974 lines
30 KiB
PHP
974 lines
30 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\DBAL\Platforms;
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/**
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* PostgreSqlPlatform.
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*
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* @since 2.0
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* @author Roman Borschel <roman@code-factory.org>
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* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
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*/
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class PostgreSqlPlatform extends AbstractPlatform
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{
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/**
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* Constructor.
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* Creates a new PostgreSqlPlatform.
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*/
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public function __construct()
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{
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parent::__construct();
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}
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/**
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* Obtain DBMS specific SQL code portion needed to declare an text type
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* field to be used in statements like CREATE TABLE.
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*
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* length
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* Integer value that determines the maximum length of the text
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* field. If this argument is missing the field should be
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* declared to have the longest length allowed by the DBMS.
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*
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* default
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* Text value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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*
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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* @override
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*/
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public function getNativeDeclaration(array $field)
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{
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if ( ! isset($field['type'])) {
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throw DoctrineException::updateMe('Missing column type.');
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}
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switch ($field['type']) {
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case 'char':
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case 'string':
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case 'array':
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case 'object':
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case 'varchar':
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case 'gzip':
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// TODO: what is the maximum VARCHAR length in pgsql ?
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$length = (isset($field['length']) && $field['length'] && $field['length'] < 10000) ? $field['length'] : null;
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$fixed = ((isset($field['fixed']) && $field['fixed']) || $field['type'] == 'char') ? true : false;
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return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR('.$this->conn->options['default_text_field_length'].')')
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: ($length ? 'VARCHAR(' .$length . ')' : 'TEXT');
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case 'clob':
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return 'TEXT';
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case 'blob':
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return 'BYTEA';
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case 'enum':
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case 'integer':
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case 'int':
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if ( ! empty($field['autoincrement'])) {
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if ( ! empty($field['length'])) {
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$length = $field['length'];
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if ($length > 4) {
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return 'BIGSERIAL';
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}
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}
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return 'SERIAL';
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}
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if ( ! empty($field['length'])) {
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$length = $field['length'];
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if ($length <= 2) {
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return 'SMALLINT';
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} elseif ($length == 3 || $length == 4) {
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return 'INT';
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} elseif ($length > 4) {
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return 'BIGINT';
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}
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}
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return 'INT';
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case 'boolean':
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return 'BOOLEAN';
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case 'date':
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return 'DATE';
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case 'time':
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return 'TIME without time zone';
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case 'timestamp':
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return 'TIMESTAMP without time zone';
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case 'float':
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case 'double':
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return 'FLOAT';
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case 'decimal':
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$length = !empty($field['length']) ? $field['length'] : 18;
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$scale = !empty($field['scale']) ? $field['scale'] : $this->conn->getAttribute(Doctrine::ATTR_DECIMAL_PLACES);
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return 'NUMERIC('.$length.','.$scale.')';
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}
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throw DoctrineException::updateMe('Unknown field type \'' . $field['type'] . '\'.');
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}
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/**
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* Maps a native array description of a field to a portable Doctrine datatype and length
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*
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* @param array $field native field description
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*
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* @return array containing the various possible types, length, sign, fixed
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* @override
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*/
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public function getPortableDeclaration(array $field)
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{
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$length = (isset($field['length'])) ? $field['length'] : null;
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if ($length == '-1' && isset($field['atttypmod'])) {
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$length = $field['atttypmod'] - 4;
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}
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if ((int)$length <= 0) {
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$length = null;
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}
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$type = array();
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$unsigned = $fixed = null;
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if ( ! isset($field['name'])) {
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$field['name'] = '';
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}
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$dbType = strtolower($field['type']);
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switch ($dbType) {
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case 'smallint':
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case 'int2':
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$type[] = 'integer';
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$unsigned = false;
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$length = 2;
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if ($length == '2') {
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$type[] = 'boolean';
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if (preg_match('/^(is|has)/', $field['name'])) {
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$type = array_reverse($type);
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}
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}
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break;
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case 'int':
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case 'int4':
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case 'integer':
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case 'serial':
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case 'serial4':
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$type[] = 'integer';
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$unsigned = false;
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$length = 4;
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break;
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case 'bigint':
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case 'int8':
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case 'bigserial':
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case 'serial8':
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$type[] = 'integer';
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$unsigned = false;
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$length = 8;
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break;
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case 'bool':
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case 'boolean':
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$type[] = 'boolean';
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$length = 1;
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break;
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case 'text':
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case 'varchar':
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case 'interval':
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case '_varchar':
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$fixed = false;
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case 'unknown':
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case 'char':
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case 'bpchar':
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$type[] = 'string';
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if ($length == '1') {
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$type[] = 'boolean';
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if (preg_match('/^(is|has)/', $field['name'])) {
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$type = array_reverse($type);
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}
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} elseif (strstr($dbType, 'text')) {
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$type[] = 'clob';
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}
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if ($fixed !== false) {
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$fixed = true;
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}
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break;
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case 'date':
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$type[] = 'date';
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$length = null;
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break;
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case 'datetime':
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case 'timestamp':
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case 'timestamptz':
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$type[] = 'timestamp';
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$length = null;
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break;
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case 'time':
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$type[] = 'time';
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$length = null;
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break;
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case 'float':
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case 'float4':
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case 'float8':
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case 'double':
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case 'double precision':
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case 'real':
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$type[] = 'float';
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break;
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case 'decimal':
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case 'money':
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case 'numeric':
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$type[] = 'decimal';
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break;
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case 'tinyblob':
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case 'mediumblob':
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case 'longblob':
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case 'blob':
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case 'bytea':
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$type[] = 'blob';
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$length = null;
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break;
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case 'oid':
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$type[] = 'blob';
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$type[] = 'clob';
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$length = null;
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break;
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case 'year':
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$type[] = 'integer';
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$type[] = 'date';
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$length = null;
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break;
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default:
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throw DoctrineException::updateMe('unknown database attribute type: '.$dbType);
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}
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return array('type' => $type,
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'length' => $length,
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'unsigned' => $unsigned,
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'fixed' => $fixed);
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}
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/**
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* Returns the md5 sum of a field.
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*
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* Note: Not SQL92, but common functionality
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*
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* md5() works with the default PostgreSQL 8 versions.
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*
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* If you are using PostgreSQL 7.x or older you need
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* to make sure that the digest procedure is installed.
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* If you use RPMS (Redhat and Mandrake) install the postgresql-contrib
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* package. You must then install the procedure by running this shell command:
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* <code>
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* psql [dbname] < /usr/share/pgsql/contrib/pgcrypto.sql
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* </code>
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* You should make sure you run this as the postgres user.
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*
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* @return string
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* @override
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*/
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public function getMd5Expression($column)
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{
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$column = $this->quoteIdentifier($column);
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if ($this->_version > 7) {
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return 'MD5(' . $column . ')';
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} else {
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return 'encode(digest(' . $column .', md5), hex)';
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}
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}
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/**
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* Returns part of a string.
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*
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* Note: Not SQL92, but common functionality.
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*
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* @param string $value the target $value the string or the string column.
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* @param int $from extract from this characeter.
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* @param int $len extract this amount of characters.
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* @return string sql that extracts part of a string.
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* @override
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*/
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public function getSubstringExpression($value, $from, $len = null)
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{
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$value = $this->quoteIdentifier($value);
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if ($len === null) {
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$len = $this->quoteIdentifier($len);
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return 'SUBSTR(' . $value . ', ' . $from . ')';
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} else {
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return 'SUBSTR(' . $value . ', ' . $from . ', ' . $len . ')';
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}
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}
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/**
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* PostgreSQLs AGE(<timestamp1> [, <timestamp2>]) function.
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*
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* @param string $timestamp1 timestamp to subtract from NOW()
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* @param string $timestamp2 optional; if given: subtract arguments
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* @return string
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*/
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public function getAgeExpression($timestamp1, $timestamp2 = null)
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{
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if ( $timestamp2 == null ) {
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return 'AGE(' . $timestamp1 . ')';
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}
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return 'AGE(' . $timestamp1 . ', ' . $timestamp2 . ')';
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}
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/**
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* PostgreSQLs DATE_PART( <text>, <time> ) function.
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*
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* @param string $text what to extract
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* @param string $time timestamp or interval to extract from
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* @return string
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*/
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public function getDatePartExpression($text, $time)
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{
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return 'DATE_PART(' . $text . ', ' . $time . ')';
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}
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/**
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* PostgreSQLs TO_CHAR( <time>, <text> ) function.
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*
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* @param string $time timestamp or interval
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* @param string $text how to the format the output
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* @return string
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*/
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public function getToCharExpression($time, $text)
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{
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return 'TO_CHAR(' . $time . ', ' . $text . ')';
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}
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/**
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* Returns the SQL string to return the current system date and time.
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*
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* @return string
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*/
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public function getNowExpression()
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{
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return 'LOCALTIMESTAMP(0)';
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}
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/**
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* regexp
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*
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* @return string the regular expression operator
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* @override
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*/
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public function getRegexpExpression()
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{
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return 'SIMILAR TO';
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}
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/**
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* return string to call a function to get random value inside an SQL statement
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*
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* @return return string to generate float between 0 and 1
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* @access public
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* @override
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*/
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public function getRandomExpression()
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{
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return 'RANDOM()';
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}
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/**
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* build a pattern matching string
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*
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* EXPERIMENTAL
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*
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* WARNING: this function is experimental and may change signature at
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* any time until labelled as non-experimental
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*
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* @access public
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*
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* @param array $pattern even keys are strings, odd are patterns (% and _)
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* @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future)
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* @param string $field optional field name that is being matched against
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* (might be required when emulating ILIKE)
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*
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* @return string SQL pattern
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* @override
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*/
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public function getMatchPatternExpression($pattern, $operator = null, $field = null)
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{
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$match = '';
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if ( ! is_null($operator)) {
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$field = is_null($field) ? '' : $field.' ';
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$operator = strtoupper($operator);
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switch ($operator) {
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// case insensitive
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case 'ILIKE':
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$match = $field.'ILIKE ';
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break;
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// case sensitive
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case 'LIKE':
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$match = $field.'LIKE ';
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break;
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default:
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throw DoctrineException::updateMe('not a supported operator type:'. $operator);
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}
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}
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$match.= "'";
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foreach ($pattern as $key => $value) {
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if ($key % 2) {
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$match.= $value;
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} else {
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$match.= $this->conn->escapePattern($this->conn->escape($value));
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}
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}
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$match.= "'";
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$match.= $this->patternEscapeString();
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return $match;
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}
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|
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/**
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* parses a literal boolean value and returns
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* proper sql equivalent
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*
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* @param string $value boolean value to be parsed
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* @return string parsed boolean value
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*/
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public function parseBoolean($value)
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{
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return $value;
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}
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|
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/**
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* Whether the platform supports sequences.
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* Postgres has native support for sequences.
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*
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* @return boolean
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*/
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public function supportsSequences()
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{
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return true;
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}
|
|
|
|
/**
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* Whether the platform supports identity columns.
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* Postgres supports these through the SERIAL keyword.
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|
*
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|
* @return boolean
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*/
|
|
public function supportsIdentityColumns()
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|
{
|
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return true;
|
|
}
|
|
|
|
/**
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|
* Whether the platform prefers sequences for ID generation.
|
|
*
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|
* @return boolean
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*/
|
|
public function prefersSequences()
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|
{
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return true;
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}
|
|
|
|
/**
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|
* Enter description here...
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|
*
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|
* @override
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|
*/
|
|
public function getListDatabasesSql()
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|
{
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return 'SELECT datname FROM pg_database';
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|
}
|
|
|
|
/**
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|
* Enter description here...
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|
*
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|
* @override
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|
*/
|
|
public function getListFunctionsSql()
|
|
{
|
|
return "SELECT
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|
proname
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|
FROM
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|
pg_proc pr, pg_type tp
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|
WHERE
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tp.oid = pr.prorettype
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|
AND pr.proisagg = FALSE
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|
AND tp.typname <> 'trigger'
|
|
AND pr.pronamespace IN
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|
(SELECT oid FROM pg_namespace
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|
WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema'";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListSequencesSql()
|
|
{
|
|
return "SELECT
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|
relname
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|
FROM
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|
pg_class
|
|
WHERE relkind = 'S' AND relnamespace IN
|
|
(SELECT oid FROM pg_namespace
|
|
WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListTablesSql()
|
|
{
|
|
return "SELECT
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|
c.relname AS table_name
|
|
FROM pg_class c, pg_user u
|
|
WHERE c.relowner = u.usesysid
|
|
AND c.relkind = 'r'
|
|
AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname)
|
|
AND c.relname !~ '^(pg_|sql_)'
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|
UNION
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|
SELECT c.relname AS table_name
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|
FROM pg_class c
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|
WHERE c.relkind = 'r'
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|
AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname)
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|
AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner)
|
|
AND c.relname !~ '^pg_'";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListViewsSql()
|
|
{
|
|
return 'SELECT viewname FROM pg_views';
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListUsersSql()
|
|
{
|
|
return 'SELECT usename FROM pg_user';
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListTableConstraintsSql($table)
|
|
{
|
|
return "SELECT
|
|
relname
|
|
FROM
|
|
pg_class
|
|
WHERE oid IN (
|
|
SELECT indexrelid
|
|
FROM pg_index, pg_class
|
|
WHERE pg_class.relname = '$table'
|
|
AND pg_class.oid = pg_index.indrelid
|
|
AND (indisunique = 't' OR indisprimary = 't')
|
|
)";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListTableIndexesSql()
|
|
{
|
|
return "SELECT
|
|
relname
|
|
FROM
|
|
pg_class
|
|
WHERE oid IN (
|
|
SELECT indexrelid
|
|
FROM pg_index, pg_class
|
|
WHERE pg_class.relname = %s
|
|
AND pg_class.oid=pg_index.indrelid
|
|
AND indisunique != 't'
|
|
AND indisprimary != 't'
|
|
)";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @override
|
|
*/
|
|
public function getListTableColumnsSql($table)
|
|
{
|
|
return "SELECT
|
|
a.attnum,
|
|
a.attname AS field,
|
|
t.typname AS type,
|
|
format_type(a.atttypid, a.atttypmod) AS complete_type,
|
|
a.attnotnull AS isnotnull,
|
|
(SELECT 't'
|
|
FROM pg_index
|
|
WHERE c.oid = pg_index.indrelid
|
|
AND pg_index.indkey[0] = a.attnum
|
|
AND pg_index.indisprimary = 't'
|
|
) AS pri,
|
|
(SELECT pg_attrdef.adsrc
|
|
FROM pg_attrdef
|
|
WHERE c.oid = pg_attrdef.adrelid
|
|
AND pg_attrdef.adnum=a.attnum
|
|
) AS default
|
|
FROM pg_attribute a, pg_class c, pg_type t
|
|
WHERE c.relname = '$table'
|
|
AND a.attnum > 0
|
|
AND a.attrelid = c.oid
|
|
AND a.atttypid = t.oid
|
|
ORDER BY a.attnum";
|
|
}
|
|
|
|
/**
|
|
* create a new database
|
|
*
|
|
* @param string $name name of the database that should be created
|
|
* @throws PDOException
|
|
* @return void
|
|
* @override
|
|
*/
|
|
public function getCreateDatabaseSql($name)
|
|
{
|
|
return 'CREATE DATABASE ' . $this->quoteIdentifier($name);
|
|
}
|
|
|
|
/**
|
|
* drop an existing database
|
|
*
|
|
* @param string $name name of the database that should be dropped
|
|
* @throws PDOException
|
|
* @access public
|
|
*/
|
|
public function getDropDatabaseSql($name)
|
|
{
|
|
return 'DROP DATABASE ' . $this->quoteIdentifier($name);
|
|
}
|
|
|
|
/**
|
|
* getAdvancedForeignKeyOptions
|
|
* Return the FOREIGN KEY query section dealing with non-standard options
|
|
* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
|
|
*
|
|
* @param array $definition foreign key definition
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getAdvancedForeignKeyOptionsSql(array $definition)
|
|
{
|
|
$query = '';
|
|
if (isset($definition['match'])) {
|
|
$query .= ' MATCH ' . $definition['match'];
|
|
}
|
|
if (isset($definition['onUpdate'])) {
|
|
$query .= ' ON UPDATE ' . $definition['onUpdate'];
|
|
}
|
|
if (isset($definition['onDelete'])) {
|
|
$query .= ' ON DELETE ' . $definition['onDelete'];
|
|
}
|
|
if (isset($definition['deferrable'])) {
|
|
$query .= ' DEFERRABLE';
|
|
} else {
|
|
$query .= ' NOT DEFERRABLE';
|
|
}
|
|
if (isset($definition['feferred'])) {
|
|
$query .= ' INITIALLY DEFERRED';
|
|
} else {
|
|
$query .= ' INITIALLY IMMEDIATE';
|
|
}
|
|
return $query;
|
|
}
|
|
|
|
/**
|
|
* generates the sql for altering an existing table on postgresql
|
|
*
|
|
* @param string $name name of the table that is intended to be changed.
|
|
* @param array $changes associative array that contains the details of each type *
|
|
* @param boolean $check indicates whether the function should just check if the DBMS driver
|
|
* can perform the requested table alterations if the value is true or
|
|
* actually perform them otherwise.
|
|
* @see Doctrine_Export::alterTable()
|
|
* @return array
|
|
* @override
|
|
*/
|
|
public function getAlterTableSql($name, array $changes, $check = false)
|
|
{
|
|
foreach ($changes as $changeName => $change) {
|
|
switch ($changeName) {
|
|
case 'add':
|
|
case 'remove':
|
|
case 'change':
|
|
case 'name':
|
|
case 'rename':
|
|
break;
|
|
default:
|
|
throw DoctrineException::updateMe('change type "' . $changeName . '\" not yet supported');
|
|
}
|
|
}
|
|
|
|
if ($check) {
|
|
return true;
|
|
}
|
|
|
|
$sql = array();
|
|
|
|
if (isset($changes['add']) && is_array($changes['add'])) {
|
|
foreach ($changes['add'] as $fieldName => $field) {
|
|
$query = 'ADD ' . $this->getColumnDeclarationSql($fieldName, $field);
|
|
$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
|
|
}
|
|
}
|
|
|
|
if (isset($changes['remove']) && is_array($changes['remove'])) {
|
|
foreach ($changes['remove'] as $fieldName => $field) {
|
|
$fieldName = $this->quoteIdentifier($fieldName, true);
|
|
$query = 'DROP ' . $fieldName;
|
|
$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
|
|
}
|
|
}
|
|
|
|
if (isset($changes['change']) && is_array($changes['change'])) {
|
|
foreach ($changes['change'] as $fieldName => $field) {
|
|
$fieldName = $this->quoteIdentifier($fieldName, true);
|
|
if (isset($field['type'])) {
|
|
$serverInfo = $this->getServerVersion();
|
|
|
|
if (is_array($serverInfo) && $serverInfo['major'] < 8) {
|
|
throw DoctrineException::updateMe('changing column type for "'.$field['type'].'\" requires PostgreSQL 8.0 or above');
|
|
}
|
|
$query = 'ALTER ' . $fieldName . ' TYPE ' . $this->getTypeDeclarationSql($field['definition']);
|
|
$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
|
|
}
|
|
if (array_key_exists('default', $field)) {
|
|
$query = 'ALTER ' . $fieldName . ' SET DEFAULT ' . $this->quote($field['definition']['default'], $field['definition']['type']);
|
|
$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
|
|
}
|
|
if ( ! empty($field['notnull'])) {
|
|
$query = 'ALTER ' . $fieldName . ' ' . ($field['definition']['notnull'] ? 'SET' : 'DROP') . ' NOT NULL';
|
|
$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (isset($changes['rename']) && is_array($changes['rename'])) {
|
|
foreach ($changes['rename'] as $fieldName => $field) {
|
|
$fieldName = $this->quoteIdentifier($fieldName, true);
|
|
$sql[] = 'ALTER TABLE ' . $name . ' RENAME COLUMN ' . $fieldName . ' TO ' . $this->quoteIdentifier($field['name'], true);
|
|
}
|
|
}
|
|
|
|
$name = $this->quoteIdentifier($name, true);
|
|
if (isset($changes['name'])) {
|
|
$changeName = $this->quoteIdentifier($changes['name'], true);
|
|
$sql[] = 'ALTER TABLE ' . $name . ' RENAME TO ' . $changeName;
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*
|
|
* @return string
|
|
* @override
|
|
*/
|
|
public function getCreateSequenceSql($sequenceName, $start = 1, $allocationSize = 1)
|
|
{
|
|
return 'CREATE SEQUENCE ' . $this->quoteIdentifier($sequenceName)
|
|
. ' INCREMENT BY ' . $allocationSize . ' START ' . $start;
|
|
}
|
|
|
|
/**
|
|
* drop existing sequence
|
|
*
|
|
* @param string $sequenceName name of the sequence to be dropped
|
|
* @override
|
|
*/
|
|
public function getDropSequenceSql($sequenceName)
|
|
{
|
|
return 'DROP SEQUENCE ' . $this->quoteIdentifier($sequenceName);
|
|
}
|
|
|
|
/**
|
|
* Gets the SQL used to create a table.
|
|
*
|
|
* @param unknown_type $name
|
|
* @param array $fields
|
|
* @param array $options
|
|
* @return unknown
|
|
*/
|
|
public function getCreateTableSql($name, array $fields, array $options = array())
|
|
{
|
|
$queryFields = $this->getColumnDeclarationListSql($fields);
|
|
|
|
if (isset($options['primary']) && ! empty($options['primary'])) {
|
|
$keyColumns = array_unique(array_values($options['primary']));
|
|
$keyColumns = array_map(array($this, 'quoteIdentifier'), $keyColumns);
|
|
$queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
|
|
}
|
|
|
|
$query = 'CREATE TABLE ' . $this->quoteIdentifier($name) . ' (' . $queryFields . ')';
|
|
|
|
$sql[] = $query;
|
|
|
|
if (isset($options['indexes']) && ! empty($options['indexes'])) {
|
|
foreach($options['indexes'] as $index => $definition) {
|
|
$sql[] = $this->getCreateIndexSql($name, $index, $definition);
|
|
}
|
|
}
|
|
|
|
if (isset($options['foreignKeys'])) {
|
|
|
|
foreach ((array) $options['foreignKeys'] as $k => $definition) {
|
|
if (is_array($definition)) {
|
|
$sql[] = $this->getCreateForeignKeySql($name, $definition);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
/**
|
|
* Postgres wants boolean values converted to the strings 'true'/'false'.
|
|
*
|
|
* @param array $item
|
|
* @override
|
|
*/
|
|
public function convertBooleans($item)
|
|
{
|
|
if (is_array($item)) {
|
|
foreach ($item as $key => $value) {
|
|
if (is_bool($value) || is_numeric($item)) {
|
|
$item[$key] = ($value) ? 'true' : 'false';
|
|
}
|
|
}
|
|
} else {
|
|
if (is_bool($item) || is_numeric($item)) {
|
|
$item = ($item) ? 'true' : 'false';
|
|
}
|
|
}
|
|
return $item;
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @param string $sequenceName
|
|
* @override
|
|
*/
|
|
public function getSequenceNextValSql($sequenceName)
|
|
{
|
|
return "SELECT NEXTVAL('" . $sequenceName . "')";
|
|
}
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @param unknown_type $level
|
|
* @override
|
|
*/
|
|
public function getSetTransactionIsolationSql($level)
|
|
{
|
|
return 'SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL '
|
|
. $this->_getTransactionIsolationLevelSql($level);
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getIntegerTypeDeclarationSql(array $field)
|
|
{
|
|
if ( ! empty($field['autoincrement'])) {
|
|
return 'SERIAL';
|
|
}
|
|
return 'INT';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getBigIntTypeDeclarationSql(array $field)
|
|
{
|
|
if ( ! empty($field['autoincrement'])) {
|
|
return 'BIGSERIAL';
|
|
}
|
|
return 'BIGINT';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
public function getSmallIntTypeDeclarationSql(array $field)
|
|
{
|
|
return 'SMALLINT';
|
|
}
|
|
|
|
/**
|
|
* @override
|
|
*/
|
|
protected function _getCommonIntegerTypeDeclarationSql(array $columnDef)
|
|
{
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Gets the SQL snippet used to declare a VARCHAR column on the MySql platform.
|
|
*
|
|
* @params array $field
|
|
* @override
|
|
*/
|
|
public function getVarcharTypeDeclarationSql(array $field)
|
|
{
|
|
if ( ! isset($field['length'])) {
|
|
if (array_key_exists('default', $field)) {
|
|
$field['length'] = $this->getVarcharMaxLength();
|
|
} else {
|
|
$field['length'] = false;
|
|
}
|
|
}
|
|
|
|
$length = ($field['length'] <= $this->getVarcharMaxLength()) ? $field['length'] : false;
|
|
$fixed = (isset($field['fixed'])) ? $field['fixed'] : false;
|
|
|
|
return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
|
|
: ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
|
|
}
|
|
|
|
/**
|
|
* Get the platform name for this instance
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getName()
|
|
{
|
|
return 'postgresql';
|
|
}
|
|
} |