sintonia/library/propel/generator/lib/reverse/mssql/MssqlSchemaParser.php

241 lines
7.1 KiB
PHP

<?php
/**
* This file is part of the Propel package.
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @license MIT License
*/
require_once 'reverse/BaseSchemaParser.php';
/**
* Microsoft SQL Server database schema parser.
*
* @author Hans Lellelid <hans@xmpl.org>
* @version $Revision: 1612 $
* @package propel.generator.reverse.mssql
*/
class MssqlSchemaParser extends BaseSchemaParser
{
/**
* Map MSSQL native types to Propel types.
* @var array
*/
private static $mssqlTypeMap = array(
"binary" => PropelTypes::BINARY,
"bit" => PropelTypes::BOOLEAN,
"char" => PropelTypes::CHAR,
"datetime" => PropelTypes::TIMESTAMP,
"decimal() identity" => PropelTypes::DECIMAL,
"decimal" => PropelTypes::DECIMAL,
"image" => PropelTypes::LONGVARBINARY,
"int" => PropelTypes::INTEGER,
"int identity" => PropelTypes::INTEGER,
"integer" => PropelTypes::INTEGER,
"money" => PropelTypes::DECIMAL,
"nchar" => PropelTypes::CHAR,
"ntext" => PropelTypes::LONGVARCHAR,
"numeric() identity" => PropelTypes::NUMERIC,
"numeric" => PropelTypes::NUMERIC,
"nvarchar" => PropelTypes::VARCHAR,
"real" => PropelTypes::REAL,
"float" => PropelTypes::FLOAT,
"smalldatetime" => PropelTypes::TIMESTAMP,
"smallint" => PropelTypes::SMALLINT,
"smallint identity" => PropelTypes::SMALLINT,
"smallmoney" => PropelTypes::DECIMAL,
"sysname" => PropelTypes::VARCHAR,
"text" => PropelTypes::LONGVARCHAR,
"timestamp" => PropelTypes::BINARY,
"tinyint identity" => PropelTypes::TINYINT,
"tinyint" => PropelTypes::TINYINT,
"uniqueidentifier" => PropelTypes::CHAR,
"varbinary" => PropelTypes::VARBINARY,
"varchar" => PropelTypes::VARCHAR,
"uniqueidentifier" => PropelTypes::CHAR,
// SQL Server 2000 only
"bigint identity" => PropelTypes::BIGINT,
"bigint" => PropelTypes::BIGINT,
"sql_variant" => PropelTypes::VARCHAR,
);
/**
* Gets a type mapping from native types to Propel types
*
* @return array
*/
protected function getTypeMapping()
{
return self::$mssqlTypeMap;
}
/**
*
*/
public function parse(Database $database, PDOTask $task = null)
{
$stmt = $this->dbh->query("SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_NAME <> 'dtproperties'");
// First load the tables (important that this happen before filling out details of tables)
$tables = array();
while ($row = $stmt->fetch(PDO::FETCH_NUM)) {
$name = $row[0];
$table = new Table($name);
$database->addTable($table);
$tables[] = $table;
}
// Now populate only columns.
foreach ($tables as $table) {
$this->addColumns($table);
}
// Now add indexes and constraints.
foreach ($tables as $table) {
$this->addForeignKeys($table);
$this->addIndexes($table);
$this->addPrimaryKey($table);
}
return count($tables);
}
/**
* Adds Columns to the specified table.
*
* @param Table $table The Table model class to add columns to.
*/
protected function addColumns(Table $table)
{
$stmt = $this->dbh->query("sp_columns '" . $table->getName() . "'");
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$name = $row['COLUMN_NAME'];
$type = $row['TYPE_NAME'];
$size = $row['LENGTH'];
$is_nullable = $row['NULLABLE'];
$default = $row['COLUMN_DEF'];
$precision = $row['PRECISION'];
$scale = $row['SCALE'];
$autoincrement = false;
if (strtolower($type) == "int identity") {
$autoincrement = true;
}
$propelType = $this->getMappedPropelType($type);
if (!$propelType) {
$propelType = Column::DEFAULT_TYPE;
$this->warn("Column [" . $table->getName() . "." . $name. "] has a column type (".$type.") that Propel does not support.");
}
$column = new Column($name);
$column->setTable($table);
$column->setDomainForType($propelType);
// We may want to provide an option to include this:
// $column->getDomain()->replaceSqlType($type);
$column->getDomain()->replaceSize($size);
$column->getDomain()->replaceScale($scale);
if ($default !== null) {
$column->getDomain()->setDefaultValue(new ColumnDefaultValue($default, ColumnDefaultValue::TYPE_VALUE));
}
$column->setAutoIncrement($autoincrement);
$column->setNotNull(!$is_nullable);
$table->addColumn($column);
}
} // addColumn()
/**
* Load foreign keys for this table.
*/
protected function addForeignKeys(Table $table)
{
$database = $table->getDatabase();
$stmt = $this->dbh->query("SELECT ccu1.TABLE_NAME, ccu1.COLUMN_NAME, ccu2.TABLE_NAME AS FK_TABLE_NAME, ccu2.COLUMN_NAME AS FK_COLUMN_NAME
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu1 INNER JOIN
INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc1 ON tc1.CONSTRAINT_NAME = ccu1.CONSTRAINT_NAME AND
CONSTRAINT_TYPE = 'Foreign Key' INNER JOIN
INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS rc1 ON rc1.CONSTRAINT_NAME = tc1.CONSTRAINT_NAME INNER JOIN
INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu2 ON ccu2.CONSTRAINT_NAME = rc1.UNIQUE_CONSTRAINT_NAME
WHERE (ccu1.table_name = '".$table->getName()."')");
$row = $stmt->fetch(PDO::FETCH_NUM);
$foreignKeys = array(); // local store to avoid duplicates
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$lcol = $row['COLUMN_NAME'];
$ftbl = $row['FK_TABLE_NAME'];
$fcol = $row['FK_COLUMN_NAME'];
$foreignTable = $database->getTable($ftbl);
$foreignColumn = $foreignTable->getColumn($fcol);
$localColumn = $table->getColumn($lcol);
if (!isset($foreignKeys[$name])) {
$fk = new ForeignKey($name);
$fk->setForeignTableName($foreignTable->getName());
//$fk->setOnDelete($fkactions['ON DELETE']);
//$fk->setOnUpdate($fkactions['ON UPDATE']);
$table->addForeignKey($fk);
$foreignKeys[$name] = $fk;
}
$foreignKeys[$name]->addReference($localColumn, $foreignColumn);
}
}
/**
* Load indexes for this table
*/
protected function addIndexes(Table $table)
{
$stmt = $this->dbh->query("sp_indexes_rowset " . $table->getName());
$indexes = array();
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$colName = $row["COLUMN_NAME"];
$name = $row['INDEX_NAME'];
// FIXME -- Add UNIQUE support
if (!isset($indexes[$name])) {
$indexes[$name] = new Index($name);
$table->addIndex($indexes[$name]);
}
$indexes[$name]->addColumn($table->getColumn($colName));
}
}
/**
* Loads the primary key for this table.
*/
protected function addPrimaryKey(Table $table)
{
$stmt = $this->dbh->query("SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
INNER JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ON
INFORMATION_SCHEMA.TABLE_CONSTRAINTS.CONSTRAINT_NAME = INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE.constraint_name
WHERE (INFORMATION_SCHEMA.TABLE_CONSTRAINTS.CONSTRAINT_TYPE = 'PRIMARY KEY') AND
(INFORMATION_SCHEMA.TABLE_CONSTRAINTS.TABLE_NAME = '".$table->getName()."')");
// Loop through the returned results, grouping the same key_name together
// adding each column for that key.
while ($row = $stmt->fetch(PDO::FETCH_NUM)) {
$name = $row[0];
$table->getColumn($name)->setPrimaryKey(true);
}
}
}