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<?php |
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namespace ClickHouseDB\Query; |
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use ClickHouseDB\Exception\QueryException; |
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class WhereInFile |
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{ |
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/** |
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* |
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*/ |
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const FORMAT_TabSeparated = 'TabSeparated'; |
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const FORMAT_TabSeparatedWithNames = 'TabSeparatedWithNames'; |
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const FORMAT_CSV = 'CSV'; |
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/** |
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* @var array |
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*/ |
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private $_files = []; |
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/** |
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* WhereInFile constructor. |
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*/ |
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public function __construct() {} |
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/** |
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* @param string $file_name |
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* @param string $table_name |
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* @param string $structure |
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* @param string $format |
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*/ |
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public function attachFile($file_name, $table_name, $structure, $format = 'CSV') |
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{ |
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if (!is_readable($file_name)) { |
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throw new QueryException('Can`t read file: ' . $file_name); |
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} |
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$this->_files[$table_name] = [ |
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'filename' => $file_name, |
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'structure' => $structure, |
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'format' => $format |
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]; |
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} |
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/** |
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* @return int |
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*/ |
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public function size() |
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{ |
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return sizeof($this->_files); |
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} |
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/** |
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* @return array |
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*/ |
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public function fetchFiles() |
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{ |
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$out = []; |
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foreach ($this->_files as $table => $data) { |
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$out[$table] = realpath($data['filename']); |
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} |
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return $out; |
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} |
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/** |
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* @param string $table |
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* @return string |
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*/ |
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public function fetchStructure($table) |
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{ |
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$structure = $this->_files[$table]['structure']; |
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$out = []; |
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foreach ($structure as $name => $type) { |
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$out[] = $name . ' ' . $type; |
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} |
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return implode(',', $out); |
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} |
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/** |
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* @return array |
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*/ |
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public function fetchUrlParams() |
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{ |
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$out = []; |
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foreach ($this->_files as $table => $data) { |
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$out[$table . '_structure'] = $this->fetchStructure($table); |
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$out[$table . '_format'] = $data['format']; |
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} |
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return $out; |
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} |
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} |
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smi2 /
phpClickHouse
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