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 *
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 *
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 * An open source application development framework for PHP
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 * An open source application development framework for PHP
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 *
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 *
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 * This content is released under the MIT License (MIT)
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 * This content is released under the MIT License (MIT)
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 *
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 *
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 * Copyright (c) 2014 - 2018, British Columbia Institute of Technology
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 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology
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 *
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * THE SOFTWARE.
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 * THE SOFTWARE.
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 *
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 *
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 * @package	CodeIgniter
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 * @package	CodeIgniter
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 * @author	EllisLab Dev Team
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 * @author	EllisLab Dev Team
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 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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 * @copyright	Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
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 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
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 * @license	http://opensource.org/licenses/MIT	MIT License
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 * @license	http://opensource.org/licenses/MIT	MIT License
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 * @link	https://codeigniter.com
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 * @link	https://codeigniter.com
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 * @since	Version 1.0.0
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 * @since	Version 1.0.0
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 * @filesource
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 * @filesource
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 */
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 */
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		}
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		}
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		return 'UPDATE '.$table.' SET '.implode(', ', $valstr)
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		return 'UPDATE '.$table.' SET '.implode(', ', $valstr)
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			.$this->_compile_wh('qb_where')
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			.$this->_compile_wh('qb_where')
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			.$this->_compile_order_by()
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			.$this->_compile_order_by()
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			.($this->qb_limit !== FALSE ? ' LIMIT '.$this->qb_limit : '');
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			.($this->qb_limit ? ' LIMIT '.$this->qb_limit : '');
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	}
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	}
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				if ($field_exists === FALSE)
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				if ($field_exists === FALSE)
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				{
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				{
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					$i++;
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					$i++;
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				}
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				}
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				// dbprefix may've already been applied, with or without the identifier escaped
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				$ec = '(?<ec>'.preg_quote(is_array($this->_escape_char) ? $this->_escape_char[0] : $this->_escape_char).')?';
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				isset($ec[0]) && $ec .= '?'; // Just in case someone has disabled escaping by forcing an empty escape character
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				// Verify table prefix and replace if necessary
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				// Verify table prefix and replace if necessary
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				if ($this->swap_pre !== '' && preg_match('#^'.$ec.preg_quote($this->swap_pre).'#', $parts[$i]))
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				if ($this->swap_pre !== '' && strpos($parts[$i], $this->swap_pre) === 0)
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				{
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				{
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					$parts[$i] = preg_replace('#^'.$ec.preg_quote($this->swap_pre).'(\S+?)#', '\\1'.$this->dbprefix.'\\2', $parts[$i]);
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					$parts[$i] = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $parts[$i]);
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				}
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				}
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				// We only add the table prefix if it does not already exist
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				// We only add the table prefix if it does not already exist
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				else
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				elseif (strpos($parts[$i], $this->dbprefix) !== 0)
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				{
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				{
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					preg_match('#^'.$ec.preg_quote($this->dbprefix).'#', $parts[$i]) OR $parts[$i] = $this->dbprefix.$parts[$i];
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					$parts[$i] = $this->dbprefix.$parts[$i];
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				}
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				}
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				// Put the parts back together
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				// Put the parts back together