diff options
Diffstat (limited to 'synapse/storage')
| -rw-r--r-- | synapse/storage/__init__.py | 76 | ||||
| -rw-r--r-- | synapse/storage/_base.py | 159 |
2 files changed, 235 insertions, 0 deletions
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index b9968debe5..d604e7668f 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -297,6 +297,82 @@ class DataStore(RoomMemberStore, RoomStore, desc="get_user_ip_and_agents", ) + def get_users(self): + """Function to reterive a list of users in users table. + + Args: + Returns: + defer.Deferred: resolves to list[dict[str, Any]] + """ + return self._simple_select_list( + table="users", + keyvalues={}, + retcols=[ + "name", + "password_hash", + "is_guest", + "admin" + ], + desc="get_users", + ) + + def get_users_paginate(self, order, start, limit): + """Function to reterive a paginated list of users from + users list. This will return a json object, which contains + list of users and the total number of users in users table. + + Args: + order (str): column name to order the select by this column + start (int): start number to begin the query from + limit (int): number of rows to reterive + Returns: + defer.Deferred: resolves to json object {list[dict[str, Any]], count} + """ + is_guest = 0 + i_start = (int)(start) + i_limit = (int)(limit) + return self.get_user_list_paginate( + table="users", + keyvalues={ + "is_guest": is_guest + }, + pagevalues=[ + order, + i_limit, + i_start + ], + retcols=[ + "name", + "password_hash", + "is_guest", + "admin" + ], + desc="get_users_paginate", + ) + + def search_users(self, term): + """Function to search users list for one or more users with + the matched term. + + Args: + term (str): search term + col (str): column to query term should be matched to + Returns: + defer.Deferred: resolves to list[dict[str, Any]] + """ + return self._simple_search_list( + table="users", + term=term, + col="name", + retcols=[ + "name", + "password_hash", + "is_guest", + "admin" + ], + desc="search_users", + ) + def are_all_users_on_domain(txn, database_engine, domain): sql = database_engine.convert_param_style( diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 05374682fd..b0dc391190 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -934,6 +934,165 @@ class SQLBaseStore(object): else: return 0 + def _simple_select_list_paginate(self, table, keyvalues, pagevalues, retcols, + desc="_simple_select_list_paginate"): + """Executes a SELECT query on the named table with start and limit, + of row numbers, which may return zero or number of rows from start to limit, + returning the result as a list of dicts. + + Args: + table (str): the table name + keyvalues (dict[str, Any] | None): + column names and values to select the rows with, or None to not + apply a WHERE clause. + retcols (iterable[str]): the names of the columns to return + order (str): order the select by this column + start (int): start number to begin the query from + limit (int): number of rows to reterive + Returns: + defer.Deferred: resolves to list[dict[str, Any]] + """ + return self.runInteraction( + desc, + self._simple_select_list_paginate_txn, + table, keyvalues, pagevalues, retcols + ) + + @classmethod + def _simple_select_list_paginate_txn(cls, txn, table, keyvalues, pagevalues, retcols): + """Executes a SELECT query on the named table with start and limit, + of row numbers, which may return zero or number of rows from start to limit, + returning the result as a list of dicts. + + Args: + txn : Transaction object + table (str): the table name + keyvalues (dict[str, T] | None): + column names and values to select the rows with, or None to not + apply a WHERE clause. + pagevalues ([]): + order (str): order the select by this column + start (int): start number to begin the query from + limit (int): number of rows to reterive + retcols (iterable[str]): the names of the columns to return + Returns: + defer.Deferred: resolves to list[dict[str, Any]] + + """ + if keyvalues: + sql = "SELECT %s FROM %s WHERE %s ORDER BY %s" % ( + ", ".join(retcols), + table, + " AND ".join("%s = ?" % (k,) for k in keyvalues), + " ? ASC LIMIT ? OFFSET ?" + ) + txn.execute(sql, keyvalues.values() + pagevalues) + else: + sql = "SELECT %s FROM %s ORDER BY %s" % ( + ", ".join(retcols), + table, + " ? ASC LIMIT ? OFFSET ?" + ) + txn.execute(sql, pagevalues) + + return cls.cursor_to_dict(txn) + + @defer.inlineCallbacks + def get_user_list_paginate(self, table, keyvalues, pagevalues, retcols, + desc="get_user_list_paginate"): + """Get a list of users from start row to a limit number of rows. This will + return a json object with users and total number of users in users list. + + Args: + table (str): the table name + keyvalues (dict[str, Any] | None): + column names and values to select the rows with, or None to not + apply a WHERE clause. + pagevalues ([]): + order (str): order the select by this column + start (int): start number to begin the query from + limit (int): number of rows to reterive + retcols (iterable[str]): the names of the columns to return + Returns: + defer.Deferred: resolves to json object {list[dict[str, Any]], count} + """ + users = yield self.runInteraction( + desc, + self._simple_select_list_paginate_txn, + table, keyvalues, pagevalues, retcols + ) + count = yield self.runInteraction( + desc, + self.get_user_count_txn + ) + retval = { + "users": users, + "total": count + } + defer.returnValue(retval) + + def get_user_count_txn(self, txn): + """Get a total number of registerd users in the users list. + + Args: + txn : Transaction object + Returns: + defer.Deferred: resolves to int + """ + sql_count = "SELECT COUNT(*) FROM users WHERE is_guest = 0;" + txn.execute(sql_count) + count = txn.fetchone()[0] + defer.returnValue(count) + + def _simple_search_list(self, table, term, col, retcols, + desc="_simple_search_list"): + """Executes a SELECT query on the named table, which may return zero or + more rows, returning the result as a list of dicts. + + Args: + table (str): the table name + term (str | None): + term for searching the table matched to a column. + col (str): column to query term should be matched to + retcols (iterable[str]): the names of the columns to return + Returns: + defer.Deferred: resolves to list[dict[str, Any]] or None + """ + + return self.runInteraction( + desc, + self._simple_search_list_txn, + table, term, col, retcols + ) + + @classmethod + def _simple_search_list_txn(cls, txn, table, term, col, retcols): + """Executes a SELECT query on the named table, which may return zero or + more rows, returning the result as a list of dicts. + + Args: + txn : Transaction object + table (str): the table name + term (str | None): + term for searching the table matched to a column. + col (str): column to query term should be matched to + retcols (iterable[str]): the names of the columns to return + Returns: + defer.Deferred: resolves to list[dict[str, Any]] or None + """ + if term: + sql = "SELECT %s FROM %s WHERE %s LIKE ?" % ( + ", ".join(retcols), + table, + col + ) + termvalues = ["%%" + term + "%%"] + txn.execute(sql, termvalues) + else: + return 0 + + return cls.cursor_to_dict(txn) + class _RollbackButIsFineException(Exception): """ This exception is used to rollback a transaction without implying |