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adding zend project folders into old campcaster.

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naomiaro 2010-12-07 14:19:27 -05:00
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166
library/propel/generator/lib/builder/sql/DDLBuilder.php Normal file
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<?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 'builder/DataModelBuilder.php';
/**
* Baseclass for SQL DDL-building classes.
*
* DDL-building classes are those that build all the SQL DDL for a single table.
*
* @author Hans Lellelid <hans@xmpl.org>
* @package propel.generator.builder.sql
*/
abstract class DDLBuilder extends DataModelBuilder
{
/**
* Builds the SQL for current table and returns it as a string.
*
* This is the main entry point and defines a basic structure that classes should follow.
* In most cases this method will not need to be overridden by subclasses.
*
* @return string The resulting SQL DDL.
*/
public function build()
{
$script = "";
$this->addTable($script);
$this->addIndices($script);
$this->addForeignKeys($script);
return $script;
}
/**
* Gets the name to use for creating a sequence for the current table.
*
* This will create a new name or use one specified in an id-method-parameter
* tag, if specified.
*
* @return string Sequence name for this table.
*/
public function getSequenceName()
{
$table = $this->getTable();
static $longNamesMap = array();
$result = null;
if ($table->getIdMethod() == IDMethod::NATIVE) {
$idMethodParams = $table->getIdMethodParameters();
$maxIdentifierLength = $table->getDatabase()->getPlatform()->getMaxColumnNameLength();
if (empty($idMethodParams)) {
if (strlen($table->getName() . "_SEQ") > $maxIdentifierLength) {
if (!isset($longNamesMap[$table->getName()])) {
$longNamesMap[$table->getName()] = strval(count($longNamesMap) + 1);
}
$result = substr($table->getName(), 0, $maxIdentifierLength - strlen("_SEQ_" . $longNamesMap[$table->getName()])) . "_SEQ_" . $longNamesMap[$table->getName()];
}
else {
$result = substr($table->getName(), 0, $maxIdentifierLength -4) . "_SEQ";
}
} else {
$result = substr($idMethodParams[0]->getValue(), 0, $maxIdentifierLength);
}
}
return $result;
}
/**
* Builds the DDL SQL for a Column object.
* @return string
*/
public function getColumnDDL(Column $col)
{
$platform = $this->getPlatform();
$domain = $col->getDomain();
$sb = "";
$sb .= $this->quoteIdentifier($col->getName()) . " ";
$sb .= $domain->getSqlType();
if ($platform->hasSize($domain->getSqlType())) {
$sb .= $domain->printSize();
}
$sb .= " ";
$sb .= $col->getDefaultSetting() . " ";
$sb .= $col->getNotNullString() . " ";
$sb .= $col->getAutoIncrementString();
return trim($sb);
}
/**
* Creates a delimiter-delimited string list of column names, quoted using quoteIdentifier().
* @param array Column[] or string[]
* @param string $delim The delimiter to use in separating the column names.
* @return string
*/
public function getColumnList($columns, $delim=',')
{
$list = array();
foreach ($columns as $col) {
if ($col instanceof Column) {
$col = $col->getName();
}
$list[] = $this->quoteIdentifier($col);
}
return implode($delim, $list);
}
/**
* This function adds any _database_ start/initialization SQL.
* This is designed to be called for a database, not a specific table, hence it is static.
* @return string The DDL is returned as astring.
*/
public static function getDatabaseStartDDL()
{
return '';
}
/**
* This function adds any _database_ end/cleanup SQL.
* This is designed to be called for a database, not a specific table, hence it is static.
* @return string The DDL is returned as astring.
*/
public static function getDatabaseEndDDL()
{
return '';
}
/**
* Resets any static variables between building a SQL file for a database.
*
* Theoretically, Propel could build multiple .sql files for multiple databases; in
* many cases we don't want static values to persist between these. This method provides
* a way to clear out static values between iterations, if the subclasses choose to implement
* it.
*/
public static function reset()
{
// nothing by default
}
/**
* Adds table definition.
* @param string &$script The script will be modified in this method.
*/
abstract protected function addTable(&$script);
/**
* Adds index definitions.
* @param string &$script The script will be modified in this method.
*/
abstract protected function addIndices(&$script);
/**
* Adds foreign key constraint definitions.
* @param string &$script The script will be modified in this method.
*/
abstract protected function addForeignKeys(&$script);
}