql = 'INSERT INTO ' . $this->table . ' SET '; |
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$sql .= $this->setField(); |
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$this->query($sql, $this->bindings); |
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$this->lastId = $this->connection()->lastInsertId(); |
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return $this; |
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} |
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View Code Duplication |
public function update($table = null) |
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{ |
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if ($table) { |
291
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$this->table($table); |
292
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} |
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294
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$sql = 'UPDATE ' . $this->table . ' SET '; |
295
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$sql .= $this->setField(); |
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297
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if (!empty($this->wheres)) { |
298
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$sql .= ' WHERE ' . implode('', $this->wheres); |
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} |
300
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301
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$this->query($sql, $this->bindings); |
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return $this; |
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} |
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View Code Duplication |
public function delete($table = null) |
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307
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{ |
308
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if ($table) { |
309
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$this->table($table); |
310
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} |
311
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312
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$sql = 'DELETE FROM ' . $this->table . ' '; |
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314
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if (!empty($this->wheres)) { |
315
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$sql .= ' WHERE ' . implode('', $this->wheres); |
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} |
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$this->query($sql, $this->bindings); |
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320
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return $this; |
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} |
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323
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private function setField() |
324
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{ |
325
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$sql = ''; |
326
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327
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foreach ($this->data as $key => $value) { |
328
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$sql .= '`' . $key . '` = ? ,'; |
329
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} |
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331
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$sql = rtrim($sql, ' ,'); |
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333
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return $sql; |
334
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} |
335
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336
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private function addToBindings($value) |
337
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{ |
338
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if (is_array($value)) { |
339
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$this->bindings = array_merge($this->bindings, array_values($value)); |
340
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} else { |
341
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$this->bindings[] = $value; |
342
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} |
343
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} |
344
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345
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public function query(...$bindings) |
346
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{ |
347
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$sql = array_shift($bindings); |
348
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349
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if (count($bindings) == 1 and is_array($bindings[0])) { |
350
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$bindings = $bindings[0]; |
351
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} |
352
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353
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try { |
354
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$query = $this->connection()->prepare($sql); |
355
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356
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foreach ($bindings as $key => $value) { |
357
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if ($value === null) { |
358
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$query->bindValue($key + 1, $value); |
359
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} else { |
360
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$query->bindValue($key + 1, _e($value)); |
361
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} |
362
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} |
363
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364
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$query->execute(); |
365
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366
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$this->reset(); |
367
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368
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return $query; |
369
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} catch (PDOException $e) { |
370
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throw new Exception($e->getMessage()); |
371
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} |
372
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} |
373
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374
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private function reset() |
375
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{ |
376
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$this->table = null; |
377
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378
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$this->rows = 0; |
379
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380
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$this->data = []; |
381
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382
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$this->bindings = []; |
383
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384
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$this->selects = []; |
385
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386
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$this->joins = []; |
387
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388
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$this->wheres = []; |
389
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390
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$this->havings = []; |
391
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392
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$this->orderBy = []; |
393
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394
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$this->limit = null; |
395
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|
396
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$this->offset = 0; |
397
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|
398
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$this->groupBy = []; |
399
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} |
400
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} |
401
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Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..