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Revision 68 Revision 2049
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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 - 2016, 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 - 2016, 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 1.4.1
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 * @since	Version 1.4.1
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 * @filesource
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 * @filesource
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 */
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 */
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				if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name']))
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				if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name']))
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				{
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				{
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					$sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name'])
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					$sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name'])
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						.' '.$this->db->escape_identifiers($field[$i]['new_name']);
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						.' '.$this->db->escape_identifiers($field[$i]['new_name']);
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				}
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				}
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				$field[$i] = "\n\t".$field[$i]['_literal'];
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			}
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			}
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		}
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		}
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		$sql .= ' '.$alter_type.' ';
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		$sql .= ' '.$alter_type.' ';
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		$sql .= (count($field) === 1)
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		$sql .= (count($field) === 1)
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				? $field[0]
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				? $field[0]
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				: '('.implode(',', $field).')';
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				: '('.implode(',', $field).')';
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		// RENAME COLUMN must be executed after MODIFY
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		// RENAME COLUMN must be executed after MODIFY
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		array_unshift($sqls, $sql);
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		array_unshift($sqls, $sql);
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		return $sql;
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		return $sqls;
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	}
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	}