www.gusucode.com > Flarum PHP论坛 中文版 v0.1 beta7源码程序 > FlarumChina-master/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/PostgreSqlSchemaManager.php
<?php
/*
* 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 MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Exception\DriverException;
use Doctrine\DBAL\Types\Type;
/**
* PostgreSQL Schema Manager.
*
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @since 2.0
*/
class PostgreSqlSchemaManager extends AbstractSchemaManager
{
/**
* @var array
*/
private $existingSchemaPaths;
/**
* Gets all the existing schema names.
*
* @return array
*/
public function getSchemaNames()
{
$rows = $this->_conn->fetchAll("SELECT nspname as schema_name FROM pg_namespace WHERE nspname !~ '^pg_.*' and nspname != 'information_schema'");
return array_map(function ($v) { return $v['schema_name']; }, $rows);
}
/**
* Returns an array of schema search paths.
*
* This is a PostgreSQL only function.
*
* @return array
*/
public function getSchemaSearchPaths()
{
$params = $this->_conn->getParams();
$schema = explode(",", $this->_conn->fetchColumn('SHOW search_path'));
if (isset($params['user'])) {
$schema = str_replace('"$user"', $params['user'], $schema);
}
return array_map('trim', $schema);
}
/**
* Gets names of all existing schemas in the current users search path.
*
* This is a PostgreSQL only function.
*
* @return array
*/
public function getExistingSchemaSearchPaths()
{
if ($this->existingSchemaPaths === null) {
$this->determineExistingSchemaSearchPaths();
}
return $this->existingSchemaPaths;
}
/**
* Sets or resets the order of the existing schemas in the current search path of the user.
*
* This is a PostgreSQL only function.
*
* @return void
*/
public function determineExistingSchemaSearchPaths()
{
$names = $this->getSchemaNames();
$paths = $this->getSchemaSearchPaths();
$this->existingSchemaPaths = array_filter($paths, function ($v) use ($names) {
return in_array($v, $names);
});
}
/**
* {@inheritdoc}
*/
public function dropDatabase($database)
{
try {
parent::dropDatabase($database);
} catch (DriverException $exception) {
// If we have a SQLSTATE 55006, the drop database operation failed
// because of active connections on the database.
// To force dropping the database, we first have to close all active connections
// on that database and issue the drop database operation again.
if ($exception->getSQLState() !== '55006') {
throw $exception;
}
$this->_execSql(
array(
$this->_platform->getDisallowDatabaseConnectionsSQL($database),
$this->_platform->getCloseActiveDatabaseConnectionsSQL($database),
)
);
parent::dropDatabase($database);
}
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
{
$onUpdate = null;
$onDelete = null;
if (preg_match('(ON UPDATE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))', $tableForeignKey['condef'], $match)) {
$onUpdate = $match[1];
}
if (preg_match('(ON DELETE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))', $tableForeignKey['condef'], $match)) {
$onDelete = $match[1];
}
if (preg_match('/FOREIGN KEY \((.+)\) REFERENCES (.+)\((.+)\)/', $tableForeignKey['condef'], $values)) {
// PostgreSQL returns identifiers that are keywords with quotes, we need them later, don't get
// the idea to trim them here.
$localColumns = array_map('trim', explode(",", $values[1]));
$foreignColumns = array_map('trim', explode(",", $values[3]));
$foreignTable = $values[2];
}
return new ForeignKeyConstraint(
$localColumns, $foreignTable, $foreignColumns, $tableForeignKey['conname'],
array('onUpdate' => $onUpdate, 'onDelete' => $onDelete)
);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTriggerDefinition($trigger)
{
return $trigger['trigger_name'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableViewDefinition($view)
{
return new View($view['schemaname'].'.'.$view['viewname'], $view['definition']);
}
/**
* {@inheritdoc}
*/
protected function _getPortableUserDefinition($user)
{
return array(
'user' => $user['usename'],
'password' => $user['passwd']
);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableDefinition($table)
{
$schemas = $this->getExistingSchemaSearchPaths();
$firstSchema = array_shift($schemas);
if ($table['schema_name'] == $firstSchema) {
return $table['table_name'];
} else {
return $table['schema_name'] . "." . $table['table_name'];
}
}
/**
* {@inheritdoc}
*
* @license New BSD License
* @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html
*/
protected function _getPortableTableIndexesList($tableIndexes, $tableName=null)
{
$buffer = array();
foreach ($tableIndexes as $row) {
$colNumbers = explode(' ', $row['indkey']);
$colNumbersSql = 'IN (' . join(' ,', $colNumbers) . ' )';
$columnNameSql = "SELECT attnum, attname FROM pg_attribute
WHERE attrelid={$row['indrelid']} AND attnum $colNumbersSql ORDER BY attnum ASC;";
$stmt = $this->_conn->executeQuery($columnNameSql);
$indexColumns = $stmt->fetchAll();
// required for getting the order of the columns right.
foreach ($colNumbers as $colNum) {
foreach ($indexColumns as $colRow) {
if ($colNum == $colRow['attnum']) {
$buffer[] = array(
'key_name' => $row['relname'],
'column_name' => trim($colRow['attname']),
'non_unique' => !$row['indisunique'],
'primary' => $row['indisprimary'],
'where' => $row['where'],
);
}
}
}
}
return parent::_getPortableTableIndexesList($buffer, $tableName);
}
/**
* {@inheritdoc}
*/
protected function _getPortableDatabaseDefinition($database)
{
return $database['datname'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableSequencesList($sequences)
{
$sequenceDefinitions = array();
foreach ($sequences as $sequence) {
if ($sequence['schemaname'] != 'public') {
$sequenceName = $sequence['schemaname'] . "." . $sequence['relname'];
} else {
$sequenceName = $sequence['relname'];
}
$sequenceDefinitions[$sequenceName] = $sequence;
}
$list = array();
foreach ($this->filterAssetNames(array_keys($sequenceDefinitions)) as $sequenceName) {
$list[] = $this->_getPortableSequenceDefinition($sequenceDefinitions[$sequenceName]);
}
return $list;
}
/**
* {@inheritdoc}
*/
protected function getPortableNamespaceDefinition(array $namespace)
{
return $namespace['nspname'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableSequenceDefinition($sequence)
{
if ($sequence['schemaname'] != 'public') {
$sequenceName = $sequence['schemaname'] . "." . $sequence['relname'];
} else {
$sequenceName = $sequence['relname'];
}
$data = $this->_conn->fetchAll('SELECT min_value, increment_by FROM ' . $this->_platform->quoteIdentifier($sequenceName));
return new Sequence($sequenceName, $data[0]['increment_by'], $data[0]['min_value']);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableColumnDefinition($tableColumn)
{
$tableColumn = array_change_key_case($tableColumn, CASE_LOWER);
if (strtolower($tableColumn['type']) === 'varchar' || strtolower($tableColumn['type']) === 'bpchar') {
// get length from varchar definition
$length = preg_replace('~.*\(([0-9]*)\).*~', '$1', $tableColumn['complete_type']);
$tableColumn['length'] = $length;
}
$matches = array();
$autoincrement = false;
if (preg_match("/^nextval\('(.*)'(::.*)?\)$/", $tableColumn['default'], $matches)) {
$tableColumn['sequence'] = $matches[1];
$tableColumn['default'] = null;
$autoincrement = true;
}
if (preg_match("/^['(](.*)[')]::.*$/", $tableColumn['default'], $matches)) {
$tableColumn['default'] = $matches[1];
}
if (stripos($tableColumn['default'], 'NULL') === 0) {
$tableColumn['default'] = null;
}
$length = (isset($tableColumn['length'])) ? $tableColumn['length'] : null;
if ($length == '-1' && isset($tableColumn['atttypmod'])) {
$length = $tableColumn['atttypmod'] - 4;
}
if ((int) $length <= 0) {
$length = null;
}
$fixed = null;
if (!isset($tableColumn['name'])) {
$tableColumn['name'] = '';
}
$precision = null;
$scale = null;
$jsonb = null;
$dbType = strtolower($tableColumn['type']);
if (strlen($tableColumn['domain_type']) && !$this->_platform->hasDoctrineTypeMappingFor($tableColumn['type'])) {
$dbType = strtolower($tableColumn['domain_type']);
$tableColumn['complete_type'] = $tableColumn['domain_complete_type'];
}
$type = $this->_platform->getDoctrineTypeMapping($dbType);
$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
switch ($dbType) {
case 'smallint':
case 'int2':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'int':
case 'int4':
case 'integer':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'bigint':
case 'int8':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'bool':
case 'boolean':
if ($tableColumn['default'] === 'true') {
$tableColumn['default'] = true;
}
if ($tableColumn['default'] === 'false') {
$tableColumn['default'] = false;
}
$length = null;
break;
case 'text':
$fixed = false;
break;
case 'varchar':
case 'interval':
case '_varchar':
$fixed = false;
break;
case 'char':
case 'bpchar':
$fixed = true;
break;
case 'float':
case 'float4':
case 'float8':
case 'double':
case 'double precision':
case 'real':
case 'decimal':
case 'money':
case 'numeric':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
if (preg_match('([A-Za-z]+\(([0-9]+)\,([0-9]+)\))', $tableColumn['complete_type'], $match)) {
$precision = $match[1];
$scale = $match[2];
$length = null;
}
break;
case 'year':
$length = null;
break;
// PostgreSQL 9.4+ only
case 'jsonb':
$jsonb = true;
break;
}
if ($tableColumn['default'] && preg_match("('([^']+)'::)", $tableColumn['default'], $match)) {
$tableColumn['default'] = $match[1];
}
$options = array(
'length' => $length,
'notnull' => (bool) $tableColumn['isnotnull'],
'default' => $tableColumn['default'],
'primary' => (bool) ($tableColumn['pri'] == 't'),
'precision' => $precision,
'scale' => $scale,
'fixed' => $fixed,
'unsigned' => false,
'autoincrement' => $autoincrement,
'comment' => isset($tableColumn['comment']) && $tableColumn['comment'] !== ''
? $tableColumn['comment']
: null,
);
$column = new Column($tableColumn['field'], Type::getType($type), $options);
if (isset($tableColumn['collation']) && !empty($tableColumn['collation'])) {
$column->setPlatformOption('collation', $tableColumn['collation']);
}
if (in_array($column->getType()->getName(), [Type::JSON_ARRAY, Type::JSON], true)) {
$column->setPlatformOption('jsonb', $jsonb);
}
return $column;
}
/**
* PostgreSQL 9.4 puts parentheses around negative numeric default values that need to be stripped eventually.
*
* @param mixed $defaultValue
*
* @return mixed
*/
private function fixVersion94NegativeNumericDefaultValue($defaultValue)
{
if (strpos($defaultValue, '(') === 0) {
return trim($defaultValue, '()');
}
return $defaultValue;
}
}