/**
* @param BaseObject $source Source object.
* @param BaseObject $target Target object.
*
* @return void
*/
protected function handleChange(BaseObject $source, BaseObject $target)
{
if ($source instanceof Sequence || $source instanceof Procedure) {
$this->conditions[""][] = $this->multiLinePhp("\t\t\$DB->Query(\"", $source->getDropDdl($this->dbType), "\", true);\n") . $this->multiLinePhp("\t\t\$DB->Query(\"", $target->getCreateDdl($this->dbType), "\", true);\n");
$dropStmt = $this->createStatement("\$DB->Query(\"", $source->getDropDdl($this->dbType), "\", true);");
$createStmt = $this->createStatement("\$DB->Query(\"", $target->getCreateDdl($this->dbType), "\", true);");
$stmt = new Php\Statement();
$stmt->merge($dropStmt);
$stmt->merge($createStmt);
$stmt->addCondition("\$updater->CanUpdateDatabase()");
$stmt->addCondition("\$DB->type == \"" . EscapePHPString($this->dbType) . "\"");
$stmt->addCondition("\$updater->TableExists(\"" . EscapePHPString($this->tableCheck->getLowercasedName()) . "\")");
} elseif ($target instanceof Column) {
$ddl = $source->getModifyDdl($target, $this->dbType);
$predicate = "\$updater->TableExists(\"" . EscapePHPString($source->parent->name) . "\")";
$cond = "\t\tif ({$predicate})\n";
$predicate2 = "\$DB->Query(\"SELECT " . EscapePHPString($source->name) . " FROM " . EscapePHPString($source->parent->name) . " WHERE 1=0\", true)";
$this->conditions[$cond][] = "\t\t\tif ({$predicate2})\n" . "\t\t\t{\n" . $this->multiLinePhp("\t\t\t\t\$DB->Query(\"", $ddl, "\");\n") . "\t\t\t}\n";
$stmt = $this->createStatement("\$DB->Query(\"", $ddl, "\");");
$stmt->addCondition("\$updater->CanUpdateDatabase()");
$stmt->addCondition("\$DB->type == \"" . EscapePHPString($this->dbType) . "\"");
$stmt->addCondition("\$updater->TableExists(\"" . EscapePHPString($source->parent->getLowercasedName()) . "\")");
$stmt->addCondition("\$DB->Query(\"SELECT " . EscapePHPString($source->name) . " FROM " . EscapePHPString($source->parent->getLowercasedName()) . " WHERE 1=0\", true)");
} elseif ($source instanceof Index) {
$this->conditions["\t\tif (\$updater->TableExists(\"" . EscapePHPString($source->parent->name) . "\"))\n"][] = "\t\t\tif (\$DB->IndexExists(\"" . EscapePHPString($source->parent->name) . "\", array(" . $this->multiLinePhp("\"", $source->columns, "\", ") . ")))\n" . "\t\t\t{\n" . $this->multiLinePhp("\t\t\t\t\$DB->Query(\"", $source->getDropDdl($this->dbType), "\");\n") . $this->multiLinePhp("\t\t\t\t\$DB->Query(\"", $target->getCreateDdl($this->dbType), "\");\n") . "\t\t\t}\n";
$dropStmt = $this->createStatement("\$DB->Query(\"", $source->getDropDdl($this->dbType), "\", true);");
$createStmt = $this->createStatement("\$DB->Query(\"", $target->getCreateDdl($this->dbType), "\", true);");
$stmt = new Php\Statement();
$stmt->merge($dropStmt);
$stmt->merge($createStmt);
$stmt->addCondition("\$updater->CanUpdateDatabase()");
$stmt->addCondition("\$DB->type == \"" . EscapePHPString($this->dbType) . "\"");
$stmt->addCondition("\$updater->TableExists(\"" . EscapePHPString($source->parent->getLowercasedName()) . "\")");
$stmt->addCondition("\$DB->IndexExists(\"" . EscapePHPString($source->parent->getLowercasedName()) . "\", array(" . $this->multiLinePhp("\"", $source->columns, "\", ") . "))");
$stmt->addCondition("!\$DB->IndexExists(\"" . EscapePHPString($target->parent->getLowercasedName()) . "\", array(" . $this->multiLinePhp("\"", $target->columns, "\", ") . "))");
} elseif ($source instanceof Trigger || $source instanceof Constraint) {
$ddl = $source->getModifyDdl($target, $this->dbType);
$predicate = "\$updater->TableExists(\"" . EscapePHPString($source->parent->name) . "\")";
$cond = "\t\tif ({$predicate})\n";
$this->conditions[$cond][] = $this->multiLinePhp("\t\t\t\$DB->Query(\"", $ddl, "\", true);\n");
$stmt = $this->createStatement("\$DB->Query(\"", $ddl, "\", true);");
$stmt->addCondition("\$updater->CanUpdateDatabase()");
$stmt->addCondition("\$DB->type == \"" . EscapePHPString($this->dbType) . "\"");
$stmt->addCondition("\$updater->TableExists(\"" . EscapePHPString($source->parent->getLowercasedName()) . "\")");
} else {
$this->conditions[""][] = "\t\t//change for " . get_class($source) . " not supported yet\n";
$stmt = $this->createStatement("", "//change for " . get_class($source) . " not supported yet", "");
}
if ($stmt) {
$this->statements[] = $stmt;
}
}
/**
* @param Tokenizer $tokenizer Statement tokens.
*
* @return void
* @throws NotSupportedException
*/
protected function executeCreateTable(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
$this->tables->add(Table::create($tokenizer));
}
/**
* Creates table object from tokens.
* <p>
* Current position should point to the name of the sequence or 'if not exists' clause.
*
* @param Tokenizer $tokenizer Tokens collection.
*
* @return Table
* @throws NotSupportedException
*/
public static function create(Tokenizer $tokenizer)
{
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('IF')) {
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('NOT')) {
$tokenizer->skipWhiteSpace();
}
if ($tokenizer->testUpperText('EXISTS')) {
$tokenizer->skipWhiteSpace();
}
}
$table = new Table($tokenizer->getCurrentToken()->text);
$tokenizer->nextToken();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testText('(')) {
$tokenizer->skipWhiteSpace();
$token = $tokenizer->getCurrentToken();
$level = $token->level;
do {
if ($tokenizer->testUpperText('INDEX') || $tokenizer->testUpperText('KEY')) {
$tokenizer->skipWhiteSpace();
$table->createIndex($tokenizer, false);
} elseif ($tokenizer->testUpperText('UNIQUE')) {
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('KEY')) {
$tokenizer->skipWhiteSpace();
} elseif ($tokenizer->testUpperText('INDEX')) {
$tokenizer->skipWhiteSpace();
}
$table->createIndex($tokenizer, true);
} elseif ($tokenizer->testUpperText('PRIMARY')) {
$tokenizer->skipWhiteSpace();
if (!$tokenizer->testUpperText('KEY')) {
throw new NotSupportedException("'KEY' expected. line:" . $tokenizer->getCurrentToken()->line);
}
$tokenizer->skipWhiteSpace();
$table->createIndex($tokenizer, true);
} elseif ($tokenizer->testUpperText('CONSTRAINT')) {
$tokenizer->skipWhiteSpace();
$constraintName = $tokenizer->getCurrentToken()->text;
$tokenizer->nextToken();
$tokenizer->skipWhiteSpace();
if ($tokenizer->testUpperText('PRIMARY') || $tokenizer->testUpperText('UNIQUE')) {
$tokenizer->putBack();
$table->createConstraint($tokenizer, $constraintName);
} elseif ($tokenizer->testUpperText('FOREIGN')) {
$tokenizer->putBack();
$table->createConstraint($tokenizer, $constraintName);
} else {
throw new NotSupportedException("'PRIMARY KEY' expected. line:" . $tokenizer->getCurrentToken()->line);
}
} elseif ($tokenizer->testUpperText(')')) {
break;
} else {
$table->createColumn($tokenizer);
}
$tokenizer->skipWhiteSpace();
$token = $tokenizer->getCurrentToken();
if ($token->level == $level && $token->text == ',') {
$token = $tokenizer->nextToken();
} elseif ($token->level < $level && $token->text == ')') {
$tokenizer->nextToken();
break;
} else {
throw new NotSupportedException("',' or ')' expected. line:" . $token->line);
}
$tokenizer->skipWhiteSpace();
} while (!$tokenizer->endOfInput() && $token->level >= $level);
$suffix = '';
while (!$tokenizer->endOfInput()) {
$suffix .= $tokenizer->getCurrentToken()->text;
$tokenizer->nextToken();
}
if ($suffix) {
$table->setBody($suffix);
}
} else {
throw new NotSupportedException("'(' expected. line:" . $tokenizer->getCurrentToken()->line);
}
return $table;
}
