Gecko [ biogenelab.eu ]

Name	Size	Permission
__init__.py	7.79 KB	-rw-r--r--
__init__.pyc	9.05 KB	-rw-r--r--
attributes.py	54.22 KB	-rw-r--r--
attributes.pyc	52.92 KB	-rw-r--r--
base.py	12.91 KB	-rw-r--r--
base.pyc	13.01 KB	-rw-r--r--
collections.py	52.03 KB	-rw-r--r--
collections.pyc	59.75 KB	-rw-r--r--
dependency.py	44.99 KB	-rw-r--r--
dependency.pyc	27.71 KB	-rw-r--r--
deprecated_interfaces.py	21.43 KB	-rw-r--r--
deprecated_interfaces.pyc	24.62 KB	-rw-r--r--
descriptor_props.py	23.88 KB	-rw-r--r--
descriptor_props.pyc	26.52 KB	-rw-r--r--
dynamic.py	13.03 KB	-rw-r--r--
dynamic.pyc	14.09 KB	-rw-r--r--
evaluator.py	4.91 KB	-rw-r--r--
evaluator.pyc	6.99 KB	-rw-r--r--
events.py	68.96 KB	-rw-r--r--
events.pyc	74.7 KB	-rw-r--r--
exc.py	5.31 KB	-rw-r--r--
exc.pyc	7.46 KB	-rw-r--r--
identity.py	6.92 KB	-rw-r--r--
identity.pyc	10.32 KB	-rw-r--r--
instrumentation.py	16.39 KB	-rw-r--r--
instrumentation.pyc	18.85 KB	-rw-r--r--
interfaces.py	18.54 KB	-rw-r--r--
interfaces.pyc	22.92 KB	-rw-r--r--
loading.py	20.76 KB	-rw-r--r--
loading.pyc	13.17 KB	-rw-r--r--
mapper.py	105.8 KB	-rw-r--r--
mapper.pyc	79.27 KB	-rw-r--r--
path_registry.py	7.49 KB	-rw-r--r--
path_registry.pyc	11.72 KB	-rw-r--r--
persistence.py	39.9 KB	-rw-r--r--
persistence.pyc	30.86 KB	-rw-r--r--
properties.py	9.33 KB	-rw-r--r--
properties.pyc	10.22 KB	-rw-r--r--
query.py	128.55 KB	-rw-r--r--
query.pyc	119.57 KB	-rw-r--r--
relationships.py	108.5 KB	-rw-r--r--
relationships.pyc	93.61 KB	-rw-r--r--
scoping.py	5.96 KB	-rw-r--r--
scoping.pyc	7.22 KB	-rw-r--r--
session.py	93.63 KB	-rw-r--r--
session.pyc	87.9 KB	-rw-r--r--
state.py	20.52 KB	-rw-r--r--
state.pyc	23.98 KB	-rw-r--r--
strategies.py	53.02 KB	-rw-r--r--
strategies.pyc	40.73 KB	-rw-r--r--
strategy_options.py	31.42 KB	-rw-r--r--
strategy_options.pyc	32.5 KB	-rw-r--r--
sync.py	4.63 KB	-rw-r--r--
sync.pyc	3.87 KB	-rw-r--r--
unitofwork.py	22.69 KB	-rw-r--r--
unitofwork.pyc	22.02 KB	-rw-r--r--
util.py	34.86 KB	-rw-r--r--
util.pyc	35.23 KB	-rw-r--r--

Code Editor : sync.py

# orm/sync.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

"""private module containing functions used for copying data
between instances based on join conditions.

"""

from . import exc, util as orm_util, attributes

def populate(source, source_mapper, dest, dest_mapper,
             synchronize_pairs, uowcommit, flag_cascaded_pks):
    source_dict = source.dict
    dest_dict = dest.dict

for l, r in synchronize_pairs:
        try:
            # inline of source_mapper._get_state_attr_by_column
            prop = source_mapper._columntoproperty[l]
            value = source.manager[prop.key].impl.get(source, source_dict,
                                                      attributes.PASSIVE_OFF)
        except exc.UnmappedColumnError:
            _raise_col_to_prop(False, source_mapper, l, dest_mapper, r)

try:
            # inline of dest_mapper._set_state_attr_by_column
            prop = dest_mapper._columntoproperty[r]
            dest.manager[prop.key].impl.set(dest, dest_dict, value, None)
        except exc.UnmappedColumnError:
            _raise_col_to_prop(True, source_mapper, l, dest_mapper, r)

# technically the "r.primary_key" check isn't
        # needed here, but we check for this condition to limit
        # how often this logic is invoked for memory/performance
        # reasons, since we only need this info for a primary key
        # destination.
        if flag_cascaded_pks and l.primary_key and \
                r.primary_key and \
                r.references(l):
            uowcommit.attributes[("pk_cascaded", dest, r)] = True

def clear(dest, dest_mapper, synchronize_pairs):
    for l, r in synchronize_pairs:
        if r.primary_key and \
            dest_mapper._get_state_attr_by_column(
                dest, dest.dict, r) is not None:

raise AssertionError(
                "Dependency rule tried to blank-out primary key "
                "column '%s' on instance '%s'" %
                (r, orm_util.state_str(dest))
            )
        try:
            dest_mapper._set_state_attr_by_column(dest, dest.dict, r, None)
        except exc.UnmappedColumnError:
            _raise_col_to_prop(True, None, l, dest_mapper, r)

def update(source, source_mapper, dest, old_prefix, synchronize_pairs):
    for l, r in synchronize_pairs:
        try:
            oldvalue = source_mapper._get_committed_attr_by_column(
                source.obj(), l)
            value = source_mapper._get_state_attr_by_column(
                source, source.dict, l)
        except exc.UnmappedColumnError:
            _raise_col_to_prop(False, source_mapper, l, None, r)
        dest[r.key] = value
        dest[old_prefix + r.key] = oldvalue

def populate_dict(source, source_mapper, dict_, synchronize_pairs):
    for l, r in synchronize_pairs:
        try:
            value = source_mapper._get_state_attr_by_column(
                source, source.dict, l)
        except exc.UnmappedColumnError:
            _raise_col_to_prop(False, source_mapper, l, None, r)

dict_[r.key] = value

def source_modified(uowcommit, source, source_mapper, synchronize_pairs):
    """return true if the source object has changes from an old to a
    new value on the given synchronize pairs

"""
    for l, r in synchronize_pairs:
        try:
            prop = source_mapper._columntoproperty[l]
        except exc.UnmappedColumnError:
            _raise_col_to_prop(False, source_mapper, l, None, r)
        history = uowcommit.get_attribute_history(
            source, prop.key, attributes.PASSIVE_NO_INITIALIZE)
        if bool(history.deleted):
            return True
    else:
        return False

def _raise_col_to_prop(isdest, source_mapper, source_column,
                       dest_mapper, dest_column):
    if isdest:
        raise exc.UnmappedColumnError(
            "Can't execute sync rule for "
            "destination column '%s'; mapper '%s' does not map "
            "this column.  Try using an explicit `foreign_keys` "
            "collection which does not include this column (or use "
            "a viewonly=True relation)." % (dest_column, dest_mapper))
    else:
        raise exc.UnmappedColumnError(
            "Can't execute sync rule for "
            "source column '%s'; mapper '%s' does not map this "
            "column.  Try using an explicit `foreign_keys` "
            "collection which does not include destination column "
            "'%s' (or use a viewonly=True relation)." %
            (source_column, source_mapper, dest_column))

${this.title}

Code Editor : sync.py