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<?php |
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namespace Aura\SqlQuery\Common; |
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use Aura\SqlQuery\Exception; |
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class SelectBuilder extends AbstractBuilder |
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{ |
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/** |
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* |
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* Builds the columns clause. |
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* |
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* @return string |
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* |
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* @throws Exception when there are no columns in the SELECT. |
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* |
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*/ |
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public function buildCols($cols) |
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{ |
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if (empty($cols)) { |
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throw new Exception('No columns in the SELECT.'); |
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} |
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return $this->indentCsv($cols); |
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} |
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/** |
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* |
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* Builds the FROM clause. |
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* |
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* @return string |
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* |
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*/ |
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public function buildFrom($from, $join) |
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{ |
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if (empty($from)) { |
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return ''; // not applicable |
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} |
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$refs = array(); |
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foreach ($from as $from_key => $from) { |
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if (isset($join[$from_key])) { |
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$from = array_merge($from, $join[$from_key]); |
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} |
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$refs[] = implode(PHP_EOL, $from); |
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} |
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return PHP_EOL . 'FROM' . $this->indentCsv($refs); |
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} |
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/** |
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* |
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* Builds the GROUP BY clause. |
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* |
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* @return string |
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* |
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*/ |
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public function buildGroupBy($group_by) |
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{ |
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if (empty($group_by)) { |
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return ''; // not applicable |
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} |
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return PHP_EOL . 'GROUP BY' . $this->indentCsv($group_by); |
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} |
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/** |
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* |
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* Builds the HAVING clause. |
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* |
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* @return string |
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* |
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*/ |
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184 |
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public function buildHaving($having) |
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{ |
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if (empty($having)) { |
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return ''; // not applicable |
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} |
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return PHP_EOL . 'HAVING' . $this->indent($having); |
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} |
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/** |
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* |
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* Builds the FOR UPDATE clause. |
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* |
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* @return string |
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* |
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*/ |
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public function buildForUpdate($for_update) |
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{ |
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if (! $for_update) { |
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return ''; // not applicable |
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} |
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return PHP_EOL . 'FOR UPDATE'; |
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} |
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} |
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auraphp /
Aura.SqlQuery
