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<?php
/*
* $Id: Pgsql.php 6731 2009-11-16 18:09:27Z jwage $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* @package Doctrine
* @subpackage DataDict
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Paul Cooper <pgc@ucecom.com>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @version $Revision: 6731 $
* @link www.phpdoctrine.org
* @since 1.0
*/
class Doctrine_DataDict_Pgsql extends Doctrine_DataDict
{
/**
* @param array $reservedKeyWords an array of reserved keywords by pgsql
*/
protected static $reservedKeyWords = array(
'abort',
'absolute',
'access',
'action',
'add',
'after',
'aggregate',
'all',
'alter',
'analyse',
'analyze',
'and',
'any',
'as',
'asc',
'assertion',
'assignment',
'at',
'authorization',
'backward',
'before',
'begin',
'between',
'bigint',
'binary',
'bit',
'boolean',
'both',
'by',
'cache',
'called',
'cascade',
'case',
'cast',
'chain',
'char',
'character',
'characteristics',
'check',
'checkpoint',
'class',
'close',
'cluster',
'coalesce',
'collate',
'column',
'comment',
'commit',
'committed',
'constraint',
'constraints',
'conversion',
'convert',
'copy',
'create',
'createdb',
'createuser',
'cross',
'current_date',
'current_time',
'current_timestamp',
'current_user',
'cursor',
'cycle',
'database',
'day',
'deallocate',
'dec',
'decimal',
'declare',
'default',
'deferrable',
'deferred',
'definer',
'delete',
'delimiter',
'delimiters',
'desc',
'distinct',
'do',
'domain',
'double',
'drop',
'each',
'else',
'encoding',
'encrypted',
'end',
'escape',
'except',
'exclusive',
'execute',
'exists',
'explain',
'external',
'extract',
'false',
'fetch',
'float',
'for',
'force',
'foreign',
'forward',
'freeze',
'from',
'full',
'function',
'get',
'global',
'grant',
'group',
'handler',
'having',
'hour',
'ilike',
'immediate',
'immutable',
'implicit',
'in',
'increment',
'index',
'inherits',
'initially',
'inner',
'inout',
'input',
'insensitive',
'insert',
'instead',
'int',
'integer',
'intersect',
'interval',
'into',
'invoker',
'is',
'isnull',
'isolation',
'join',
'key',
'lancompiler',
'language',
'leading',
'left',
'level',
'like',
'limit',
'listen',
'load',
'local',
'localtime',
'localtimestamp',
'location',
'lock',
'match',
'maxvalue',
'minute',
'minvalue',
'mode',
'month',
'move',
'names',
'national',
'natural',
'nchar',
'new',
'next',
'no',
'nocreatedb',
'nocreateuser',
'none',
'not',
'nothing',
'notify',
'notnull',
'null',
'nullif',
'numeric',
'of',
'off',
'offset',
'oids',
'old',
'on',
'only',
'operator',
'option',
'or',
'order',
'out',
'outer',
'overlaps',
'overlay',
'owner',
'partial',
'password',
'path',
'pendant',
'placing',
'position',
'precision',
'prepare',
'primary',
'prior',
'privileges',
'procedural',
'procedure',
'read',
'real',
'recheck',
'references',
'reindex',
'relative',
'rename',
'replace',
'reset',
'restrict',
'returns',
'revoke',
'right',
'rollback',
'row',
'rule',
'schema',
'scroll',
'second',
'security',
'select',
'sequence',
'serializable',
'session',
'session_user',
'set',
'setof',
'share',
'show',
'similar',
'simple',
'smallint',
'some',
'stable',
'start',
'statement',
'statistics',
'stdin',
'stdout',
'storage',
'strict',
'substring',
'sysid',
'table',
'temp',
'template',
'temporary',
'then',
'time',
'timestamp',
'to',
'toast',
'trailing',
'transaction',
'treat',
'trigger',
'trim',
'true',
'truncate',
'trusted',
'type',
'unencrypted',
'union',
'unique',
'unknown',
'unlisten',
'until',
'update',
'usage',
'user',
'using',
'vacuum',
'valid',
'validator',
'values',
'varchar',
'varying',
'verbose',
'version',
'view',
'volatile',
'when',
'where',
'with',
'without',
'work',
'write',
'year',
'zone'
);
/**
* Obtain DBMS specific SQL code portion needed to declare an text type
* field to be used in statements like CREATE TABLE.
*
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
*
* length
* Integer value that determines the maximum length of the text
* field. If this argument is missing the field should be
* declared to have the longest length allowed by the DBMS.
*
* default
* Text value to be used as default for this field.
*
* notnull
* Boolean flag that indicates whether this field is constrained
* to not be set to null.
*
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
*/
public function getNativeDeclaration(array $field)
{
if ( ! isset($field['type'])) {
throw new Doctrine_DataDict_Exception('Missing column type.');
}
switch ($field['type']) {
case 'enum':
$field['length'] = isset($field['length']) && $field['length'] ? $field['length']:255;
case 'char':
case 'string':
case 'array':
case 'object':
case 'varchar':
case 'gzip':
// TODO: what is the maximum VARCHAR length in pgsql ?
$length = (isset($field['length']) && $field['length'] && $field['length'] < 10000) ? $field['length'] : null;
$fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false;
return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR('.$this->conn->varchar_max_length.')')
: ($length ? 'VARCHAR(' .$length . ')' : 'TEXT');
case 'clob':
return 'TEXT';
case 'blob':
return 'BYTEA';
case 'integer':
case 'int':
if ( ! empty($field['autoincrement'])) {
if ( ! empty($field['length'])) {
$length = $field['length'];
if ($length > 4) {
return 'BIGSERIAL';
}
}
return 'SERIAL';
}
if ( ! empty($field['length'])) {
$length = $field['length'];
if ($length <= 2) {
return 'SMALLINT';
} elseif ($length == 3 || $length == 4) {
return 'INT';
} elseif ($length > 4) {
return 'BIGINT';
}
}
return 'INT';
case 'inet':
return 'INET';
case 'bit':
case 'varbit':
return 'VARBIT';
case 'boolean':
return 'BOOLEAN';
case 'date':
return 'DATE';
case 'time':
return 'TIME';
case 'timestamp':
return 'TIMESTAMP';
case 'float':
case 'double':
return 'FLOAT';
case 'decimal':
$length = !empty($field['length']) ? $field['length'] : 18;
$scale = !empty($field['scale']) ? $field['scale'] : $this->conn->getAttribute(Doctrine_Core::ATTR_DECIMAL_PLACES);
return 'NUMERIC('.$length.','.$scale.')';
}
return $field['type'] . (isset($field['length']) ? '('.$field['length'].')':null);
}
/**
* Maps a native array description of a field to a portable Doctrine datatype and length
*
* @param array $field native field description
*
* @return array containing the various possible types, length, sign, fixed
*/
public function getPortableDeclaration(array $field)
{
$length = (isset($field['length'])) ? $field['length'] : null;
if ($length == '-1' && isset($field['atttypmod'])) {
$length = $field['atttypmod'] - 4;
}
if ((int)$length <= 0) {
$length = null;
}
$type = array();
$unsigned = $fixed = null;
if ( ! isset($field['name'])) {
$field['name'] = '';
}
$dbType = strtolower($field['type']);
switch ($dbType) {
case 'inet':
$type[] = 'inet';
break;
case 'bit':
case 'varbit':
$type[] = 'bit';
break;
case 'smallint':
case 'int2':
$type[] = 'integer';
$unsigned = false;
$length = 2;
if ($length == '2') {
$type[] = 'boolean';
if (preg_match('/^(is|has)/', $field['name'])) {
$type = array_reverse($type);
}
}
break;
case 'int':
case 'int4':
case 'integer':
case 'serial':
case 'serial4':
$type[] = 'integer';
$unsigned = false;
$length = 4;
break;
case 'bigint':
case 'int8':
case 'bigserial':
case 'serial8':
$type[] = 'integer';
$unsigned = false;
$length = 8;
break;
case 'bool':
case 'boolean':
$type[] = 'boolean';
$length = 1;
break;
case 'text':
case 'varchar':
case 'interval':
case '_varchar':
$fixed = false;
case 'tsvector':
case 'unknown':
case 'char':
case 'bpchar':
$type[] = 'string';
if ($length == '1') {
$type[] = 'boolean';
if (preg_match('/^(is|has)/', $field['name'])) {
$type = array_reverse($type);
}
} elseif (strstr($dbType, 'text')) {
$type[] = 'clob';
}
if ($fixed !== false) {
$fixed = true;
}
break;
case 'date':
$type[] = 'date';
$length = null;
break;
case 'datetime':
case 'timestamp':
case 'timetz':
case 'timestamptz':
$type[] = 'timestamp';
$length = null;
break;
case 'time':
$type[] = 'time';
$length = null;
break;
case 'float':
case 'float4':
case 'float8':
case 'double':
case 'double precision':
case 'real':
$type[] = 'float';
break;
case 'decimal':
case 'money':
case 'numeric':
$type[] = 'decimal';
break;
case 'tinyblob':
case 'mediumblob':
case 'longblob':
case 'blob':
case 'bytea':
case 'geometry':
case 'geometrycollection':
case 'point':
case 'multipoint':
case 'linestring':
case 'multilinestring':
case 'polygon':
case 'multipolygon':
$type[] = 'blob';
$length = null;
break;
case 'oid':
$type[] = 'blob';
$type[] = 'clob';
$length = null;
break;
case 'year':
$type[] = 'integer';
$type[] = 'date';
$length = null;
break;
default:
$type[] = $field['type'];
$length = isset($field['length']) ? $field['length']:null;
}
return array('type' => $type,
'length' => $length,
'unsigned' => $unsigned,
'fixed' => $fixed);
}
/**
* Obtain DBMS specific SQL code portion needed to declare an integer type
* field to be used in statements like CREATE TABLE.
*
* @param string $name name the field to be declared.
* @param array $field associative array with the name of the properties
* of the field being declared as array indexes. Currently, the types
* of supported field properties are as follows:
*
* unsigned
* Boolean flag that indicates whether the field should be
* declared as unsigned integer if possible.
*
* default
* Integer value to be used as default for this field.
*
* notnull
* Boolean flag that indicates whether this field is constrained
* to not be set to null.
* @return string DBMS specific SQL code portion that should be used to
* declare the specified field.
*/
public function getIntegerDeclaration($name, $field)
{
/**
if ( ! empty($field['unsigned'])) {
$this->conn->warnings[] = "unsigned integer field \"$name\" is being declared as signed integer";
}
*/
if ( ! empty($field['autoincrement'])) {
$name = $this->conn->quoteIdentifier($name, true);
return $name . ' ' . $this->getNativeDeclaration($field);
}
$default = '';
if (array_key_exists('default', $field)) {
if ($field['default'] === '') {
$field['default'] = empty($field['notnull']) ? null : 0;
}
$default = ' DEFAULT ' . (is_null($field['default'])
? 'NULL'
: $this->conn->quote($field['default'], $field['type']));
}
/**
TODO: is this needed ?
elseif (empty($field['notnull'])) {
$default = ' DEFAULT NULL';
}
*/
$notnull = empty($field['notnull']) ? '' : ' NOT NULL';
$name = $this->conn->quoteIdentifier($name, true);
return $name . ' ' . $this->getNativeDeclaration($field) . $default . $notnull;
}
/**
* parseBoolean
* parses a literal boolean value and returns
* proper sql equivalent
*
* @param string $value boolean value to be parsed
* @return string parsed boolean value
*/
public function parseBoolean($value)
{
return $value;
}
}
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