/usr/lib/python2.7/dist-packages/trytond/model/modelsql.py is in tryton-server 3.0.2-1.
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The COPYRIGHT file at the top level of
#this repository contains the full copyright notices and license terms.
import contextlib
import re
from functools import reduce
from itertools import islice, izip
from sql import Table, Column, Literal, Desc, Asc, Expression, Flavor
from sql.functions import Now, Extract
from sql.conditionals import Coalesce
from sql.operators import Or, And, Operator
from sql.aggregate import Count, Max
from trytond.model import ModelStorage
from trytond.model import fields
from trytond import backend
from trytond.tools import reduce_ids
from trytond.const import OPERATORS, RECORD_CACHE_SIZE
from trytond.transaction import Transaction
from trytond.pool import Pool
from trytond.cache import LRUDict
from trytond.exceptions import ConcurrencyException
_RE_UNIQUE = re.compile('UNIQUE\s*\((.*)\)', re.I)
_RE_CHECK = re.compile('CHECK\s*\((.*)\)', re.I)
class ModelSQL(ModelStorage):
"""
Define a model with storage in database.
"""
_table = None # The name of the table in database
_order = None
_order_name = None # Use to force order field when sorting on Many2One
_history = False
@classmethod
def __setup__(cls):
super(ModelSQL, cls).__setup__()
cls._sql_constraints = []
cls._order = [('id', 'ASC')]
cls._sql_error_messages = {}
if not cls._table:
cls._table = cls.__name__.replace('.', '_')
assert cls._table[-9:] != '__history', \
'Model _table %s cannot end with "__history"' % cls._table
@classmethod
def __table__(cls):
return cls.table_query() or Table(cls._table)
@classmethod
def __table_history__(cls):
if not cls._history:
raise ValueError('No history table')
return Table(cls._table + '__history')
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
super(ModelSQL, cls).__register__(module_name)
if cls.table_query():
return
pool = Pool()
# create/update table in the database
table = TableHandler(Transaction().cursor, cls, module_name)
if cls._history:
history_table = TableHandler(Transaction().cursor, cls,
module_name, history=True)
history_table.index_action('id', action='add')
for field_name, field in cls._fields.iteritems():
if field_name == 'id':
continue
default_fun = None
try:
sql_type = field.sql_type()
except NotImplementedError:
continue
if field_name in cls._defaults:
default_fun = cls._defaults[field_name]
def unpack_wrapper(fun):
def unpack_result(*a):
try:
# XXX ugly hack: some default fct try
# to access the non-existing table
result = fun(*a)
except Exception:
return None
clean_results = cls._clean_defaults(
{field_name: result})
return clean_results[field_name]
return unpack_result
default_fun = unpack_wrapper(default_fun)
if hasattr(field, 'size') and isinstance(field.size, int):
field_size = field.size
else:
field_size = None
table.add_raw_column(field_name, sql_type, field.sql_format,
default_fun, field_size, string=field.string)
if cls._history:
history_table.add_raw_column(field_name, sql_type, None,
string=field.string)
if isinstance(field, (fields.Integer, fields.Float)):
# migration from tryton 2.2
table.db_default(field_name, None)
if isinstance(field, (fields.Boolean)):
table.db_default(field_name, False)
if isinstance(field, fields.Many2One):
if field.model_name in ('res.user', 'res.group'):
ref = field.model_name.replace('.', '_')
else:
ref = pool.get(field.model_name)._table
table.add_fk(field_name, ref, field.ondelete)
table.index_action(
field_name, action=field.select and 'add' or 'remove')
required = field.required
table.not_null_action(
field_name, action=required and 'add' or 'remove')
for field_name, field in cls._fields.iteritems():
if isinstance(field, fields.Many2One) \
and field.model_name == cls.__name__ \
and field.left and field.right:
with Transaction().set_user(0):
cls._rebuild_tree(field_name, None, 0)
for ident, constraint, _ in cls._sql_constraints:
table.add_constraint(ident, constraint)
if cls._history:
cls._update_history_table()
cursor = Transaction().cursor
table = cls.__table__()
history_table = cls.__table_history__()
cursor.execute(*table.select(table.id))
if cursor.fetchone():
cursor.execute(*history_table.select(history_table.id))
if not cursor.fetchone():
columns = [n for n, f in cls._fields.iteritems()
if not hasattr(f, 'set')]
cursor.execute(*history_table.insert(
[Column(history_table, c) for c in columns],
table.select(*(Column(table, c)
for c in columns))))
cursor.execute(*history_table.update(
[history_table.write_date], [None]))
@classmethod
def _update_history_table(cls):
TableHandler = backend.get('TableHandler')
if cls._history:
table = TableHandler(Transaction().cursor, cls)
history_table = TableHandler(Transaction().cursor, cls,
history=True)
for column_name in table._columns:
string = ''
if column_name in cls._fields:
string = cls._fields[column_name].string
history_table.add_raw_column(column_name,
(table._columns[column_name]['typname'],
table._columns[column_name]['typname']),
None, string=string)
@classmethod
def _get_error_messages(cls):
res = super(ModelSQL, cls)._get_error_messages()
res += cls._sql_error_messages.values()
for _, _, error in cls._sql_constraints:
res.append(error)
return res
@staticmethod
def table_query():
'''
Return None if the model is a real table in the database
or return a tuple with the SQL query and the arguments.
'''
return None
@classmethod
def __raise_integrity_error(cls, exception, values, field_names=None):
pool = Pool()
if field_names is None:
field_names = cls._fields.keys()
for field_name in field_names:
if field_name not in cls._fields:
continue
field = cls._fields[field_name]
# Check required fields
if (field.required
and not hasattr(field, 'set')
and field_name not in ('create_uid', 'create_date')):
if values.get(field_name) is None:
cls.raise_user_error('required_field',
error_args=cls._get_error_args(field_name))
if isinstance(field, fields.Many2One) and values.get(field_name):
Model = pool.get(field.model_name)
create_records = Transaction().create_records.get(
field.model_name, set())
delete_records = Transaction().delete_records.get(
field.model_name, set())
target_records = Model.search([
('id', '=', values[field_name]),
], order=[])
if not ((target_records
or (values[field_name] in create_records))
and (values[field_name] not in delete_records)):
cls.raise_user_error('foreign_model_missing',
error_args=cls._get_error_args(field_name))
for name, _, error in cls._sql_constraints:
if name in exception[0]:
cls.raise_user_error(error)
for name, error in cls._sql_error_messages.iteritems():
if name in exception[0]:
cls.raise_user_error(error)
@classmethod
def __insert_history(cls, ids, deleted=False):
transaction = Transaction()
cursor = transaction.cursor
in_max = cursor.IN_MAX
if not cls._history:
return
user = transaction.user
table = cls.__table__()
history = cls.__table_history__()
columns = []
hcolumns = []
if not deleted:
fields = cls._fields
else:
fields = {
'id': cls.id,
'write_uid': cls.write_uid,
'write_date': cls.write_date,
}
for fname, field in sorted(fields.iteritems()):
if hasattr(field, 'set'):
continue
columns.append(Column(table, fname))
hcolumns.append(Column(history, fname))
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
if not deleted:
where = reduce_ids(table.id, sub_ids)
cursor.execute(*history.insert(hcolumns,
table.select(*columns, where=where)))
else:
cursor.execute(*history.insert(hcolumns,
[[id_, Now(), user] for id_ in sub_ids]))
@classmethod
def __check_timestamp(cls, ids):
transaction = Transaction()
cursor = transaction.cursor
in_max = cursor.IN_MAX
table = cls.__table__()
if not transaction.timestamp:
return
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
where = Or()
for id_ in sub_ids:
try:
timestamp = transaction.timestamp.pop(
'%s,%s' % (cls.__name__, id_))
except KeyError:
continue
sql_type = fields.Numeric('timestamp').sql_type().base
where.append((table.id == id_)
& (Extract('EPOCH',
Coalesce(table.write_date, table.create_date)
).cast(sql_type) > timestamp))
if where:
cursor.execute(*table.select(table.id, where=where))
if cursor.fetchone():
raise ConcurrencyException(
'Records were modified in the meanwhile')
@classmethod
def create(cls, vlist):
DatabaseIntegrityError = backend.get('DatabaseIntegrityError')
transaction = Transaction()
cursor = transaction.cursor
pool = Pool()
Translation = pool.get('ir.translation')
in_max = cursor.IN_MAX
super(ModelSQL, cls).create(vlist)
if cls.table_query():
return False
table = cls.__table__()
modified_fields = set()
new_ids = []
vlist = [v.copy() for v in vlist]
for values in vlist:
# Clean values
for key in ('create_uid', 'create_date',
'write_uid', 'write_date', 'id'):
if key in values:
del values[key]
modified_fields |= set(values.keys())
# Get default values
default = []
for f in cls._fields.keys():
if (f not in values
and f not in ('create_uid', 'create_date',
'write_uid', 'write_date', 'id')):
default.append(f)
if default:
defaults = cls.default_get(default, with_rec_name=False)
values.update(cls._clean_defaults(defaults))
insert_columns = [table.create_uid, table.create_date]
insert_values = [transaction.user, Now()]
# Insert record
for fname, value in values.iteritems():
field = cls._fields[fname]
if not hasattr(field, 'set'):
insert_columns.append(Column(table, fname))
insert_values.append(field.sql_format(value))
try:
if cursor.has_returning():
cursor.execute(*table.insert(insert_columns,
[insert_values], [table.id]))
id_new, = cursor.fetchone()
else:
id_new = cursor.nextid(cls._table)
if id_new:
insert_columns.append(table.id)
insert_values.append(id_new)
cursor.execute(*table.insert(insert_columns,
[insert_values]))
else:
cursor.execute(*table.insert(insert_columns,
[insert_values]))
id_new = cursor.lastid()
new_ids.append(id_new)
except DatabaseIntegrityError, exception:
with contextlib.nested(Transaction().new_cursor(),
Transaction().set_user(0)):
cls.__raise_integrity_error(exception, values)
raise
domain = pool.get('ir.rule').domain_get(cls.__name__,
mode='create')
if domain:
for i in range(0, len(new_ids), in_max):
sub_ids = new_ids[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
cursor.execute(*table.select(table.id,
where=red_sql & table.id.in_(domain)))
if len(cursor.fetchall()) != len(sub_ids):
cls.raise_user_error('access_error', cls.__name__)
transaction.create_records.setdefault(cls.__name__,
set()).update(new_ids)
translation_values = {}
for values, new_id in izip(vlist, new_ids):
for fname, value in values.iteritems():
field = cls._fields[fname]
if (getattr(field, 'translate', False)
and not hasattr(field, 'set')):
translation_values.setdefault(
'%s,%s' % (cls.__name__, fname), {})[new_id] = value
if hasattr(field, 'set'):
field.set([new_id], cls, fname, value)
if translation_values:
for name, translations in translation_values.iteritems():
Translation.set_ids(name, 'model', Transaction().language,
translations.keys(), translations.values())
cls.__insert_history(new_ids)
records = cls.browse(new_ids)
cls._validate(records)
field_names = cls._fields.keys()
cls._update_mptt(field_names, [new_ids] * len(field_names))
cls.trigger_create(records)
return records
@classmethod
def read(cls, ids, fields_names=None):
pool = Pool()
Rule = pool.get('ir.rule')
Translation = pool.get('ir.translation')
super(ModelSQL, cls).read(ids, fields_names=fields_names)
cursor = Transaction().cursor
if not fields_names:
fields_names = cls._fields.keys()
if not ids:
return []
# construct a clause for the rules :
domain = Rule.domain_get(cls.__name__, mode='read')
fields_related = {}
datetime_fields = []
for field_name in fields_names:
if field_name == '_timestamp':
continue
if '.' in field_name:
field, field_related = field_name.split('.', 1)
fields_related.setdefault(field, [])
fields_related[field].append(field_related)
else:
field = cls._fields[field_name]
if hasattr(field, 'datetime_field') and field.datetime_field:
datetime_fields.append(field.datetime_field)
result = []
table = cls.__table__()
table_query = cls.table_query()
in_max = cursor.IN_MAX
history_order = None
history_clause = None
history_limit = None
if (cls._history
and Transaction().context.get('_datetime')
and not table_query):
in_max = 1
table = cls.__table_history__()
column = Coalesce(table.write_date, table.create_date)
history_clause = (column <= Transaction().context['_datetime'])
history_order = column.desc
history_limit = 1
columns = []
for f in fields_names + fields_related.keys() + datetime_fields:
if (f in cls._fields and not hasattr(cls._fields[f], 'set')):
columns.append(Column(table, f).as_(f))
elif f == '_timestamp' and not table_query:
sql_type = fields.Char('timestamp').sql_type().base
columns.append(Extract('EPOCH',
Coalesce(table.write_date, table.create_date)
).cast(sql_type).as_('_timestamp'))
if len(columns):
if 'id' not in fields_names:
columns.append(table.id.as_('id'))
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
where = red_sql
if history_clause:
where &= history_clause
if domain:
where &= table.id.in_(domain)
cursor.execute(*table.select(*columns, where=where,
order_by=history_order, limit=history_limit))
dictfetchall = cursor.dictfetchall()
if not len(dictfetchall) == len({}.fromkeys(sub_ids)):
if domain:
where = red_sql
if history_clause:
where &= history_clause
where &= table.id.in_(domain)
cursor.execute(*table.select(table.id, where=where,
order_by=history_order, limit=history_limit))
rowcount = cursor.rowcount
if rowcount == -1 or rowcount is None:
rowcount = len(cursor.fetchall())
if rowcount == len({}.fromkeys(sub_ids)):
cls.raise_user_error('access_error', cls.__name__)
cls.raise_user_error('read_error', cls.__name__)
result.extend(dictfetchall)
else:
result = [{'id': x} for x in ids]
for column in columns:
field = column.output_name
if field == '_timestamp':
continue
if (getattr(cls._fields[field], 'translate', False)
and not hasattr(field, 'set')):
translations = Translation.get_ids(cls.__name__ + ',' + field,
'model', Transaction().language, ids)
for row in result:
row[field] = translations.get(row['id']) or row[field]
# all fields for which there is a get attribute
getter_fields = [f for f in
fields_names + fields_related.keys() + datetime_fields
if f in cls._fields and hasattr(cls._fields[f], 'get')]
func_fields = {}
for fname in getter_fields:
field = cls._fields[fname]
if isinstance(field, fields.Function):
key = (field.getter, getattr(field, 'datetime_field', None))
func_fields.setdefault(key, [])
func_fields[key].append(fname)
elif getattr(field, 'datetime_field', None):
for row in result:
with Transaction().set_context(
_datetime=row[field.datetime_field]):
date_result = field.get([row['id']], cls, fname,
values=[row])
row[field] = date_result[row['id']]
else:
# get the value of that field for all records/ids
getter_result = field.get(ids, cls, fname, values=result)
for row in result:
row[fname] = getter_result[row['id']]
for key in func_fields:
field_list = func_fields[key]
fname = field_list[0]
field = cls._fields[fname]
_, datetime_field = key
if datetime_field:
for row in result:
with Transaction().set_context(
_datetime=row[datetime_field]):
date_results = field.get([row['id']], cls, field_list,
values=[row])
for fname, date_result in date_results.iteritems():
row[fname] = date_result[row['id']]
else:
getter_results = field.get(ids, cls, field_list, values=result)
for fname, getter_result in getter_results.iteritems():
for row in result:
row[fname] = getter_result[row['id']]
to_del = set()
fields_related2values = {}
for fname in fields_related.keys() + datetime_fields:
if fname not in fields_names:
to_del.add(fname)
if fname not in cls._fields:
continue
if fname not in fields_related:
continue
fields_related2values.setdefault(fname, {})
field = cls._fields[fname]
if field._type in ('many2one', 'one2one'):
if hasattr(field, 'model_name'):
Target = pool.get(field.model_name)
else:
Target = field.get_target()
if getattr(field, 'datetime_field', None):
for row in result:
if row[fname] is None:
continue
with Transaction().set_context(
_datetime=row[field.datetime_field]):
date_target, = Target.read([row[fname]],
fields_related[fname])
target_id = date_target.pop('id')
fields_related2values[fname].setdefault(target_id, {})
fields_related2values[
fname][target_id][row['id']] = date_target
else:
for target in Target.read(
[r[fname] for r in result if r[fname]],
fields_related[fname]):
target_id = target.pop('id')
fields_related2values[fname].setdefault(target_id, {})
for row in result:
fields_related2values[
fname][target_id][row['id']] = target
elif field._type == 'reference':
for row in result:
if not row[fname]:
continue
model_name, record_id = row[fname].split(',', 1)
if not model_name:
continue
record_id = int(record_id)
if record_id < 0:
continue
Target = pool.get(model_name)
target, = Target.read([record_id], fields_related[fname])
del target['id']
fields_related2values[fname][row[fname]] = target
if to_del or fields_related or datetime_fields:
for row in result:
for fname in fields_related:
if fname not in cls._fields:
continue
field = cls._fields[fname]
for related in fields_related[fname]:
related_name = '%s.%s' % (fname, related)
value = None
if row[fname]:
if field._type in ('many2one', 'one2one'):
value = fields_related2values[fname][
row[fname]][row['id']][related]
elif field._type == 'reference':
model_name, record_id = row[fname
].split(',', 1)
if model_name:
record_id = int(record_id)
if record_id >= 0:
value = fields_related2values[fname][
row[fname]][related]
row[related_name] = value
for field in to_del:
del row[field]
return result
@classmethod
def write(cls, records, values):
DatabaseIntegrityError = backend.get('DatabaseIntegrityError')
transaction = Transaction()
cursor = transaction.cursor
pool = Pool()
Translation = pool.get('ir.translation')
Config = pool.get('ir.configuration')
ids = map(int, records)
in_max = cursor.IN_MAX
# Call before cursor cache cleaning
trigger_eligibles = cls.trigger_write_get_eligibles(records)
super(ModelSQL, cls).write(records, values)
if not records:
return
if cls.table_query():
return
table = cls.__table__()
values = values.copy()
cls.__check_timestamp(ids)
# Clean values
for key in ('create_uid', 'create_date',
'write_uid', 'write_date', 'id'):
if key in values:
del values[key]
columns = [table.write_uid, table.write_date]
update_values = [transaction.user, Now()]
store_translation = Transaction().language == Config.get_language()
for fname, value in values.iteritems():
field = cls._fields[fname]
if not hasattr(field, 'set'):
if not getattr(field, 'translate', False) or store_translation:
columns.append(Column(table, fname))
update_values.append(field.sql_format(value))
domain = pool.get('ir.rule').domain_get(cls.__name__, mode='write')
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
where = red_sql
if domain:
where &= table.id.in_(domain)
cursor.execute(*table.select(table.id, where=where))
rowcount = cursor.rowcount
if rowcount == -1 or rowcount is None:
rowcount = len(cursor.fetchall())
if not rowcount == len({}.fromkeys(sub_ids)):
if domain:
cursor.execute(*table.select(table.id, where=red_sql))
rowcount = cursor.rowcount
if rowcount == -1 or rowcount is None:
rowcount = len(cursor.fetchall())
if rowcount == len({}.fromkeys(sub_ids)):
cls.raise_user_error('access_error', cls.__name__)
cls.raise_user_error('write_error', cls.__name__)
try:
cursor.execute(*table.update(columns, update_values,
where=red_sql))
except DatabaseIntegrityError, exception:
with contextlib.nested(Transaction().new_cursor(),
Transaction().set_user(0)):
cls.__raise_integrity_error(exception, values,
values.keys())
raise
for fname, value in values.iteritems():
field = cls._fields[fname]
if (getattr(field, 'translate', False)
and not hasattr(field, 'set')):
Translation.set_ids(
'%s,%s' % (cls.__name__, fname), 'model',
transaction.language, ids, [value] * len(ids))
if hasattr(field, 'set'):
field.set(ids, cls, fname, value)
cls.__insert_history(ids)
cls._validate(records)
field_names = cls._fields.keys()
cls._update_mptt(field_names, [ids] * len(field_names), values)
cls.trigger_write(trigger_eligibles)
@classmethod
def delete(cls, records):
DatabaseIntegrityError = backend.get('DatabaseIntegrityError')
transaction = Transaction()
cursor = transaction.cursor
pool = Pool()
Translation = pool.get('ir.translation')
ids = map(int, records)
in_max = cursor.IN_MAX
if not ids:
return
if cls.table_query():
return
table = cls.__table__()
if transaction.delete and transaction.delete.get(cls.__name__):
ids = ids[:]
for del_id in transaction.delete[cls.__name__]:
for i in range(ids.count(del_id)):
ids.remove(del_id)
cls.__check_timestamp(ids)
tree_ids = {}
for fname, field in cls._fields.iteritems():
if (isinstance(field, fields.Many2One)
and field.model_name == cls.__name__
and field.left and field.right):
tree_ids[fname] = []
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
where = reduce_ids(Column(table, fname), sub_ids)
cursor.execute(*table.select(table.id, where=where))
tree_ids[fname] += [x[0] for x in cursor.fetchall()]
foreign_keys_tocheck = []
foreign_keys_toupdate = []
foreign_keys_todelete = []
for _, model in pool.iterobject():
if hasattr(model, 'table_query') and model.table_query():
continue
if not issubclass(model, ModelStorage):
continue
for field_name, field in model._fields.iteritems():
if (isinstance(field, fields.Many2One)
and field.model_name == cls.__name__):
if field.ondelete == 'CASCADE':
foreign_keys_todelete.append((model, field_name))
elif field.ondelete == 'SET NULL':
if field.required:
foreign_keys_tocheck.append((model, field_name))
else:
foreign_keys_toupdate.append((model, field_name))
else:
foreign_keys_tocheck.append((model, field_name))
transaction.delete.setdefault(cls.__name__, set()).update(ids)
domain = pool.get('ir.rule').domain_get(cls.__name__, mode='delete')
if domain:
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
cursor.execute(*table.select(table.id,
where=red_sql & table.id.in_(domain)))
rowcount = cursor.rowcount
if rowcount == -1 or rowcount is None:
rowcount = len(cursor.fetchall())
if not rowcount == len({}.fromkeys(sub_ids)):
cls.raise_user_error('access_error', cls._get_name())
cls.trigger_delete(records)
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
sub_records = records[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
transaction.delete_records.setdefault(cls.__name__,
set()).update(sub_ids)
for Model, field_name in foreign_keys_toupdate:
if (not hasattr(Model, 'search')
or not hasattr(Model, 'write')):
continue
foreign_table = Model.__table__()
foreign_red_sql = reduce_ids(
Column(foreign_table, field_name), sub_ids)
cursor.execute(*foreign_table.select(foreign_table.id,
where=foreign_red_sql))
models = Model.browse([x[0] for x in cursor.fetchall()])
if models:
Model.write(models, {
field_name: None,
})
for Model, field_name in foreign_keys_todelete:
if (not hasattr(Model, 'search')
or not hasattr(Model, 'delete')):
continue
foreign_table = Model.__table__()
foreign_red_sql = reduce_ids(
Column(foreign_table, field_name), sub_ids)
cursor.execute(*foreign_table.select(foreign_table.id,
where=foreign_red_sql))
models = Model.browse([x[0] for x in cursor.fetchall()])
if models:
Model.delete(models)
for Model, field_name in foreign_keys_tocheck:
with Transaction().set_user(0):
if Model.search([
(field_name, 'in', sub_ids),
], order=[]):
error_args = []
error_args.append(cls._get_error_args('id')[1])
error_args.extend(list(
Model._get_error_args(field_name)))
cls.raise_user_error('foreign_model_exist',
error_args=tuple(error_args))
super(ModelSQL, cls).delete(sub_records)
try:
cursor.execute(*table.delete(where=red_sql))
except DatabaseIntegrityError, exception:
with Transaction().new_cursor():
cls.__raise_integrity_error(exception, [])
raise
Translation.delete_ids(cls.__name__, 'model', ids)
cls.__insert_history(ids, deleted=True)
cls._update_mptt(tree_ids.keys(), tree_ids.values())
@classmethod
def search(cls, domain, offset=0, limit=None, order=None, count=False,
query=False):
pool = Pool()
Rule = pool.get('ir.rule')
transaction = Transaction()
cursor = transaction.cursor
in_max = cursor.IN_MAX
# Get domain clauses
tables, expression = cls.search_domain(domain)
# Get order by
order_by = []
order_types = {
'DESC': Desc,
'ASC': Asc,
}
if order is None or order is False:
order = cls._order
for fname, otype in order:
field = cls._fields[fname]
Order = order_types[otype.upper()]
forder = field.convert_order(fname, tables, cls)
order_by.extend((Order(o) for o in forder))
if type(limit) not in (float, int, long, type(None)):
raise Exception('Error', 'Wrong limit type (%s)!' % type(limit))
if type(offset) not in (float, int, long, type(None)):
raise Exception('Error', 'Wrong offset type (%s)!' % type(offset))
main_table, _ = tables[None]
def convert_from(table, tables):
right, condition = tables[None]
if table:
table = table.join(right, 'LEFT', condition)
else:
table = right
for k, sub_tables in tables.iteritems():
if k is None:
continue
table = convert_from(table, sub_tables)
return table
# Don't nested joins as SQLite doesn't support
table = convert_from(None, tables)
# construct a clause for the rules :
domain = Rule.domain_get(cls.__name__, mode='read')
if domain:
expression &= main_table.id.in_(domain)
if count:
cursor.execute(*table.select(Count(Literal(1)),
where=expression, limit=limit, offset=offset))
return cursor.fetchone()[0]
# execute the "main" query to fetch the ids we were searching for
columns = [main_table.id.as_('id')]
if (cls._history and transaction.context.get('_datetime')
and not query):
columns.append(Coalesce(
main_table.write_date,
main_table.create_date).as_('_datetime'))
if not query:
columns += [Column(main_table, name).as_(name)
for name, field in cls._fields.iteritems()
if not hasattr(field, 'get')
and name != 'id'
and not getattr(field, 'translate', False)
and field.loading == 'eager']
if not cls.table_query():
sql_type = fields.Char('timestamp').sql_type().base
columns += [Extract('EPOCH',
Coalesce(main_table.write_date, main_table.create_date)
).cast(sql_type).as_('_timestamp')]
select = table.select(*columns,
where=expression, order_by=order_by, limit=limit, offset=offset)
if query:
return select
cursor.execute(*select)
rows = cursor.dictfetchmany(cursor.IN_MAX)
cache = cursor.get_cache(transaction.context)
if cls.__name__ not in cache:
cache[cls.__name__] = LRUDict(RECORD_CACHE_SIZE)
delete_records = transaction.delete_records.setdefault(cls.__name__,
set())
keys = None
for data in islice(rows, 0, cache.size_limit):
if data['id'] in delete_records:
continue
if keys is None:
keys = data.keys()
for k in keys[:]:
if k in ('_timestamp', '_datetime'):
keys.remove(k)
continue
field = cls._fields[k]
if not getattr(field, 'datetime_field', None):
keys.remove(k)
continue
for k in keys:
del data[k]
cache[cls.__name__].setdefault(data['id'], {}).update(data)
if len(rows) >= cursor.IN_MAX:
if (cls._history
and Transaction().context.get('_datetime')
and not query):
columns = columns[:2]
else:
columns = columns[:1]
cursor.execute(*table.select(*columns,
where=expression, order_by=order_by,
limit=limit, offset=offset))
rows = cursor.dictfetchall()
if cls._history and transaction.context.get('_datetime'):
ids = []
ids_date = {}
for data in rows:
if data['id'] in ids_date:
if data['_datetime'] <= ids_date[data['id']]:
continue
if data['id'] in ids:
ids.remove(data['id'])
ids.append(data['id'])
ids_date[data['id']] = data['_datetime']
to_delete = set()
history = cls.__table_history__()
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
where = reduce_ids(history.id, sub_ids)
cursor.execute(*history.select(history.id, history.write_date,
where=where
& (history.write_date != None)
& (history.create_date == None)
& (history.write_date
<= transaction.context['_datetime'])))
for deleted_id, delete_date in cursor.fetchall():
if ids_date[deleted_id] < delete_date:
to_delete.add(deleted_id)
return cls.browse(filter(lambda x: x not in to_delete, ids))
return cls.browse([x['id'] for x in rows])
@classmethod
def search_domain(cls, domain, active_test=True):
'''
Return SQL tables and expression
Set active_test to add it.
'''
transaction = Transaction()
domain = cls._search_domain_active(domain, active_test=active_test)
tables = {
None: (cls.__table__(), None)
}
if cls._history and transaction.context.get('_datetime'):
tables[None] = (cls.__table_history__(), None)
def is_leaf(expression):
return (isinstance(expression, (list, tuple))
and len(expression) > 2
and isinstance(expression[1], basestring)
and expression[1] in OPERATORS) # TODO remove OPERATORS test
def convert(domain):
if is_leaf(domain):
fname = domain[0].split('.', 1)[0]
field = cls._fields[fname]
expression = field.convert_domain(domain, tables, cls)
if not isinstance(expression, (Operator, Expression)):
return convert(expression)
return expression
elif not domain or list(domain) in (['OR'], ['AND']):
return Literal(True)
elif domain[0] == 'OR':
return Or((convert(d) for d in domain[1:]))
else:
return And((convert(d) for d in (
domain[1:] if domain[0] == 'AND' else domain)))
expression = convert(domain)
if cls._history and transaction.context.get('_datetime'):
table, _ = tables[None]
expression &= (Coalesce(table.write_date, table.create_date)
<= transaction.context['_datetime'])
return tables, expression
@classmethod
def _update_mptt(cls, field_names, list_ids, values=None):
cursor = Transaction().cursor
count = None
for field_name, ids in zip(field_names, list_ids):
field = cls._fields[field_name]
if (isinstance(field, fields.Many2One)
and field.model_name == cls.__name__
and field.left and field.right):
if (values is not None
and (field.left in values or field.right in values)):
raise Exception('ValidateError',
'You can not update fields: "%s", "%s"' %
(field.left, field.right))
if count is None:
cursor.execute(*cls.__table__().select(Count(Literal(1))))
count, = cursor.fetchone()
if len(ids) < count / 4:
for id_ in ids:
cls._update_tree(id_, field_name,
field.left, field.right)
else:
with Transaction().set_user(0):
cls._rebuild_tree(field_name, None, 0)
@classmethod
def _rebuild_tree(cls, parent, parent_id, left):
'''
Rebuild left, right value for the tree.
'''
cursor = Transaction().cursor
table = cls.__table__()
right = left + 1
childs = cls.search([
(parent, '=', parent_id),
], order=[])
for child in childs:
right = cls._rebuild_tree(parent, child.id, right)
field = cls._fields[parent]
if parent_id:
cursor.execute(*table.update(
[Column(table, field.left), Column(table, field.right)],
[left, right],
where=table.id == parent_id))
return right + 1
@classmethod
def _update_tree(cls, record_id, field_name, left, right):
'''
Update left, right values for the tree.
Remarks:
- the value (right - left - 1) / 2 will not give
the number of children node
'''
cursor = Transaction().cursor
table = cls.__table__()
left = Column(table, left)
right = Column(table, right)
field = Column(table, field_name)
cursor.execute(*table.select(left, right, field,
where=table.id == record_id))
fetchone = cursor.fetchone()
if not fetchone:
return
old_left, old_right, parent_id = fetchone
if old_left == old_right == 0:
cursor.execute(*table.select(Max(right),
where=field == None))
old_left, = cursor.fetchone()
old_left += 1
old_right = old_left + 1
cursor.execute(*table.update([left, right],
[old_left, old_right],
where=table.id == record_id))
size = old_right - old_left + 1
parent_right = 1
if parent_id:
cursor.execute(*table.select(right, where=table.id == parent_id))
parent_right = cursor.fetchone()[0]
else:
cursor.execute(*table.select(Max(right), where=field == None))
fetchone = cursor.fetchone()
if fetchone:
parent_right = fetchone[0] + 1
cursor.execute(*table.update([left], [left + size],
where=left >= parent_right))
cursor.execute(*table.update([right], [right + size],
where=right >= parent_right))
if old_left < parent_right:
left_delta = parent_right - old_left
right_delta = parent_right - old_left
left_cond = old_left
right_cond = old_right
else:
left_delta = parent_right - old_left - size
right_delta = parent_right - old_left - size
left_cond = old_left + size
right_cond = old_right + size
cursor.execute(*table.update([left, right],
[left + left_delta, right + right_delta],
where=(left >= left_cond) & (right <= right_cond)))
@classmethod
def validate(cls, records):
super(ModelSQL, cls).validate(records)
cursor = Transaction().cursor
if cursor.has_constraint():
return
# Works only for a single transaction
ids = map(int, records)
table = cls.__table__()
param = Flavor.get().param
for _, sql, error in cls._sql_constraints:
match = _RE_UNIQUE.match(sql)
if match:
sql = match.group(1)
columns = sql.split(',')
sql_clause = ' AND '.join('%s = %s'
% (i, param) for i in columns)
sql_clause = '(id != ' + param + ' AND ' + sql_clause + ')'
in_max = cursor.IN_MAX / (len(columns) + 1)
for i in range(0, len(ids), in_max):
sub_ids = ids[i:i + in_max]
red_sql = reduce_ids(table.id, sub_ids)
cursor.execute('SELECT id,' + sql + ' '
'FROM "' + cls._table + '" '
'WHERE ' + str(red_sql), red_sql.params)
fetchall = cursor.fetchall()
cursor.execute('SELECT id '
'FROM "' + cls._table + '" '
'WHERE ' +
' OR '.join((sql_clause,) * len(fetchall)),
reduce(lambda x, y: x + list(y), fetchall, []))
if cursor.fetchone():
cls.raise_user_error(error)
continue
match = _RE_CHECK.match(sql)
if match:
sql = match.group(1)
for i in range(0, len(ids), cursor.IN_MAX):
sub_ids = ids[i:i + cursor.IN_MAX]
red_sql = reduce_ids(table.id, sub_ids)
cursor.execute('SELECT id '
'FROM "' + cls._table + '" '
'WHERE NOT (' + sql + ') '
'AND ' + str(red_sql), red_sql.params)
if cursor.fetchone():
cls.raise_user_error(error)
continue
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