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[commands] Add MissingPermissions and BotMissingPermissions

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This commit is contained in:
ReinaSakuraba 2017-08-30 17:55:48 -07:00 committed by Rapptz
parent 63bca6604b
commit 8646bddc90
1 changed files with 43 additions and 1 deletions
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44
discord/ext/commands/errors.py
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@ -29,7 +29,8 @@ from discord.errors import DiscordException
__all__ = [ 'CommandError', 'MissingRequiredArgument', 'BadArgument',
'NoPrivateMessage', 'CheckFailure', 'CommandNotFound',
'DisabledCommand', 'CommandInvokeError', 'TooManyArguments',
'UserInputError', 'CommandOnCooldown', 'NotOwner' ]
'UserInputError', 'CommandOnCooldown', 'NotOwner',
'MissingPermissions', 'BotMissingPermissions']
class CommandError(DiscordException):
"""The base exception type for all command related errors.
@ -136,3 +137,44 @@ class CommandOnCooldown(CommandError):
self.cooldown = cooldown
self.retry_after = retry_after
super().__init__('You are on cooldown. Try again in {:.2f}s'.format(retry_after))
class MissingPermissions(CheckFailure):
"""Exception raised when the command invoker lacks permissions to run
command.
Attributes
-----------
missing_perms: list
The required permissions that are missing.
"""
def __init__(self, missing_perms, *args):
self.missing_perms = missing_perms
missing = [perm.replace('_', ' ').replace('guild', 'server').title() for perm in missing_perms]
if len(missing) > 2:
fmt = '{}, and {}'.format(", ".join(missing[:-1]), missing[-1])
else:
fmt = ' and '.join(missing)
message = 'You are missing {} permission(s) to run command.'.format(fmt)
super().__init__(message, *args)
class BotMissingPermissions(CheckFailure):
"""Exception raised when the bot lacks permissions to run command.
Attributes
-----------
missing_perms: list
The required permissions that are missing.
"""
def __init__(self, missing_perms, *args):
self.missing_perms = missing_perms
missing = [perm.replace('_', ' ').replace('guild', 'server').title() for perm in missing_perms]
if len(missing) > 2:
fmt = '{}, and {}'.format(", ".join(missing[:-1]), missing[-1])
else:
fmt = ' and '.join(missing)
message = 'Bot requires {} permission(s) to run command.'.format(fmt)
super().__init__(message, *args)