@ -4,22 +4,10 @@
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
import time
from functools import wraps
from odoo import api , fields , models , _
from odoo.exceptions import UserError , ValidationError
from odoo.tools.safe_eval import safe_eval
def implemented_by_base_exception ( func ) :
""" Call a prefixed function based on ' namespace ' . """
@wraps ( func )
def wrapper ( cls , * args , * * kwargs ) :
fun_name = func . __name__
fun = ' _ %s %s ' % ( cls . rule_group , fun_name )
if not hasattr ( cls , fun ) :
fun = ' _default %s ' % ( fun_name )
return getattr ( cls , fun ) ( * args , * * kwargs )
return wrapper
from odoo import osv
class ExceptionRule ( models . Model ) :
@ -33,13 +21,6 @@ class ExceptionRule(models.Model):
string = ' Sequence ' ,
help = " Gives the sequence order when applying the test " ,
)
rule_group = fields . Selection (
selection = [ ] ,
help = " Rule group is used to group the rules that must validated "
" at same time for a target object. Ex: "
" validate sale.order.line rules with sale order rules. " ,
required = True ,
)
model = fields . Selection ( selection = [ ] , string = ' Apply on ' , required = True )
exception_type = fields . Selection (
@ -52,40 +33,22 @@ class ExceptionRule(models.Model):
" are evaluated with several records " )
domain = fields . Char ( ' Domain ' )
active = fields . Boolean ( ' Active ' )
next_state = fields . Char (
' Next state ' ,
help = " If we detect exception we set the state of object (ex purchase) "
" to the next_state (ex ' to approve ' ). If there are more than one "
" exception detected and all have a value for next_state, we use "
" the exception having the smallest sequence value " ,
)
active = fields . Boolean ( ' Active ' , default = True )
code = fields . Text (
' Python Code ' ,
help = " Python code executed to check if the exception apply or "
" not. Use failed = True to block the exception " ,
)
@api.constrains ( ' next_state ' )
def _check_next_state_value ( self ) :
""" Ensure that the next_state value is in the state values of
destination model """
@api.constrains ( ' exception_type ' , ' domain ' , ' code ' )
def check_exception_type_consistency ( self ) :
for rule in self :
if rule . next_state :
select_vals = self . env [
rule . model ] . fields_get ( ) [
' state ' ] [ ' selection ' ]
select_vals_code = [ s [ 0 ] for s in select_vals ]
if rule . next_state not in select_vals_code :
raise ValidationError ( _ (
' The value " %s " you choose for the " next state " '
' field state of " %s " is wrong. '
' Value must be in this list %s '
) % (
rule . next_state ,
rule . model ,
select_vals
) )
if ( ( rule . exception_type == ' by_py_code ' and not rule . code ) or
( rule . exception_type == ' by_domain ' and not rule . domain ) ) :
raise ValidationError (
_ ( " There is a problem of configuration, python code or "
" domain is missing to match the exception type. " )
)
@api.multi
def _get_domain ( self ) :
@ -94,7 +57,118 @@ class ExceptionRule(models.Model):
return safe_eval ( self . domain )
class BaseExceptionMethod ( models . AbstractModel ) :
_name = ' base.exception.method '
@api.multi
def _reverse_field ( self ) :
raise NotImplementedError ( )
def _rule_domain ( self ) :
""" Filter exception.rules.
By default , only the rules with the correct model
will be used .
"""
return [ ( ' model ' , ' = ' , self . _name ) ]
@api.multi
def detect_exceptions ( self ) :
""" List all exception_ids applied on self
Exception ids are also written on records
If self is empty , check exceptions on all records .
"""
rules = self . env [ ' exception.rule ' ] . sudo ( ) . search (
self . _rule_domain ( ) )
all_exception_ids = [ ]
for rule in rules :
records_with_exception = self . _detect_exceptions ( rule )
reverse_field = self . _reverse_field ( )
if self :
commons = self and rule [ reverse_field ]
to_remove = commons - records_with_exception
to_add = records_with_exception - commons
to_remove_list = [ ( 3 , x . id , _ ) for x in to_remove ]
to_add_list = [ ( 4 , x . id , _ ) for x in to_add ]
rule . write ( { reverse_field : to_remove_list + to_add_list } )
else :
rule . write ( {
reverse_field : [ ( 6 , 0 , records_with_exception . ids ) ]
} )
if records_with_exception :
all_exception_ids . append ( rule . id )
return all_exception_ids
@api.model
def _exception_rule_eval_context ( self , rec ) :
return {
' time ' : time ,
' self ' : rec ,
# object, obj: deprecated.
# should be removed in future migrations
' object ' : rec ,
' obj ' : rec ,
# copy context to prevent side-effects of eval
# should be deprecated too, accesible through self.
' context ' : self . env . context . copy ( )
}
@api.model
def _rule_eval ( self , rule , rec ) :
expr = rule . code
space = self . _exception_rule_eval_context ( rec )
try :
safe_eval ( expr ,
space ,
mode = ' exec ' ,
nocopy = True ) # nocopy allows to return 'result'
except Exception as e :
raise UserError (
_ ( ' Error when evaluating the exception.rule '
' rule: \n %s \n ( %s ) ' ) % ( rule . name , e ) )
return space . get ( ' failed ' , False )
@api.multi
def _detect_exceptions ( self , rule ) :
if rule . exception_type == ' by_py_code ' :
return self . _detect_exceptions_by_py_code ( rule )
elif rule . exception_type == ' by_domain ' :
return self . _detect_exceptions_by_domain ( rule )
@api.multi
def _get_base_domain ( self ) :
domain = [ ( ' ignore_exception ' , ' = ' , False ) ]
if self :
domain = osv . expression . AND ( [ domain , [ ( ' id ' , ' in ' , self . ids ) ] ] )
return domain
@api.multi
def _detect_exceptions_by_py_code ( self , rule ) :
"""
Find exceptions found on self .
If self is empty , check on all records .
"""
domain = self . _get_base_domain ( )
records = self . search ( domain )
records_with_exception = self . env [ self . _name ]
for record in records :
if self . _rule_eval ( rule , record ) :
records_with_exception | = record
return records_with_exception
@api.multi
def _detect_exceptions_by_domain ( self , rule ) :
"""
Find exceptions found on self .
If self is empty , check on all records .
"""
base_domain = self . _get_base_domain ( )
rule_domain = rule . _get_domain ( )
domain = osv . expression . AND ( [ base_domain , rule_domain ] )
return self . search ( domain )
class BaseException ( models . AbstractModel ) :
_inherit = ' base.exception.method '
_name = ' base.exception '
_order = ' main_exception_id asc '
_description = ' Exception '
@ -105,7 +179,6 @@ class BaseException(models.AbstractModel):
string = ' Main Exception ' ,
store = True ,
)
rule_group = fields . Selection ( [ ] , readonly = True )
exception_ids = fields . Many2many ( ' exception.rule ' , string = ' Exceptions ' )
ignore_exception = fields . Boolean ( ' Ignore Exceptions ' , copy = False )
@ -149,214 +222,3 @@ class BaseException(models.AbstractModel):
if exception_ids :
exceptions = self . env [ ' exception.rule ' ] . browse ( exception_ids )
raise ValidationError ( ' \n ' . join ( exceptions . mapped ( ' name ' ) ) )
@api.multi
def test_exceptions ( self ) :
"""
Condition method for the workflow from draft to confirm
"""
if self . detect_exceptions ( ) :
return False
return True
@api.multi
def _reverse_field ( self ) :
""" Name of the many2many field from exception rule to self.
In order to take advantage of domain optimisation , exception rule
model should have a many2many field to inherited object .
The opposit relation already exists in the name of exception_ids
Example :
class ExceptionRule ( models . Model ) :
_inherit = ' exception.rule '
model = fields . Selection (
selection_add = [
( ' sale.order ' , ' Sale order ' ) ,
[ . . . ]
] )
sale_ids = fields . Many2many (
' sale.order ' ,
string = ' Sales ' )
[ . . . ]
"""
exception_obj = self . env [ ' exception.rule ' ]
reverse_fields = self . env [ ' ir.model.fields ' ] . search ( [
[ ' model ' , ' = ' , ' exception.rule ' ] ,
[ ' ttype ' , ' = ' , ' many2many ' ] ,
[ ' relation ' , ' = ' , self [ 0 ] . _name ] ,
] )
# ir.model.fields may contain old variable name
# so we check if the field exists on exception rule
return ( [
field . name for field in reverse_fields
if hasattr ( exception_obj , field . name )
] or [ None ] ) [ 0 ]
@api.multi
def _rule_domain ( self ) :
""" Filter exception.rules.
By default , only the rules with the correct rule group
will be used .
"""
return [ ( ' rule_group ' , ' in ' , self . mapped ( ' rule_group ' ) ) ]
@api.multi
def detect_exceptions ( self ) :
""" List all exception_ids applied on self
Exception ids are also written on records
"""
if not self :
return [ ]
exception_obj = self . env [ ' exception.rule ' ]
all_exceptions = exception_obj . sudo ( ) . search (
self . _rule_domain ( ) )
model_exceptions = all_exceptions . filtered (
lambda ex : ex . model == self . _name )
sub_exceptions = all_exceptions . filtered (
lambda ex : ex . model != self . _name )
reverse_field = self . _reverse_field ( )
if reverse_field :
optimize = True
else :
optimize = False
exception_by_rec , exception_by_rule = self . _detect_exceptions (
model_exceptions , sub_exceptions , optimize )
all_exception_ids = [ ]
for obj , exception_ids in exception_by_rec . items ( ) :
obj . exception_ids = [ ( 6 , 0 , exception_ids ) ]
all_exception_ids + = exception_ids
for rule , exception_ids in exception_by_rule . items ( ) :
rule [ reverse_field ] = [ ( 6 , 0 , exception_ids . ids ) ]
if exception_ids :
all_exception_ids + = [ rule . id ]
return list ( set ( all_exception_ids ) )
@api.model
def _exception_rule_eval_context ( self , obj_name , rec ) :
return {
' time ' : time ,
' self ' : rec ,
# obj_name, object, obj: deprecated.
# should be removed in future migrations
obj_name : rec ,
' object ' : rec ,
' obj ' : rec ,
# copy context to prevent side-effects of eval
# should be deprecated too, accesible through self.
' context ' : self . env . context . copy ( )
}
@api.model
def _rule_eval ( self , rule , obj_name , rec ) :
eval_ctx = self . _exception_rule_eval_context ( obj_name , rec )
try :
safe_eval ( rule . code , eval_ctx , mode = ' exec ' , nocopy = True )
except Exception as e :
raise UserError ( _ (
' Error when evaluating the exception.rule: '
' %s \n ( %s ) ' ) % ( rule . name , e ) )
return eval_ctx . get ( ' failed ' , False )
@api.multi
def _detect_exceptions (
self , model_exceptions , sub_exceptions ,
optimize = False ,
) :
""" Find exceptions found on self.
@returns
exception_by_rec : { record_id : exception_ids }
exception_by_rule : { rule_id : record_ids }
"""
exception_by_rec = { }
exception_by_rule = { }
exception_set = set ( )
python_rules = [ ]
dom_rules = [ ]
optim_rules = [ ]
for rule in model_exceptions :
if rule . exception_type == ' by_py_code ' :
python_rules . append ( rule )
elif rule . exception_type == ' by_domain ' and rule . domain :
if optimize :
optim_rules . append ( rule )
else :
dom_rules . append ( rule )
for rule in optim_rules :
domain = rule . _get_domain ( )
domain . append ( [ ' ignore_exception ' , ' = ' , False ] )
domain . append ( [ ' id ' , ' in ' , self . ids ] )
records_with_exception = self . search ( domain )
exception_by_rule [ rule ] = records_with_exception
if records_with_exception :
exception_set . add ( rule . id )
if len ( python_rules ) or len ( dom_rules ) or sub_exceptions :
for rec in self :
for rule in python_rules :
if (
not rec . ignore_exception and
self . _rule_eval ( rule , rec . rule_group , rec )
) :
exception_by_rec . setdefault ( rec , [ ] ) . append ( rule . id )
exception_set . add ( rule . id )
for rule in dom_rules :
# there is no reverse many2many, so this rule
# can't be optimized, see _reverse_field
domain = rule . _get_domain ( )
domain . append ( [ ' ignore_exception ' , ' = ' , False ] )
domain . append ( [ ' id ' , ' = ' , rec . id ] )
if self . search_count ( domain ) :
exception_by_rec . setdefault (
rec , [ ] ) . append ( rule . id )
exception_set . add ( rule . id )
if sub_exceptions :
group_line = rec . rule_group + ' _line '
for obj_line in rec . _get_lines ( ) :
for rule in sub_exceptions :
if rule . id in exception_set :
# we do not matter if the exception as
# already been
# found for an line of this object
# (ex sale order line if obj is sale order)
continue
if rule . exception_type == ' by_py_code ' :
if self . _rule_eval (
rule , group_line , obj_line
) :
exception_by_rec . setdefault (
rec , [ ] ) . append ( rule . id )
elif (
rule . exception_type == ' by_domain ' and
rule . domain
) :
# sub_exception are currently not optimizable
domain = rule . _get_domain ( )
domain . append ( ( ' id ' , ' = ' , obj_line . id ) )
if obj_line . search_count ( domain ) :
exception_by_rec . setdefault (
rec , [ ] ) . append ( rule . id )
# set object to next state
# find exception that raised error and has next_state
next_state_exception_ids = model_exceptions . filtered (
lambda r : r . id in exception_set and r . next_state )
if next_state_exception_ids :
self . state = next_state_exception_ids [ 0 ] . next_state
return exception_by_rec , exception_by_rule
@implemented_by_base_exception
def _get_lines ( self ) :
pass
def _default_get_lines ( self ) :
return [ ]
Florian da Costa
6 years ago