265 lines
6.8 KiB
Python
265 lines
6.8 KiB
Python
#!/usr/bin/env python3
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import datetime
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from com.sun.star.util import Time, Date, DateTime
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from easymacro import create_instance, Paths
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from peewee import Database, DateTimeField, DateField, TimeField, \
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__exception_wrapper__
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def _date_to_struct(value):
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if isinstance(value, datetime.datetime):
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d = DateTime()
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d.Year = value.year
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d.Month = value.month
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d.Day = value.day
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d.Hours = value.hour
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d.Minutes = value.minute
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d.Seconds = value.second
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elif isinstance(value, datetime.date):
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d = Date()
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d.Day = value.day
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d.Month = value.month
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d.Year = value.year
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elif isinstance(value, datetime.time):
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d = Time()
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d.Hours = value.hour
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d.Minutes = value.minute
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d.Seconds = value.second
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return d
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def _struct_to_date(value):
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d = None
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if isinstance(value, Time):
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d = datetime.time(value.Hours, value.Minutes, value.Seconds)
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elif isinstance(value, Date):
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if value != Date():
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d = datetime.date(value.Year, value.Month, value.Day)
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elif isinstance(value, DateTime):
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if value.Year > 0:
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d = datetime.datetime(
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value.Year, value.Month, value.Day,
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value.Hours, value.Minutes, value.Seconds)
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return d
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class BaseDateField(DateField):
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def db_value(self, value):
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return _date_to_struct(value)
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def python_value(self, value):
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return _struct_to_date(value)
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class BaseTimeField(TimeField):
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def db_value(self, value):
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return _date_to_struct(value)
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def python_value(self, value):
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return _struct_to_date(value)
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class BaseDateTimeField(DateTimeField):
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def db_value(self, value):
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return _date_to_struct(value)
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def python_value(self, value):
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return _struct_to_date(value)
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class FirebirdDatabase(Database):
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field_types = {'BOOL': 'BOOLEAN', 'DATETIME': 'TIMESTAMP'}
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def __init__(self, database, **kwargs):
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super().__init__(database, **kwargs)
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self._db = database
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def _connect(self):
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return self._db
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def create_tables(self, models, **options):
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options['safe'] = False
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tables = self._db.tables
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models = [m for m in models if not m.__name__.lower() in tables]
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super().create_tables(models, **options)
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def execute_sql(self, sql, params=None, commit=True):
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with __exception_wrapper__:
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cursor = self._db.execute(sql, params)
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return cursor
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def last_insert_id(self, cursor, query_type=None):
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# ~ debug('LAST_ID', cursor)
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return 0
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def rows_affected(self, cursor):
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return self._db.rows_affected
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@property
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def path(self):
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return self._db.path
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class LODocBase(object):
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_type = 'base'
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DB_TYPES = {
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str: 'setString',
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int: 'setInt',
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float: 'setFloat',
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bool: 'setBoolean',
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Date: 'setDate',
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Time: 'setTime',
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DateTime: 'setTimestamp',
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}
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# ~ setArray
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# ~ setBinaryStream
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# ~ setBlob
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# ~ setByte
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# ~ setBytes
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# ~ setCharacterStream
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# ~ setClob
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# ~ setNull
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# ~ setObject
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# ~ setObjectNull
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# ~ setObjectWithInfo
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# ~ setPropertyValue
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# ~ setRef
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def __init__(self, obj, args={}):
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self._obj = obj
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self._dbc = create_instance('com.sun.star.sdb.DatabaseContext')
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self._rows_affected = 0
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path = args.get('path', '')
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self._path = Paths(path)
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self._name = self._path.name
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if Paths.exists(path):
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if not self.is_registered:
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self.register()
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db = self._dbc.getByName(self.name)
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else:
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db = self._dbc.createInstance()
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db.URL = 'sdbc:embedded:firebird'
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db.DatabaseDocument.storeAsURL(self._path.url, ())
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self.register()
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self._obj = db
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self._con = db.getConnection('', '')
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def __contains__(self, item):
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return item in self.tables
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@property
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def obj(self):
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return self._obj
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@property
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def name(self):
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return self._name
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@property
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def path(self):
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return str(self._path)
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@property
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def is_registered(self):
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return self._dbc.hasRegisteredDatabase(self.name)
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@property
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def tables(self):
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tables = [t.Name.lower() for t in self._con.getTables()]
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return tables
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@property
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def rows_affected(self):
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return self._rows_affected
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def register(self):
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if not self.is_registered:
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self._dbc.registerDatabaseLocation(self.name, self._path.url)
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return
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def revoke(self, name):
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self._dbc.revokeDatabaseLocation(name)
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return True
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def save(self):
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self.obj.DatabaseDocument.store()
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self.refresh()
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return
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def close(self):
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self._con.close()
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return
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def refresh(self):
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self._con.getTables().refresh()
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return
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def initialize(self, database_proxy, tables=[]):
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db = FirebirdDatabase(self)
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database_proxy.initialize(db)
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if tables:
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db.create_tables(tables)
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return
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def _validate_sql(self, sql, params):
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limit = ' LIMIT '
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for p in params:
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sql = sql.replace('?', f"'{p}'", 1)
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if limit in sql:
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sql = sql.split(limit)[0]
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sql = sql.replace('SELECT', f'SELECT FIRST {params[-1]}')
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return sql
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def cursor(self, sql, params):
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if sql.startswith('SELECT'):
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sql = self._validate_sql(sql, params)
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cursor = self._con.prepareStatement(sql)
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return cursor
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if not params:
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cursor = self._con.createStatement()
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return cursor
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cursor = self._con.prepareStatement(sql)
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for i, v in enumerate(params, 1):
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t = type(v)
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if not t in self.DB_TYPES:
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error('Type not support')
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debug((i, t, v, self.DB_TYPES[t]))
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getattr(cursor, self.DB_TYPES[t])(i, v)
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return cursor
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def execute(self, sql, params):
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debug(sql, params)
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cursor = self.cursor(sql, params)
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if sql.startswith('SELECT'):
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result = cursor.executeQuery()
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elif params:
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result = cursor.executeUpdate()
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self._rows_affected = result
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self.save()
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else:
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result = cursor.execute(sql)
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self.save()
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return result
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def select(self, sql):
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debug('SELECT', sql)
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if not sql.startswith('SELECT'):
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return ()
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cursor = self._con.prepareStatement(sql)
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query = cursor.executeQuery()
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return BaseQuery(query)
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def get_query(self, query):
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sql, args = query.sql()
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sql = self._validate_sql(sql, args)
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return self.select(sql)
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