/**
* Outputs DDL for differences in functions
*
* @param $ofs1 stage1 output pointer
* @param $ofs3 stage3 output pointer
* @param $old_schema original schema
* @param $new_schema new schema
*/
public static function diff_functions($ofs1, $ofs3, $old_schema, $new_schema)
{
// drop functions that no longer exist in stage 3
if ($old_schema != null) {
foreach (dbx::get_functions($old_schema) as $old_function) {
if (!mysql5_schema::contains_function($new_schema, mysql5_function::get_declaration($new_schema, $old_function))) {
$ofs3->write(mysql5_function::get_drop_sql($old_schema, $old_function) . "\n");
}
}
}
// Add new functions and replace modified functions
foreach (dbx::get_functions($new_schema) as $new_function) {
$old_function = null;
if ($old_schema != null) {
$old_function = dbx::get_function($old_schema, $new_function['name'], mysql5_function::get_declaration($new_schema, $new_function));
}
if ($old_function == null || !mysql5_function::equals($new_schema, $new_function, $old_function, mysql5_diff::$ignore_function_whitespace)) {
$ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (isset($new_function['forceRedefine']) && strcasecmp($new_function['forceRedefine'], 'true') == 0) {
$ofs1->write("-- DBSteward insists on function recreation: {$new_schema['name']}.{$new_function['name']} has forceRedefine set to true\n");
$ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (mysql5_schema::contains_type($new_schema, $new_function['returns']) && mysql5_schema::contains_type($old_schema, $new_function['returns']) && !mysql5_type::equals(dbx::get_type($old_schema, $new_function['returns']), dbx::get_type($new_schema, $new_function['returns']))) {
$ofs1->write("-- Force function re-creation {$new_function['name']} for type: {$new_function['returns']}\n");
$ofs1->write(mysql5_function::get_creation_sql($new_schema, $new_function) . "\n");
}
}
}
}
}
protected static function drop_old_schemas($ofs)
{
$drop_sequences = array();
if (is_array(mysql5_diff::$old_table_dependency)) {
$deps = mysql5_diff::$old_table_dependency;
$processed_schemas = array();
foreach ($deps as $dep) {
$old_schema = $dep['schema'];
if (!dbx::get_schema(dbsteward::$new_database, $old_schema['name'])) {
// this schema is being dropped, drop all children objects in it
if (!in_array(trim($old_schema['name']), $processed_schemas)) {
// this schema hasn't been processed yet, go ahead and drop views, types, functions, sequences
// only do it once per schema
foreach ($old_schema->type as $node_type) {
$ofs->write(mysql5_type::get_drop_sql($old_schema, $node_type) . "\n");
}
foreach ($old_schema->function as $node_function) {
$ofs->write(mysql5_function::get_drop_sql($old_schema, $node_function) . "\n");
}
foreach ($old_schema->sequence as $node_sequence) {
$ofs->write(mysql5_sequence::get_drop_sql($old_schema, $node_sequence) . "\n");
}
$processed_schemas[] = trim($old_schema['name']);
}
if ($dep['table']['name'] === dbsteward::TABLE_DEPENDENCY_IGNORABLE_NAME) {
// don't do anything with this table, it is a magic internal DBSteward value
continue;
}
// constraints, indexes, triggers will be deleted along with the tables they're attached to
// tables will drop themselves later on
// $ofs->write(mysql5_table::get_drop_sql($old_schema, $dep['table']) . "\n");
$table_name = mysql5::get_fully_qualified_table_name($dep['schema']['name'], $dep['table']['name']);
$ofs->write("-- {$table_name} triggers, indexes, constraints will be implicitly dropped when the table is dropped\n");
$ofs->write("-- {$table_name} will be dropped later according to table dependency order\n");
// table sequences need dropped separately
foreach (mysql5_table::get_sequences_needed($old_schema, $dep['table']) as $node_sequence) {
$ofs->write(mysql5_sequence::get_drop_sql($old_schema, $node_sequence) . "\n");
}
}
}
} else {
foreach (dbsteward::$old_database->schema as $old_schema) {
if (!dbx::get_schema(dbsteward::$new_database, $old_schema['name'])) {
foreach ($old_schema->type as $node_type) {
$ofs->write(mysql5_type::get_drop_sql($old_schema, $node_type) . "\n");
}
foreach ($old_schema->function as $node_function) {
$ofs->write(mysql5_function::get_drop_sql($old_schema, $node_function) . "\n");
}
foreach ($old_schema->sequence as $node_sequence) {
$ofs->write(mysql5_sequence::get_drop_sql($old_schema, $node_sequence) . "\n");
}
foreach ($old_schema->table as $node_table) {
// tables will drop themselves later on
// $ofs->write(mysql5_table::get_drop_sql($old_schema, $node_table) . "\n");
$table_name = mysql5::get_fully_qualified_table_name($old_schema['name'], $node_table['name']);
$ofs->write("-- {$table_name} triggers, indexes, constraints will be implicitly dropped when the table is dropped\n");
$ofs->write("-- {$table_name} will be dropped later according to table dependency order\n");
foreach (mysql5_table::get_sequences_needed($old_schema, $node_table) as $node_sequence) {
$ofs->write(mysql5_sequence::get_drop_sql($old_schema, $node_sequence) . "\n");
}
}
}
}
}
}
public function testOtherFormats()
{
$xml = <<<XML
<schema name="test" owner="ROLE_OWNER">
<function name="test_fn" returns="text" securityDefiner="true">
<functionParameter name="a" type="text"/>
<functionParameter name="b" type="int"/>
<functionParameter name="c" type="date"/>
<functionDefinition language="tsql" sqlFormat="mssql10">
RETURN 'xyz';
</functionDefinition>
</function>
</schema>
XML;
$schema = new SimpleXMLElement($xml);
$this->assertEquals("-- Not dropping function 'test_fn' - no definitions for mysql5", trim(mysql5_function::get_drop_sql($schema, $schema->function)));
try {
mysql5_function::get_creation_sql($schema, $schema->function);
} catch (Exception $ex) {
if (stripos($ex->getMessage(), 'no function definitions in a known language for format mysql5') === false) {
throw $ex;
}
$xml = <<<XML
<schema name="test" owner="ROLE_OWNER">
<function name="test_fn" returns="text" securityDefiner="true">
<functionParameter name="a" type="text"/>
<functionParameter name="b" type="int"/>
<functionParameter name="c" type="date"/>
<functionDefinition language="sql" sqlFormat="mysql5">
RETURN 'xyz';
</functionDefinition>
<functionDefinition language="sql" sqlFormat="mysql5">
RETURN 'xyz';
</functionDefinition>
</function>
</schema>
XML;
$schema = new SimpleXMLElement($xml);
try {
mysql5_function::get_creation_sql($schema, $schema->function);
} catch (Exception $ex) {
if (stripos($ex->getMessage(), 'duplicate function definition for mysql5/sql') === false) {
throw $ex;
}
return;
}
$this->fail('Expected exception for duplicate function definitions');
}
$this->fail('Expected exception for no function definitions');
}
