/usr/lib/python2.7/dist-packages/trytond/ir/model.py is in tryton-server 3.0.2-1.
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 datetime
import re
import heapq
from sql.aggregate import Max
from sql.conditionals import Case
from collections import defaultdict
from ..model import ModelView, ModelSQL, fields
from ..report import Report
from ..wizard import Wizard, StateView, StateAction, Button
from ..transaction import Transaction
from ..cache import Cache
from ..pool import Pool
from ..pyson import Bool, Eval
from ..rpc import RPC
from .. import backend
try:
from ..tools.StringMatcher import StringMatcher
except ImportError:
from difflib import SequenceMatcher as StringMatcher
__all__ = [
'Model', 'ModelField', 'ModelAccess', 'ModelFieldAccess', 'ModelButton',
'ModelData', 'PrintModelGraphStart', 'PrintModelGraph', 'ModelGraph',
]
IDENTIFIER = re.compile(r'^[a-zA-z_][a-zA-Z0-9_]*$')
class Model(ModelSQL, ModelView):
"Model"
__name__ = 'ir.model'
_order_name = 'model'
name = fields.Char('Model Description', translate=True, loading='lazy',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
model = fields.Char('Model Name', required=True,
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
info = fields.Text('Information',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
module = fields.Char('Module',
help="Module in which this model is defined", readonly=True)
global_search_p = fields.Boolean('Global Search')
fields = fields.One2Many('ir.model.field', 'model', 'Fields',
required=True)
@classmethod
def __setup__(cls):
super(Model, cls).__setup__()
cls._sql_constraints += [
('model_uniq', 'UNIQUE(model)',
'The model must be unique!'),
]
cls._error_messages.update({
'invalid_module': ('Module name "%s" is not a valid python '
'identifier.'),
})
cls._order.insert(0, ('model', 'ASC'))
cls.__rpc__.update({
'list_models': RPC(),
'global_search': RPC(),
})
@classmethod
def register(cls, model, module_name):
pool = Pool()
Property = pool.get('ir.property')
cursor = Transaction().cursor
ir_model = cls.__table__()
cursor.execute(*ir_model.select(ir_model.id,
where=ir_model.model == model.__name__))
model_id = None
if cursor.rowcount == -1 or cursor.rowcount is None:
data = cursor.fetchone()
if data:
model_id, = data
elif cursor.rowcount != 0:
model_id, = cursor.fetchone()
if not model_id:
cursor.execute(*ir_model.insert(
[ir_model.model, ir_model.name, ir_model.info,
ir_model.module],
[[model.__name__, model._get_name(), model.__doc__,
module_name]]))
Property._models_get_cache.clear()
cursor.execute(*ir_model.select(ir_model.id,
where=ir_model.model == model.__name__))
(model_id,) = cursor.fetchone()
elif model.__doc__:
cursor.execute(*ir_model.update(
[ir_model.name, ir_model.info],
[model._get_name(), model.__doc__],
where=ir_model.id == model_id))
return model_id
@classmethod
def validate(cls, models):
super(Model, cls).validate(models)
cls.check_module(models)
@classmethod
def check_module(cls, models):
'''
Check module
'''
for model in models:
if model.module and not IDENTIFIER.match(model.module):
cls.raise_user_error('invalid_module', (model.rec_name,))
@classmethod
def list_models(cls):
'Return a list of all models names'
with Transaction().set_user(0):
models = cls.search([], order=[
('module', 'ASC'), # Optimization assumption
('model', 'ASC'),
('id', 'ASC'),
])
return [m.model for m in models]
@classmethod
def create(cls, vlist):
pool = Pool()
Property = pool.get('ir.property')
res = super(Model, cls).create(vlist)
# Restart the cache of models_get
Property._models_get_cache.clear()
return res
@classmethod
def write(cls, models, vals):
pool = Pool()
Property = pool.get('ir.property')
super(Model, cls).write(models, vals)
# Restart the cache of models_get
Property._models_get_cache.clear()
@classmethod
def delete(cls, models):
pool = Pool()
Property = pool.get('ir.property')
super(Model, cls).delete(models)
# Restart the cache of models_get
Property._models_get_cache.clear()
@classmethod
def global_search(cls, text, limit, menu='ir.ui.menu'):
"""
Search on models for text including menu
Returns a list of tuple (ratio, model, model_name, id, rec_name, icon)
The size of the list is limited to limit
"""
pool = Pool()
ModelAccess = pool.get('ir.model.access')
if not limit > 0:
raise ValueError('limit must be > 0: %r' % (limit,))
models = cls.search(['OR',
('global_search_p', '=', True),
('model', '=', menu),
])
access = ModelAccess.get_access([m.model for m in models])
s = StringMatcher()
if isinstance(text, str):
text = text.decode('utf-8')
s.set_seq2(text)
def generate():
for model in models:
if not access[model.model]['read']:
continue
Model = pool.get(model.model)
if not hasattr(Model, 'search_global'):
continue
for id_, rec_name, icon in Model.search_global(text):
if isinstance(rec_name, str):
rec_name = rec_name.decode('utf-8')
s.set_seq1(rec_name)
yield (s.ratio(), model.model, model.rec_name,
id_, rec_name, icon)
return heapq.nlargest(int(limit), generate())
class ModelField(ModelSQL, ModelView):
"Model field"
__name__ = 'ir.model.field'
name = fields.Char('Name', required=True,
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
relation = fields.Char('Model Relation',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
model = fields.Many2One('ir.model', 'Model', required=True,
select=True, ondelete='CASCADE',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
field_description = fields.Char('Field Description', translate=True,
loading='lazy',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
ttype = fields.Char('Field Type',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
groups = fields.Many2Many('ir.model.field-res.group', 'field',
'group', 'Groups')
help = fields.Text('Help', translate=True, loading='lazy',
states={
'readonly': Bool(Eval('module')),
},
depends=['module'])
module = fields.Char('Module',
help="Module in which this field is defined")
@classmethod
def __setup__(cls):
super(ModelField, cls).__setup__()
cls._sql_constraints += [
('name_model_uniq', 'UNIQUE(name, model)',
'The field name in model must be unique!'),
]
cls._error_messages.update({
'invalid_name': ('Model Field name "%s" is not a valid python '
'identifier.'),
})
cls._order.insert(0, ('name', 'ASC'))
@classmethod
def register(cls, model, module_name, model_id):
pool = Pool()
Model = pool.get('ir.model')
cursor = Transaction().cursor
ir_model_field = cls.__table__()
ir_model = Model.__table__()
cursor.execute(*ir_model_field.join(ir_model,
condition=ir_model_field.model == ir_model.id
).select(ir_model_field.id.as_('id'),
ir_model_field.name.as_('name'),
ir_model_field.field_description.as_('field_description'),
ir_model_field.ttype.as_('ttype'),
ir_model_field.relation.as_('relation'),
ir_model_field.module.as_('module'),
ir_model_field.help.as_('help'),
where=ir_model.model == model.__name__))
model_fields = dict((f['name'], f) for f in cursor.dictfetchall())
for field_name, field in model._fields.iteritems():
if hasattr(field, 'model_name'):
relation = field.model_name
elif hasattr(field, 'relation_name'):
relation = field.relation_name
else:
relation = None
if field_name not in model_fields:
cursor.execute(*ir_model_field.insert(
[ir_model_field.model, ir_model_field.name,
ir_model_field.field_description,
ir_model_field.ttype, ir_model_field.relation,
ir_model_field.help, ir_model_field.module],
[[model_id, field_name, field.string, field._type,
relation, field.help, module_name]]))
elif (model_fields[field_name]['field_description'] != field.string
or model_fields[field_name]['ttype'] != field._type
or model_fields[field_name]['relation'] != relation
or model_fields[field_name]['help'] != field.help):
cursor.execute(*ir_model_field.update(
[ir_model_field.field_description,
ir_model_field.ttype, ir_model_field.relation,
ir_model_field.help],
[field.string, field._type, relation, field.help],
where=ir_model_field.id ==
model_fields[field_name]['id']))
# Clean ir_model_field from field that are no more existing.
for field_name in model_fields:
if model_fields[field_name]['module'] == module_name \
and field_name not in model._fields:
#XXX This delete field even when it is defined later
# in the module
cursor.execute(*ir_model_field.delete(
where=ir_model_field.id ==
model_fields[field_name]['id']))
@staticmethod
def default_name():
return 'No Name'
@staticmethod
def default_field_description():
return 'No description available'
@classmethod
def validate(cls, fields):
super(ModelField, cls).validate(fields)
cls.check_name(fields)
@classmethod
def check_name(cls, fields):
'''
Check name
'''
for field in fields:
if not IDENTIFIER.match(field.name):
cls.raise_user_error('invalid_name', (field.name,))
@classmethod
def read(cls, ids, fields_names=None):
pool = Pool()
Translation = pool.get('ir.translation')
Model = pool.get('ir.model')
to_delete = []
if Transaction().context.get('language'):
if fields_names is None:
fields_names = cls._fields.keys()
if 'field_description' in fields_names \
or 'help' in fields_names:
if 'model' not in fields_names:
fields_names.append('model')
to_delete.append('model')
if 'name' not in fields_names:
fields_names.append('name')
to_delete.append('name')
res = super(ModelField, cls).read(ids, fields_names=fields_names)
if (Transaction().context.get('language')
and ('field_description' in fields_names
or 'help' in fields_names)):
model_ids = set()
for rec in res:
if isinstance(rec['model'], (list, tuple)):
model_ids.add(rec['model'][0])
else:
model_ids.add(rec['model'])
model_ids = list(model_ids)
cursor = Transaction().cursor
model = Model.__table__()
cursor.execute(*model.select(model.id, model.model,
where=model.id.in_(model_ids)))
id2model = dict(cursor.fetchall())
trans_args = []
for rec in res:
if isinstance(rec['model'], (list, tuple)):
model_id = rec['model'][0]
else:
model_id = rec['model']
if 'field_description' in fields_names:
trans_args.append((id2model[model_id] + ',' + rec['name'],
'field', Transaction().language, None))
if 'help' in fields_names:
trans_args.append((id2model[model_id] + ',' + rec['name'],
'help', Transaction().language, None))
Translation.get_sources(trans_args)
for rec in res:
if isinstance(rec['model'], (list, tuple)):
model_id = rec['model'][0]
else:
model_id = rec['model']
if 'field_description' in fields_names:
res_trans = Translation.get_source(
id2model[model_id] + ',' + rec['name'],
'field', Transaction().language)
if res_trans:
rec['field_description'] = res_trans
if 'help' in fields_names:
res_trans = Translation.get_source(
id2model[model_id] + ',' + rec['name'],
'help', Transaction().language)
if res_trans:
rec['help'] = res_trans
if to_delete:
for rec in res:
for field in to_delete:
del rec[field]
return res
class ModelAccess(ModelSQL, ModelView):
"Model access"
__name__ = 'ir.model.access'
_rec_name = 'model'
model = fields.Many2One('ir.model', 'Model', required=True,
ondelete="CASCADE")
group = fields.Many2One('res.group', 'Group',
ondelete="CASCADE")
perm_read = fields.Boolean('Read Access')
perm_write = fields.Boolean('Write Access')
perm_create = fields.Boolean('Create Access')
perm_delete = fields.Boolean('Delete Access')
description = fields.Text('Description')
_get_access_cache = Cache('ir_model_access.get_access', context=False)
@classmethod
def __setup__(cls):
super(ModelAccess, cls).__setup__()
cls._error_messages.update({
'read': 'You can not read this document! (%s)',
'write': 'You can not write in this document! (%s)',
'create': 'You can not create this kind of document! (%s)',
'delete': 'You can not delete this document! (%s)',
})
cls.__rpc__.update({
'get_access': RPC(),
})
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
cursor = Transaction().cursor
super(ModelAccess, cls).__register__(module_name)
table = TableHandler(cursor, cls, module_name)
# Migration from 2.6 (model, group) no more unique
table.drop_constraint('model_group_uniq')
@staticmethod
def check_xml_record(accesses, values):
return True
@staticmethod
def default_perm_read():
return False
@staticmethod
def default_perm_write():
return False
@staticmethod
def default_perm_create():
return False
@staticmethod
def default_perm_delete():
return False
@classmethod
def get_access(cls, models):
'Return access for models'
# root user above constraint
if Transaction().user == 0:
return defaultdict(lambda: defaultdict(lambda: True))
pool = Pool()
Model = pool.get('ir.model')
UserGroup = pool.get('res.user-res.group')
cursor = Transaction().cursor
user = Transaction().user
model_access = cls.__table__()
ir_model = Model.__table__()
user_group = UserGroup.__table__()
access = {}
for model in models:
maccess = cls._get_access_cache.get((user, model), default=-1)
if maccess == -1:
break
access[model] = maccess
else:
return access
default = {'read': True, 'write': True, 'create': True, 'delete': True}
access = dict((m, default) for m in models)
cursor.execute(*model_access.join(ir_model, 'LEFT',
condition=model_access.model == ir_model.id
).join(user_group, 'LEFT',
condition=user_group.group == model_access.group
).select(
ir_model.model,
Max(Case((model_access.perm_read, 1), else_=0)),
Max(Case((model_access.perm_write, 1), else_=0)),
Max(Case((model_access.perm_create, 1), else_=0)),
Max(Case((model_access.perm_delete, 1), else_=0)),
where=ir_model.model.in_(models)
& ((user_group.user == user) | (model_access.group == None)),
group_by=ir_model.model))
access.update(dict(
(m, {'read': r, 'write': w, 'create': c, 'delete': d})
for m, r, w, c, d in cursor.fetchall()))
for model, maccess in access.iteritems():
cls._get_access_cache.set((user, model), maccess)
return access
@classmethod
def check(cls, model_name, mode='read', raise_exception=True):
'Check access for model_name and mode'
assert mode in ['read', 'write', 'create', 'delete'], \
'Invalid access mode for security'
if Transaction().user == 0:
return True
access = cls.get_access([model_name])[model_name][mode]
if not access and access is not None:
if raise_exception:
cls.raise_user_error(mode, model_name)
else:
return False
return True
@classmethod
def write(cls, accesses, vals):
super(ModelAccess, cls).write(accesses, vals)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
@classmethod
def create(cls, vlist):
res = super(ModelAccess, cls).create(vlist)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
return res
@classmethod
def delete(cls, accesses):
super(ModelAccess, cls).delete(accesses)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
class ModelFieldAccess(ModelSQL, ModelView):
"Model Field Access"
__name__ = 'ir.model.field.access'
_rec_name = 'field'
field = fields.Many2One('ir.model.field', 'Field', required=True,
ondelete='CASCADE')
group = fields.Many2One('res.group', 'Group', ondelete='CASCADE')
perm_read = fields.Boolean('Read Access')
perm_write = fields.Boolean('Write Access')
perm_create = fields.Boolean('Create Access')
perm_delete = fields.Boolean('Delete Access')
description = fields.Text('Description')
_get_access_cache = Cache('ir_model_field_access.check')
@classmethod
def __setup__(cls):
super(ModelFieldAccess, cls).__setup__()
cls._error_messages.update({
'read': 'You can not read the field! (%s.%s)',
'write': 'You can not write on the field! (%s.%s)',
})
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
cursor = Transaction().cursor
super(ModelFieldAccess, cls).__register__(module_name)
table = TableHandler(cursor, cls, module_name)
# Migration from 2.6 (field, group) no more unique
table.drop_constraint('field_group_uniq')
@staticmethod
def check_xml_record(field_accesses, values):
return True
@staticmethod
def default_perm_read():
return False
@staticmethod
def default_perm_write():
return False
@staticmethod
def default_perm_create():
return True
@staticmethod
def default_perm_delete():
return True
@classmethod
def get_access(cls, models):
'Return fields access for models'
# root user above constraint
if Transaction().user == 0:
return defaultdict(lambda: defaultdict(
lambda: defaultdict(lambda: True)))
pool = Pool()
Model = pool.get('ir.model')
ModelField = pool.get('ir.model.field')
UserGroup = pool.get('res.user-res.group')
cursor = Transaction().cursor
user = Transaction().user
field_access = cls.__table__()
ir_model = Model.__table__()
model_field = ModelField.__table__()
user_group = UserGroup.__table__()
accesses = {}
for model in models:
maccesses = cls._get_access_cache.get((user, model))
if maccesses is None:
break
accesses[model] = maccesses
else:
return accesses
default = {}
accesses = dict((m, default) for m in models)
cursor.execute(*field_access.join(model_field,
condition=field_access.field == model_field.id
).join(ir_model,
condition=model_field.model == ir_model.id
).join(user_group, 'LEFT',
condition=user_group.group == field_access.group
).select(
ir_model.model,
model_field.name,
Max(Case((field_access.perm_read, 1), else_=0)),
Max(Case((field_access.perm_write, 1), else_=0)),
Max(Case((field_access.perm_create, 1), else_=0)),
Max(Case((field_access.perm_delete, 1), else_=0)),
where=ir_model.model.in_(models)
& ((user_group.user == user) | (field_access.group == None)),
group_by=[ir_model.model, model_field.name]))
for m, f, r, w, c, d in cursor.fetchall():
accesses[m][f] = {'read': r, 'write': w, 'create': c, 'delete': d}
for model, maccesses in accesses.iteritems():
cls._get_access_cache.set((user, model), maccesses)
return accesses
@classmethod
def check(cls, model_name, fields, mode='read', raise_exception=True,
access=False):
'''
Check access for fields on model_name.
'''
assert mode in ('read', 'write', 'create', 'delete'), \
'Invalid access mode'
if Transaction().user == 0:
if access:
return dict((x, True) for x in fields)
return True
accesses = dict((f, a[mode])
for f, a in cls.get_access([model_name])[model_name].iteritems())
if access:
return accesses
for field in fields:
if not accesses.get(field, True):
if raise_exception:
cls.raise_user_error(mode, (model_name, field))
else:
return False
return True
@classmethod
def write(cls, field_accesses, vals):
super(ModelFieldAccess, cls).write(field_accesses, vals)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
@classmethod
def create(cls, vlist):
res = super(ModelFieldAccess, cls).create(vlist)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
return res
@classmethod
def delete(cls, field_accesses):
super(ModelFieldAccess, cls).delete(field_accesses)
# Restart the cache
cls._get_access_cache.clear()
ModelView._fields_view_get_cache.clear()
class ModelButton(ModelSQL, ModelView):
"Model Button"
__name__ = 'ir.model.button'
name = fields.Char('Name', required=True, readonly=True)
model = fields.Many2One('ir.model', 'Model', required=True, readonly=True,
ondelete='CASCADE', select=True)
groups = fields.Many2Many('ir.model.button-res.group', 'button', 'group',
'Groups')
_groups_cache = Cache('ir.model.button.groups')
@classmethod
def __setup__(cls):
super(ModelButton, cls).__setup__()
cls._sql_constraints += [
('name_model_uniq', 'UNIQUE(name, model)',
'The button name in model must be unique!'),
]
cls._order.insert(0, ('model', 'ASC'))
@classmethod
def create(cls, vlist):
result = super(ModelButton, cls).create(vlist)
# Restart the cache for get_groups
cls._groups_cache.clear()
return result
@classmethod
def write(cls, buttons, values):
super(ModelButton, cls).write(buttons, values)
# Restart the cache for get_groups
cls._groups_cache.clear()
@classmethod
def delete(cls, buttons):
super(ModelButton, cls).delete(buttons)
# Restart the cache for get_groups
cls._groups_cache.clear()
@classmethod
def get_groups(cls, model, name):
'''
Return a set of group ids for the named button on the model.
'''
key = (model, name)
groups = cls._groups_cache.get(key)
if groups is not None:
return groups
buttons = cls.search([
('model.model', '=', model),
('name', '=', name),
])
if not buttons:
groups = set()
else:
button, = buttons
groups = set(g.id for g in button.groups)
cls._groups_cache.set(key, groups)
return groups
class ModelData(ModelSQL, ModelView):
"Model data"
__name__ = 'ir.model.data'
fs_id = fields.Char('Identifier on File System', required=True,
help="The id of the record as known on the file system.",
select=True)
model = fields.Char('Model', required=True, select=True)
module = fields.Char('Module', required=True, select=True)
db_id = fields.Integer('Resource ID',
help="The id of the record in the database.", select=True,
required=True)
date_update = fields.DateTime('Update Date')
date_init = fields.DateTime('Init Date')
values = fields.Text('Values')
noupdate = fields.Boolean('No Update')
_get_id_cache = Cache('ir_model_data.get_id', context=False)
@classmethod
def __setup__(cls):
super(ModelData, cls).__setup__()
cls._sql_constraints = [
('fs_id_module_model_uniq', 'UNIQUE("fs_id", "module", "model")',
'The triple (fs_id, module, model) must be unique!'),
]
@classmethod
def __register__(cls, module_name):
TableHandler = backend.get('TableHandler')
cursor = Transaction().cursor
model_data = cls.__table__()
super(ModelData, cls).__register__(module_name)
table = TableHandler(cursor, cls, module_name)
# Migration from 2.6: remove inherit
if table.column_exist('inherit'):
cursor.execute(*model_data.delete(
where=model_data.inherit == True))
table.drop_column('inherit', True)
@staticmethod
def default_date_init():
return datetime.datetime.now()
@staticmethod
def default_noupdate():
return False
@classmethod
def write(cls, data, values):
super(ModelData, cls).write(data, values)
# Restart the cache for get_id
cls._get_id_cache.clear()
@classmethod
def get_id(cls, module, fs_id):
"""
Return for an fs_id the corresponding db_id.
"""
key = (module, fs_id)
id_ = cls._get_id_cache.get(key)
if id_ is not None:
return id_
data = cls.search([
('module', '=', module),
('fs_id', '=', fs_id),
], limit=1)
if not data:
raise Exception("Reference to %s not found"
% ".".join([module, fs_id]))
id_ = cls.read([d.id for d in data], ['db_id'])[0]['db_id']
cls._get_id_cache.set(key, id_)
return id_
class PrintModelGraphStart(ModelView):
'Print Model Graph'
__name__ = 'ir.model.print_model_graph.start'
level = fields.Integer('Level', required=True)
filter = fields.Text('Filter', help="Entering a Python "
"Regular Expression will exclude matching models from the graph.")
@staticmethod
def default_level():
return 1
class PrintModelGraph(Wizard):
__name__ = 'ir.model.print_model_graph'
start = StateView('ir.model.print_model_graph.start',
'ir.print_model_graph_start_view_form', [
Button('Cancel', 'end', 'tryton-cancel'),
Button('Print', 'print_', 'tryton-ok', default=True),
])
print_ = StateAction('ir.report_model_graph')
def transition_print_(self):
return 'end'
def do_print_(self, action):
return action, {
'id': Transaction().context.get('active_id'),
'ids': Transaction().context.get('active_ids'),
'level': self.start.level,
'filter': self.start.filter,
}
class ModelGraph(Report):
__name__ = 'ir.model.graph'
@classmethod
def execute(cls, ids, data):
import pydot
pool = Pool()
Model = pool.get('ir.model')
ActionReport = pool.get('ir.action.report')
if not data['filter']:
filter = None
else:
filter = re.compile(data['filter'], re.VERBOSE)
action_report_ids = ActionReport.search([
('report_name', '=', cls.__name__)
])
if not action_report_ids:
raise Exception('Error', 'Report (%s) not find!' % cls.__name__)
action_report = ActionReport(action_report_ids[0])
models = Model.browse(ids)
graph = pydot.Dot(fontsize="8")
graph.set('center', '1')
graph.set('ratio', 'auto')
cls.fill_graph(models, graph, level=data['level'], filter=filter)
data = graph.create(prog='dot', format='png')
return ('png', buffer(data), False, action_report.name)
@classmethod
def fill_graph(cls, models, graph, level=1, filter=None):
'''
Fills a pydot graph with a models structure.
'''
import pydot
pool = Pool()
Model = pool.get('ir.model')
sub_models = set()
if level > 0:
for model in models:
for field in model.fields:
if field.name in ('create_uid', 'write_uid'):
continue
if field.relation and not graph.get_node(field.relation):
sub_models.add(field.relation)
if sub_models:
model_ids = Model.search([
('model', 'in', list(sub_models)),
])
sub_models = Model.browse(model_ids)
if set(sub_models) != set(models):
cls.fill_graph(sub_models, graph, level=level - 1,
filter=filter)
for model in models:
if filter and re.search(filter, model.model):
continue
label = '"{' + model.model + '\\n'
if model.fields:
label += '|'
for field in model.fields:
if field.name in ('create_uid', 'write_uid',
'create_date', 'write_date', 'id'):
continue
label += '+ ' + field.name + ': ' + field.ttype
if field.relation:
label += ' ' + field.relation
label += '\l'
label += '}"'
node_name = '"%s"' % model.model
node = pydot.Node(node_name, shape='record', label=label)
graph.add_node(node)
for field in model.fields:
if field.name in ('create_uid', 'write_uid'):
continue
if field.relation:
node_name = '"%s"' % field.relation
if not graph.get_node(node_name):
continue
args = {}
tail = model.model
head = field.relation
edge_model_name = '"%s"' % model.model
edge_relation_name = '"%s"' % field.relation
if field.ttype == 'many2one':
edge = graph.get_edge(edge_model_name,
edge_relation_name)
if edge:
continue
args['arrowhead'] = "normal"
elif field.ttype == 'one2many':
edge = graph.get_edge(edge_relation_name,
edge_model_name)
if edge:
continue
args['arrowhead'] = "normal"
tail = field.relation
head = model.model
elif field.ttype == 'many2many':
if graph.get_edge(edge_model_name, edge_relation_name):
continue
if graph.get_edge(edge_relation_name, edge_model_name):
continue
args['arrowtail'] = "inv"
args['arrowhead'] = "inv"
edge = pydot.Edge(str(tail), str(head), **args)
graph.add_edge(edge)
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