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2025-09-29 00:52:08 +02:00

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Python
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# MySQL Connector/Python - MySQL driver written in Python.
# Copyright (c) 2009,2010, Oracle and/or its affiliates. All rights reserved.
# Use is subject to license terms. (See COPYING)
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation.
#
# There are special exceptions to the terms and conditions of the GNU
# General Public License as it is applied to this software. View the
# full text of the exception in file EXCEPTIONS-CLIENT in the directory
# of this software distribution or see the FOSS License Exception at
# www.mysql.com.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Various MySQL constants and character sets
"""
from errors import ProgrammingError
def flag_is_set(flag, flags):
"""Checks if the flag is set
Returns boolean"""
if (flags & flag) > 0:
return True
return False
class _constants(object):
prefix = ''
desc = {}
def __new__(cls):
raise TypeError, "Can not instanciate from %s" % cls.__name__
@classmethod
def get_desc(cls,name):
try:
return cls.desc[name][1]
except:
return None
@classmethod
def get_info(cls,n):
try:
res = {}
for v in cls.desc.items():
res[v[1][0]] = v[0]
return res[n]
except:
return None
@classmethod
def get_full_info(cls):
res = ()
try:
res = ["%s : %s" % (k,v[1]) for k,v in cls.desc.items()]
except StandardError, e:
res = ('No information found in constant class.%s' % e)
return res
class _constantflags(_constants):
@classmethod
def get_bit_info(cls, v):
"""Get the name of all bits set
Returns a list of strings."""
res = []
for name,d in cls.desc.items():
if v & d[0]:
res.append(name)
return res
class FieldType(_constants):
prefix = 'FIELD_TYPE_'
DECIMAL = 0x00
TINY = 0x01
SHORT = 0x02
LONG = 0x03
FLOAT = 0x04
DOUBLE = 0x05
NULL = 0x06
TIMESTAMP = 0x07
LONGLONG = 0x08
INT24 = 0x09
DATE = 0x0a
TIME = 0x0b
DATETIME = 0x0c
YEAR = 0x0d
NEWDATE = 0x0e
VARCHAR = 0x0f
BIT = 0x10
NEWDECIMAL = 0xf6
ENUM = 0xf7
SET = 0xf8
TINY_BLOB = 0xf9
MEDIUM_BLOB = 0xfa
LONG_BLOB = 0xfb
BLOB = 0xfc
VAR_STRING = 0xfd
STRING = 0xfe
GEOMETRY = 0xff
desc = {
'DECIMAL': (0x00, 'DECIMAL'),
'TINY': (0x01, 'TINY'),
'SHORT': (0x02, 'SHORT'),
'LONG': (0x03, 'LONG'),
'FLOAT': (0x04, 'FLOAT'),
'DOUBLE': (0x05, 'DOUBLE'),
'NULL': (0x06, 'NULL'),
'TIMESTAMP': (0x07, 'TIMESTAMP'),
'LONGLONG': (0x08, 'LONGLONG'),
'INT24': (0x09, 'INT24'),
'DATE': (0x0a, 'DATE'),
'TIME': (0x0b, 'TIME'),
'DATETIME': (0x0c, 'DATETIME'),
'YEAR': (0x0d, 'YEAR'),
'NEWDATE': (0x0e, 'NEWDATE'),
'VARCHAR': (0x0f, 'VARCHAR'),
'BIT': (0x10, 'BIT'),
'NEWDECIMAL': (0xf6, 'NEWDECIMAL'),
'ENUM': (0xf7, 'ENUM'),
'SET': (0xf8, 'SET'),
'TINY_BLOB': (0xf9, 'TINY_BLOB'),
'MEDIUM_BLOB': (0xfa, 'MEDIUM_BLOB'),
'LONG_BLOB': (0xfb, 'LONG_BLOB'),
'BLOB': (0xfc, 'BLOB'),
'VAR_STRING': (0xfd, 'VAR_STRING'),
'STRING': (0xfe, 'STRING'),
'GEOMETRY': (0xff, 'GEOMETRY'),
}
@classmethod
def get_string_types(cls):
return [
cls.VARCHAR,
cls.ENUM,
cls.VAR_STRING, cls.STRING,
]
@classmethod
def get_binary_types(cls):
return [
cls.TINY_BLOB, cls.MEDIUM_BLOB,
cls.LONG_BLOB, cls.BLOB,
]
@classmethod
def get_number_types(cls):
return [
cls.DECIMAL, cls.NEWDECIMAL,
cls.TINY, cls.SHORT, cls.LONG,
cls.FLOAT, cls.DOUBLE,
cls.LONGLONG, cls.INT24,
cls.BIT,
cls.YEAR,
]
@classmethod
def get_timestamp_types(cls):
return [
cls.DATETIME, cls.TIMESTAMP,
]
class FieldFlag(_constantflags):
"""
Field flags as found in MySQL sources mysql-src/include/mysql_com.h
"""
_prefix = ''
NOT_NULL = 1 << 0
PRI_KEY = 1 << 1
UNIQUE_KEY = 1 << 2
MULTIPLE_KEY = 1 << 3
BLOB = 1 << 4
UNSIGNED = 1 << 5
ZEROFILL = 1 << 6
BINARY = 1 << 7
ENUM = 1 << 8
AUTO_INCREMENT = 1 << 9
TIMESTAMP = 1 << 10
SET = 1 << 11
NO_DEFAULT_VALUE = 1 << 12
ON_UPDATE_NOW = 1 << 13
NUM = 1 << 14
PART_KEY = 1 << 15
GROUP = 1 << 14 # SAME AS NUM !!!!!!!????
UNIQUE = 1 << 16
BINCMP = 1 << 17
GET_FIXED_FIELDS = 1 << 18
FIELD_IN_PART_FUNC = 1 << 19
FIELD_IN_ADD_INDEX = 1 << 20
FIELD_IS_RENAMED = 1 << 21
desc = {
'NOT_NULL': (1 << 0, "Field can't be NULL"),
'PRI_KEY': (1 << 1, "Field is part of a primary key"),
'UNIQUE_KEY': (1 << 2, "Field is part of a unique key"),
'MULTIPLE_KEY': (1 << 3, "Field is part of a key"),
'BLOB': (1 << 4, "Field is a blob"),
'UNSIGNED': (1 << 5, "Field is unsigned"),
'ZEROFILL': (1 << 6, "Field is zerofill"),
'BINARY': (1 << 7, "Field is binary "),
'ENUM': (1 << 8, "field is an enum"),
'AUTO_INCREMENT': (1 << 9, "field is a autoincrement field"),
'TIMESTAMP': (1 << 10, "Field is a timestamp"),
'SET': (1 << 11, "field is a set"),
'NO_DEFAULT_VALUE': (1 << 12, "Field doesn't have default value"),
'ON_UPDATE_NOW': (1 << 13, "Field is set to NOW on UPDATE"),
'NUM': (1 << 14, "Field is num (for clients)"),
'PART_KEY': (1 << 15, "Intern; Part of some key"),
'GROUP': (1 << 14, "Intern: Group field"), # Same as NUM
'UNIQUE': (1 << 16, "Intern: Used by sql_yacc"),
'BINCMP': (1 << 17, "Intern: Used by sql_yacc"),
'GET_FIXED_FIELDS': (1 << 18, "Used to get fields in item tree"),
'FIELD_IN_PART_FUNC': (1 << 19, "Field part of partition func"),
'FIELD_IN_ADD_INDEX': (1 << 20, "Intern: Field used in ADD INDEX"),
'FIELD_IS_RENAMED': (1 << 21, "Intern: Field is being renamed"),
}
class ServerCmd(_constants):
_prefix = 'COM_'
SLEEP = 0
QUIT = 1
INIT_DB = 2
QUERY = 3
FIELD_LIST = 4
CREATE_DB = 5
DROP_DB = 6
REFRESH = 7
SHUTDOWN = 8
STATISTICS = 9
PROCESS_INFO = 10
CONNECT = 11
PROCESS_KILL = 12
DEBUG = 13
PING = 14
TIME = 15
DELAYED_INSERT = 16
CHANGE_USER = 17
BINLOG_DUMP = 18
TABLE_DUMP = 19
CONNECT_OUT = 20
REGISTER_SLAVE = 21
STMT_PREPARE = 22
STMT_EXECUTE = 23
STMT_SEND_LONG_DATA = 24
STMT_CLOSE = 25
STMT_RESET = 26
SET_OPTION = 27
STMT_FETCH = 28
DAEMON = 29
desc = {
'SLEEP': (0,'SLEEP'),
'QUIT': (1,'QUIT'),
'INIT_DB': (2,'INIT_DB'),
'QUERY': (3,'QUERY'),
'FIELD_LIST': (4,'FIELD_LIST'),
'CREATE_DB': (5,'CREATE_DB'),
'DROP_DB': (6,'DROP_DB'),
'REFRESH': (7,'REFRESH'),
'SHUTDOWN': (8,'SHUTDOWN'),
'STATISTICS': (9,'STATISTICS'),
'PROCESS_INFO': (10,'PROCESS_INFO'),
'CONNECT': (11,'CONNECT'),
'PROCESS_KILL': (12,'PROCESS_KILL'),
'DEBUG': (13,'DEBUG'),
'PING': (14,'PING'),
'TIME': (15,'TIME'),
'DELAYED_INSERT': (16,'DELAYED_INSERT'),
'CHANGE_USER': (17,'CHANGE_USER'),
'BINLOG_DUMP': (18,'BINLOG_DUMP'),
'TABLE_DUMP': (19,'TABLE_DUMP'),
'CONNECT_OUT': (20,'CONNECT_OUT'),
'REGISTER_SLAVE': (21,'REGISTER_SLAVE'),
'STMT_PREPARE': (22,'STMT_PREPARE'),
'STMT_EXECUTE': (23,'STMT_EXECUTE'),
'STMT_SEND_LONG_DATA': (24,'STMT_SEND_LONG_DATA'),
'STMT_CLOSE': (25,'STMT_CLOSE'),
'STMT_RESET': (26,'STMT_RESET'),
'SET_OPTION': (27,'SET_OPTION'),
'STMT_FETCH': (28,'STMT_FETCH'),
'DAEMON': (29,'DAEMON'),
}
class ClientFlag(_constantflags):
"""
Client Options as found in the MySQL sources mysql-src/include/mysql_com.h
"""
LONG_PASSWD = 1 << 0
FOUND_ROWS = 1 << 1
LONG_FLAG = 1 << 2
CONNECT_WITH_DB = 1 << 3
NO_SCHEMA = 1 << 4
COMPRESS = 1 << 5
ODBC = 1 << 6
LOCAL_FILES = 1 << 7
IGNORE_SPACE = 1 << 8
PROTOCOL_41 = 1 << 9
INTERACTIVE = 1 << 10
SSL = 1 << 11
IGNORE_SIGPIPE = 1 << 12
TRANSACTIONS = 1 << 13
RESERVED = 1 << 14
SECURE_CONNECTION = 1 << 15
MULTI_STATEMENTS = 1 << 16
MULTI_RESULTS = 1 << 17
SSL_VERIFY_SERVER_CERT = 1 << 30
REMEMBER_OPTIONS = 1 << 31
desc = {
'LONG_PASSWD': (1 << 0, 'New more secure passwords'),
'FOUND_ROWS': (1 << 1, 'Found instead of affected rows'),
'LONG_FLAG': (1 << 2, 'Get all column flags'),
'CONNECT_WITH_DB': (1 << 3, 'One can specify db on connect'),
'NO_SCHEMA': (1 << 4, "Don't allow database.table.column"),
'COMPRESS': (1 << 5, 'Can use compression protocol'),
'ODBC': (1 << 6, 'ODBC client'),
'LOCAL_FILES': (1 << 7, 'Can use LOAD DATA LOCAL'),
'IGNORE_SPACE': (1 << 8, "Ignore spaces before ''"),
'PROTOCOL_41': (1 << 9, 'New 4.1 protocol'),
'INTERACTIVE': (1 << 10, 'This is an interactive client'),
'SSL': (1 << 11, 'Switch to SSL after handshake'),
'IGNORE_SIGPIPE': (1 << 12, 'IGNORE sigpipes'),
'TRANSACTIONS': (1 << 13, 'Client knows about transactions'),
'RESERVED': (1 << 14, 'Old flag for 4.1 protocol'),
'SECURE_CONNECTION': (1 << 15, 'New 4.1 authentication'),
'MULTI_STATEMENTS': (1 << 16, 'Enable/disable multi-stmt support'),
'MULTI_RESULTS': (1 << 17, 'Enable/disable multi-results'),
'SSL_VERIFY_SERVER_CERT': (1 << 30, ''),
'REMEMBER_OPTIONS': (1 << 31, ''),
}
default = [
LONG_PASSWD,
LONG_FLAG,
CONNECT_WITH_DB,
PROTOCOL_41,
TRANSACTIONS,
SECURE_CONNECTION,
MULTI_STATEMENTS,
MULTI_RESULTS,
]
@classmethod
def get_default(cls):
flags = 0
for f in cls.default:
flags |= f
return flags
class ServerFlag(_constantflags):
"""
Server flags as found in the MySQL sources mysql-src/include/mysql_com.h
"""
_prefix = 'SERVER_'
STATUS_IN_TRANS = 1 << 0
STATUS_AUTOCOMMIT = 1 << 1
MORE_RESULTS_EXISTS = 1 << 3
QUERY_NO_GOOD_INDEX_USED = 1 << 4
QUERY_NO_INDEX_USED = 1 << 5
STATUS_CURSOR_EXISTS = 1 << 6
STATUS_LAST_ROW_SENT = 1 << 7
STATUS_DB_DROPPED = 1 << 8
STATUS_NO_BACKSLASH_ESCAPES = 1 << 9
desc = {
'SERVER_STATUS_IN_TRANS': (1 << 0, 'Transaction has started'),
'SERVER_STATUS_AUTOCOMMIT': (1 << 1, 'Server in auto_commit mode'),
'SERVER_MORE_RESULTS_EXISTS': (1 << 3, 'Multi query - next query exists'),
'SERVER_QUERY_NO_GOOD_INDEX_USED': (1 << 4, ''),
'SERVER_QUERY_NO_INDEX_USED': (1 << 5, ''),
'SERVER_STATUS_CURSOR_EXISTS': (1 << 6, ''),
'SERVER_STATUS_LAST_ROW_SENT': (1 << 7, ''),
'SERVER_STATUS_DB_DROPPED': (1 << 8, 'A database was dropped'),
'SERVER_STATUS_NO_BACKSLASH_ESCAPES': (1 << 9, ''),
}
class RefreshOption(_constants):
"""Options used when sending the COM_REFRESH server command."""
_prefix = 'REFRESH_'
GRANT = 1 << 0
LOG = 1 << 1
TABLES = 1 << 2
HOST = 1 << 3
STATUS = 1 << 4
THREADS = 1 << 5
SLAVE = 1 << 6
desc = {
'GRANT': (1 << 0, 'Refresh grant tables'),
'LOG': (1 << 1, 'Start on new log file'),
'TABLES': (1 << 2, 'close all tables'),
'HOSTS': (1 << 3, 'Flush host cache'),
'STATUS': (1 << 4, 'Flush status variables'),
'THREADS': (1 << 5, 'Flush thread cache'),
'SLAVE': (1 << 6, 'Reset master info and restart slave thread'),
}
class CharacterSet(_constants):
"""MySQL supported character sets and collations
List of character sets with their collations supported by MySQL. This
maps to the character set we get from the server within the handshake
packet.
The list is hardcode so we avoid a database query when getting the
name of the used character set or collation.
"""
desc = [
# (character set name, collation, default)
None,
("big5","big5_chinese_ci",True), # 1
("latin2","latin2_czech_cs",False), # 2
("dec8","dec8_swedish_ci",True), # 3
("cp850","cp850_general_ci",True), # 4
("latin1","latin1_german1_ci",False), # 5
("hp8","hp8_english_ci",True), # 6
("koi8r","koi8r_general_ci",True), # 7
("latin1","latin1_swedish_ci",True), # 8
("latin2","latin2_general_ci",True), # 9
("swe7","swe7_swedish_ci",True), # 10
("ascii","ascii_general_ci",True), # 11
("ujis","ujis_japanese_ci",True), # 12
("sjis","sjis_japanese_ci",True), # 13
("cp1251","cp1251_bulgarian_ci",False), # 14
("latin1","latin1_danish_ci",False), # 15
("hebrew","hebrew_general_ci",True), # 16
None,
("tis620","tis620_thai_ci",True), # 18
("euckr","euckr_korean_ci",True), # 19
("latin7","latin7_estonian_cs",False), # 20
("latin2","latin2_hungarian_ci",False), # 21
("koi8u","koi8u_general_ci",True), # 22
("cp1251","cp1251_ukrainian_ci",False), # 23
("gb2312","gb2312_chinese_ci",True), # 24
("greek","greek_general_ci",True), # 25
("cp1250","cp1250_general_ci",True), # 26
("latin2","latin2_croatian_ci",False), # 27
("gbk","gbk_chinese_ci",True), # 28
("cp1257","cp1257_lithuanian_ci",False), # 29
("latin5","latin5_turkish_ci",True), # 30
("latin1","latin1_german2_ci",False), # 31
("armscii8","armscii8_general_ci",True), # 32
("utf8","utf8_general_ci",True), # 33
("cp1250","cp1250_czech_cs",False), # 34
("ucs2","ucs2_general_ci",True), # 35
("cp866","cp866_general_ci",True), # 36
("keybcs2","keybcs2_general_ci",True), # 37
("macce","macce_general_ci",True), # 38
("macroman","macroman_general_ci",True), # 39
("cp852","cp852_general_ci",True), # 40
("latin7","latin7_general_ci",True), # 41
("latin7","latin7_general_cs",False), # 42
("macce","macce_bin",False), # 43
("cp1250","cp1250_croatian_ci",False), # 44
None,
None,
("latin1","latin1_bin",False), # 47
("latin1","latin1_general_ci",False), # 48
("latin1","latin1_general_cs",False), # 49
("cp1251","cp1251_bin",False), # 50
("cp1251","cp1251_general_ci",True), # 51
("cp1251","cp1251_general_cs",False), # 52
("macroman","macroman_bin",False), # 53
None,
None,
None,
("cp1256","cp1256_general_ci",True), # 57
("cp1257","cp1257_bin",False), # 58
("cp1257","cp1257_general_ci",True), # 59
None,
None,
None,
("binary","binary",True), # 63
("armscii8","armscii8_bin",False), # 64
("ascii","ascii_bin",False), # 65
("cp1250","cp1250_bin",False), # 66
("cp1256","cp1256_bin",False), # 67
("cp866","cp866_bin",False), # 68
("dec8","dec8_bin",False), # 69
("greek","greek_bin",False), # 70
("hebrew","hebrew_bin",False), # 71
("hp8","hp8_bin",False), # 72
("keybcs2","keybcs2_bin",False), # 73
("koi8r","koi8r_bin",False), # 74
("koi8u","koi8u_bin",False), # 75
None,
("latin2","latin2_bin",False), # 77
("latin5","latin5_bin",False), # 78
("latin7","latin7_bin",False), # 79
("cp850","cp850_bin",False), # 80
("cp852","cp852_bin",False), # 81
("swe7","swe7_bin",False), # 82
("utf8","utf8_bin",False), # 83
("big5","big5_bin",False), # 84
("euckr","euckr_bin",False), # 85
("gb2312","gb2312_bin",False), # 86
("gbk","gbk_bin",False), # 87
("sjis","sjis_bin",False), # 88
("tis620","tis620_bin",False), # 89
("ucs2","ucs2_bin",False), # 90
("ujis","ujis_bin",False), # 91
("geostd8","geostd8_general_ci",True), # 92
("geostd8","geostd8_bin",False), # 93
("latin1","latin1_spanish_ci",False), # 94
("cp932","cp932_japanese_ci",True), # 95
("cp932","cp932_bin",False), # 96
("eucjpms","eucjpms_japanese_ci",True), # 97
("eucjpms","eucjpms_bin",False), # 98
("cp1250","cp1250_polish_ci",False), # 99
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
("ucs2","ucs2_unicode_ci",False), # 128
("ucs2","ucs2_icelandic_ci",False), # 129
("ucs2","ucs2_latvian_ci",False), # 130
("ucs2","ucs2_romanian_ci",False), # 131
("ucs2","ucs2_slovenian_ci",False), # 132
("ucs2","ucs2_polish_ci",False), # 133
("ucs2","ucs2_estonian_ci",False), # 134
("ucs2","ucs2_spanish_ci",False), # 135
("ucs2","ucs2_swedish_ci",False), # 136
("ucs2","ucs2_turkish_ci",False), # 137
("ucs2","ucs2_czech_ci",False), # 138
("ucs2","ucs2_danish_ci",False), # 139
("ucs2","ucs2_lithuanian_ci",False), # 140
("ucs2","ucs2_slovak_ci",False), # 141
("ucs2","ucs2_spanish2_ci",False), # 142
("ucs2","ucs2_roman_ci",False), # 143
("ucs2","ucs2_persian_ci",False), # 144
("ucs2","ucs2_esperanto_ci",False), # 145
("ucs2","ucs2_hungarian_ci",False), # 146
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
("utf8","utf8_unicode_ci",False), # 192
("utf8","utf8_icelandic_ci",False), # 193
("utf8","utf8_latvian_ci",False), # 194
("utf8","utf8_romanian_ci",False), # 195
("utf8","utf8_slovenian_ci",False), # 196
("utf8","utf8_polish_ci",False), # 197
("utf8","utf8_estonian_ci",False), # 198
("utf8","utf8_spanish_ci",False), # 199
("utf8","utf8_swedish_ci",False), # 200
("utf8","utf8_turkish_ci",False), # 201
("utf8","utf8_czech_ci",False), # 202
("utf8","utf8_danish_ci",False), # 203
("utf8","utf8_lithuanian_ci",False), # 204
("utf8","utf8_slovak_ci",False), # 205
("utf8","utf8_spanish2_ci",False), # 206
("utf8","utf8_roman_ci",False), # 207
("utf8","utf8_persian_ci",False), # 208
("utf8","utf8_esperanto_ci",False), # 209
("utf8","utf8_hungarian_ci",False), # 210
]
@classmethod
def get_info(cls,setid):
"""Retrieves character set information as tuple using an ID
Retrieves character set and collation information based on the
given MySQL ID.
Returns a tuple.
"""
try:
r = cls.desc[setid]
if r is None:
raise
return r[0:2]
except:
raise ProgrammingError("Character set '%d' unsupported" % (setid))
@classmethod
def get_desc(cls,setid):
"""Retrieves character set information as string using an ID
Retrieves character set and collation information based on the
given MySQL ID.
Returns a tuple.
"""
try:
return "%s/%s" % cls.get_info(setid)
except:
raise
@classmethod
def get_default_collation(cls, charset):
"""Retrieves the default collation for given character set
Raises ProgrammingError when character set is not supported.
Returns list (collation, charset, index)
"""
if isinstance(charset, int):
try:
c = cls.desc[charset]
return c[1], c[0], charset
except:
ProgrammingError("Character set ID '%s' unsupported." % (
charset))
for cid, c in enumerate(cls.desc):
if c is None:
continue
if c[0] == charset and c[2] is True:
return c[1], c[0], cid
raise ProgrammingError("Character set '%s' unsupported." % (charset))
@classmethod
def get_charset_info(cls, charset, collation=None):
"""Retrieves character set information as tuple using a name
Retrieves character set and collation information based on the
given a valid name. If charset is an integer, it will look up
the character set based on the MySQL's ID.
Raises ProgrammingError when character set is not supported.
Returns a tuple.
"""
idx = None
if isinstance(charset, int):
try:
c = cls.desc[charset]
return charset, c[0], c[1]
except:
ProgrammingError("Character set ID '%s' unsupported." % (
charset))
if collation is None:
collation, charset, idx = cls.get_default_collation(charset)
else:
for cid, c in enumerate(cls.desc):
if c is None:
continue
if c[0] == charset and c[1] == collation:
idx = cid
break
if idx is not None:
return (idx,charset,collation)
else:
raise ProgrammingError("Character set '%s' unsupported." % (
charset))
@classmethod
def get_supported(cls):
"""Retrieves a list with names of all supproted character sets
Returns a tuple.
"""
res = []
for info in cls.desc:
if info and info[0] not in res:
res.append(info[0])
return tuple(res)