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📁 ..
📄 __init__.py(7.9 KB)
📄 __init__.pyc(9.31 KB)
📄 __init__.pyo(9.31 KB)
📄 attributes.py(55.94 KB)
📄 attributes.pyc(55.59 KB)
📄 attributes.pyo(55.32 KB)
📄 base.py(14.32 KB)
📄 base.pyc(15.11 KB)
📄 base.pyo(15.11 KB)
📄 collections.py(51.18 KB)
📄 collections.pyc(62.31 KB)
📄 collections.pyo(62.1 KB)
📄 dependency.py(45.11 KB)
📄 dependency.pyc(28.68 KB)
📄 dependency.pyo(28.59 KB)
📄 deprecated_interfaces.py(17.83 KB)
📄 deprecated_interfaces.pyc(21.11 KB)
📄 deprecated_interfaces.pyo(21.11 KB)
📄 descriptor_props.py(24.95 KB)
📄 descriptor_props.pyc(28.1 KB)
📄 descriptor_props.pyo(28.1 KB)
📄 dynamic.py(12.84 KB)
📄 dynamic.pyc(14.42 KB)
📄 dynamic.pyo(14.42 KB)
📄 evaluator.py(4.7 KB)
📄 evaluator.pyc(7.19 KB)
📄 evaluator.pyo(7.19 KB)
📄 events.py(83.09 KB)
📄 events.pyc(91.58 KB)
📄 events.pyo(91.58 KB)
📄 exc.py(5.31 KB)
📄 exc.pyc(7.75 KB)
📄 exc.pyo(7.75 KB)
📄 identity.py(10.01 KB)
📄 identity.pyc(14.76 KB)
📄 identity.pyo(14.76 KB)
📄 instrumentation.py(17.1 KB)
📄 instrumentation.pyc(20.65 KB)
📄 instrumentation.pyo(20.57 KB)
📄 interfaces.py(21.56 KB)
📄 interfaces.pyc(26.11 KB)
📄 interfaces.pyo(26.11 KB)
📄 loading.py(25.29 KB)
📄 loading.pyc(15.28 KB)
📄 loading.pyo(15.28 KB)
📄 mapper.py(116.54 KB)
📄 mapper.pyc(92.81 KB)
📄 mapper.pyo(92.66 KB)
📄 path_registry.py(7.57 KB)
📄 path_registry.pyc(12.58 KB)
📄 path_registry.pyo(12.58 KB)
📄 persistence.py(52.41 KB)
📄 persistence.pyc(41.25 KB)
📄 persistence.pyo(41.25 KB)
📄 properties.py(10.21 KB)
📄 properties.pyc(11.3 KB)
📄 properties.pyo(11.3 KB)
📄 query.py(150.98 KB)
📄 query.pyc(143.06 KB)
📄 query.pyo(143.02 KB)
📄 relationships.py(115.47 KB)
📄 relationships.pyc(100.36 KB)
📄 relationships.pyo(100.33 KB)
📄 scoping.py(6.27 KB)
📄 scoping.pyc(7.5 KB)
📄 scoping.pyo(7.5 KB)
📄 session.py(117.07 KB)
📄 session.pyc(110.77 KB)
📄 session.pyo(110.6 KB)
📄 state.py(26.85 KB)
📄 state.pyc(28.61 KB)
📄 state.pyo(28.61 KB)
📄 strategies.py(60.93 KB)
📄 strategies.pyc(45.88 KB)
📄 strategies.pyo(45.54 KB)
📄 strategy_options.py(35.07 KB)
📄 strategy_options.pyc(36.87 KB)
📄 strategy_options.pyo(36.87 KB)
📄 sync.py(5.32 KB)
📄 sync.pyc(4.48 KB)
📄 sync.pyo(4.48 KB)
📄 unitofwork.py(23.43 KB)
📄 unitofwork.pyc(23.57 KB)
📄 unitofwork.pyo(23.49 KB)
📄 util.py(37.64 KB)
📄 util.pyc(38.09 KB)
📄 util.pyo(37.94 KB)

Editing: sync.py

# orm/sync.py
# Copyright (C) 2005-2017 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 bulk_populate_inherit_keys(
        source_dict, source_mapper, synchronize_pairs):
    # a simplified version of populate() used by bulk insert mode
    for l, r in synchronize_pairs:
        try:
            prop = source_mapper._columntoproperty[l]
            value = source_dict[prop.key]
        except exc.UnmappedColumnError:
            _raise_col_to_prop(False, source_mapper, l, source_mapper, r)

try:
            prop = source_mapper._columntoproperty[r]
            source_dict[prop.key] = value
        except exc.UnmappedColumnError:
            _raise_col_to_prop(True, source_mapper, l, source_mapper, r)

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) not in orm_util._none_set:

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, passive=attributes.PASSIVE_OFF)
        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, passive=attributes.PASSIVE_OFF)
        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))

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Editing: sync.py

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