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Aka: Add SQLite3 backend.
This commit is contained in:
Valentin Lorentz
parent
fb0ef31d94
commit
18708a2678
@ -12,11 +12,8 @@ isn't any way to get around it. You can get it from [Python homepage].
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[Twisted] -- Version 1.2.0 or greater (unless you actually want to use Twisted,
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you don't actually need it)
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[SQLAlchemy] -- If you want the Aka plugin (and probably other plugins in the future)
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[PySQLite]:https://code.google.com/p/pysqlite/
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[Twisted]:http://twistedmatrix.com/trac/
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[SQLAlchemy]:http://www.sqlalchemy.org/
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For more information and help on how to use Supybot, checkout
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the documents under [docs/], especially [GETTING_STARTED] and
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@ -32,6 +32,7 @@ import re
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import os
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import sys
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import datetime
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import operator
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import supybot.conf as conf
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import supybot.utils as utils
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@ -43,18 +44,166 @@ import supybot.callbacks as callbacks
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from supybot.i18n import PluginInternationalization
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_ = PluginInternationalization('Aka')
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try:
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import sqlite3
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except ImportError:
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sqlite3 = None
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try:
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import sqlalchemy
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import sqlalchemy.ext
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import sqlalchemy.ext.declarative
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except ImportError:
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raise callbacks.Error('You have to install python-sqlalchemy in order '
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'to load this plugin.')
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sqlalchemy = None
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if sqlalchemy:
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if not (sqlite3 or sqlalchemy):
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raise callbacks.Error('You have to install python-sqlite3 or '
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'python-sqlalchemy in order to load this plugin.')
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available_db = {}
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class Alias(object):
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__slots__ = ('name', 'alias', 'locked', 'locked_by', 'locked_at')
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def __init__(self, name, alias):
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self.name = name
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self.alias = alias
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self.locked = False
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self.locked_by = None
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self.locked_at = None
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def __repr__(self):
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return "<Alias('%r', '%r')>" % (self.name, self.alias)
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if sqlite3:
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class SQLiteAlias(Alias):
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__slots__ = ()
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pass
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class SQLiteAkaDB(object):
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__slots__ = ('engines', 'filename', 'dbs',)
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def __init__(self, filename):
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self.engines = ircutils.IrcDict()
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self.filename = filename.replace('sqlite3', 'sqlalchemy')
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def close(self):
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self.dbs.clear()
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def get_db(self, channel):
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if channel in self.engines:
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engine = self.engines[channel]
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else:
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filename = plugins.makeChannelFilename(self.filename, channel)
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exists = os.path.exists(filename)
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engine = sqlite3.connect(filename, check_same_thread=False)
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if not exists:
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cursor = engine.cursor()
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cursor.execute("""CREATE TABLE aliases (
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id INTEGER NOT NULL,
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name VARCHAR NOT NULL,
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alias VARCHAR NOT NULL,
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locked BOOLEAN NOT NULL,
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locked_by VARCHAR,
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locked_at DATETIME,
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PRIMARY KEY (id),
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UNIQUE (name))""")
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engine.commit()
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self.engines[channel] = engine
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assert engine.execute("select 1").fetchone() == (1,)
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return engine
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def has_aka(self, channel, name):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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return self.get_db(channel).cursor() \
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.execute("""SELECT COUNT() as count
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FROM aliases WHERE name = ?;""", (name,)) \
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.fetchone()[0]
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def get_aka_list(self, channel):
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cursor = self.get_db(channel).cursor()
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cursor.execute("""SELECT name FROM aliases;""")
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list_ = cursor.fetchall()
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return list_
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def get_alias(self, channel, name):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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cursor = self.get_db(channel).cursor()
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cursor.execute("""SELECT alias FROM aliases
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WHERE name = ?;""", (name,))
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r = cursor.fetchone()
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if r:
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return r[0]
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else:
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return None
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def add_aka(self, channel, name, alias):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if self.has_aka(channel, name):
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raise AkaError(_('This Aka already exists.'))
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if sys.version_info[0] < 3:
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if isinstance(name, str):
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name = name.decode('utf8')
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if isinstance(alias, str):
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alias = alias.decode('utf8')
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db = self.get_db(channel)
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cursor = db.cursor().execute('SELECT MAX(id) FROM aliases;')
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max_id = cursor.fetchone()[0]
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if max_id is None:
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max_id = 0
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cursor.execute("""INSERT INTO aliases VALUES (
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?, ?, ?, 0, NULL, NULL);""", (str(max_id+1), name, alias))
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db.commit()
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def remove_aka(self, channel, name):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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db.cursor().execute('DELETE FROM aliases WHERE name = ?', (name,))
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db.commit()
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def lock_aka(self, channel, name, by):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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cursor = db.cursor().execute("""UPDATE aliases
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SET locked=1, locked_at=?, locked_by=? WHERE name = ?""",
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(datetime.datetime.now(), by, name))
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if cursor.rowcount == 0:
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raise AkaError(_('This Aka does not exist'))
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db.commit()
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def unlock_aka(self, channel, name, by):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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cursor = db.cursor()
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cursor.execute("""UPDATE aliases SET locked=0, locked_at=?
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WHERE name = ?""", (datetime.datetime.now(), name))
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if cursor.rowcount == 0:
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raise AkaError(_('This Aka does not exist'))
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db.commit()
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def get_aka_lock(self, channel, name):
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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cursor = self.get_db(channel).cursor()
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cursor.execute("""SELECT locked, locked_by, locked_at
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FROM aliases WHERE name = ?;""", (name,))
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r = cursor.fetchone()
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if r:
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return (bool(r[0]), r[1], r[2])
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else:
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raise AkaError(_('This Aka does not exist'))
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available_db.update({'sqlite3': SQLiteAkaDB})
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elif sqlalchemy:
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Base = sqlalchemy.ext.declarative.declarative_base()
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class Alias(Base):
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class SQLAlchemyAlias(Alias, Base):
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__slots__ = ()
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__tablename__ = 'aliases'
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id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True)
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@ -65,18 +214,10 @@ if sqlalchemy:
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locked_by = sqlalchemy.Column(sqlalchemy.String, nullable=True)
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locked_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
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def __init__(self, name, alias):
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self.name = name
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self.alias = alias
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self.locked = False
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self.locked_by = None
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self.locked_at = None
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def __repr__(self):
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return "<Alias('%r', '%r')>" % (self.name, self.alias)
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# TODO: Add table for usage statistics
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class SqlAlchemyAkaDB(object):
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__slots__ = ('engines', 'filename', 'sqlalchemy', 'dbs')
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def __init__(self, filename):
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self.engines = ircutils.IrcDict()
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self.filename = filename
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@ -105,12 +246,12 @@ if sqlalchemy:
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name = callbacks.canonicalName(name, preserve_spaces=True)
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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count = self.get_db(channel).query(Alias) \
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.filter(Alias.name == name) \
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count = self.get_db(channel).query(SQLAlchemyAlias) \
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.filter(SQLAlchemyAlias.name == name) \
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.count()
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return bool(count)
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def get_aka_list(self, channel):
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list_ = list(self.get_db(channel).query(Alias.name))
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list_ = list(self.get_db(channel).query(SQLAlchemyAlias.name))
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return list_
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def get_alias(self, channel, name):
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@ -118,8 +259,8 @@ if sqlalchemy:
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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try:
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return self.get_db(channel).query(Alias.alias) \
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.filter(Alias.name == name).one()[0]
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return self.get_db(channel).query(SQLAlchemyAlias.alias) \
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.filter(SQLAlchemyAlias.name == name).one()[0]
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except sqlalchemy.orm.exc.NoResultFound:
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return None
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@ -133,7 +274,7 @@ if sqlalchemy:
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if isinstance(alias, str):
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alias = alias.decode('utf8')
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db = self.get_db(channel)
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db.add(Alias(name, alias))
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db.add(SQLAlchemyAlias(name, alias))
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db.commit()
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def remove_aka(self, channel, name):
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@ -141,7 +282,7 @@ if sqlalchemy:
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if sys.version_info[0] < 3 and isinstance(name, str):
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name = name.decode('utf8')
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db = self.get_db(channel)
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db.query(Alias).filter(Alias.name == name).delete()
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db.query(SQLAlchemyAlias).filter(SQLAlchemyAlias.name == name).delete()
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db.commit()
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def lock_aka(self, channel, name, by):
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@ -150,8 +291,8 @@ if sqlalchemy:
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name = name.decode('utf8')
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db = self.get_db(channel)
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try:
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aka = db.query(Alias) \
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.filter(Alias.name == name).one()
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aka = db.query(SQLAlchemyAlias) \
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.filter(SQLAlchemyAlias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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if aka.locked:
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@ -167,8 +308,8 @@ if sqlalchemy:
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name = name.decode('utf8')
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db = self.get_db(channel)
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try:
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aka = db.query(Alias) \
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.filter(Alias.name == name).one()
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aka = db.query(SQLAlchemyAlias) \
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.filter(SQLAlchemyAlias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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if not aka.locked:
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@ -184,11 +325,13 @@ if sqlalchemy:
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name = name.decode('utf8')
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try:
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return self.get_db(channel) \
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.query(Alias.locked, Alias.locked_by, Alias.locked_at)\
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.filter(Alias.name == name).one()
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.query(SQLAlchemyAlias.locked, SQLAlchemyAlias.locked_by, SQLAlchemyAlias.locked_at)\
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.filter(SQLAlchemyAlias.name == name).one()
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except sqlalchemy.orm.exc.NoResultFound:
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raise AkaError(_('This Aka does not exist'))
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available_db.update({'sqlalchemy': SqlAlchemyAkaDB})
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def getArgs(args, required=1, optional=0, wildcard=0):
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if len(args) < required:
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@ -229,7 +372,7 @@ def findBiggestAt(alias):
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else:
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return 0
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AkaDB = plugins.DB('Aka', {'sqlalchemy': SqlAlchemyAkaDB})
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AkaDB = plugins.DB('Aka', available_db)
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class Aka(callbacks.Plugin):
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"""Add the help for "@plugin help Aka" here
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