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-rwxr-xr-xframework/Db/Schema/mssql/TMssqlSchema.php312
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diff --git a/framework/Db/Schema/mssql/TMssqlSchema.php b/framework/Db/Schema/mssql/TMssqlSchema.php
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--- a/framework/Db/Schema/mssql/TMssqlSchema.php
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-<?php
-/**
- * TMssqlSchema class file.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @author Christophe Boulain <Christophe.Boulain@gmail.com>
- * @link http://www.yiiframework.com/
- * @copyright Copyright &copy; 2008-2009 Yii Software LLC
- * @license http://www.yiiframework.com/license/
- */
-
-prado::using('System.Db.Schema.TDbSchema');
-
-/**
- * TMssqlSchema is the class for retrieving metadata information from a MS SQL Server database.
- *
- * @author Qiang Xue <qiang.xue@gmail.com>
- * @author Christophe Boulain <Christophe.Boulain@gmail.com>
- * @version $Id: TMssqlSchema.php 2679 2009-06-15 07:49:42Z Christophe.Boulain $
- * @package System.Db.Schema.mssql
- * @since 1.0.4
- */
-class TMssqlSchema extends TDbSchema
-{
- const DEFAULT_SCHEMA='dbo';
-
-
- /**
- * Quotes a table name for use in a query.
- * @param string table name
- * @return string the properly quoted table name
- */
- public function quoteTableName($name)
- {
- if (strpos($name,'.')===false)
- return '['.$name.']';
- $names=explode('.',$name);
- foreach ($names as &$n)
- $n = '['.$n.']';
- return implode('.',$names);
- }
-
- /**
- * Quotes a column name for use in a query.
- * @param string column name
- * @return string the properly quoted column name
- */
- public function quoteColumnName($name)
- {
- return '['.$name.']';
- }
-
- /**
- * Compares two table names.
- * The table names can be either quoted or unquoted. This method
- * will consider both cases.
- * @param string table name 1
- * @param string table name 2
- * @return boolean whether the two table names refer to the same table.
- */
- public function compareTableNames($name1,$name2)
- {
- $name1=str_replace(array('[',']'),'',$name1);
- $name1=str_replace(array('[',']'),'',$name2);
- return parent::compareTableNames(strtolower($name1),strtolower($name2));
- }
-
- /**
- * Creates a table instance representing the metadata for the named table.
- * @return CMysqlTableSchema driver dependent table metadata. Null if the table does not exist.
- */
- protected function createTable($name)
- {
- $table=new TMssqlTableSchema;
- $this->resolveTableNames($table,$name);
- //if (!in_array($table->name, $this->tableNames)) return null;
- $table->primaryKey=$this->findPrimaryKey($table);
- $table->foreignKeys=$this->findForeignKeys($table);
- if($this->findColumns($table))
- {
- return $table;
- }
- else
- return null;
- }
-
- /**
- * Generates various kinds of table names.
- * @param CMysqlTableSchema the table instance
- * @param string the unquoted table name
- */
- protected function resolveTableNames($table,$name)
- {
- $parts=explode('.',str_replace(array('[',']'),'',$name));
- if(($c=count($parts))==3)
- {
- // Catalog name, schema name and table name provided
- $table->catalogName=$parts[0];
- $table->schemaName=$parts[1];
- $table->name=$parts[2];
- $table->rawName=$this->quoteTableName($table->catalogName).'.'.$this->quoteTableName($table->schemaName).'.'.$this->quoteTableName($table->name);
- }
- elseif ($c==2)
- {
- // Only schema name and table name provided
- $table->name=$parts[1];
- $table->schemaName=$parts[0];
- $table->rawName=$this->quoteTableName($table->schemaName).'.'.$this->quoteTableName($table->name);
- }
- else
- {
- // Only the name given, we need to get at least the schema name
- //if (empty($this->_schemaNames)) $this->findTableNames();
- $table->name=$parts[0];
- $table->schemaName=self::DEFAULT_SCHEMA;
- $table->rawName=$this->quoteTableName($table->schemaName).'.'.$this->quoteTableName($table->name);
- }
- }
-
- /**
- * Gets the primary key column(s) details for the given table.
- * @param TMssqlTableSchema table
- * @return mixed primary keys (null if no pk, string if only 1 column pk, or array if composite pk)
- */
- protected function findPrimaryKey($table)
- {
- $kcu='INFORMATION_SCHEMA.KEY_COLUMN_USAGE';
- $tc='INFORMATION_SCHEMA.TABLE_CONSTRAINTS';
- if (isset($table->catalogName))
- {
- $kcu=$table->catalogName.'.'.$kcu;
- $tc=$table->catalogName.'.'.$tc;
- }
-
- $sql = <<<EOD
- SELECT k.column_name field_name
- FROM {$this->quoteTableName($kcu)} k
- LEFT JOIN {$this->quoteTableName($tc)} c
- ON k.table_name = c.table_name
- AND k.constraint_name = c.constraint_name
- WHERE c.constraint_type ='PRIMARY KEY'
- AND k.table_name = :table
- AND k.table_schema = :schema
-EOD;
- $command = $this->getDbConnection()->createCommand($sql);
- $command->bindValue(':table', $table->name);
- $command->bindValue(':schema', $table->schemaName);
- $primary=$command->queryColumn();
- switch (count($primary))
- {
- case 0: // No primary key on table
- $primary=null;
- break;
- case 1: // Only 1 primary key
- $primary=$primary[0];
- break;
- }
- return $primary;
- }
-
- /**
- * Gets foreign relationship constraint keys and table name
- * @param TMssqlTableSchema table
- * @return array foreign relationship table name and keys.
- */
- protected function findForeignKeys($table)
- {
- $rc='INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS';
- $kcu='INFORMATION_SCHEMA.KEY_COLUMN_USAGE';
- if (isset($table->catalogName))
- {
- $kcu=$table->catalogName.'.'.$kcu;
- $rc=$table->catalogName.'.'.$rc;
- }
-
- //From http://msdn2.microsoft.com/en-us/library/aa175805(SQL.80).aspx
- $sql = <<<EOD
- SELECT
- KCU1.CONSTRAINT_NAME AS 'FK_CONSTRAINT_NAME'
- , KCU1.TABLE_NAME AS 'FK_TABLE_NAME'
- , KCU1.COLUMN_NAME AS 'FK_COLUMN_NAME'
- , KCU1.ORDINAL_POSITION AS 'FK_ORDINAL_POSITION'
- , KCU2.CONSTRAINT_NAME AS 'UQ_CONSTRAINT_NAME'
- , KCU2.TABLE_NAME AS 'UQ_TABLE_NAME'
- , KCU2.COLUMN_NAME AS 'UQ_COLUMN_NAME'
- , KCU2.ORDINAL_POSITION AS 'UQ_ORDINAL_POSITION'
- FROM {$this->quoteTableName($rc)} RC
- JOIN {$this->quoteTableName($kcu)} KCU1
- ON KCU1.CONSTRAINT_CATALOG = RC.CONSTRAINT_CATALOG
- AND KCU1.CONSTRAINT_SCHEMA = RC.CONSTRAINT_SCHEMA
- AND KCU1.CONSTRAINT_NAME = RC.CONSTRAINT_NAME
- JOIN {$this->quoteTableName($kcu)} KCU2
- ON KCU2.CONSTRAINT_CATALOG =
- RC.UNIQUE_CONSTRAINT_CATALOG
- AND KCU2.CONSTRAINT_SCHEMA =
- RC.UNIQUE_CONSTRAINT_SCHEMA
- AND KCU2.CONSTRAINT_NAME =
- RC.UNIQUE_CONSTRAINT_NAME
- AND KCU2.ORDINAL_POSITION = KCU1.ORDINAL_POSITION
- WHERE KCU1.TABLE_NAME = :table
-EOD;
- $command = $this->getDbConnection()->createCommand($sql);
- $command->bindValue(':table', $table->name);
- $fkeys=array();
- foreach($command->queryAll() as $info)
- {
- $fkeys[$info['FK_COLUMN_NAME']]=array($info['UQ_TABLE_NAME'],$info['UQ_COLUMN_NAME'],);
-
- }
- return $fkeys;
- }
-
-
- /**
- * Collects the table column metadata.
- * @param CMysqlTableSchema the table metadata
- * @return boolean whether the table exists in the database
- */
- protected function findColumns($table)
- {
- $where=array();
- $where[]="TABLE_NAME='".$table->name."'";
- if (isset($table->catalogName))
- $where[]="TABLE_CATALOG='".$table->catalogName."'";
- if (isset($table->schemaName))
- $where[]="TABLE_SCHEMA='".$table->schemaName."'";
- $sql="SELECT *, columnproperty(object_id(table_schema+'.'+table_name), column_name, 'IsIdentity') as IsIdentity ".
- "FROM INFORMATION_SCHEMA.COLUMNS WHERE ".join(' AND ',$where);
- if (($columns=$this->getDbConnection()->createCommand($sql)->queryAll())===array())
- return false;
-
- foreach($columns as $column)
- {
- $c=$this->createColumn($column);
- if (is_array($table->primaryKey))
- $c->isPrimaryKey=in_array($c->name, $table->primaryKey);
- else
- $c->isPrimaryKey=strcasecmp($c->name,$table->primaryKey)===0;
-
- $c->isForeignKey=isset($table->foreignKeys[$c->name]);
- $table->columns[$c->name]=$c;
- if ($column['IsIdentity']==1 && $table->sequenceName===null)
- $table->sequenceName='';
-
- }
- return true;
- }
-
- /**
- * Creates a table column.
- * @param array column metadata
- * @return TDbColumnSchema normalized column metadata
- */
- protected function createColumn($column)
- {
- $c=new TMssqlColumnSchema;
- $c->name=$column['COLUMN_NAME'];
- $c->rawName=$this->quoteColumnName($c->name);
- $c->allowNull=$column['IS_NULLABLE']=='YES';
- if ($column['NUMERIC_PRECISION_RADIX']!==null)
- {
- // We have a numeric datatype
- $c->size=$c->precision=$column['NUMERIC_PRECISION']!==null?(int)$column['NUMERIC_PRECISION']:null;
- $c->scale=$column['NUMERIC_SCALE']!==null?(int)$column['NUMERIC_SCALE']:null;
- }
- elseif ($column['DATA_TYPE']=='image' || $column['DATA_TYPE']=='text')
- $c->size=$c->precision=null;
- else
- $c->size=$c->precision=($column['CHARACTER_MAXIMUM_LENGTH']!== null)?(int)$column['CHARACTER_MAXIMUM_LENGTH']:null;
-
- $c->init($column['DATA_TYPE'],$column['COLUMN_DEFAULT']);
- return $c;
- }
-
- /**
- * Returns all table names in the database.
- * @return array all table names in the database.
- * @since 1.0.4
- */
- protected function findTableNames($schema='')
- {
- if($schema==='')
- $schema=self::DEFAULT_SCHEMA;
- $sql=<<<EOD
-SELECT TABLE_NAME, TABLE_SCHEMA FROM [INFORMATION_SCHEMA].[TABLES]
-WHERE TABLE_TYPE='BASE TABLE' AND TABLE_SCHEMA=:schema
-EOD;
- $command=$this->getDbConnection()->createCommand($sql);
- $command->bindParam(":schema", $schema);
- $rows=$command->queryAll();
- $names=array();
- foreach ($rows as $row)
- {
- if ($schema == self::DEFAULT_SCHEMA)
- $names[]=$row['TABLE_NAME'];
- else
- $names[]=$schema.'.'.$row['TABLE_SCHEMA'].'.'.$row['TABLE_NAME'];
- }
-
- return $names;
- }
-
- /**
- * Creates a command builder for the database.
- * This method overrides parent implementation in order to create a MSSQL specific command builder
- * @return TDbCommandBuilder command builder instance
- */
- protected function createCommandBuilder()
- {
- return new TMssqlCommandBuilder($this);
- }
-}
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