/lenasys/trunk : contents of codeigniter/system/database/drivers/postgre/postgre

: (revision 20.1.1)

To get this branch, use:

bzr branch
http://gegoxaren.bato24.eu/bzr/lenasys/trunk

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * Postgre Forge Class
 *
 * @category	Database
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/database/
 */
class CI_DB_postgre_forge extends CI_DB_forge {

	/**
	 * Create database
	 *
	 * @access	private
	 * @param	string	the database name
	 * @return	bool
	 */
	function _create_database($name)
	{
		return "CREATE DATABASE ".$name;
	}

	// --------------------------------------------------------------------

	/**
	 * Drop database
	 *
	 * @access	private
	 * @param	string	the database name
	 * @return	bool
	 */
	function _drop_database($name)
	{
		return "DROP DATABASE ".$name;
	}

	// --------------------------------------------------------------------

	/**
	 * Create Table
	 *
	 * @access	private
	 * @param	string	the table name
	 * @param	array	the fields
	 * @param	mixed	primary key(s)
	 * @param	mixed	key(s)
	 * @param	boolean	should 'IF NOT EXISTS' be added to the SQL
	 * @return	bool
	 */
	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
	{
		$sql = 'CREATE TABLE ';

		if ($if_not_exists === TRUE)
		{
			if ($this->db->table_exists($table))
			{
				return "SELECT * FROM $table"; // Needs to return innocous but valid SQL statement
			}
		}

		$sql .= $this->db->_escape_identifiers($table)." (";
		$current_field_count = 0;

		foreach ($fields as $field=>$attributes)
		{
			// Numeric field names aren't allowed in databases, so if the key is
			// numeric, we know it was assigned by PHP and the developer manually
			// entered the field information, so we'll simply add it to the list
			if (is_numeric($field))
			{
				$sql .= "\n\t$attributes";
			}
			else
			{
				$attributes = array_change_key_case($attributes, CASE_UPPER);

				$sql .= "\n\t".$this->db->_protect_identifiers($field);

				$is_unsigned = (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE);

				// Convert datatypes to be PostgreSQL-compatible
				switch (strtoupper($attributes['TYPE']))
				{
					case 'TINYINT':
						$attributes['TYPE'] = 'SMALLINT';
						break;
					case 'SMALLINT':
						$attributes['TYPE'] = ($is_unsigned) ? 'INTEGER' : 'SMALLINT';
						break;
					case 'MEDIUMINT':
						$attributes['TYPE'] = 'INTEGER';
						break;
					case 'INT':
						$attributes['TYPE'] = ($is_unsigned) ? 'BIGINT' : 'INTEGER';
						break;
					case 'BIGINT':
						$attributes['TYPE'] = ($is_unsigned) ? 'NUMERIC' : 'BIGINT';
						break;
					case 'DOUBLE':
						$attributes['TYPE'] = 'DOUBLE PRECISION';
						break;
					case 'DATETIME':
						$attributes['TYPE'] = 'TIMESTAMP';
						break;
					case 'LONGTEXT':
						$attributes['TYPE'] = 'TEXT';
						break;
					case 'BLOB':
						$attributes['TYPE'] = 'BYTEA';
						break;
				}

				// If this is an auto-incrementing primary key, use the serial data type instead
				if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes) 
					&& $attributes['AUTO_INCREMENT'] === TRUE)
				{
					$sql .= ' SERIAL';
				}
				else
				{
					$sql .=  ' '.$attributes['TYPE'];
				}

				// Modified to prevent constraints with integer data types
				if (array_key_exists('CONSTRAINT', $attributes) && strpos($attributes['TYPE'], 'INT') === false)
				{
					$sql .= '('.$attributes['CONSTRAINT'].')';
				}

				if (array_key_exists('DEFAULT', $attributes))
				{
					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
				}

				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
				{
					$sql .= ' NULL';
				}
				else
				{
					$sql .= ' NOT NULL';
				}

				// Added new attribute to create unqite fields. Also works with MySQL
				if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE)
				{
					$sql .= ' UNIQUE';
				}
			}

			// don't add a comma on the end of the last field
			if (++$current_field_count < count($fields))
			{
				$sql .= ',';
			}
		}

		if (count($primary_keys) > 0)
		{
			// Something seems to break when passing an array to _protect_identifiers()
			foreach ($primary_keys as $index => $key)
			{
				$primary_keys[$index] = $this->db->_protect_identifiers($key);
			}

			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
		}

		$sql .= "\n);";

		if (is_array($keys) && count($keys) > 0)
		{
			foreach ($keys as $key)
			{
				if (is_array($key))
				{
					$key = $this->db->_protect_identifiers($key);
				}
				else
				{
					$key = array($this->db->_protect_identifiers($key));
				}

				foreach ($key as $field)
				{
					$sql .= "CREATE INDEX " . $table . "_" . str_replace(array('"', "'"), '', $field) . "_index ON $table ($field); ";
				}
			}
		}

		return $sql;
	}

	// --------------------------------------------------------------------

	/**
	 * Drop Table
	 *
	 * @access    private
	 * @return    bool
	 */
	function _drop_table($table)
	{
		return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table)." CASCADE";
	}

	// --------------------------------------------------------------------

	/**
	 * Alter table query
	 *
	 * Generates a platform-specific query so that a table can be altered
	 * Called by add_column(), drop_column(), and column_alter(),
	 *
	 * @access	private
	 * @param	string	the ALTER type (ADD, DROP, CHANGE)
	 * @param	string	the column name
	 * @param	string	the table name
	 * @param	string	the column definition
	 * @param	string	the default value
	 * @param	boolean	should 'NOT NULL' be added
	 * @param	string	the field after which we should add the new field
	 * @return	object
	 */
	function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
	{
		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ".$this->db->_protect_identifiers($column_name);

		// DROP has everything it needs now.
		if ($alter_type == 'DROP')
		{
			return $sql;
		}

		$sql .= " $column_definition";

		if ($default_value != '')
		{
			$sql .= " DEFAULT \"$default_value\"";
		}

		if ($null === NULL)
		{
			$sql .= ' NULL';
		}
		else
		{
			$sql .= ' NOT NULL';
		}

		if ($after_field != '')
		{
			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
		}

		return $sql;

	}

	// --------------------------------------------------------------------

	/**
	 * Rename a table
	 *
	 * Generates a platform-specific query so that a table can be renamed
	 *
	 * @access	private
	 * @param	string	the old table name
	 * @param	string	the new table name
	 * @return	string
	 */
	function _rename_table($table_name, $new_table_name)
	{
		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name);
		return $sql;
	}


}

/* End of file postgre_forge.php */
/* Location: ./system/database/drivers/postgre/postgre_forge.php */

20.1.1 by galaxyAbstractor * Added an simple admin panel to the codeviewer-cmssy stuff	1	<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
	2	/**
	3	* CodeIgniter
	4	*
	5	* An open source application development framework for PHP 5.1.6 or newer
	6	*
	7	* @package CodeIgniter
	8	* @author ExpressionEngine Dev Team
	9	* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
	10	* @license http://codeigniter.com/user_guide/license.html
	11	* @link http://codeigniter.com
	12	* @since Version 1.0
	13	* @filesource
	14	*/
	15
	16	// ------------------------------------------------------------------------
	17
	18	/**
	19	* Postgre Forge Class
	20	*
	21	* @category Database
	22	* @author ExpressionEngine Dev Team
	23	* @link http://codeigniter.com/user_guide/database/
	24	*/
	25	class CI_DB_postgre_forge extends CI_DB_forge {
	26
	27	/**
	28	* Create database
	29	*
	30	* @access private
	31	* @param string the database name
	32	* @return bool
	33	*/
	34	function _create_database($name)
	35	{
	36	return "CREATE DATABASE ".$name;
	37	}
	38
	39	// --------------------------------------------------------------------
	40
	41	/**
	42	* Drop database
	43	*
	44	* @access private
	45	* @param string the database name
	46	* @return bool
	47	*/
	48	function _drop_database($name)
	49	{
	50	return "DROP DATABASE ".$name;
	51	}
	52
	53	// --------------------------------------------------------------------
	54
	55	/**
	56	* Create Table
	57	*
	58	* @access private
	59	* @param string the table name
	60	* @param array the fields
	61	* @param mixed primary key(s)
	62	* @param mixed key(s)
	63	* @param boolean should 'IF NOT EXISTS' be added to the SQL
	64	* @return bool
65	*/
66	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
67	{
68	$sql = 'CREATE TABLE ';
69
70	if ($if_not_exists === TRUE)
71	{
72	if ($this->db->table_exists($table))
73	{
74	return "SELECT * FROM $table"; // Needs to return innocous but valid SQL statement
75	}
76	}
77
78	$sql .= $this->db->_escape_identifiers($table)." (";
79	$current_field_count = 0;
80
81	foreach ($fields as $field=>$attributes)
82	{
83	// Numeric field names aren't allowed in databases, so if the key is
84	// numeric, we know it was assigned by PHP and the developer manually
85	// entered the field information, so we'll simply add it to the list
86	if (is_numeric($field))
87	{
88	$sql .= "\n\t$attributes";
89	}
90	else
91	{
92	$attributes = array_change_key_case($attributes, CASE_UPPER);
93
94	$sql .= "\n\t".$this->db->_protect_identifiers($field);
95
96	$is_unsigned = (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE);
97
98	// Convert datatypes to be PostgreSQL-compatible
99	switch (strtoupper($attributes['TYPE']))
100	{
101	case 'TINYINT':
102	$attributes['TYPE'] = 'SMALLINT';
103	break;
104	case 'SMALLINT':
105	$attributes['TYPE'] = ($is_unsigned) ? 'INTEGER' : 'SMALLINT';
106	break;
107	case 'MEDIUMINT':
108	$attributes['TYPE'] = 'INTEGER';
109	break;
110	case 'INT':
111	$attributes['TYPE'] = ($is_unsigned) ? 'BIGINT' : 'INTEGER';
112	break;
113	case 'BIGINT':
114	$attributes['TYPE'] = ($is_unsigned) ? 'NUMERIC' : 'BIGINT';
115	break;
116	case 'DOUBLE':
117	$attributes['TYPE'] = 'DOUBLE PRECISION';
118	break;
119	case 'DATETIME':
120	$attributes['TYPE'] = 'TIMESTAMP';
121	break;
122	case 'LONGTEXT':
123	$attributes['TYPE'] = 'TEXT';
124	break;
125	case 'BLOB':
126	$attributes['TYPE'] = 'BYTEA';
127	break;
128	}
129
130	// If this is an auto-incrementing primary key, use the serial data type instead
131	if (in_array($field, $primary_keys) && array_key_exists('AUTO_INCREMENT', $attributes)
132	&& $attributes['AUTO_INCREMENT'] === TRUE)
133	{
134	$sql .= ' SERIAL';
135	}
136	else
137	{
138	$sql .= ' '.$attributes['TYPE'];
139	}
140
141	// Modified to prevent constraints with integer data types
142	if (array_key_exists('CONSTRAINT', $attributes) && strpos($attributes['TYPE'], 'INT') === false)
143	{
144	$sql .= '('.$attributes['CONSTRAINT'].')';
145	}
146
147	if (array_key_exists('DEFAULT', $attributes))
148	{
149	$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
150	}
151
152	if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
153	{
154	$sql .= ' NULL';
155	}
156	else
157	{
158	$sql .= ' NOT NULL';
159	}
160
161	// Added new attribute to create unqite fields. Also works with MySQL
162	if (array_key_exists('UNIQUE', $attributes) && $attributes['UNIQUE'] === TRUE)
163	{
164	$sql .= ' UNIQUE';
165	}
166	}
167
168	// don't add a comma on the end of the last field
169	if (++$current_field_count < count($fields))
170	{
171	$sql .= ',';
172	}
173	}
174
175	if (count($primary_keys) > 0)
176	{
177	// Something seems to break when passing an array to _protect_identifiers()
178	foreach ($primary_keys as $index => $key)
179	{
180	$primary_keys[$index] = $this->db->_protect_identifiers($key);
181	}
182
183	$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
184	}
185
186	$sql .= "\n);";
187
188	if (is_array($keys) && count($keys) > 0)
189	{
190	foreach ($keys as $key)
191	{
192	if (is_array($key))
193	{
194	$key = $this->db->_protect_identifiers($key);
195	}
196	else
197	{
198	$key = array($this->db->_protect_identifiers($key));
199	}
200
201	foreach ($key as $field)
202	{
203	$sql .= "CREATE INDEX " . $table . "_" . str_replace(array('"', "'"), '', $field) . "_index ON $table ($field); ";
204	}
205	}
206	}
207
208	return $sql;
209	}
210
211	// --------------------------------------------------------------------
212
213	/**
214	* Drop Table
215	*
216	* @access private
217	* @return bool
218	*/
219	function _drop_table($table)
220	{
221	return "DROP TABLE IF EXISTS ".$this->db->_escape_identifiers($table)." CASCADE";
222	}
223
224	// --------------------------------------------------------------------
225
226	/**
227	* Alter table query
228	*
229	* Generates a platform-specific query so that a table can be altered
230	* Called by add_column(), drop_column(), and column_alter(),
231	*
232	* @access private
233	* @param string the ALTER type (ADD, DROP, CHANGE)
234	* @param string the column name
235	* @param string the table name
236	* @param string the column definition
237	* @param string the default value
238	* @param boolean should 'NOT NULL' be added
239	* @param string the field after which we should add the new field
240	* @return object
241	*/
242	function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
243	{
244	$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ".$this->db->_protect_identifiers($column_name);
245
246	// DROP has everything it needs now.
247	if ($alter_type == 'DROP')
248	{
249	return $sql;
250	}
251
252	$sql .= " $column_definition";
253
254	if ($default_value != '')
255	{
256	$sql .= " DEFAULT \"$default_value\"";
257	}
258
259	if ($null === NULL)
260	{
261	$sql .= ' NULL';
262	}
263	else
264	{
265	$sql .= ' NOT NULL';
266	}
267
268	if ($after_field != '')
269	{
270	$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
271	}
272
273	return $sql;
274
275	}
276
277	// --------------------------------------------------------------------
278
279	/**
280	* Rename a table
281	*
282	* Generates a platform-specific query so that a table can be renamed
283	*
284	* @access private
285	* @param string the old table name
286	* @param string the new table name
287	* @return string
288	*/
289	function _rename_table($table_name, $new_table_name)
290	{
291	$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name);
292	return $sql;
293	}
294
295
296	}
297
298	/* End of file postgre_forge.php */
299	/* Location: ./system/database/drivers/postgre/postgre_forge.php */