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<?php |
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/** |
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* |
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* This file is part of Aura for PHP. |
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* |
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* @license http://opensource.org/licenses/bsd-license.php BSD |
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* |
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*/ |
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namespace Aura\SqlQuery\Common; |
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use Aura\SqlQuery\AbstractDmlQuery; |
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/** |
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* |
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* An object for UPDATE queries. |
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* |
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* @package Aura.SqlQuery |
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* |
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*/ |
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class Update extends AbstractDmlQuery implements UpdateInterface |
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{ |
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use WhereTrait; |
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/** |
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* |
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* The table to update. |
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* |
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* @var string |
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* |
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*/ |
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protected $table; |
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/** |
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* |
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* Sets the table to update. |
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* |
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* @param string $table The table to update. |
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* |
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* @return $this |
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* |
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*/ |
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public function table($table) |
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{ |
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$this->table = $this->quoter->quoteName($table); |
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return $this; |
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} |
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/** |
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* |
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* Builds this query object into a string. |
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* |
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* @return string |
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* |
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*/ |
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protected function build() |
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{ |
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return 'UPDATE' |
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. $this->builder->buildFlags($this->flags) |
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. $this->builder->buildTable($this->table) |
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. $this->builder->buildValuesForUpdate($this->col_values) |
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. $this->builder->buildWhere($this->where) |
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. $this->builder->buildOrderBy($this->order_by); |
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} |
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/** |
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* |
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* Sets one column value placeholder; if an optional second parameter is |
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* passed, that value is bound to the placeholder. |
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* |
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* @param string $col The column name. |
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* |
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* @param array $value |
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* |
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* @return $this |
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*/ |
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public function col($col, ...$value) |
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{ |
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return $this->addCol($col, ...$value); |
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} |
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/** |
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* |
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* Sets multiple column value placeholders. If an element is a key-value |
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* pair, the key is treated as the column name and the value is bound to |
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* that column. |
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* |
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* @param array $cols A list of column names, optionally as key-value |
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* pairs where the key is a column name and the value is a bind value for |
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* that column. |
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* |
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* @return $this |
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* |
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*/ |
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public function cols(array $cols) |
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{ |
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return $this->addCols($cols); |
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} |
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/** |
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* |
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* Sets a column value directly; the value will not be escaped, although |
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* fully-qualified identifiers in the value will be quoted. |
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* |
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* @param string $col The column name. |
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* |
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* @param string $value The column value expression. |
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* |
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* @return $this |
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* |
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*/ |
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public function set($col, $value) |
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{ |
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return $this->setCol($col, $value); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: