Gecko [ biogenelab.eu ]

Name	Size	Permission
__init__.py	1.68 KB	-rw-r--r--
__init__.pyc	2.56 KB	-rw-r--r--
annotation.py	5.97 KB	-rw-r--r--
annotation.pyc	6.39 KB	-rw-r--r--
base.py	20.97 KB	-rw-r--r--
base.pyc	26.95 KB	-rw-r--r--
compiler.py	106.86 KB	-rw-r--r--
compiler.pyc	94.95 KB	-rw-r--r--
ddl.py	28.02 KB	-rw-r--r--
ddl.pyc	31.76 KB	-rw-r--r--
default_comparator.py	12.82 KB	-rw-r--r--
default_comparator.pyc	10.57 KB	-rw-r--r--
dml.py	29.35 KB	-rw-r--r--
dml.pyc	29.88 KB	-rw-r--r--
elements.py	119.21 KB	-rw-r--r--
elements.pyc	135.15 KB	-rw-r--r--
expression.py	5.54 KB	-rw-r--r--
expression.pyc	5.74 KB	-rw-r--r--
functions.py	17.46 KB	-rw-r--r--
functions.pyc	20.95 KB	-rw-r--r--
naming.py	4.48 KB	-rw-r--r--
naming.pyc	5.3 KB	-rw-r--r--
operators.py	21.98 KB	-rw-r--r--
operators.pyc	31.5 KB	-rw-r--r--
schema.py	131.69 KB	-rw-r--r--
schema.pyc	130.05 KB	-rw-r--r--
selectable.py	108.96 KB	-rw-r--r--
selectable.pyc	114.6 KB	-rw-r--r--
sqltypes.py	53.35 KB	-rw-r--r--
sqltypes.pyc	61.85 KB	-rw-r--r--
type_api.py	36.81 KB	-rw-r--r--
type_api.pyc	38.79 KB	-rw-r--r--
util.py	19.04 KB	-rw-r--r--
util.pyc	19.91 KB	-rw-r--r--
visitors.py	9.71 KB	-rw-r--r--
visitors.pyc	11.73 KB	-rw-r--r--

Code Editor : naming.py

# sqlalchemy/naming.py
# Copyright (C) 2005-2014 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php

"""Establish constraint and index naming conventions.

"""

from .schema import Constraint, ForeignKeyConstraint, PrimaryKeyConstraint, \
    UniqueConstraint, CheckConstraint, Index, Table, Column
from .. import event, events
from .. import exc
from .elements import _truncated_label, _defer_name, _defer_none_name, conv
import re

class ConventionDict(object):

def __init__(self, const, table, convention):
        self.const = const
        self._is_fk = isinstance(const, ForeignKeyConstraint)
        self.table = table
        self.convention = convention
        self._const_name = const.name

def _key_table_name(self):
        return self.table.name

def _column_X(self, idx):
        if self._is_fk:
            fk = self.const.elements[idx]
            return fk.parent
        else:
            return list(self.const.columns)[idx]

def _key_constraint_name(self):
        if isinstance(self._const_name, (type(None), _defer_none_name)):
            raise exc.InvalidRequestError(
                "Naming convention including "
                "%(constraint_name)s token requires that "
                "constraint is explicitly named."
            )
        if not isinstance(self._const_name, conv):
            self.const.name = None
        return self._const_name

def _key_column_X_name(self, idx):
        return self._column_X(idx).name

def _key_column_X_label(self, idx):
        return self._column_X(idx)._label

def _key_referred_table_name(self):
        fk = self.const.elements[0]
        refs = fk.target_fullname.split(".")
        if len(refs) == 3:
            refschema, reftable, refcol = refs
        else:
            reftable, refcol = refs
        return reftable

def _key_referred_column_X_name(self, idx):
        fk = self.const.elements[idx]
        refs = fk.target_fullname.split(".")
        if len(refs) == 3:
            refschema, reftable, refcol = refs
        else:
            reftable, refcol = refs
        return refcol

def __getitem__(self, key):
        if key in self.convention:
            return self.convention[key](self.const, self.table)
        elif hasattr(self, '_key_%s' % key):
            return getattr(self, '_key_%s' % key)()
        else:
            col_template = re.match(r".*_?column_(\d+)_.+", key)
            if col_template:
                idx = col_template.group(1)
                attr = "_key_" + key.replace(idx, "X")
                idx = int(idx)
                if hasattr(self, attr):
                    return getattr(self, attr)(idx)
        raise KeyError(key)

_prefix_dict = {
    Index: "ix",
    PrimaryKeyConstraint: "pk",
    CheckConstraint: "ck",
    UniqueConstraint: "uq",
    ForeignKeyConstraint: "fk"
}

def _get_convention(dict_, key):

for super_ in key.__mro__:
        if super_ in _prefix_dict and _prefix_dict[super_] in dict_:
            return dict_[_prefix_dict[super_]]
        elif super_ in dict_:
            return dict_[super_]
    else:
        return None

def _constraint_name_for_table(const, table):
    metadata = table.metadata
    convention = _get_convention(metadata.naming_convention, type(const))

if isinstance(const.name, conv):
        return const.name
    elif convention is not None and (
        const.name is None or not isinstance(const.name, conv) and
            "constraint_name" in convention
    ):
        return conv(
            convention % ConventionDict(const, table,
                                        metadata.naming_convention)
        )
    elif isinstance(convention, _defer_none_name):
        return None

@event.listens_for(Constraint, "after_parent_attach")
@event.listens_for(Index, "after_parent_attach")
def _constraint_name(const, table):
    if isinstance(table, Column):
        # for column-attached constraint, set another event
        # to link the column attached to the table as this constraint
        # associated with the table.
        event.listen(table, "after_parent_attach",
                     lambda col, table: _constraint_name(const, table)
                     )
    elif isinstance(table, Table):
        if isinstance(const.name, (conv, _defer_name)):
            return

newname = _constraint_name_for_table(const, table)
        if newname is not None:
            const.name = newname

${this.title}

Code Editor : naming.py