529 lines
19 KiB
Python
529 lines
19 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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"model"
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.tools import Cache
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from trytond.report import Report
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from trytond.wizard import Wizard
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import datetime
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import base64
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import re
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IDENTIFIER = re.compile(r'^[a-zA-z_][a-zA-Z0-9_]*$')
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class Model(ModelSQL, ModelView):
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"Model"
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_name = 'ir.model'
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_description = __doc__
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name = fields.Char('Model Description', translate=True)
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model = fields.Char('Model Name', required=True)
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info = fields.Text('Information')
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module = fields.Char('Module',
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help="Module in which this model is defined")
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fields = fields.One2Many('ir.model.field', 'model', 'Fields',
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required=True)
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def __init__(self):
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super(Model, self).__init__()
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self._sql_constraints += [
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('model_uniq', 'UNIQUE(model)',
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'The model must be unique!'),
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]
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self._constraints += [
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('check_module', 'invalid_module'),
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]
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self._error_messages.update({
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'invalid_module': 'Module Name must be a python identifier!',
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})
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self._order.insert(0, ('model', 'ASC'))
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def check_module(self, cursor, user, ids):
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'''
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Check module
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'''
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for model in self.browse(cursor, user, ids):
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if model.module and not IDENTIFIER.match(model.module):
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return False
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return True
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Model()
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class ModelField(ModelSQL, ModelView):
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"Model field"
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_name = 'ir.model.field'
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_description = __doc__
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name = fields.Char('Name', required=True)
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relation = fields.Char('Model Relation')
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model = fields.Many2One('ir.model', 'Model', required=True,
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select=1, ondelete='CASCADE')
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field_description = fields.Char('Field Description', translate=True)
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ttype = fields.Char('Field Type')
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groups = fields.Many2Many('ir.model.field-res.group', 'field_id',
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'group_id', 'Groups')
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help = fields.Text('Help', translate=True)
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module = fields.Char('Module',
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help="Module in which this field is defined")
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def __init__(self):
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super(ModelField, self).__init__()
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self._sql_constraints += [
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('name_model_uniq', 'UNIQUE(name, model)',
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'The field name in model must be unique!'),
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]
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self._constraints += [
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('check_name', 'invalid_name'),
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]
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self._error_messages.update({
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'invalid_name': 'Model Field Name must be a python identifier!',
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})
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self._order.insert(0, ('name', 'ASC'))
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def default_name(self, cursor, user, context=None):
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return 'No Name'
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def default_field_description(self, cursor, user, context=None):
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return 'No description available'
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def check_name(self, cursor, user, ids):
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'''
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Check name
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'''
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for field in self.browse(cursor, user, ids):
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if not IDENTIFIER.match(field.name):
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return False
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return True
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def read(self, cursor, user, ids, fields_names=None, context=None):
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translation_obj = self.pool.get('ir.translation')
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if context is None:
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context = {}
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to_delete = []
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if context.get('language'):
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if fields_names is None:
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fields_names = self._columns.keys()
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if 'field_description' in fields_names \
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or 'help' in fields_names:
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if 'model' not in fields_names:
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fields_names.append('model')
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to_delete.append('model')
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if 'name' not in fields_names:
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fields_names.append('name')
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to_delete.append('name')
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res = super(ModelField, self).read(cursor, user, ids,
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fields_names=fields_names, context=context)
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if context.get('language') \
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and ('field_description' in fields_names \
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or 'help' in fields_names):
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model_ids = set()
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for rec in res:
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if isinstance(rec['model'], (list, tuple)):
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model_ids.add(rec['model'][0])
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else:
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model_ids.add(rec['model'])
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model_ids = list(model_ids)
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cursor.execute('SELECT id, model FROM ir_model WHERE id IN ' \
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'(' + ','.join(('%s',) * len(model_ids)) + ')', model_ids)
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id2model = dict(cursor.fetchall())
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trans_args = []
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for rec in res:
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if isinstance(rec['model'], (list, tuple)):
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model_id = rec['model'][0]
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else:
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model_id = rec['model']
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if 'field_description' in fields_names:
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trans_args.append(
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(id2model[model_id] + ',' + rec['name'],
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'field', context['language'], None))
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if 'help' in fields_names:
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trans_args.append((id2model[model_id] + ',' + rec['name'],
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'help', context['language'], None))
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translation_obj._get_sources(cursor, trans_args)
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for rec in res:
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if isinstance(rec['model'], (list, tuple)):
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model_id = rec['model'][0]
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else:
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model_id = rec['model']
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if 'field_description' in fields_names:
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res_trans = translation_obj._get_source(cursor,
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id2model[model_id] + ',' + rec['name'],
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'field', context['language'])
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if res_trans:
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rec['field_description'] = res_trans
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if 'help' in fields_names:
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res_trans = translation_obj._get_source(cursor,
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id2model[model_id] + ',' + rec['name'],
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'help', context['language'])
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if res_trans:
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rec['help'] = res_trans
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if to_delete:
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for rec in res:
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for field in to_delete:
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del rec[field]
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return res
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ModelField()
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class ModelAccess(ModelSQL, ModelView):
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"Model access"
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_name = 'ir.model.access'
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_description = __doc__
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_rec_name = 'model'
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model = fields.Many2One('ir.model', 'Model', required=True,
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ondelete="CASCADE")
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group = fields.Many2One('res.group', 'Group',
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ondelete="CASCADE")
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perm_read = fields.Boolean('Read Access')
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perm_write = fields.Boolean('Write Access')
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perm_create = fields.Boolean('Create Access')
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perm_delete = fields.Boolean('Delete Access')
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description = fields.Text('Description')
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def __init__(self):
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super(ModelAccess, self).__init__()
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self._sql_constraints += [
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('model_group_uniq', 'UNIQUE("model", "group")',
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'Only one record by model and group is allowed!'),
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]
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self._error_messages.update({
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'read': 'You can not read this document! (%s)',
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'write': 'You can not write in this document! (%s)',
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'create': 'You can not create this kind of document! (%s)',
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'delete': 'You can not delete this document! (%s)',
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})
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def check_xml_record(self, cursor, user, ids, values, context=None):
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return True
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def default_perm_read(self, cursor, user, context=None):
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return False
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def default_perm_write(self, cursor, user, context=None):
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return False
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def default_perm_create(self, cursor, user, context=None):
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return False
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def default_perm_delete(self, cursor, user, context=None):
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return False
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@Cache('ir_model_access.check')
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def check(self, cursor, user, model_name, mode='read',
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raise_exception=True, context=None):
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assert mode in ['read', 'write', 'create', 'delete'], \
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'Invalid access mode for security'
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model_obj = self.pool.get(model_name)
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if hasattr(model_obj, 'table_query') \
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and model_obj.table_query(context):
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return False
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if user == 0:
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return True
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ir_model_obj = self.pool.get('ir.model')
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user_group_obj = self.pool.get('res.user-res.group')
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cursor.execute('SELECT MAX(CASE WHEN a.perm_'+mode+' THEN 1 else 0 END) '
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'FROM ir_model_access a '
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'JOIN "' + ir_model_obj._table + '" m '
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'ON (a.model = m.id) '
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'JOIN "' + user_group_obj._table + '" gu '
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'ON (gu.gid = a."group") '
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'WHERE m.model = %s AND gu.uid = %s', (model_name, user,))
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row = cursor.fetchall()
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if row[0][0] is None:
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cursor.execute('SELECT ' \
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'MAX(CASE WHEN perm_' + mode + ' THEN 1 else 0 END) ' \
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'FROM ir_model_access a ' \
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'JOIN ir_model m ' \
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'ON (a.model = m.id) ' \
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'WHERE a."group" IS NULL AND m.model = %s', (model_name,))
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row = cursor.fetchall()
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if row[0][0] is None:
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return True
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if not row[0][0]:
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if raise_exception:
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self.raise_user_error(cursor, mode, model_name,
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context=context)
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else:
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return False
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return True
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# Methods to clean the cache on the Check Method.
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def write(self, cursor, user, ids, vals, context=None):
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res = super(ModelAccess, self).write(cursor, user, ids, vals,
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context=context)
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self.check(cursor.dbname)
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# Restart the cache
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for _, model in self.pool.iterobject():
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try:
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model.fields_view_get(cursor.dbname)
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except:
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pass
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return res
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def create(self, cursor, user, vals, context=None):
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res = super(ModelAccess, self).create(cursor, user, vals,
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context=context)
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self.check(cursor.dbname)
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# Restart the cache
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for _, model in self.pool.iterobject():
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try:
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model.fields_view_get(cursor.dbname)
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except:
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pass
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return res
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def delete(self, cursor, user, ids, context=None):
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res = super(ModelAccess, self).delete(cursor, user, ids,
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context=context)
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self.check(cursor.dbname)
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# Restart the cache
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for _, model in self.pool.iterobject():
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try:
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model.fields_view_get(cursor.dbname)
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except:
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pass
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return res
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ModelAccess()
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class ModelData(ModelSQL, ModelView):
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"Model data"
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_name = 'ir.model.data'
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_description = __doc__
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fs_id = fields.Char('Identifier on File System', required=True,
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help="The id of the record as known on the file system.",
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select=1)
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model = fields.Char('Model', required=True, select=1)
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module = fields.Char('Module', required=True, select=1)
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db_id = fields.Integer('Resource ID',
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help="The id of the record in the database.", select=1)
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date_update = fields.DateTime('Update Date')
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date_init = fields.DateTime('Init Date')
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values = fields.Text('Values')
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inherit = fields.Boolean('Inherit')
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noupdate = fields.Boolean('No Update')
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def __init__(self):
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super(ModelData, self).__init__()
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self._sql_constraints = [
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('fs_id_module_model_uniq', 'UNIQUE("fs_id", "module", "model")',
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'The triple (fs_id, module, model) must be unique!'),
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]
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def default_date_init(self, cursor, user, context=None):
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return datetime.datetime.now()
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def default_inherit(self, cursor, user, context=None):
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return False
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def default_noupdate(self, cursor, user, context=None):
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return False
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def get_id(self, cursor, user, module, fs_id, context=None):
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"""
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Return for an fs_id the corresponding db_id.
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:param cursor: the database cursor
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:param user: the user id
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:param module: the module name
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:param fs_id: the id in the xml file
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:param context: the context
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:return: the database id
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"""
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ids = self.search(cursor, user, [
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('module', '=', module),
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('fs_id', '=', fs_id),
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('inherit', '=', False),
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], limit=1, context=context)
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if not ids:
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raise Exception("Reference to %s not found" % \
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".".join([module,fs_id]))
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return self.read(cursor, user, ids[0], ['db_id'],
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context=context)['db_id']
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ModelData()
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class PrintModelGraphInit(ModelView):
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'Print Model Graph Init'
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_name = 'ir.model.print_model_graph.init'
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_description = __doc__
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level = fields.Integer('Level')
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filter = fields.Text('Filter', help="Entering a Python "
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"Regular Expression will exclude matching models from the graph.")
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def default_level(self, cursor, user, context=None):
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return 1
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PrintModelGraphInit()
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class PrintModelGraph(Wizard):
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_name = 'ir.model.print_model_graph'
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states = {
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'init': {
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'result': {
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'type': 'form',
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'object': 'ir.model.print_model_graph.init',
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'state': [
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('end', 'Cancel', 'tryton-cancel'),
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('print', 'Print', 'tryton-ok', True),
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],
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},
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},
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'print': {
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'result': {
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'type': 'print',
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'report': 'ir.model.graph',
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'state': 'end',
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},
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},
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}
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PrintModelGraph()
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class ModelGraph(Report):
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_name = 'ir.model.graph'
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def execute(self, cursor, user, ids, datas, context=None):
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import pydot
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model_obj = self.pool.get('ir.model')
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action_report_obj = self.pool.get('ir.action.report')
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if context is None:
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context = {}
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if not datas['form']['filter']:
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filter = None
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else:
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filter = re.compile(datas['form']['filter'], re.VERBOSE)
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action_report_ids = action_report_obj.search(cursor, user, [
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('report_name', '=', self._name)
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], context=context)
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if not action_report_ids:
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raise Exception('Error', 'Report (%s) not find!' % self._name)
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action_report = action_report_obj.browse(cursor, user,
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action_report_ids[0], context=context)
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models = model_obj.browse(cursor, user, ids, context=context)
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graph = pydot.Dot(fontsize="8")
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graph.set('center', '1')
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graph.set('ratio', 'auto')
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self.fill_graph(cursor, user, models, graph,
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level=datas['form']['level'], filter=filter, context=context)
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data = graph.create(prog='dot', format='png')
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return ('png', base64.encodestring(data), False, action_report.name)
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def fill_graph(self, cursor, user, models, graph, level=1, filter=None,
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context=None):
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'''
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Fills a pydot graph with a models structure.
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:param cursor: the database cursor
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:param user: the user id
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:param models: a BrowseRecordList of ir.model
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:param graph: a pydot.Graph
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:param level: the depth to dive into model reationships
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:param filter: a compiled regular expression object to filter specific
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models
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:param context: the context
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'''
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import pydot
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model_obj = self.pool.get('ir.model')
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sub_models = set()
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if level > 0:
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for model in models:
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for field in model.fields:
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if field.name in ('create_uid', 'write_uid'):
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continue
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if field.relation and not graph.get_node(field.relation):
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sub_models.add(field.relation)
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if sub_models:
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model_ids = model_obj.search(cursor, user, [
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('model', 'in', list(sub_models)),
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], context=context)
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sub_models = model_obj.browse(cursor, user, model_ids,
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context=context)
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if set(sub_models) != set(models):
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self.fill_graph(cursor, user, sub_models, graph,
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level=level - 1, filter=filter, context=context)
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for model in models:
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if filter and re.search(filter, model.model):
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continue
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label = '{' + model.model + '\\n'
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if model.fields:
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label += '|'
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for field in model.fields:
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if field.name in ('create_uid', 'write_uid',
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'create_date', 'write_date', 'id'):
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continue
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label += '+ ' + field.name + ': ' + field.ttype
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if field.relation:
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label += ' ' + field.relation
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label += '\l'
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label += '}'
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if pydot.__version__ == '1.0.2':
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# version 1.0.2 doesn't quote correctly label on Node object
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label = '"' + label + '"'
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node = pydot.Node(str(model.model), shape='record', label=label)
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graph.add_node(node)
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for field in model.fields:
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if field.name in ('create_uid', 'write_uid'):
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continue
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if field.relation:
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node_name = field.relation
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if pydot.__version__ == '1.0.2':
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# version 1.0.2 doesn't quote correctly node name
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node_name = '"' + node_name + '"'
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if not graph.get_node(node_name):
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continue
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args = {}
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tail = model.model
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head = field.relation
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edge_model_name = model.model
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edge_relation_name = field.relation
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if pydot.__version__ == '1.0.2':
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# version 1.0.2 doesn't quote correctly edge name
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edge_model_name = '"' + edge_model_name + '"'
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edge_relation_name = '"' + edge_relation_name + '"'
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if field.ttype == 'many2one':
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edge = graph.get_edge(edge_model_name,
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edge_relation_name)
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if edge:
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continue
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args['arrowhead'] = "normal"
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elif field.ttype == 'one2many':
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edge = graph.get_edge(edge_relation_name,
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edge_model_name)
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if edge:
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continue
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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)
|
|
|
|
ModelGraph()
|