/** * 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"); } } } } }
/** * Drop removed types * Add new types * Apply type definition differences, updating the type's tables along the way * * @param $ofs output segementer * @param $old_schema original schema * @param $new_schema new schema */ public static function apply_changes($ofs, $old_schema, $new_schema) { // drop any types that are no longer defined self::drop_types($ofs, $old_schema, $new_schema); // create any types that are new in the new definition self::create_types($ofs, $old_schema, $new_schema); // there is no alter for types // find types that still exist that are different // placehold type data in table columns, and recreate the type foreach (dbx::get_types($new_schema) as $new_type) { // does type exist in old definition ? if ($old_schema == NULL || !pgsql8_schema::contains_type($old_schema, $new_type['name'])) { continue; } $old_type = dbx::get_type($old_schema, $new_type['name']); // is there a difference between the old and new type definitions? if (pgsql8_type::equals($old_schema, $old_type, $new_schema, $new_type)) { continue; } pgsql8::set_context_replica_set_id($new_type); $columns = array(); $is_domain = strcasecmp($new_type['type'], 'domain') === 0; $n = $is_domain ? 3 : 4; $word = $is_domain ? 'domain' : 'type'; $i = 1; $old_dependent_functions = dbx::get_functions_with_dependent_type($old_schema, (string) $old_type['name']); if (count($old_dependent_functions) > 0) { $n += 2; $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): dependent functions return/parameter type alteration\n"); $i++; foreach ($old_dependent_functions as $old_dependent_function) { $ofs->write(pgsql8_function::get_drop_sql($old_schema, $old_dependent_function) . "\n"); } $ofs->write("\n"); } $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): dependent tables column type alteration\n"); $i++; $ofs->write(pgsql8_type::alter_column_type_placeholder($columns, $old_schema, $old_type) . "\n"); if ($is_domain) { $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): alter domain\n"); $i++; self::apply_domain_changes($ofs, $old_schema, $old_type, $new_schema, $new_type); } else { $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): drop old type\n"); $i++; $ofs->write(pgsql8_type::get_drop_sql($old_schema, $old_type) . "\n\n"); $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): recreate type with new definition\n"); $i++; $ofs->write(pgsql8_type::get_creation_sql($new_schema, $new_type) . "\n\n"); } // functions are only recreated if they changed elsewise, so need to create them here $new_dependent_functions = dbx::get_functions_with_dependent_type($new_schema, (string) $new_type['name']); if (count($new_dependent_functions) > 0) { $ofs->write("-- {$word} {$new_type['name']} definition migration ({$i}/{$n}): dependent functions return/parameter type with new definition\n"); $i++; foreach ($new_dependent_functions as $new_dependent_function) { $ofs->write(pgsql8_function::get_creation_sql($new_schema, $new_dependent_function) . "\n"); } $ofs->write("\n\n"); } $ofs->write("-- {$word} {$new_type['name']} definition migration ({$n}/{$n}): dependent tables type restoration\n"); $ofs->write(pgsql8_type::alter_column_type_restore($columns, $new_schema, $new_type) . "\n"); } }
public static function build_schema($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); }