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<?php
/*
* $Id: Pgsql.php 6777 2009-11-19 19:39:02Z jwage $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* @package Doctrine
* @subpackage Import
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Paul Cooper <pgc@ucecom.com>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @version $Revision: 6777 $
* @link www.phpdoctrine.org
* @since 1.0
*/
class Doctrine_Import_Pgsql extends Doctrine_Import
{
protected $sql = array(
'listDatabases' => 'SELECT datname FROM pg_database',
'listFunctions' => "SELECT
proname
FROM
pg_proc pr,
pg_type tp
WHERE
tp.oid = pr.prorettype
AND pr.proisagg = FALSE
AND tp.typname <> 'trigger'
AND pr.pronamespace IN
(SELECT oid FROM pg_namespace
WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema'",
'listSequences' => "SELECT
relname
FROM
pg_class
WHERE relkind = 'S' AND relnamespace IN
(SELECT oid FROM pg_namespace
WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')",
'listTables' => "SELECT
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_)'
UNION
SELECT c.relname AS table_name
FROM pg_class c
WHERE c.relkind = 'r'
AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname)
AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner)
AND c.relname !~ '^pg_'",
'listViews' => 'SELECT viewname FROM pg_views',
'listUsers' => 'SELECT usename FROM pg_user',
'listTableConstraints' => "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' OR indisprimary = 't')
)",
'listTableIndexes' => "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'
)",
'listTableColumns' => "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 a.attnum = ANY (pg_index.indkey)
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 = %s
AND a.attnum > 0
AND a.attrelid = c.oid
AND a.atttypid = t.oid
ORDER BY a.attnum",
'listTableRelations' => "SELECT pg_catalog.pg_get_constraintdef(oid, true) as condef
FROM pg_catalog.pg_constraint r
WHERE r.conrelid =
(
SELECT c.oid
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname ~ ? AND pg_catalog.pg_table_is_visible(c.oid)
)
AND r.contype = 'f'"
);
/**
* lists all database triggers
*
* @param string|null $database
* @return array
*/
public function listTriggers($database = null)
{
}
/**
* lists table constraints
*
* @param string $table database table name
* @return array
*/
public function listTableConstraints($table)
{
$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']) === 'character varying') {
// 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' => (bool) $decl['fixed'],
'unsigned' => (bool) $decl['unsigned'],
'notnull' => ($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]);
$description['default'] = null;
} else if (preg_match("/^'(.*)'::character varying$/", $description['default'], $matches)) {
$description['default'] = $matches[1];
} else if ($description['type'] == 'boolean') {
if ($description['default'] === 'true') {
$description['default'] = true;
} else if ($description['default'] === 'false') {
$description['default'] = false;
}
}
$columns[$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 $this->conn->fetchColumn($table);
}
public function listTableRelations($table)
{
$sql = $this->sql['listTableRelations'];
$param = array('^(' . $table . ')$');
$relations = array();
$results = $this->conn->fetchAssoc($sql, $param);
foreach ($results as $result) {
preg_match('/FOREIGN KEY \((.+)\) REFERENCES (.+)\((.+)\)/', $result['condef'], $values);
if ((strpos(',', $values[1]) === false) && (strpos(',', $values[3]) === false)) {
$tableName = trim($values[2], '"');
$relations[] = array('table' => $tableName,
'local' => $values[1],
'foreign' => $values[3]);
}
}
return $relations;
}
}
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