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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 6/12/14 |
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* Time: 1:28 AM. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Sql\QueryBuilder\Builder\Syntax; |
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use NilPortugues\Sql\QueryBuilder\Builder\GenericBuilder; |
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use NilPortugues\Sql\QueryBuilder\Manipulation\Select; |
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use NilPortugues\Sql\QueryBuilder\Syntax\Column; |
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use NilPortugues\Sql\QueryBuilder\Syntax\SyntaxFactory; |
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/** |
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* Class ColumnWriter. |
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*/ |
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class ColumnWriter |
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{ |
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/** |
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* @var \NilPortugues\Sql\QueryBuilder\Builder\GenericBuilder |
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*/ |
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private $writer; |
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/** |
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* @var PlaceholderWriter |
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*/ |
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private $placeholderWriter; |
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/** |
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* @param GenericBuilder $writer |
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* @param PlaceholderWriter $placeholderWriter |
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*/ |
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public function __construct(GenericBuilder $writer, PlaceholderWriter $placeholderWriter) |
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{ |
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$this->writer = $writer; |
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$this->placeholderWriter = $placeholderWriter; |
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} |
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/** |
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* @param Select $select |
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* |
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* @return array |
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*/ |
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public function writeSelectsAsColumns(Select $select) |
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{ |
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$selectAsColumns = $select->getColumnSelects(); |
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if (!empty($selectAsColumns)) { |
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$selectWriter = WriterFactory::createSelectWriter($this->writer, $this->placeholderWriter); |
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$selectAsColumns = $this->selectColumnToQuery($selectAsColumns, $selectWriter); |
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} |
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return $selectAsColumns; |
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} |
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/** |
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* @param array $selectAsColumns |
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* @param SelectWriter $selectWriter |
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* |
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* @return mixed |
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*/ |
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protected function selectColumnToQuery(array &$selectAsColumns, SelectWriter $selectWriter) |
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{ |
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\array_walk( |
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$selectAsColumns, |
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function (&$column) use (&$selectWriter) { |
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$keys = \array_keys($column); |
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$key = \array_pop($keys); |
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$values = \array_values($column); |
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$value = $values[0]; |
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if (\is_numeric($key)) { |
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/* @var Column $value */ |
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$key = $this->writer->writeTableName($value->getTable()); |
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} |
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$column = $selectWriter->selectToColumn($key, $value); |
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} |
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); |
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return $selectAsColumns; |
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} |
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/** |
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* @param Select $select |
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* |
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* @return array |
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*/ |
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public function writeValueAsColumns(Select $select) |
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{ |
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$valueAsColumns = $select->getColumnValues(); |
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$newColumns = []; |
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if (!empty($valueAsColumns)) { |
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foreach ($valueAsColumns as $alias => $value) { |
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$value = $this->writer->writePlaceholderValue($value); |
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$newValueColumn = array($alias => $value); |
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$newColumns[] = SyntaxFactory::createColumn($newValueColumn, null); |
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} |
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} |
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return $newColumns; |
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} |
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/** |
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* @param Select $select |
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* |
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* @return array |
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*/ |
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public function writeFuncAsColumns(Select $select) |
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{ |
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$funcAsColumns = $select->getColumnFuncs(); |
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$newColumns = []; |
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if (!empty($funcAsColumns)) { |
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foreach ($funcAsColumns as $alias => $value) { |
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$funcName = $value['func']; |
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$funcArgs = (!empty($value['args'])) ? '('.implode(', ', $value['args']).')' : ''; |
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$newFuncColumn = array($alias => $funcName.$funcArgs); |
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$newColumns[] = SyntaxFactory::createColumn($newFuncColumn, null); |
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} |
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} |
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return $newColumns; |
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} |
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/** |
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* @param Column $column |
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* |
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* @return string |
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*/ |
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public function writeColumnWithAlias(Column $column) |
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{ |
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if (($alias = $column->getAlias()) && !$column->isAll()) { |
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return $this->writeColumn($column).' AS '.$this->writer->writeColumnAlias($alias); |
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} |
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return $this->writeColumn($column); |
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} |
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/** |
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* @param Column $column |
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* |
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* @return string |
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*/ |
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public function writeColumn(Column $column) |
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{ |
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$alias = $column->getTable()->getAlias(); |
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$table = ($alias) ? $this->writer->writeTableAlias($alias) : $this->writer->writeTable($column->getTable()); |
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$columnString = (empty($table)) ? '' : "{$table}."; |
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$columnString .= $this->writer->writeColumnName($column); |
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return $columnString; |
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} |
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} |
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