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"yii\sphinx\IndexSchema' created. 

"yii\sphinx\Schema' reworked to drop inheritance from "yii\db".
tags/2.0.0-beta
Paul Klimov 11 years ago
parent
5a1b526ae8
commit
7cc182fc72
2 changed files with 443 additions and 21 deletions
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  1. 82
      extensions/sphinx/IndexSchema.php
  2. 382
      extensions/sphinx/Schema.php

82
extensions/sphinx/IndexSchema.php
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@ -0,0 +1,82 @@
<?php
/**
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
namespace yii\sphinx;
use yii\base\Object;
use yii\base\InvalidParamException;
/**
* IndexSchema represents the metadata of a Sphinx index.
*
* @property array $columnNames List of column names. This property is read-only.
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
class IndexSchema extends Object
{
/**
* @var string name of the schema that this index belongs to.
*/
public $schemaName;
/**
* @var string name of this index.
*/
public $name;
/**
* @var string[] primary keys of this index.
*/
public $primaryKey = [];
/**
* @var ColumnSchema[] column metadata of this index. Each array element is a [[ColumnSchema]] object, indexed by column names.
*/
public $columns = [];
/**
* Gets the named column metadata.
* This is a convenient method for retrieving a named column even if it does not exist.
* @param string $name column name
* @return ColumnSchema metadata of the named column. Null if the named column does not exist.
*/
public function getColumn($name)
{
return isset($this->columns[$name]) ? $this->columns[$name] : null;
}
/**
* Returns the names of all columns in this table.
* @return array list of column names
*/
public function getColumnNames()
{
return array_keys($this->columns);
}
/**
* Manually specifies the primary key for this table.
* @param string|array $keys the primary key (can be composite)
* @throws InvalidParamException if the specified key cannot be found in the table.
*/
public function fixPrimaryKey($keys)
{
if (!is_array($keys)) {
$keys = [$keys];
}
$this->primaryKey = $keys;
foreach ($this->columns as $column) {
$column->isPrimaryKey = false;
}
foreach ($keys as $key) {
if (isset($this->columns[$key])) {
$this->columns[$key]->isPrimaryKey = true;
} else {
throw new InvalidParamException("Primary key '$key' cannot be found in index '{$this->name}'.");
}
}
}
}

382
extensions/sphinx/Schema.php
Unescape View File

@ -7,17 +7,48 @@
namespace yii\sphinx;
use yii\db\TableSchema;
use yii\base\Object;
use yii\caching\Cache;
use Yii;
use yii\caching\GroupDependency;
/**
* Class Schema
* Schema represents the Sphinx schema information.
*
* @author Paul Klimov <klimov.paul@gmail.com>
* @since 2.0
*/
class Schema extends \yii\db\mysql\Schema
class Schema extends Object
{
/**
* The followings are the supported abstract column data types.
*/
const TYPE_PK = 'pk';
const TYPE_STRING = 'string';
const TYPE_INTEGER = 'integer';
const TYPE_BIGINT = 'bigint';
const TYPE_FLOAT = 'float';
const TYPE_TIMESTAMP = 'timestamp';
const TYPE_BOOLEAN = 'boolean';
/**
* @var Connection the Sphinx connection
*/
public $db;
/**
* @var array list of ALL index names in the Sphinx
*/
private $_indexNames = [];
/**
* @var array list of loaded index metadata (index name => IndexSchema)
*/
private $_indexes = [];
/**
* @var QueryBuilder the query builder for this Sphinx connection
*/
private $_builder;
/**
* @var array mapping from physical column types (keys) to abstract column types (values)
*/
public $typeMap = [
@ -35,8 +66,200 @@ class Schema extends \yii\db\mysql\Schema
];
/**
* Creates a query builder for the database.
* This method may be overridden by child classes to create a DBMS-specific query builder.
* Loads the metadata for the specified index.
* @param string $name index name
* @return IndexSchema driver dependent index metadata. Null if the index does not exist.
*/
protected function loadTableSchema($name)
{
$index = new IndexSchema;
$this->resolveIndexNames($index, $name);
if ($this->findColumns($index)) {
return $index;
} else {
return null;
}
}
/**
* Resolves the index name and schema name (if any).
* @param IndexSchema $index the index metadata object
* @param string $name the index name
*/
protected function resolveIndexNames($index, $name)
{
$parts = explode('.', str_replace('`', '', $name));
if (isset($parts[1])) {
$index->schemaName = $parts[0];
$index->name = $parts[1];
} else {
$index->name = $parts[0];
}
}
/**
* Obtains the metadata for the named index.
* @param string $name index name. The index name may contain schema name if any. Do not quote the index name.
* @param boolean $refresh whether to reload the index schema even if it is found in the cache.
* @return IndexSchema index metadata. Null if the named index does not exist.
*/
public function getIndexSchema($name, $refresh = false)
{
if (isset($this->_indexes[$name]) && !$refresh) {
return $this->_indexes[$name];
}
$db = $this->db;
$realName = $this->getRawIndexName($name);
if ($db->enableSchemaCache && !in_array($name, $db->schemaCacheExclude, true)) {
/** @var $cache Cache */
$cache = is_string($db->schemaCache) ? Yii::$app->getComponent($db->schemaCache) : $db->schemaCache;
if ($cache instanceof Cache) {
$key = $this->getCacheKey($name);
if ($refresh || ($index = $cache->get($key)) === false) {
$index = $this->loadTableSchema($realName);
if ($index !== null) {
$cache->set($key, $index, $db->schemaCacheDuration, new GroupDependency($this->getCacheGroup()));
}
}
return $this->_indexes[$name] = $index;
}
}
return $this->_indexes[$name] = $index = $this->loadTableSchema($realName);
}
/**
* Returns the cache key for the specified index name.
* @param string $name the index name
* @return mixed the cache key
*/
protected function getCacheKey($name)
{
return [
__CLASS__,
$this->db->dsn,
$this->db->username,
$name,
];
}
/**
* Returns the cache group name.
* This allows [[refresh()]] to invalidate all cached index schemas.
* @return string the cache group name
*/
protected function getCacheGroup()
{
return md5(serialize([
__CLASS__,
$this->db->dsn,
$this->db->username,
]));
}
/**
* Returns the metadata for all indexes in the database.
* @param string $schema the schema of the indexes. Defaults to empty string, meaning the current or default schema name.
* @param boolean $refresh whether to fetch the latest available index schemas. If this is false,
* cached data may be returned if available.
* @return IndexSchema[] the metadata for all indexes in the Sphinx.
* Each array element is an instance of [[IndexSchema]] or its child class.
*/
public function getTableSchemas($schema = '', $refresh = false)
{
$indexes = [];
foreach ($this->getIndexNames($schema, $refresh) as $name) {
if ($schema !== '') {
$name = $schema . '.' . $name;
}
if (($index = $this->getIndexSchema($name, $refresh)) !== null) {
$indexes[] = $index;
}
}
return $indexes;
}
/**
* Returns all index names in the database.
* @param string $schema the schema of the indexes. Defaults to empty string, meaning the current or default schema name.
* If not empty, the returned index names will be prefixed with the schema name.
* @param boolean $refresh whether to fetch the latest available index names. If this is false,
* index names fetched previously (if available) will be returned.
* @return string[] all index names in the database.
*/
public function getIndexNames($schema = '', $refresh = false)
{
if (!isset($this->_indexNames[$schema]) || $refresh) {
$this->_indexNames[$schema] = $this->findIndexNames($schema);
}
return $this->_indexNames[$schema];
}
/**
* Returns all index names in the database.
* @param string $schema the schema of the indexes. Defaults to empty string, meaning the current or default schema.
* @return array all index names in the database. The names have NO schema name prefix.
*/
protected function findIndexNames($schema = '')
{
$sql = 'SHOW TABLES';
if ($schema !== '') {
$sql .= ' FROM ' . $this->quoteSimpleIndexName($schema);
}
return $this->db->createCommand($sql)->queryColumn();
}
/**
* @return QueryBuilder the query builder for this connection.
*/
public function getQueryBuilder()
{
if ($this->_builder === null) {
$this->_builder = $this->createQueryBuilder();
}
return $this->_builder;
}
/**
* Determines the PDO type for the given PHP data value.
* @param mixed $data the data whose PDO type is to be determined
* @return integer the PDO type
* @see http://www.php.net/manual/en/pdo.constants.php
*/
public function getPdoType($data)
{
static $typeMap = [
// php type => PDO type
'boolean' => \PDO::PARAM_BOOL,
'integer' => \PDO::PARAM_INT,
'string' => \PDO::PARAM_STR,
'resource' => \PDO::PARAM_LOB,
'NULL' => \PDO::PARAM_NULL,
];
$type = gettype($data);
return isset($typeMap[$type]) ? $typeMap[$type] : \PDO::PARAM_STR;
}
/**
* Refreshes the schema.
* This method cleans up all cached index schemas so that they can be re-created later
* to reflect the Sphinx schema change.
*/
public function refresh()
{
/** @var $cache Cache */
$cache = is_string($this->db->schemaCache) ? Yii::$app->getComponent($this->db->schemaCache) : $this->db->schemaCache;
if ($this->db->enableSchemaCache && $cache instanceof Cache) {
GroupDependency::invalidate($cache, $this->getCacheGroup());
}
$this->_indexNames = [];
$this->_indexes = [];
}
/**
* Creates a query builder for the Sphinx.
* @return QueryBuilder query builder instance
*/
public function createQueryBuilder()
@ -45,31 +268,148 @@ class Schema extends \yii\db\mysql\Schema
}
/**
* Loads the metadata for the specified table.
* @param string $name table name
* @return TableSchema driver dependent table metadata. Null if the table does not exist.
* Quotes a string value for use in a query.
* Note that if the parameter is not a string, it will be returned without change.
* @param string $str string to be quoted
* @return string the properly quoted string
* @see http://www.php.net/manual/en/function.PDO-quote.php
*/
protected function loadTableSchema($name)
public function quoteValue($str)
{
$table = new TableSchema;
$this->resolveTableNames($table, $name);
if (!is_string($str)) {
return $str;
}
if ($this->findColumns($table)) {
return $table;
$this->db->open();
if (($value = $this->db->pdo->quote($str)) !== false) {
return $value;
} else { // the driver doesn't support quote (e.g. oci)
return "'" . addcslashes(str_replace("'", "''", $str), "\000\n\r\\\032") . "'";
}
}
/**
* Quotes a index name for use in a query.
* If the index name contains schema prefix, the prefix will also be properly quoted.
* If the index name is already quoted or contains '(' or '{{',
* then this method will do nothing.
* @param string $name index name
* @return string the properly quoted index name
* @see quoteSimpleTableName
*/
public function quoteIndexName($name)
{
if (strpos($name, '(') !== false || strpos($name, '{{') !== false) {
return $name;
}
if (strpos($name, '.') === false) {
return $this->quoteSimpleIndexName($name);
}
$parts = explode('.', $name);
foreach ($parts as $i => $part) {
$parts[$i] = $this->quoteSimpleIndexName($part);
}
return implode('.', $parts);
}
/**
* Quotes a column name for use in a query.
* If the column name contains prefix, the prefix will also be properly quoted.
* If the column name is already quoted or contains '(', '[[' or '{{',
* then this method will do nothing.
* @param string $name column name
* @return string the properly quoted column name
* @see quoteSimpleColumnName
*/
public function quoteColumnName($name)
{
if (strpos($name, '(') !== false || strpos($name, '[[') !== false || strpos($name, '{{') !== false) {
return $name;
}
if (($pos = strrpos($name, '.')) !== false) {
$prefix = $this->quoteIndexName(substr($name, 0, $pos)) . '.';
$name = substr($name, $pos + 1);
} else {
return null;
$prefix = '';
}
return $prefix . $this->quoteSimpleColumnName($name);
}
/**
* Quotes a index name for use in a query.
* A simple index name has no schema prefix.
* @param string $name index name
* @return string the properly quoted index name
*/
public function quoteSimpleIndexName($name)
{
return strpos($name, "`") !== false ? $name : "`" . $name . "`";
}
/**
* Quotes a column name for use in a query.
* A simple column name has no prefix.
* @param string $name column name
* @return string the properly quoted column name
*/
public function quoteSimpleColumnName($name)
{
return strpos($name, '`') !== false || $name === '*' ? $name : '`' . $name . '`';
}
/**
* Returns the actual name of a given index name.
* This method will strip off curly brackets from the given index name
* and replace the percentage character '%' with [[Connection::indexPrefix]].
* @param string $name the index name to be converted
* @return string the real name of the given index name
*/
public function getRawIndexName($name)
{
if (strpos($name, '{{') !== false) {
$name = preg_replace('/\\{\\{(.*?)\\}\\}/', '\1', $name);
return str_replace('%', $this->db->tablePrefix, $name);
} else {
return $name;
}
}
/**
* Extracts the PHP type from abstract DB type.
* @param ColumnSchema $column the column schema information
* @return string PHP type name
*/
protected function getColumnPhpType($column)
{
static $typeMap = [ // abstract type => php type
'smallint' => 'integer',
'integer' => 'integer',
'bigint' => 'integer',
'boolean' => 'boolean',
'float' => 'double',
];
if (isset($typeMap[$column->type])) {
if ($column->type === 'bigint') {
return PHP_INT_SIZE == 8 ? 'integer' : 'string';
} elseif ($column->type === 'integer') {
return PHP_INT_SIZE == 4 ? 'string' : 'integer';
} else {
return $typeMap[$column->type];
}
} else {
return 'string';
}
}
/**
* Collects the metadata of table columns.
* @param TableSchema $table the table metadata
* @return boolean whether the table exists in the database
* Collects the metadata of index columns.
* @param IndexSchema $index the index metadata
* @return boolean whether the index exists in the database
* @throws \Exception if DB query fails
*/
protected function findColumns($table)
protected function findColumns($index)
{
$sql = 'DESCRIBE ' . $this->quoteSimpleTableName($table->name);
$sql = 'DESCRIBE ' . $this->quoteSimpleIndexName($index->name);
try {
$columns = $this->db->createCommand($sql)->queryAll();
} catch (\Exception $e) {
@ -82,9 +422,9 @@ class Schema extends \yii\db\mysql\Schema
}
foreach ($columns as $info) {
$column = $this->loadColumnSchema($info);
$table->columns[$column->name] = $column;
$index->columns[$column->name] = $column;
if ($column->isPrimaryKey) {
$table->primaryKey[] = $column->name;
$index->primaryKey[] = $column->name;
}
}
return true;

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