/**
* 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, $new_function) . "\n");
}
}
}
}
}
private function build($xml, $expected)
{
$schema = simplexml_load_string($xml);
$type = $schema->type;
$sql = pgsql8_type::get_creation_sql($schema, $type);
$this->assertEquals($expected, $sql);
}
/**
* change all tables columns thare are $node_type to a placeholder type
*
* @param $columns reference columns returned by reference
* @param $node_schema
* @param $node_type
* @return string DDL
*/
public static function alter_column_type_placeholder(&$columns, $node_schema, $node_type)
{
$ddl = '';
for ($i = 0; $i < count(pgsql8_diff::$new_table_dependency); $i++) {
// find the necessary pointers
$table_item = pgsql8_diff::$new_table_dependency[$i];
if ($table_item['table']['name'] === dbsteward::TABLE_DEPENDENCY_IGNORABLE_NAME) {
// don't do anything with this table, it is a magic internal DBSteward value
continue;
}
$new_schema = $table_item['schema'];
$new_table = $table_item['table'];
foreach (dbx::get_table_columns($new_table) as $new_column) {
// is the column the passed type?
$unquoted_type_name = $node_schema['name'] . '.' . $node_type['name'];
if (strcasecmp($new_column['type'], $unquoted_type_name) == 0) {
$ddl .= "ALTER TABLE " . pgsql8::get_quoted_schema_name($new_schema['name']) . '.' . pgsql8::get_quoted_table_name($new_table['name']) . " ALTER COLUMN " . pgsql8::get_quoted_column_name($new_column['name']) . " TYPE " . pgsql8_type::alter_column_type_placeholder_type($node_type) . ";\n";
// add column to the beginning of the list so it will be done before earlier changes (foreign key ordering)
array_unshift($columns, array('alter_column_schema' => $new_schema, 'alter_column_table' => $new_table, 'alter_column_column' => $new_column));
}
}
}
return $ddl;
}
/**
* Outputs commands for dropping types.
*
* @param $ofs output file pointer
* @param $old_schema original schema
* @param $new_schema new schema
*/
private static function drop_types($ofs, $old_schema, $new_schema)
{
if ($old_schema != NULL) {
foreach (dbx::get_types($old_schema) as $type) {
if (!pgsql8_schema::contains_type($new_schema, $type['name'])) {
pgsql8::set_context_replica_set_id($type);
$ofs->write(pgsql8_type::get_drop_sql($new_schema, $type) . "\n");
}
}
}
}
public static function build_schema($db_doc, $ofs, $table_depends)
{
// schema creation
foreach ($db_doc->schema as $schema) {
$ofs->write(pgsql8_schema::get_creation_sql($schema));
// schema grants
if (isset($schema->grant)) {
foreach ($schema->grant as $grant) {
$ofs->write(pgsql8_permission::get_sql($db_doc, $schema, $schema, $grant) . "\n");
}
}
}
// types: enumerated list, etc
foreach ($db_doc->schema as $schema) {
foreach ($schema->type as $type) {
$ofs->write(pgsql8_type::get_creation_sql($schema, $type) . "\n");
}
}
// table structure creation
foreach ($db_doc->schema as $schema) {
// create defined tables
pgsql8_table::$include_column_default_nextval_in_create_sql = FALSE;
foreach ($schema->table as $table) {
// table definition
$ofs->write(pgsql8_table::get_creation_sql($schema, $table) . "\n");
// table indexes
pgsql8_diff_indexes::diff_indexes_table($ofs, NULL, NULL, $schema, $table);
// table grants
if (isset($table->grant)) {
foreach ($table->grant as $grant) {
$ofs->write(pgsql8_permission::get_sql($db_doc, $schema, $table, $grant) . "\n");
}
}
$ofs->write("\n");
}
pgsql8_table::$include_column_default_nextval_in_create_sql = TRUE;
// sequences contained in the schema
if (isset($schema->sequence)) {
foreach ($schema->sequence as $sequence) {
$ofs->write(pgsql8_sequence::get_creation_sql($schema, $sequence));
// sequence permission grants
if (isset($sequence->grant)) {
foreach ($sequence->grant as $grant) {
$ofs->write(pgsql8_permission::get_sql($db_doc, $schema, $sequence, $grant) . "\n");
}
}
}
}
// add table nextvals that were omitted
foreach ($schema->table as $table) {
if (pgsql8_table::has_default_nextval($table)) {
$ofs->write(pgsql8_table::get_default_nextval_sql($schema, $table) . "\n");
}
}
}
$ofs->write("\n");
// function definitions
foreach ($db_doc->schema as $schema) {
foreach ($schema->function as $function) {
if (pgsql8_function::has_definition($function)) {
$ofs->write(pgsql8_function::get_creation_sql($schema, $function));
// when pg:build_schema() is doing its thing for straight builds, include function permissions
// they are not included in pg_function::get_creation_sql()
foreach (dbx::get_permissions($function) as $function_permission) {
$ofs->write(pgsql8_permission::get_sql($db_doc, $schema, $function, $function_permission) . "\n");
}
}
}
}
$ofs->write("\n");
// maybe move this but here we're defining column defaults fo realz
foreach ($db_doc->schema as $schema) {
foreach ($schema->table as $table) {
$ofs->write(pgsql8_table::define_table_column_defaults($schema, $table));
}
}
// define table primary keys before foreign keys so unique requirements are always met for FOREIGN KEY constraints
foreach ($db_doc->schema as $schema) {
foreach ($schema->table as $table) {
pgsql8_diff_tables::diff_constraints_table($ofs, NULL, NULL, $schema, $table, 'primaryKey', FALSE);
}
}
$ofs->write("\n");
// foreign key references
// use the dependency order to specify foreign keys in an order that will satisfy nested foreign keys and etc
for ($i = 0; $i < count($table_depends); $i++) {
$schema = $table_depends[$i]['schema'];
$table = $table_depends[$i]['table'];
if ($table['name'] === dbsteward::TABLE_DEPENDENCY_IGNORABLE_NAME) {
// don't do anything with this table, it is a magic internal DBSteward value
continue;
}
pgsql8_diff_tables::diff_constraints_table($ofs, NULL, NULL, $schema, $table, 'constraint', FALSE);
}
$ofs->write("\n");
// trigger definitions
foreach ($db_doc->schema as $schema) {
foreach ($schema->trigger as $trigger) {
// only do triggers set to the current sql format
if (strcasecmp($trigger['sqlFormat'], dbsteward::get_sql_format()) == 0) {
$ofs->write(pgsql8_trigger::get_creation_sql($schema, $trigger));
}
}
}
$ofs->write("\n");
pgsql8_diff_views::create_views_ordered($ofs, null, $db_doc);
// view permission grants
foreach ($db_doc->schema as $schema) {
foreach ($schema->view as $view) {
if (isset($view->grant)) {
foreach ($view->grant as $grant) {
$ofs->write(pgsql8_permission::get_sql($db_doc, $schema, $view, $grant) . "\n");
}
}
}
}
$ofs->write("\n");
// use pgdiff to add any configurationParameters that are defined
pgsql8_diff::update_database_config_parameters($ofs, null, $db_doc);
}