/** * Drop all missing or modified views * * @param $ofs output file segmenter * @param $old_schema original schema * @param $new_schema new schema */ public static function drop_views($ofs, $old_schema, $new_schema) { if ($old_schema != NULL) { foreach (dbx::get_views($old_schema) as $old_view) { $new_view = dbx::get_view($new_schema, $old_view['name']); if ($new_view == NULL || self::is_view_modified($old_view, $new_view)) { $ofs->write(mssql10_view::get_drop_sql($old_schema, $old_view) . "\n"); } } } }
/** * Parses CREATE VIEW command. * * @param database database * @param command CREATE VIEW command */ public static function parse($database, $command) { if (preg_match(self::PATTERN, trim($command), $matches) > 0) { $view_name = $matches[1]; $column_names = $matches[2]; $query = $matches[3]; if (strlen($view_name) == 0 || strlen($query) == 0) { throw new exception("Cannot parse command: " . $command); } $node_schema =& dbx::get_schema($database, sql_parser::get_schema_name($view_name, $database)); $node_view =& dbx::get_view($node_schema, sql_parser::get_object_name($view_name, $database), true); $node_view->addChild('viewQuery', $query); } else { throw new exception("Cannot parse command: " . $command); } }
/** * Iterates over all views in the given document, calling $callback for each one in dependency order * $callback takes ($node_schema, $node_view) */ public static function with_views_in_order($db_doc, $callback) { if ($db_doc != null) { $visited = array(); $dfs_from = function ($schema, $view) use($callback, &$dfs_from, $db_doc, &$visited) { $key = $schema['name'] . '.' . $view['name']; // echo "visiting $key\n"; if (array_key_exists($key, $visited)) { // echo " [visited]\n"; return; } // echo " remembering $key\n"; $visited[$key] = true; $deps = format_view::get_dependencies($schema, $view); foreach ($deps as $dep) { list($dep_schema_name, $dep_view_name) = $dep; // echo " depends on $dep_schema_name.$dep_view_name\n"; $dep_schema = dbx::get_schema($db_doc, $dep_schema_name); $dep_view = dbx::get_view($dep_schema, $dep_view_name); $dfs_from($dep_schema, $dep_view); } call_user_func($callback, $schema, $view); }; foreach (dbx::get_schemas($db_doc) as $root_schema) { $root_schema_name = (string) $root_schema['name']; foreach (dbx::get_views($root_schema) as $root_view) { $root_view_name = (string) $root_view['name']; $root_key = $root_schema_name . '.' . $root_view_name; // echo "starting at $root_key\n"; if (array_key_exists($root_key, $visited)) { // echo " [visited]\n"; continue; } $dfs_from($root_schema, $root_view); } } } }
protected static function update_permissions($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"); } } } } }