Step-1 Install the web_advanced_filters module.
Step-2 After that custmozie .py(Python file) file in web_advanced_filters module:
In below example, I have custmozied .py file. You can directly copy the below python code in your .py file.
class IrFilters(Model):
_inherit = 'ir.filters'
_evaluate_before_negate = ['one2many', 'many2many']
def _is_frozen_get(self, cr, uid, ids, field_name, args, context=None):
'''determine if this is fixed list of ids'''
result = {}
for this in self.browse(cr, uid, ids, context=context):
try:
domain = safe_eval(this.domain)
except:
domain = [expression.FALSE_LEAF]
result[this.id] = (len(domain) == 1 and
expression.is_leaf(domain[0]) and
domain[0][0] == 'id')
return result
def _domain_get(self, cr, uid, ids, field_name, args, context=None):
'''combine our domain with all domains to union/complement,
this works recursively'''
def eval_n(domain):
'''parse a domain and normalize it'''
try:
domain = safe_eval(domain)
except:
domain = [expression.FALSE_LEAF]
return expression.normalize_domain(
domain or [expression.FALSE_LEAF])
result = {}
for this in self.read(
cr, uid, ids,
['domain_this', 'union_filter_ids', 'complement_filter_ids'],
context=context):
domain = eval_n(this['domain_this'])
for u in self.read(cr, uid, this['union_filter_ids'],
['domain', 'evaluate_always', 'model_id'],
context=context):
if u['evaluate_always']:
matching_ids = self.pool[u['model_id']].search(
cr, uid, eval_n(u['domain']),
context=context)
domain = expression.OR([
domain,
[('id', 'in', matching_ids)],
])
else:
domain = expression.OR([domain, eval_n(u['domain'])])
for c in self.read(cr, uid, this['complement_filter_ids'],
['domain', 'evaluate_before_negate',
'model_id'],
context=context):
if c['evaluate_before_negate']:
matching_ids = self.pool[c['model_id']].search(
cr, uid, eval_n(c['domain']),
context=context)
domain = expression.AND([
domain,
[('id', 'not in', matching_ids)],
])
else:
domain = expression.AND([
domain,
['!'] + eval_n(c['domain'])])
result[this['id']] = str(expression.normalize_domain(domain))
return result
def _domain_set(self, cr, uid, ids, field_name, field_value, args,
context=None):
self.write(cr, uid, ids, {'domain_this': field_value})
def _evaluate_get(self, cr, uid, ids, field_name, args, context=None):
"""check if this filter contains references to x2many fields. If so,
then negation goes wrong in nearly all cases, so we evaluate the
filter and remove its resulting ids"""
result = {}
for this in self.read(cr, uid, ids, ['model_id', 'domain'],
context=context):
result[this['id']] = {
'evaluate_before_negate': False,
'evaluate_always': False,
}
domain = expression.normalize_domain(
safe_eval(this['domain'] or 'False') or
[expression.FALSE_LEAF])
for arg in domain:
if not expression.is_leaf(arg) or not isinstance(
arg[0], basestring):
continue
current_model = self.pool.get(this['model_id'])
if not current_model:
continue
has_x2many = False
has_auto_join = False
for field_name in arg[0].split('.'):
if field_name in MAGIC_COLUMNS:
continue
field = current_model._all_columns[field_name].column
has_x2many |= field._type in self._evaluate_before_negate
has_x2many |= isinstance(field, fields.function)
has_auto_join |= field._auto_join
has_auto_join |= isinstance(field, fields.function)
if hasattr(field, '_obj'):
current_model = self.pool.get(field._obj)
if not current_model or has_x2many and has_auto_join:
break
result[this['id']]['evaluate_before_negate'] |= has_x2many
result[this['id']]['evaluate_always'] |= has_auto_join
if result[this['id']]['evaluate_before_negate'] and\
result[this['id']]['evaluate_always']:
break
return result
_columns = {
'is_frozen': fields.function(
_is_frozen_get, type='boolean', string='Frozen'),
'union_filter_ids': fields.many2many(
'ir.filters', 'ir_filters_union_rel', 'left_filter_id',
'right_filter_id', 'Add result of filters',
domain=['|', ('active', '=', False), ('active', '=', True)]),
'complement_filter_ids': fields.many2many(
'ir.filters', 'ir_filters_complement_rel', 'left_filter_id',
'right_filter_id', 'Remove result of filters',
domain=['|', ('active', '=', False), ('active', '=', True)]),
'active': fields.boolean('Active'),
'domain': fields.function(
_domain_get, type='text', string='Domain',
fnct_inv=_domain_set),
'domain_this': fields.text(
'This filter\'s own domain', oldname='domain'),
'evaluate_before_negate': fields.function(
_evaluate_get, type='boolean', multi='evaluate',
string='Evaluate this filter before negating',
help='This is necessary if this filter contains positive operators'
'on x2many fields'),
'evaluate_always': fields.function(
_evaluate_get, type='boolean', multi='evaluate',
string='Always evaluate this filter before using it',
help='This is necessary if this filter contains x2many fields with'
'_auto_join activated'),
'save_as_public': fields.function(
lambda self, cr, uid, ids, *args, **kwargs:
dict((i, False) for i in ids),
fnct_inv=lambda *args, **kwargs: None,
type='boolean',
string='Share with all users'),
}
_defaults = {
'active': True,
'save_as_public': False,
}
def _evaluate(self, cr, uid, ids, context=None):
assert len(ids) == 1
this = self.browse(cr, uid, ids[0], context=context)
return self.pool[this.model_id].search(
cr, uid, safe_eval(this.domain), context=safe_eval(this.context))
def button_save(self, cr, uid, ids, context=None):
return {'type': 'ir.actions.act_window.close'}
def button_freeze(self, cr, uid, ids, context=None):
'''evaluate the filter and write a fixed [('id', 'in', [])] domain'''
for this in self.browse(cr, uid, ids, context=context):
ids = this._evaluate()
removed_filter_ids = [f.id for f in itertools.chain(
this.union_filter_ids, this.complement_filter_ids)]
this.write({
'domain': str([('id', 'in', ids)]),
'union_filter_ids': [(6, 0, [])],
'complement_filter_ids': [(6, 0, [])],
})
# if we removed inactive filters which are orphaned now, delete
# them
cr.execute('''delete from ir_filters
where
not active and id in %s
and not exists (select right_filter_id
from ir_filters_union_rel where left_filter_id=id)
and not exists (select right_filter_id
from ir_filters_complement_rel where
left_filter_id=id)
''',
(tuple(removed_filter_ids),))
def button_test(self, cr, uid, ids, context=None):
for this in self.browse(cr, uid, ids, context=context):
return {
'type': 'ir.actions.act_window',
'name': _('Testing %s') % this.name,
'res_model': this.model_id,
'domain': this.domain,
'view_type': 'form',
'view_mode': 'tree,form',
'context': {
'default_filter_id': this.id,
},
}
def _auto_init(self, cr, context=None):
cr.execute(
'SELECT count(attname) FROM pg_attribute '
'WHERE attrelid = '
'( SELECT oid FROM pg_class WHERE relname = %s) '
'AND attname = %s', (self._table, 'domain_this'))
if not cr.fetchone()[0]:
cr.execute(
'ALTER table %s RENAME domain TO domain_this' % self._table)
return super(IrFilters, self)._auto_init(cr, context=context)
def _migrate_name_change(self, cr, uid, context=None):
cr.execute(
"select id from ir_module_module where name='advanced_filters' "
"and author='Therp BV'")
old_name_installed = cr.fetchall()
if not old_name_installed:
return
cr.execute(
"delete from ir_model_data where module='web_advanced_filters'")
cr.execute(
"update ir_model_data set module='web_advanced_filters' "
"where module='advanced_filters'")
cr.execute(
"update ir_module_module set state='to remove' where "
"name='advanced_filters' and state not in "
"('uninstalled', 'to remove')")
def create(self, cr, uid, values, context=None):
values.setdefault(
'user_id', False if values.get('save_as_public') else uid)
return super(IrFilters, self).create(cr, uid, values, context=context)
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