636 lines
27 KiB
PHP
636 lines
27 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.phpdoctrine.org>.
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*/
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#namespace Doctrine::DBAL::Schema;
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/**
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* xxx
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*
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
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* @version $Revision$
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* @since 2.0
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*/
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class Doctrine_Schema_PostgreSqlSchemaManager extends Doctrine_Schema_SchemaManager
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{
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protected $sql = array(
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'listDatabases' => 'SELECT datname FROM pg_database',
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'listFunctions' => "SELECT
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proname
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FROM
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pg_proc pr,
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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'
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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'",
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'listSequences' => "SELECT
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relname
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FROM
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pg_class
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WHERE relkind = 'S' AND relnamespace IN
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(SELECT oid FROM pg_namespace
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WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')",
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'listTables' => "SELECT
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c.relname AS table_name
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FROM pg_class c, pg_user u
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WHERE c.relowner = u.usesysid
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AND c.relkind = 'r'
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AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname)
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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)
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AND c.relname !~ '^pg_'",
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'listViews' => 'SELECT viewname FROM pg_views',
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'listUsers' => 'SELECT usename FROM pg_user',
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'listTableConstraints' => "SELECT
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relname
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FROM
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pg_class
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WHERE oid IN (
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SELECT indexrelid
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FROM pg_index, pg_class
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WHERE pg_class.relname = %s
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AND pg_class.oid = pg_index.indrelid
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AND (indisunique = 't' OR indisprimary = 't')
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)",
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'listTableIndexes' => "SELECT
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relname
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FROM
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pg_class
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WHERE oid IN (
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SELECT indexrelid
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FROM pg_index, pg_class
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WHERE pg_class.relname = %s
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AND pg_class.oid=pg_index.indrelid
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AND indisunique != 't'
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AND indisprimary != 't'
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)",
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'listTableColumns' => "SELECT
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a.attnum,
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a.attname AS field,
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t.typname AS type,
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format_type(a.atttypid, a.atttypmod) AS complete_type,
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a.attnotnull AS isnotnull,
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(SELECT 't'
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FROM pg_index
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WHERE c.oid = pg_index.indrelid
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AND pg_index.indkey[0] = a.attnum
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AND pg_index.indisprimary = 't'
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) AS pri,
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(SELECT pg_attrdef.adsrc
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FROM pg_attrdef
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WHERE c.oid = pg_attrdef.adrelid
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AND pg_attrdef.adnum=a.attnum
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) AS default
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FROM pg_attribute a, pg_class c, pg_type t
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WHERE c.relname = %s
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AND a.attnum > 0
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AND a.attrelid = c.oid
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AND a.atttypid = t.oid
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ORDER BY a.attnum",
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);
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public function __construct(Doctrine_Connection_Pgsql $conn)
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{
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$this->_conn = $conn;
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}
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/**
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* create a new database
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*
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* @param string $name name of the database that should be created
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* @throws PDOException
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* @return void
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*/
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public function createDatabaseSql($name)
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{
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$query = 'CREATE DATABASE ' . $this->_conn->quoteIdentifier($name);
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return $query;
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}
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/**
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* drop an existing database
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*
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* @param string $name name of the database that should be dropped
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* @throws PDOException
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* @access public
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*/
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public function dropDatabaseSql($name)
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{
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$query = 'DROP DATABASE ' . $this->_conn->quoteIdentifier($name);
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return $query;
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}
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/**
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* getAdvancedForeignKeyOptions
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* Return the FOREIGN KEY query section dealing with non-standard options
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* as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
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*
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* @param array $definition foreign key definition
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* @return string
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* @access protected
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*/
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public function getAdvancedForeignKeyOptions(array $definition)
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{
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$query = '';
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if (isset($definition['match'])) {
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$query .= ' MATCH ' . $definition['match'];
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}
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if (isset($definition['onUpdate'])) {
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$query .= ' ON UPDATE ' . $definition['onUpdate'];
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}
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if (isset($definition['onDelete'])) {
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$query .= ' ON DELETE ' . $definition['onDelete'];
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}
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if (isset($definition['deferrable'])) {
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$query .= ' DEFERRABLE';
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} else {
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$query .= ' NOT DEFERRABLE';
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}
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if (isset($definition['feferred'])) {
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$query .= ' INITIALLY DEFERRED';
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} else {
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$query .= ' INITIALLY IMMEDIATE';
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}
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return $query;
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}
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/**
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* generates the sql for altering an existing table on postgresql
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*
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* @param string $name name of the table that is intended to be changed.
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* @param array $changes associative array that contains the details of each type *
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @see Doctrine_Export::alterTable()
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* @return array
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*/
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public function alterTableSql($name, array $changes, $check = false)
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{
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foreach ($changes as $changeName => $change) {
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switch ($changeName) {
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case 'add':
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case 'remove':
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case 'change':
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case 'name':
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case 'rename':
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break;
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default:
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throw new Doctrine_Export_Exception('change type "' . $changeName . '\" not yet supported');
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}
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}
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if ($check) {
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return true;
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}
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$sql = array();
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if (isset($changes['add']) && is_array($changes['add'])) {
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foreach ($changes['add'] as $fieldName => $field) {
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$query = 'ADD ' . $this->getDeclaration($fieldName, $field);
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$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
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}
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}
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if (isset($changes['remove']) && is_array($changes['remove'])) {
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foreach ($changes['remove'] as $fieldName => $field) {
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$fieldName = $this->_conn->quoteIdentifier($fieldName, true);
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$query = 'DROP ' . $fieldName;
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$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
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}
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}
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if (isset($changes['change']) && is_array($changes['change'])) {
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foreach ($changes['change'] as $fieldName => $field) {
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$fieldName = $this->_conn->quoteIdentifier($fieldName, true);
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if (isset($field['type'])) {
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$serverInfo = $this->_conn->getServerVersion();
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if (is_array($serverInfo) && $serverInfo['major'] < 8) {
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throw new Doctrine_Export_Exception('changing column type for "'.$field['type'].'\" requires PostgreSQL 8.0 or above');
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}
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$query = 'ALTER ' . $fieldName . ' TYPE ' . $this->_conn->datatype->getTypeDeclaration($field['definition']);
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$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
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}
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if (array_key_exists('default', $field)) {
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$query = 'ALTER ' . $fieldName . ' SET DEFAULT ' . $this->_conn->quote($field['definition']['default'], $field['definition']['type']);
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$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
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}
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if ( ! empty($field['notnull'])) {
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$query = 'ALTER ' . $fieldName . ' ' . ($field['definition']['notnull'] ? 'SET' : 'DROP') . ' NOT NULL';
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$sql[] = 'ALTER TABLE ' . $name . ' ' . $query;
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}
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}
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}
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if (isset($changes['rename']) && is_array($changes['rename'])) {
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foreach ($changes['rename'] as $fieldName => $field) {
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$fieldName = $this->_conn->quoteIdentifier($fieldName, true);
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$sql[] = 'ALTER TABLE ' . $name . ' RENAME COLUMN ' . $fieldName . ' TO ' . $this->_conn->quoteIdentifier($field['name'], true);
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}
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}
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$name = $this->_conn->quoteIdentifier($name, true);
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if (isset($changes['name'])) {
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$changeName = $this->_conn->quoteIdentifier($changes['name'], true);
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$sql[] = 'ALTER TABLE ' . $name . ' RENAME TO ' . $changeName;
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}
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return $sql;
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}
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/**
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* alter an existing table
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*
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* @param string $name name of the table that is intended to be changed.
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* @param array $changes associative array that contains the details of each type
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* of change that is intended to be performed. The types of
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* changes that are currently supported are defined as follows:
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*
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* name
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*
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* New name for the table.
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*
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* add
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*
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* Associative array with the names of fields to be added as
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* indexes of the array. The value of each entry of the array
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* should be set to another associative array with the properties
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* of the fields to be added. The properties of the fields should
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* be the same as defined by the Metabase parser.
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*
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*
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* remove
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*
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* Associative array with the names of fields to be removed as indexes
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* of the array. Currently the values assigned to each entry are ignored.
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* An empty array should be used for future compatibility.
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*
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* rename
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*
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* Associative array with the names of fields to be renamed as indexes
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* of the array. The value of each entry of the array should be set to
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* another associative array with the entry named name with the new
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* field name and the entry named Declaration that is expected to contain
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* the portion of the field declaration already in DBMS specific SQL code
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* as it is used in the CREATE TABLE statement.
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*
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* change
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*
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* Associative array with the names of the fields to be changed as indexes
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* of the array. Keep in mind that if it is intended to change either the
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* name of a field and any other properties, the change array entries
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* should have the new names of the fields as array indexes.
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*
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* The value of each entry of the array should be set to another associative
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* array with the properties of the fields to that are meant to be changed as
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* array entries. These entries should be assigned to the new values of the
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* respective properties. The properties of the fields should be the same
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* as defined by the Metabase parser.
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*
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* Example
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* array(
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* 'name' => 'userlist',
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* 'add' => array(
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* 'quota' => array(
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* 'type' => 'integer',
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* 'unsigned' => 1
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* )
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* ),
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* 'remove' => array(
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* 'file_limit' => array(),
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* 'time_limit' => array()
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* ),
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* 'change' => array(
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* 'name' => array(
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* 'length' => '20',
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* 'definition' => array(
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* 'type' => 'text',
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* 'length' => 20,
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* ),
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* )
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* ),
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* 'rename' => array(
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* 'sex' => array(
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* 'name' => 'gender',
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* 'definition' => array(
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* 'type' => 'text',
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* 'length' => 1,
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* 'default' => 'M',
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* ),
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* )
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* )
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* )
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*
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* @param boolean $check indicates whether the function should just check if the DBMS driver
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* can perform the requested table alterations if the value is true or
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* actually perform them otherwise.
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* @throws Doctrine_Connection_Exception
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* @return boolean
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*/
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public function alterTable($name, array $changes, $check = false)
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{
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$sql = $this->alterTableSql($name, $changes, $check);
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foreach ($sql as $query) {
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$this->_conn->exec($query);
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}
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return true;
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}
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/**
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* return RDBMS specific create sequence statement
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*
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* @throws Doctrine_Connection_Exception if something fails at database level
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* @param string $seqName name of the sequence to be created
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* @param string $start start value of the sequence; default is 1
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* @param array $options An associative array of table options:
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* array(
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* 'comment' => 'Foo',
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* 'charset' => 'utf8',
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* 'collate' => 'utf8_unicode_ci',
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* );
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* @return string
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*/
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public function createSequenceSql($sequenceName, $start = 1, array $options = array())
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{
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$sequenceName = $this->_conn->quoteIdentifier($this->_conn->formatter->getSequenceName($sequenceName), true);
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return $this->_conn->exec('CREATE SEQUENCE ' . $sequenceName . ' INCREMENT 1' .
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($start < 1 ? ' MINVALUE ' . $start : '') . ' START ' . $start);
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}
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/**
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* drop existing sequence
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*
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* @param string $sequenceName name of the sequence to be dropped
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*/
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public function dropSequenceSql($sequenceName)
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{
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$sequenceName = $this->_conn->quoteIdentifier($this->_conn->formatter->getSequenceName($sequenceName), true);
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return 'DROP SEQUENCE ' . $sequenceName;
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}
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/**
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* Creates a table.
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*
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* @param unknown_type $name
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* @param array $fields
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* @param array $options
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* @return unknown
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*/
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public function createTableSql($name, array $fields, array $options = array())
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{
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if ( ! $name) {
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throw new Doctrine_Export_Exception('no valid table name specified');
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}
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if (empty($fields)) {
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throw new Doctrine_Export_Exception('no fields specified for table ' . $name);
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}
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$queryFields = $this->getFieldDeclarationList($fields);
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if (isset($options['primary']) && ! empty($options['primary'])) {
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$keyColumns = array_values($options['primary']);
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$keyColumns = array_map(array($this->_conn, 'quoteIdentifier'), $keyColumns);
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$queryFields .= ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
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}
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$query = 'CREATE TABLE ' . $this->_conn->quoteIdentifier($name, true) . ' (' . $queryFields . ')';
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$sql[] = $query;
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if (isset($options['indexes']) && ! empty($options['indexes'])) {
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foreach($options['indexes'] as $index => $definition) {
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$sql[] = $this->createIndexSql($name, $index, $definition);
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}
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}
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if (isset($options['foreignKeys'])) {
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foreach ((array) $options['foreignKeys'] as $k => $definition) {
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if (is_array($definition)) {
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$sql[] = $this->createForeignKeySql($name, $definition);
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}
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}
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}
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return $sql;
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}
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/**
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* Obtain DBMS specific SQL code portion needed to declare an integer type
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* field to be used in statements like CREATE TABLE.
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*
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* @param string $name name the field to be declared.
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* @param array $field associative array with the name of the properties
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* of the field being declared as array indexes. Currently, the types
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* of supported field properties are as follows:
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*
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* unsigned
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* Boolean flag that indicates whether the field should be
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* declared as unsigned integer if possible.
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*
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* default
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* Integer value to be used as default for this field.
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*
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* notnull
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* Boolean flag that indicates whether this field is constrained
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* to not be set to null.
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* @return string DBMS specific SQL code portion that should be used to
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* declare the specified field.
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*/
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public function getIntegerDeclaration($name, $field)
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{
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/**
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if ( ! empty($field['unsigned'])) {
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$this->_conn->warnings[] = "unsigned integer field \"$name\" is being declared as signed integer";
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}
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*/
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if ( ! empty($field['autoincrement'])) {
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$name = $this->_conn->quoteIdentifier($name, true);
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return $name . ' ' . $this->_conn->dataDict->getNativeDeclaration($field);
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}
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$default = '';
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if (array_key_exists('default', $field)) {
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if ($field['default'] === '') {
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$field['default'] = empty($field['notnull']) ? null : 0;
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}
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$default = ' DEFAULT '.$this->_conn->quote($field['default'], $field['type']);
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} elseif (empty($field['notnull'])) {
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$default = ' DEFAULT NULL';
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}
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$notnull = empty($field['notnull']) ? '' : ' NOT NULL';
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$name = $this->_conn->quoteIdentifier($name, true);
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return $name . ' ' . $this->_conn->dataDict->getNativeDeclaration($field) . $default . $notnull;
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}
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/**
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* lists all database triggers
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*
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* @param string|null $database
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* @return array
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*/
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public function listTriggers($database = null)
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{
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}
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|
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/**
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* lists table constraints
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*
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* @param string $table database table name
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* @return array
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*/
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public function listTableConstraints($table)
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{
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$table = $this->conn->quote($table);
|
|
$query = sprintf($this->sql['listTableConstraints'], $table);
|
|
|
|
return $this->conn->fetchColumn($query);
|
|
}
|
|
|
|
/**
|
|
* lists table constraints
|
|
*
|
|
* @param string $table database table name
|
|
* @return array
|
|
*/
|
|
public function listTableColumns($table)
|
|
{
|
|
$table = $this->conn->quote($table);
|
|
$query = sprintf($this->sql['listTableColumns'], $table);
|
|
$result = $this->conn->fetchAssoc($query);
|
|
|
|
$columns = array();
|
|
foreach ($result as $key => $val) {
|
|
$val = array_change_key_case($val, CASE_LOWER);
|
|
|
|
if (strtolower($val['type']) === 'varchar') {
|
|
// get length from varchar definition
|
|
$length = preg_replace('~.*\(([0-9]*)\).*~', '$1', $val['complete_type']);
|
|
$val['length'] = $length;
|
|
}
|
|
|
|
$decl = $this->_conn->dataDict->getPortableDeclaration($val);
|
|
|
|
$description = array(
|
|
'name' => $val['field'],
|
|
'ntype' => $val['type'],
|
|
'type' => $decl['type'][0],
|
|
'alltypes' => $decl['type'],
|
|
'length' => $decl['length'],
|
|
'fixed' => $decl['fixed'],
|
|
'unsigned' => $decl['unsigned'],
|
|
'notnull' => ($val['isnotnull'] == true),
|
|
'default' => $val['default'],
|
|
'primary' => ($val['pri'] == 't'),
|
|
);
|
|
|
|
$matches = array();
|
|
|
|
if (preg_match("/^nextval\('(.*)'(::.*)?\)$/", $description['default'], $matches)) {
|
|
|
|
$description['sequence'] = $this->_conn->formatter->fixSequenceName($matches[1]);
|
|
$description['default'] = null;
|
|
}
|
|
|
|
$columns[$val['field']] = $description;
|
|
}
|
|
|
|
return $columns;
|
|
}
|
|
|
|
/**
|
|
* list all indexes in a table
|
|
*
|
|
* @param string $table database table name
|
|
* @return array
|
|
*/
|
|
public function listTableIndexes($table)
|
|
{
|
|
$table = $this->_conn->quote($table);
|
|
$query = sprintf($this->sql['listTableIndexes'], $table);
|
|
|
|
return $this->_conn->fetchColumn($query);
|
|
}
|
|
|
|
/**
|
|
* lists tables
|
|
*
|
|
* @param string|null $database
|
|
* @return array
|
|
*/
|
|
public function listTables($database = null)
|
|
{
|
|
return $this->_conn->fetchColumn($this->sql['listTables']);
|
|
}
|
|
|
|
/**
|
|
* lists table triggers
|
|
*
|
|
* @param string $table database table name
|
|
* @return array
|
|
*/
|
|
public function listTableTriggers($table)
|
|
{
|
|
$query = 'SELECT trg.tgname AS trigger_name
|
|
FROM pg_trigger trg,
|
|
pg_class tbl
|
|
WHERE trg.tgrelid = tbl.oid';
|
|
if ($table !== null) {
|
|
$table = $this->_conn->quote(strtoupper($table), 'string');
|
|
$query .= " AND tbl.relname = $table";
|
|
}
|
|
return $this->_conn->fetchColumn($query);
|
|
}
|
|
|
|
/**
|
|
* list the views in the database that reference a given table
|
|
*
|
|
* @param string $table database table name
|
|
* @return array
|
|
*/
|
|
public function listTableViews($table)
|
|
{
|
|
return $this->_conn->fetchColumn($query);
|
|
}
|
|
}
|
|
|
|
?>
|