/**
* Outputs commands for dropping languages.
*
* @param $ofs output file segmenter
* @param $old_database original database
* @param $new_database new database
*/
private static function drop_languages($ofs)
{
if (dbsteward::$old_database != null) {
foreach (dbx::get_languages(dbsteward::$old_database) as $language) {
if (dbx::get_language(dbsteward::$new_database, $language['name']) == null) {
$ofs->write(pgsql8_language::get_drop_sql($language) . "\n");
}
}
}
}
public static function build($output_prefix, $db_doc)
{
if (strlen($output_prefix) == 0) {
throw new exception("pgsql8::build() sanity failure: output_prefix is blank");
}
// build full db creation script
$build_file = $output_prefix . '_build.sql';
dbsteward::info("Building complete file " . $build_file);
$build_file_fp = fopen($build_file, 'w');
if ($build_file_fp === FALSE) {
throw new exception("failed to open full file " . $build_file . ' for output');
}
$build_file_ofs = new output_file_segmenter($build_file, 1, $build_file_fp, $build_file);
if (count(dbsteward::$limit_to_tables) == 0) {
$build_file_ofs->write("-- full database definition file generated " . date('r') . "\n");
}
if (!dbsteward::$generate_slonik) {
$build_file_ofs->write("BEGIN;\n\n");
}
dbsteward::info("Calculating table foreign key dependency order..");
$table_dependency = xml_parser::table_dependency_order($db_doc);
// database-specific implementation code refers to dbsteward::$new_database when looking up roles/values/conflicts etc
dbsteward::$new_database = $db_doc;
dbx::set_default_schema($db_doc, 'public');
// language defintions
if (dbsteward::$create_languages) {
foreach ($db_doc->language as $language) {
$build_file_ofs->write(pgsql8_language::get_creation_sql($language));
}
}
// by default, postgresql will validate the contents of LANGUAGE SQL functions during creation
// because we are creating all functions before tables, this doesn't work when LANGUAGE SQL functions
// refer to tables yet to be created.
// scan language="sql" functions for <functionDefiniton>s that contain FROM (<TABLE>) statements
$set_check_function_bodies = TRUE;
// on in default postgresql configs
dbx::set_default_schema($db_doc, 'public');
foreach ($db_doc->schema as $schema) {
foreach ($schema->function as $function) {
if (pgsql8_function::has_definition($function)) {
$definition = pgsql8_function::get_definition($function);
if (strcasecmp($definition['language'], 'sql') == 0 && $definition['sqlFormat'] == 'pgsql8' && !is_null($referenced_table_name = static::function_definition_references_table($definition))) {
$table_schema_name = sql_parser::get_schema_name($referenced_table_name, $db_doc);
$node_schema = dbx::get_schema($db_doc, $table_schema_name);
$node_table = dbx::get_table($node_schema, sql_parser::get_object_name($referenced_table_name));
if ($node_table) {
// the referenced table is in the definition
// turn off check_function_bodies
$set_check_function_bodies = FALSE;
$set_check_function_bodies_info = "Detected LANGUAGE SQL function " . $schema['name'] . '.' . $function['name'] . " referring to table " . $table_schema_name . '.' . $node_table['name'] . " in the database definition";
dbsteward::info($set_check_function_bodies_info);
break 2;
}
}
}
}
}
if (!$set_check_function_bodies) {
$build_file_ofs->write("\n");
$build_file_ofs->write("SET check_function_bodies = FALSE; -- DBSteward " . $set_check_function_bodies_info . "\n\n");
}
if (dbsteward::$only_schema_sql || !dbsteward::$only_data_sql) {
dbsteward::info("Defining structure");
pgsql8::build_schema($db_doc, $build_file_ofs, $table_dependency);
}
if (!dbsteward::$only_schema_sql || dbsteward::$only_data_sql) {
dbsteward::info("Defining data inserts");
pgsql8::build_data($db_doc, $build_file_ofs, $table_dependency);
}
dbsteward::$new_database = NULL;
if (!dbsteward::$generate_slonik) {
$build_file_ofs->write("COMMIT;\n\n");
}
if (dbsteward::$generate_slonik) {
$replica_sets = static::get_slony_replica_sets($db_doc);
foreach ($replica_sets as $replica_set) {
// output preamble file standalone for tool chains that use the preamble to do additional slonik commands
pgsql8::build_slonik_preamble($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_preamble.slonik");
// output paths specificity standalone for tool chains that use the store path slonik statements separately
pgsql8::build_slonik_paths($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_paths.slonik");
// output create set file standalone for tool chains that use the create_set slonik separately
$create_set_filename = $output_prefix . '_slony_replica_set_' . $replica_set['id'] . '_create_set.slonik';
pgsql8::build_slonik_create_set($db_doc, $replica_set, $create_set_filename);
pgsql8::build_slonik_preamble($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_create_nodes.slonik");
pgsql8::build_slonik_store_nodes($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_create_nodes.slonik");
pgsql8::build_slonik_paths($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_create_nodes.slonik");
// build full subscribe steps that creates sets and subscribes nodes
$subscribe_filename = $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_subscribe.slonik";
pgsql8::build_slonik_preamble($db_doc, $replica_set, $subscribe_filename);
// create_set does one time slony configuration comparison.
// so append the content of _create_set into _subscribe built earlier
file_put_contents($subscribe_filename, file_get_contents($create_set_filename), FILE_APPEND);
foreach ($replica_set->slonyReplicaSetNode as $replica_set_node) {
pgsql8::build_slonik_subscribe_set_node($db_doc, $replica_set, $output_prefix . "_slony_replica_set_" . $replica_set['id'] . "_subscribe.slonik", $replica_set_node);
}
static::slony_ids_required_during_build($replica_set, $db_doc);
}
$count = 0;
foreach (array_keys(self::$sequence_slony_ids) as $slony_set_id) {
$count += count(self::$sequence_slony_ids[$slony_set_id]);
}
dbsteward::notice("[slony] ID summary: " . count(self::$table_slony_ids) . " tables " . $count . " sequences");
dbsteward::notice("[slony] table ID segments: " . static::slony_id_segment_summary(self::$table_slony_ids));
// keep this from bombing on there being no ids in $sequence_slony_ids
// if there were none returned (i.e. either there weren't any defined
// or they were all set to IGNORE_REQUIRED which hopefully doesn't happen
// because why would you do that for all of them)
if (!empty(self::$sequence_slony_ids)) {
foreach (array_keys(self::$sequence_slony_ids) as $slony_set_id) {
$console_line = "[slony] sequence ID segments";
if ($slony_set_id != 'NoSlonySet') {
$console_line .= " for slonySetId {$slony_set_id}";
}
$console_line .= ": ";
dbsteward::notice($console_line . static::slony_id_segment_summary(self::$sequence_slony_ids[$slony_set_id]));
}
}
}
return $db_doc;
}
