/**
* 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 $old_function) {
if (!pgsql8_schema::contains_function($new_schema, pgsql8_function::get_declaration($new_schema, $old_function, FALSE))) {
$ofs3->write(pgsql8_function::get_drop_sql($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, $new_function['name'], pgsql8_function::get_declaration($new_schema, $new_function));
}
if ($old_function == null || !pgsql8_function::equals($new_schema, $new_function, $old_function, pgsql8_diff::$ignore_function_whitespace)) {
$ofs1->write(pgsql8_function::get_creation_sql($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");
$ofs1->write(pgsql8_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (pgsql8_schema::contains_type($new_schema, $new_function['returns']) && pgsql8_schema::contains_type($old_schema, $new_function['returns']) && !pgsql8_type::equals(dbx::get_type($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");
$ofs1->write(pgsql8_function::get_creation_sql($new_schema, $new_function) . "\n");
}
}
}
}
}
/**
* Returns true if schema contains function with given $declaration, otherwise false.
*
* @param $declaration declaration of the function
*
* @return true if schema contains function with given $declaration, otherwise false
*/
public static function contains_function($node_schema, $declaration)
{
$found = false;
foreach (dbx::get_functions($node_schema) as $node_function) {
if (strcasecmp(format_function::get_declaration($node_schema, $node_function, FALSE), $declaration) == 0) {
$found = true;
break;
}
}
return $found;
}
/**
* Returns true if schema contains function with given $declaration, otherwise false.
*
* @param $declaration declaration of the function
*
* @return true if schema contains function with given $declaration, otherwise false
*/
public function contains_function($node_schema, $declaration)
{
$found = FALSE;
foreach (dbx::get_functions($node_schema) as $node_function) {
if (strcasecmp(mssql10_function::get_declaration($node_schema, $node_function), $declaration) == 0) {
$found = TRUE;
break;
}
}
return $found;
}
/**
* 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 $old_function) {
if (!mssql10_schema::contains_function($new_schema, mssql10_function::get_declaration($new_schema, $old_function))) {
$ofs3->write(mssql10_function::get_drop_sql($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, $new_function['name'], mssql10_function::get_declaration($new_schema, $new_function));
}
if ($old_function == NULL) {
$ofs1->write(mssql10_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (!mssql10_function::equals($new_schema, $new_function, $old_function, mssql10_diff::$ignore_function_whitespace)) {
// functions are not equal, old_function is not null, it previously existed
// for MSSQL, there is no CREATE OR REPLACE FUNCTION, so drop the function explicitly
$ofs1->write(mssql10_function::get_drop_sql($old_schema, $old_function) . "\n");
$ofs1->write(mssql10_function::get_creation_sql($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");
$ofs1->write(mssql10_function::get_creation_sql($new_schema, $new_function) . "\n");
} else {
if (mssql10_schema::contains_type($new_schema, $new_function['returns']) && mssql10_schema::contains_type($old_schema, $new_function['returns']) && !mssql10_type::equals(dbx::get_type($old_schema, $new_function['returns']), dbx::get_type($new_schema, $new_function['returns']))) {
$ofs1->write("-- dbstward insisting on function re-creation " . $new_function['name'] . " for type " . $new_function['returns'] . " definition change\n");
$ofs1->write(mssql10_function::get_drop_sql($old_schema, $old_function) . "\n");
$ofs1->write(mssql10_function::get_creation_sql($new_schema, $new_function) . "\n");
}
}
}
}
}
}
protected static function update_permissions($ofs1, $ofs3)
{
foreach (dbx::get_schemas(dbsteward::$new_database) as $new_schema) {
$old_schema = dbx::get_schema(dbsteward::$old_database, $new_schema['name']);
foreach (dbx::get_permissions($new_schema) as $new_permission) {
if ($old_schema == NULL || !mssql10_permission::has_permission($old_schema, $new_permission)) {
$ofs1->write(mssql10_permission::get_sql(dbsteward::$new_database, $new_schema, $new_schema, $new_permission) . "\n");
}
}
foreach (dbx::get_tables($new_schema) as $new_table) {
$old_table = NULL;
if ($old_schema != NULL) {
$old_table = dbx::get_table($old_schema, $new_table['name']);
}
if (!dbsteward::$ignore_oldnames && mssql10_diff_tables::is_renamed_table($new_schema, $new_table)) {
// oldTableName renamed table ? skip permission diffing on it, it is the same
continue;
}
foreach (dbx::get_permissions($new_table) as $new_permission) {
if ($old_table == NULL || !mssql10_permission::has_permission($old_table, $new_permission)) {
$ofs1->write(mssql10_permission::get_sql(dbsteward::$new_database, $new_schema, $new_table, $new_permission) . "\n");
}
}
}
foreach (dbx::get_sequences($new_schema) as $new_sequence) {
$old_sequence = NULL;
if ($old_schema != NULL) {
$old_sequence = dbx::get_sequence($old_schema, $new_sequence['name']);
}
foreach (dbx::get_permissions($new_sequence) as $new_permission) {
if ($old_sequence == NULL || !mssql10_permission::has_permission($old_sequence, $new_permission)) {
$ofs1->write(mssql10_permission::get_sql(dbsteward::$new_database, $new_schema, $new_sequence, $new_permission) . "\n");
}
}
}
foreach (dbx::get_functions($new_schema) as $new_function) {
$old_function = NULL;
if ($old_schema != NULL) {
$old_function = dbx::get_function($old_schema, $new_function['name'], mssql10_function::get_declaration($new_schema, $new_function));
}
foreach (dbx::get_permissions($new_function) as $new_permission) {
if ($old_function == NULL || !mssql10_permission::has_permission($old_function, $new_permission)) {
$ofs1->write(mssql10_permission::get_sql(dbsteward::$new_database, $new_schema, $new_function, $new_permission) . "\n");
}
}
}
foreach (dbx::get_views($new_schema) as $new_view) {
$old_view = NULL;
if ($old_schema != NULL) {
$old_view = dbx::get_view($old_schema, $new_view['name']);
}
foreach (dbx::get_permissions($new_view) as $new_permission) {
// if always_recreate_views flag is on, always grant all view permissions, as the view was recreated
if (dbsteward::$always_recreate_views || $old_view == NULL || !mssql10_permission::has_permission($old_view, $new_permission) || mssql10_diff_views::is_view_modified($old_view, $new_view)) {
// view permissions are in schema stage 3 file because views are (re)created in that stage for SELECT * expansion
$ofs3->write(mssql10_permission::get_sql(dbsteward::$new_database, $new_schema, $new_view, $new_permission) . "\n");
}
}
}
}
}
