/usr/lib/python2.7/dist-packages/tryton/gui/window/view_form/model/field.py is in tryton-client 3.8.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# this repository contains the full copyright notices and license terms.
import os
from itertools import chain
import tempfile
import locale
from tryton.common import \
domain_inversion, eval_domain, localize_domain, \
merge, inverse_leaf, filter_leaf, concat, simplify, unique_value, \
EvalEnvironment
import tryton.common as common
import datetime
import decimal
from decimal import Decimal
import math
from tryton.common import RPCExecute, RPCException
import tryton.rpc as rpc
class Field(object):
'''
get: return the values to write to the server
get_client: return the value for the client widget (form_gtk)
set: save the value from the server
set_client: save the value from the widget
'''
_default = None
@staticmethod
def get_field(ctype):
return TYPES.get(ctype, CharField)
def __init__(self, attrs):
self.attrs = attrs
self.name = attrs['name']
def sig_changed(self, record):
if self.get_state_attrs(record).get('readonly', False):
return
record.on_change([self.name])
record.on_change_with([self.name])
record.autocomplete_with(self.name)
record.set_field_context()
def domains_get(self, record, pre_validate=None):
screen_domain = domain_inversion(
[record.group.domain4inversion, pre_validate or []],
self.name, EvalEnvironment(record))
if isinstance(screen_domain, bool) and not screen_domain:
screen_domain = [('id', '=', None)]
elif isinstance(screen_domain, bool) and screen_domain:
screen_domain = []
attr_domain = record.expr_eval(self.attrs.get('domain', []))
return screen_domain, attr_domain
def domain_get(self, record):
screen_domain, attr_domain = self.domains_get(record)
return concat(localize_domain(screen_domain), attr_domain)
def validation_domains(self, record, pre_validate=None):
return concat(*self.domains_get(record, pre_validate))
def context_get(self, record):
context = record.context_get().copy()
if record.parent:
context.update(record.parent.context_get())
context.update(record.expr_eval(self.attrs.get('context', {})))
return context
def _is_empty(self, record):
return not self.get_eval(record)
def check_required(self, record):
state_attrs = self.get_state_attrs(record)
if bool(int(state_attrs.get('required') or 0)):
if (self._is_empty(record)
and not bool(int(state_attrs.get('readonly') or 0))):
return False
return True
def validate(self, record, softvalidation=False, pre_validate=None):
if self.attrs.get('readonly'):
return True
invalid = False
self.get_state_attrs(record)['domain_readonly'] = False
domain = simplify(self.validation_domains(record, pre_validate))
if not softvalidation:
if not self.check_required(record):
invalid = 'required'
if isinstance(domain, bool):
if not domain:
invalid = 'domain'
elif domain == [('id', '=', None)]:
invalid = 'domain'
else:
unique, leftpart, value = unique_value(domain)
if unique:
# If the inverted domain is so constraint that only one value
# is possible we should use it. But we must also pay attention
# to the fact that the original domain might be a 'OR' domain
# and thus not preventing the modification of fields.
if value is False:
# XXX to remove once server domains are fixed
value = None
setdefault = True
if record.group.domain:
original_domain = merge(record.group.domain)
else:
original_domain = merge(domain)
domain_readonly = original_domain[0] == 'AND'
if '.' in leftpart:
recordpart, localpart = leftpart.split('.', 1)
constraintfields = set()
if domain_readonly:
for leaf in localize_domain(original_domain[1:]):
constraintfields.add(leaf[0])
if localpart != 'id' or recordpart not in constraintfields:
setdefault = False
if setdefault and not pre_validate:
self.set_client(record, value)
self.get_state_attrs(record)['domain_readonly'] = (
domain_readonly)
if not eval_domain(domain, EvalEnvironment(record)):
invalid = domain
self.get_state_attrs(record)['invalid'] = invalid
return not invalid
def set(self, record, value):
record.value[self.name] = value
def get(self, record):
return record.value.get(self.name, self._default)
def get_eval(self, record):
return self.get(record)
def get_on_change_value(self, record):
return self.get_eval(record)
def set_client(self, record, value, force_change=False):
previous_value = self.get(record)
self.set(record, value)
if previous_value != self.get(record):
record.modified_fields.setdefault(self.name)
record.signal('record-modified')
self.sig_changed(record)
record.validate(softvalidation=True)
record.signal('record-changed')
elif force_change:
self.sig_changed(record)
record.validate(softvalidation=True)
record.signal('record-changed')
def get_client(self, record):
return self.get(record)
def set_default(self, record, value):
self.set(record, value)
record.modified_fields.setdefault(self.name)
def set_on_change(self, record, value):
record.modified_fields.setdefault(self.name)
self.set(record, value)
def state_set(self, record, states=('readonly', 'required', 'invisible')):
state_changes = record.expr_eval(self.attrs.get('states', {}))
for key in states:
if key == 'readonly' and self.attrs.get(key, False):
continue
if key in state_changes:
self.get_state_attrs(record)[key] = state_changes[key]
elif key in self.attrs:
self.get_state_attrs(record)[key] = self.attrs[key]
if (record.group.readonly
or self.get_state_attrs(record).get('domain_readonly')):
self.get_state_attrs(record)['readonly'] = True
def get_state_attrs(self, record):
if self.name not in record.state_attrs:
record.state_attrs[self.name] = self.attrs.copy()
if record.group.readonly or record.readonly:
record.state_attrs[self.name]['readonly'] = True
return record.state_attrs[self.name]
def get_timestamp(self, record):
return {}
class CharField(Field):
_default = ''
def get(self, record):
return super(CharField, self).get(record) or self._default
class SelectionField(Field):
_default = None
def get_client(self, record):
return record.value.get(self.name)
class DateTimeField(Field):
_default = None
def set_client(self, record, value, force_change=False):
if isinstance(value, datetime.time):
current_value = self.get_client(record)
if current_value:
value = datetime.datetime.combine(
current_value.date(), value)
else:
value = None
elif value and not isinstance(value, datetime.datetime):
current_value = self.get_client(record)
if current_value:
time = current_value.time()
else:
time = datetime.time()
value = datetime.datetime.combine(value, time)
if value:
value = common.untimezoned_date(value)
super(DateTimeField, self).set_client(record, value,
force_change=force_change)
def get_client(self, record):
value = super(DateTimeField, self).get_client(record)
if value:
return common.timezoned_date(value)
def date_format(self, record):
context = self.context_get(record)
return context.get('date_format', '%x')
def time_format(self, record):
return record.expr_eval(self.attrs['format'])
class DateField(Field):
_default = None
def set_client(self, record, value, force_change=False):
if isinstance(value, datetime.datetime):
assert(value.time() == datetime.time())
value = value.date()
super(DateField, self).set_client(record, value,
force_change=force_change)
def date_format(self, record):
context = self.context_get(record)
return context.get('date_format', '%x')
class TimeField(Field):
_default = None
def _is_empty(self, record):
return self.get(record) is None
def set_client(self, record, value, force_change=False):
if isinstance(value, datetime.datetime):
value = value.time()
super(TimeField, self).set_client(record, value,
force_change=force_change)
def time_format(self, record):
return record.expr_eval(self.attrs['format'])
class TimeDeltaField(Field):
_default = None
def _is_empty(self, record):
return self.get(record) is None
def converter(self, record):
# TODO allow local context converter
return rpc.CONTEXT.get(self.attrs.get('converter'))
def set_client(self, record, value, force_change=False):
if isinstance(value, basestring):
value = common.timedelta.parse(value, self.converter(record))
super(TimeDeltaField, self).set_client(
record, value, force_change=force_change)
def get_client(self, record):
value = super(TimeDeltaField, self).get_client(record)
return common.timedelta.format(value, self.converter(record))
class FloatField(Field):
_default = None
def _is_empty(self, record):
return self.get(record) is None
def get(self, record):
return record.value.get(self.name, self._default)
def digits(self, record, factor=1):
digits = record.expr_eval(self.attrs.get('digits'))
if not digits or any(d is None for d in digits):
return
shift = int(round(math.log(abs(factor), 10)))
return (digits[0] + shift, digits[1] - shift)
def convert(self, value):
try:
return locale.atof(value)
except ValueError:
return self._default
def set_client(self, record, value, force_change=False, factor=1):
if isinstance(value, basestring):
value = self.convert(value)
if value is not None:
value /= factor
super(FloatField, self).set_client(record, value,
force_change=force_change)
def get_client(self, record, factor=1):
value = record.value.get(self.name)
if value is not None:
digits = self.digits(record, factor=factor)
if digits:
p = digits[1]
else:
d = value * factor
if not isinstance(d, Decimal):
d = Decimal(repr(d))
p = -int(d.as_tuple().exponent)
return locale.format('%.*f', (p, value * factor), True)
else:
return ''
class NumericField(FloatField):
def convert(self, value):
try:
return locale.atof(value, Decimal)
except decimal.InvalidOperation:
return self._default
def set_client(self, record, value, force_change=False, factor=1):
return super(NumericField, self).set_client(record, value,
force_change=force_change, factor=Decimal(str(factor)))
def get_client(self, record, factor=1):
return super(NumericField, self).get_client(record,
factor=Decimal(str(factor)))
class IntegerField(FloatField):
def convert(self, value):
try:
return locale.atoi(value)
except ValueError:
return self._default
def set_client(self, record, value, force_change=False, factor=1):
return super(IntegerField, self).set_client(record, value,
force_change=force_change, factor=int(factor))
def get_client(self, record, factor=1):
return super(IntegerField, self).get_client(record, factor=int(factor))
class BooleanField(Field):
_default = False
def set_client(self, record, value, force_change=False):
value = bool(value)
super(BooleanField, self).set_client(record, value,
force_change=force_change)
def get(self, record):
return bool(record.value.get(self.name))
def get_client(self, record):
return bool(record.value.get(self.name))
class M2OField(Field):
'''
internal = (id, name)
'''
_default = None
def get_client(self, record):
rec_name = record.value.get(self.name + '.rec_name')
if rec_name is None:
self.set(record, self.get(record))
rec_name = record.value.get(self.name + '.rec_name') or ''
return rec_name
def set_client(self, record, value, force_change=False):
if isinstance(value, (tuple, list)):
value, rec_name = value
else:
if value == self.get(record):
rec_name = record.value.get(self.name + '.rec_name', '')
else:
rec_name = ''
record.value[self.name + '.rec_name'] = rec_name
super(M2OField, self).set_client(record, value,
force_change=force_change)
def set(self, record, value):
rec_name = record.value.get(self.name + '.rec_name') or ''
if not rec_name and value >= 0:
try:
result, = RPCExecute('model', self.attrs['relation'], 'read',
[value], ['rec_name'])
except RPCException:
return
rec_name = result['rec_name'] or ''
record.value[self.name + '.rec_name'] = rec_name
record.value[self.name] = value
def context_get(self, record):
context = super(M2OField, self).context_get(record)
if self.attrs.get('datetime_field'):
context['_datetime'] = record.get_eval(
)[self.attrs.get('datetime_field')]
return context
def validation_domains(self, record, pre_validate=None):
screen_domain, attr_domain = self.domains_get(record, pre_validate)
return screen_domain
def domain_get(self, record):
screen_domain, attr_domain = self.domains_get(record)
return concat(localize_domain(inverse_leaf(screen_domain), self.name),
attr_domain)
def get_on_change_value(self, record):
if record.parent_name == self.name and record.parent:
return record.parent.get_on_change_value(
skip={record.group.child_name})
return super(M2OField, self).get_on_change_value(record)
class O2OField(M2OField):
pass
class O2MField(Field):
'''
internal = Group of the related objects
'''
_default = None
def __init__(self, attrs):
super(O2MField, self).__init__(attrs)
def _group_changed(self, group, record):
if not record.parent:
return
# Store parent as it could be removed by validation
parent = record.parent
parent.modified_fields.setdefault(self.name)
self.sig_changed(parent)
parent.validate(softvalidation=True)
parent.signal('record-changed')
def _group_list_changed(self, group, signal):
if group.model_name == group.parent.model_name:
group.parent.group.signal('group-list-changed', signal)
def _group_cleared(self, group, signal):
if group.model_name == group.parent.model_name:
group.parent.signal('group-cleared')
def _record_modified(self, group, record):
if not record.parent:
return
record.parent.signal('record-modified')
def _set_default_value(self, record, fields=None):
if record.value.get(self.name) is not None:
return
from group import Group
parent_name = self.attrs.get('relation_field', '')
fields = fields or {}
context = record.expr_eval(self.attrs.get('context', {}))
group = Group(self.attrs['relation'], fields,
parent=record,
parent_name=parent_name,
child_name=self.name,
context=context,
parent_datetime_field=self.attrs.get('datetime_field'))
if not fields and record.model_name == self.attrs['relation']:
group.fields = record.group.fields
record.value[self.name] = group
self._connect_value(group)
def _connect_value(self, group):
group.signal_connect(group, 'group-changed', self._group_changed)
group.signal_connect(group, 'group-list-changed',
self._group_list_changed)
group.signal_connect(group, 'group-cleared', self._group_cleared)
group.signal_connect(group, 'record-modified', self._record_modified)
def get_client(self, record):
self._set_default_value(record)
return record.value.get(self.name)
def get(self, record):
if record.value.get(self.name) is None:
return []
record_removed = record.value[self.name].record_removed
record_deleted = record.value[self.name].record_deleted
result = []
parent_name = self.attrs.get('relation_field', '')
to_add = []
to_create = []
to_write = []
for record2 in record.value[self.name]:
if record2 in record_removed or record2 in record_deleted:
continue
if record2.id >= 0:
values = record2.get()
values.pop(parent_name, None)
if record2.modified and values:
to_write.extend(([record2.id], values))
to_add.append(record2.id)
else:
values = record2.get()
values.pop(parent_name, None)
to_create.append(values)
if to_add:
result.append(('add', to_add))
if to_create:
result.append(('create', to_create))
if to_write:
result.append(('write',) + tuple(to_write))
if record_removed:
result.append(('remove', [x.id for x in record_removed]))
if record_deleted:
result.append(('delete', [x.id for x in record_deleted]))
return result
def get_timestamp(self, record):
if record.value.get(self.name) is None:
return {}
result = {}
for record2 in (record.value[self.name]
+ record.value[self.name].record_removed
+ record.value[self.name].record_deleted):
result.update(record2.get_timestamp())
return result
def get_eval(self, record):
if record.value.get(self.name) is None:
return []
record_removed = record.value[self.name].record_removed
record_deleted = record.value[self.name].record_deleted
return [x.id for x in record.value[self.name]
if x not in record_removed and x not in record_deleted]
def get_on_change_value(self, record):
result = []
if record.value.get(self.name) is None:
return []
for record2 in record.value[self.name]:
if not (record2.deleted or record2.removed):
result.append(
record2.get_on_change_value(
skip={self.attrs.get('relation_field', '')}))
return result
def _set_value(self, record, value, default=False):
self._set_default_value(record)
group = record.value[self.name]
if not value or (len(value) and isinstance(value[0], (int, long))):
mode = 'list ids'
else:
mode = 'list values'
if mode == 'list values' and len(value):
context = self.context_get(record)
field_names = set(f for v in value for f in v
if f not in group.fields)
if field_names:
try:
fields = RPCExecute('model', self.attrs['relation'],
'fields_get', list(field_names), context=context)
except RPCException:
return
group.load_fields(fields)
if mode == 'list ids':
for old_record in group:
if old_record.id not in value:
group.remove(old_record, remove=True, signal=False)
group.load(value)
else:
for vals in value:
new_record = record.value[self.name].new(default=False)
if default:
new_record.set_default(vals)
group.add(new_record)
else:
new_record.set(vals)
group.append(new_record)
def set(self, record, value, _default=False):
group = record.value.get(self.name)
fields = {}
if group is not None:
fields = group.fields.copy()
# Unconnect to prevent infinite loop
group.signal_unconnect(group)
group.destroy()
elif record.model_name == self.attrs['relation']:
fields = record.group.fields
if fields:
fields = dict((fname, field.attrs)
for fname, field in fields.iteritems())
record.value[self.name] = None
self._set_default_value(record, fields=fields)
group = record.value[self.name]
group.signal_unconnect(group)
self._set_value(record, value, default=_default)
self._connect_value(group)
def set_client(self, record, value, force_change=False):
# domain inversion could try to set None as value
if value is None:
value = []
# domain inversion could try to set id as value
if isinstance(value, (int, long)):
value = [value]
previous_ids = self.get_eval(record)
self._set_value(record, value)
# The order of the ids is not significant
if set(previous_ids) != set(value):
record.modified_fields.setdefault(self.name)
record.signal('record-modified')
self.sig_changed(record)
record.validate(softvalidation=True)
record.signal('record-changed')
elif force_change:
self.sig_changed(record)
record.validate(softvalidation=True)
record.signal('record-changed')
def set_default(self, record, value):
self.set(record, value, _default=True)
record.modified_fields.setdefault(self.name)
def set_on_change(self, record, value):
record.modified_fields.setdefault(self.name)
self._set_default_value(record)
if isinstance(value, (list, tuple)):
self._set_value(record, value)
return
if value and (value.get('add') or value.get('update')):
context = self.context_get(record)
fields = record.value[self.name].fields
values = chain(value.get('update', []),
(d for _, d in value.get('add', [])))
field_names = set(f for v in values
for f in v if f not in fields and f != 'id')
if field_names:
try:
fields = RPCExecute('model', self.attrs['relation'],
'fields_get', list(field_names), context=context)
except RPCException:
return
else:
fields = {}
to_remove = []
for record2 in record.value[self.name]:
if not record2.id:
to_remove.append(record2)
if value and value.get('remove'):
for record_id in value['remove']:
record2 = record.value[self.name].get(record_id)
if record2 is not None:
to_remove.append(record2)
for record2 in to_remove:
record.value[self.name].remove(record2, signal=False,
force_remove=False)
if value and (value.get('add') or value.get('update', [])):
record.value[self.name].add_fields(fields, signal=False)
for index, vals in value.get('add', []):
new_record = record.value[self.name].new(default=False)
record.value[self.name].add(new_record, index, signal=False)
new_record.set_on_change(vals)
for vals in value.get('update', []):
if 'id' not in vals:
continue
record2 = record.value[self.name].get(vals['id'])
if record2 is not None:
record2.set_on_change(vals)
def validation_domains(self, record, pre_validate=None):
screen_domain, attr_domain = self.domains_get(record, pre_validate)
return screen_domain
def validate(self, record, softvalidation=False, pre_validate=None):
if self.attrs.get('readonly'):
return True
invalid = False
ldomain = localize_domain(domain_inversion(
record.group.clean4inversion(pre_validate or []), self.name,
EvalEnvironment(record)), self.name)
if isinstance(ldomain, bool):
if ldomain:
ldomain = []
else:
ldomain = [('id', '=', None)]
for record2 in record.value.get(self.name, []):
if not record2.loaded and record2.id >= 0 and not pre_validate:
continue
if not record2.validate(softvalidation=softvalidation,
pre_validate=ldomain):
invalid = 'children'
test = super(O2MField, self).validate(record, softvalidation,
pre_validate)
if test and invalid:
self.get_state_attrs(record)['invalid'] = invalid
return False
return test
def state_set(self, record, states=('readonly', 'required', 'invisible')):
self._set_default_value(record)
super(O2MField, self).state_set(record, states=states)
record.value[self.name].readonly = self.get_state_attrs(record).get(
'readonly', False)
def get_removed_ids(self, record):
return [x.id for x in record.value[self.name].record_removed]
def domain_get(self, record):
screen_domain, attr_domain = self.domains_get(record)
return concat(localize_domain(inverse_leaf(screen_domain), self.name),
attr_domain)
class M2MField(O2MField):
def get_on_change_value(self, record):
return self.get_eval(record)
class ReferenceField(Field):
_default = None
def get_client(self, record):
if record.value.get(self.name):
model, _ = record.value[self.name]
name = record.value.get(self.name + '.rec_name') or ''
return model, name
else:
return None
def get(self, record):
if (record.value.get(self.name)
and record.value[self.name][0]
and record.value[self.name][1] >= -1):
return ','.join(map(str, record.value[self.name]))
return None
def set_client(self, record, value, force_change=False):
if value:
if isinstance(value, basestring):
value = value.split(',')
ref_model, ref_id = value
if isinstance(ref_id, (tuple, list)):
ref_id, rec_name = ref_id
else:
if ref_id:
try:
ref_id = int(ref_id)
except ValueError:
pass
if '%s,%s' % (ref_model, ref_id) == self.get(record):
rec_name = record.value.get(self.name + '.rec_name', '')
else:
rec_name = ''
record.value[self.name + '.rec_name'] = rec_name
value = (ref_model, ref_id)
super(ReferenceField, self).set_client(record, value,
force_change=force_change)
def set(self, record, value):
if not value:
record.value[self.name] = self._default
return
if isinstance(value, basestring):
ref_model, ref_id = value.split(',')
if not ref_id:
ref_id = None
else:
try:
ref_id = int(ref_id)
except ValueError:
pass
else:
ref_model, ref_id = value
rec_name = record.value.get(self.name + '.rec_name') or ''
if ref_model and ref_id >= 0:
if not rec_name and ref_id >= 0:
try:
result, = RPCExecute('model', ref_model, 'read', [ref_id],
['rec_name'])
except RPCException:
return
rec_name = result['rec_name']
elif ref_model:
rec_name = ''
else:
rec_name = str(ref_id)
record.value[self.name] = ref_model, ref_id
record.value[self.name + '.rec_name'] = rec_name
def get_on_change_value(self, record):
if record.parent_name == self.name and record.parent:
return record.parent.model_name, record.parent.get_on_change_value(
skip={record.group.child_name})
return super(ReferenceField, self).get_on_change_value(record)
def validation_domains(self, record, pre_validate=None):
screen_domain, attr_domain = self.domains_get(record, pre_validate)
return screen_domain
def domain_get(self, record):
if record.value.get(self.name):
model = record.value[self.name][0]
else:
model = None
screen_domain, attr_domain = self.domains_get(record)
return concat(localize_domain(
filter_leaf(screen_domain, self.name, model),
strip_target=True), attr_domain)
class _FileCache(object):
def __init__(self, path):
self.path = path
class BinaryField(Field):
_default = None
cast = bytearray if bytes == str else bytes
def get(self, record):
result = record.value.get(self.name, self._default)
if isinstance(result, _FileCache):
try:
with open(result.path, 'rb') as fp:
result = self.cast(fp.read())
except IOError:
result = self.get_data(record)
return result
def get_client(self, record):
return self.get(record)
def set_client(self, record, value, force_change=False):
_, filename = tempfile.mkstemp(prefix='tryton_')
with open(filename, 'wb') as fp:
fp.write(value or '')
self.set(record, _FileCache(filename))
record.modified_fields.setdefault(self.name)
record.signal('record-modified')
self.sig_changed(record)
record.validate(softvalidation=True)
record.signal('record-changed')
def get_size(self, record):
result = record.value.get(self.name) or 0
if isinstance(result, _FileCache):
result = os.stat(result.path).st_size
elif isinstance(result, (basestring, bytes, bytearray)):
result = len(result)
return result
def get_data(self, record):
if not isinstance(record.value.get(self.name),
(basestring, bytes, bytearray)):
if record.id < 0:
return ''
context = record.context_get()
try:
values, = RPCExecute('model', record.model_name, 'read',
[record.id], [self.name], context=context)
except RPCException:
return ''
_, filename = tempfile.mkstemp(prefix='tryton_')
with open(filename, 'wb') as fp:
fp.write(values[self.name] or '')
self.set(record, _FileCache(filename))
return self.get(record)
class DictField(Field):
_default = {}
def get(self, record):
return super(DictField, self).get(record) or self._default
def get_client(self, record):
return super(DictField, self).get_client(record) or self._default
def validation_domains(self, record, pre_validate=None):
screen_domain, attr_domain = self.domains_get(record, pre_validate)
return screen_domain
def domain_get(self, record):
screen_domain, attr_domain = self.domains_get(record)
return concat(localize_domain(inverse_leaf(screen_domain)),
attr_domain)
def date_format(self, record):
context = self.context_get(record)
return context.get('date_format', '%x')
def time_format(self, record):
return '%X'
TYPES = {
'char': CharField,
'integer': IntegerField,
'biginteger': IntegerField,
'float': FloatField,
'numeric': NumericField,
'many2one': M2OField,
'many2many': M2MField,
'one2many': O2MField,
'reference': ReferenceField,
'selection': SelectionField,
'boolean': BooleanField,
'datetime': DateTimeField,
'date': DateField,
'time': TimeField,
'timedelta': TimeDeltaField,
'one2one': O2OField,
'binary': BinaryField,
'dict': DictField,
}
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