server-ux/base_tier_validation/models/tier_validation.py

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# Copyright 2017-19 ForgeFlow S.L. (https://www.forgeflow.com)
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
from ast import literal_eval
from lxml import etree
from flectra import _, api, fields, models
from flectra.exceptions import ValidationError
from flectra.osv import expression
class TierValidation(models.AbstractModel):
_name = "tier.validation"
_description = "Tier Validation (abstract)"
_tier_validation_buttons_xpath = "/form/header/button[last()]"
_tier_validation_manual_config = True
_state_field = "state"
_state_from = ["draft"]
_state_to = ["confirmed"]
_cancel_state = "cancel"
# TODO: step by step validation?
review_ids = fields.One2many(
comodel_name="tier.review",
inverse_name="res_id",
string="Validations",
domain=lambda self: [("model", "=", self._name)],
auto_join=True,
)
validated = fields.Boolean(
compute="_compute_validated_rejected", search="_search_validated"
)
need_validation = fields.Boolean(compute="_compute_need_validation")
rejected = fields.Boolean(
compute="_compute_validated_rejected", search="_search_rejected"
)
reviewer_ids = fields.Many2many(
string="Reviewers",
comodel_name="res.users",
compute="_compute_reviewer_ids",
search="_search_reviewer_ids",
)
can_review = fields.Boolean(
compute="_compute_can_review", search="_search_can_review"
)
has_comment = fields.Boolean(compute="_compute_has_comment")
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next_review = fields.Char(compute="_compute_next_review")
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def _compute_has_comment(self):
for rec in self:
has_comment = rec.review_ids.filtered(
lambda r: r.status == "pending" and (self.env.user in r.reviewer_ids)
).mapped("has_comment")
rec.has_comment = True in has_comment
def _get_sequences_to_approve(self, user):
all_reviews = self.review_ids.filtered(lambda r: r.status == "pending")
my_reviews = all_reviews.filtered(lambda r: user in r.reviewer_ids)
# Include all my_reviews with approve_sequence = False
sequences = my_reviews.filtered(lambda r: not r.approve_sequence).mapped(
"sequence"
)
# Include only my_reviews with approve_sequence = True
approve_sequences = my_reviews.filtered("approve_sequence").mapped("sequence")
if approve_sequences:
my_sequence = min(approve_sequences)
min_sequence = min(all_reviews.mapped("sequence"))
if my_sequence <= min_sequence:
sequences.append(my_sequence)
return sequences
def _compute_can_review(self):
for rec in self:
rec.can_review = rec._get_sequences_to_approve(self.env.user)
@api.model
def _search_can_review(self, operator, value):
res_ids = (
self.search(
[
("review_ids.reviewer_ids", "=", self.env.user.id),
("review_ids.status", "=", "pending"),
("review_ids.can_review", "=", True),
("rejected", "=", False),
]
)
.filtered("can_review")
.ids
)
return [("id", "in", res_ids)]
@api.depends("review_ids")
def _compute_reviewer_ids(self):
for rec in self:
rec.reviewer_ids = rec.review_ids.filtered(
lambda r: r.status == "pending"
).mapped("reviewer_ids")
@api.model
def _search_validated(self, operator, value):
assert operator in ("=", "!="), "Invalid domain operator"
assert value in (True, False), "Invalid domain value"
pos = self.search([(self._state_field, "in", self._state_from)]).filtered(
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lambda r: r.validated
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)
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if value:
return [("id", "in", pos.ids)]
else:
return [("id", "not in", pos.ids)]
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@api.model
def _search_rejected(self, operator, value):
assert operator in ("=", "!="), "Invalid domain operator"
assert value in (True, False), "Invalid domain value"
pos = self.search([(self._state_field, "in", self._state_from)]).filtered(
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lambda r: r.rejected
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)
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if value:
return [("id", "in", pos.ids)]
else:
return [("id", "not in", pos.ids)]
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@api.model
def _search_reviewer_ids(self, operator, value):
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model_operator = "in"
if operator == "=" and value in ("[]", False):
# Search for records that have not yet been through a validation
# process.
operator = "!="
model_operator = "not in"
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reviews = self.env["tier.review"].search(
[
("model", "=", self._name),
("reviewer_ids", operator, value),
("can_review", "=", True),
("status", "=", "pending"),
]
)
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return [("id", model_operator, list(set(reviews.mapped("res_id"))))]
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def _compute_validated_rejected(self):
for rec in self:
rec.validated = self._calc_reviews_validated(rec.review_ids)
rec.rejected = self._calc_reviews_rejected(rec.review_ids)
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def _compute_next_review(self):
for rec in self:
review = rec.review_ids.sorted("sequence").filtered(
lambda l: l.status == "pending"
)[:1]
rec.next_review = review and _("Next: %s") % review.name or ""
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@api.model
def _calc_reviews_validated(self, reviews):
"""Override for different validation policy."""
if not reviews:
return False
return not any([s != "approved" for s in reviews.mapped("status")])
@api.model
def _calc_reviews_rejected(self, reviews):
"""Override for different rejection policy."""
return any([s == "rejected" for s in reviews.mapped("status")])
def _compute_need_validation(self):
for rec in self:
if isinstance(rec.id, models.NewId):
rec.need_validation = False
continue
tiers = self.env["tier.definition"].search([("model", "=", self._name)])
valid_tiers = any([rec.evaluate_tier(tier) for tier in tiers])
rec.need_validation = (
not rec.review_ids
and valid_tiers
and getattr(rec, self._state_field) in self._state_from
)
def evaluate_tier(self, tier):
domain = []
if tier.definition_domain:
domain = literal_eval(tier.definition_domain)
return self.search(expression.AND([[("id", "=", self.id)], domain]))
@api.model
def _get_under_validation_exceptions(self):
"""Extend for more field exceptions."""
return ["message_follower_ids", "access_token"]
def _check_allow_write_under_validation(self, vals):
"""Allow to add exceptions for fields that are allowed to be written
even when the record is under validation."""
exceptions = self._get_under_validation_exceptions()
for val in vals:
if val not in exceptions:
return False
return True
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def _check_tier_state_transition(self, vals):
"""
Check we are in origin state and not destination state
"""
self.ensure_one()
return getattr(self, self._state_field) in self._state_from and not vals.get(
self._state_field
) in (self._state_to + [self._cancel_state])
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def write(self, vals):
for rec in self:
if rec._check_state_conditions(vals):
if rec.need_validation:
# try to validate operation
reviews = rec.request_validation()
rec._validate_tier(reviews)
if not self._calc_reviews_validated(reviews):
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pending_reviews = reviews.filtered(
lambda r: r.status == "pending"
).mapped("name")
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raise ValidationError(
_(
"This action needs to be validated for at least "
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"one record. Reviews pending:\n - %s "
"\nPlease request a validation."
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)
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% "\n - ".join(pending_reviews)
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)
if rec.review_ids and not rec.validated:
raise ValidationError(
_(
"A validation process is still open for at least "
"one record."
)
)
if (
rec.review_ids
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and rec._check_tier_state_transition(vals)
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and not rec._check_allow_write_under_validation(vals)
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):
raise ValidationError(_("The operation is under validation."))
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if vals.get(self._state_field) in (self._state_from + [self._cancel_state]):
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self.mapped("review_ids").unlink()
return super(TierValidation, self).write(vals)
def _check_state_conditions(self, vals):
self.ensure_one()
return (
getattr(self, self._state_field) in self._state_from
and vals.get(self._state_field) in self._state_to
)
def _validate_tier(self, tiers=False):
self.ensure_one()
tier_reviews = tiers or self.review_ids
user_reviews = tier_reviews.filtered(
lambda r: r.status == "pending" and (self.env.user in r.reviewer_ids)
)
user_reviews.write(
{
"status": "approved",
"done_by": self.env.user.id,
"reviewed_date": fields.Datetime.now(),
}
)
for review in user_reviews:
rec = self.env[review.model].browse(review.res_id)
rec._notify_accepted_reviews()
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def _get_requested_notification_subtype(self):
return "base_tier_validation.mt_tier_validation_requested"
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def _get_accepted_notification_subtype(self):
return "base_tier_validation.mt_tier_validation_accepted"
def _get_rejected_notification_subtype(self):
return "base_tier_validation.mt_tier_validation_rejected"
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def _get_restarted_notification_subtype(self):
return "base_tier_validation.mt_tier_validation_restarted"
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def _notify_accepted_reviews(self):
post = "message_post"
if hasattr(self, post):
# Notify state change
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getattr(self.sudo(), post)(
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subtype_xmlid=self._get_accepted_notification_subtype(),
body=self._notify_accepted_reviews_body(),
)
def _notify_accepted_reviews_body(self):
has_comment = self.review_ids.filtered(
lambda r: (self.env.user in r.reviewer_ids) and r.comment
)
if has_comment:
comment = has_comment.mapped("comment")[0]
return _("A review was accepted. (%s)" % comment)
return _("A review was accepted")
def _add_comment(self, validate_reject, reviews):
wizard = self.env.ref("base_tier_validation.view_comment_wizard")
return {
"name": _("Comment"),
"type": "ir.actions.act_window",
"view_mode": "form",
"res_model": "comment.wizard",
"views": [(wizard.id, "form")],
"view_id": wizard.id,
"target": "new",
"context": {
"default_res_id": self.id,
"default_res_model": self._name,
"default_review_ids": reviews.ids,
"default_validate_reject": validate_reject,
},
}
def validate_tier(self):
self.ensure_one()
sequences = self._get_sequences_to_approve(self.env.user)
reviews = self.review_ids.filtered(lambda l: l.sequence in sequences)
if self.has_comment:
return self._add_comment("validate", reviews)
self._validate_tier(reviews)
self._update_counter()
def reject_tier(self):
self.ensure_one()
sequences = self._get_sequences_to_approve(self.env.user)
reviews = self.review_ids.filtered(lambda l: l.sequence in sequences)
if self.has_comment:
return self._add_comment("reject", reviews)
self._rejected_tier(reviews)
self._update_counter()
def _notify_rejected_review_body(self):
has_comment = self.review_ids.filtered(
lambda r: (self.env.user in r.reviewer_ids) and r.comment
)
if has_comment:
comment = has_comment.mapped("comment")[0]
return _(
"A review was rejected by {}. ({})".format(self.env.user.name, comment)
)
return _("A review was rejected by %s.") % (self.env.user.name)
def _notify_rejected_review(self):
post = "message_post"
if hasattr(self, post):
# Notify state change
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getattr(self.sudo(), post)(
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subtype_xmlid=self._get_rejected_notification_subtype(),
body=self._notify_rejected_review_body(),
)
def _rejected_tier(self, tiers=False):
self.ensure_one()
tier_reviews = tiers or self.review_ids
user_reviews = tier_reviews.filtered(
lambda r: r.status == "pending" and (self.env.user in r.reviewer_ids)
)
user_reviews.write(
{
"status": "rejected",
"done_by": self.env.user.id,
"reviewed_date": fields.Datetime.now(),
}
)
for review in user_reviews:
rec = self.env[review.model].browse(review.res_id)
rec._notify_rejected_review()
def _notify_requested_review_body(self):
return _("A review has been requested by %s.") % (self.env.user.name)
def _notify_review_requested(self, tier_reviews):
subscribe = "message_subscribe"
post = "message_post"
if hasattr(self, post) and hasattr(self, subscribe):
for rec in self:
users_to_notify = tier_reviews.filtered(
lambda r: r.definition_id.notify_on_create and r.res_id == rec.id
).mapped("reviewer_ids")
# Subscribe reviewers and notify
getattr(rec, subscribe)(
partner_ids=users_to_notify.mapped("partner_id").ids
)
getattr(rec, post)(
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subtype_xmlid=self._get_requested_notification_subtype(),
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body=rec._notify_requested_review_body(),
)
def request_validation(self):
td_obj = self.env["tier.definition"]
tr_obj = created_trs = self.env["tier.review"]
for rec in self:
if getattr(rec, self._state_field) in self._state_from:
if rec.need_validation:
tier_definitions = td_obj.search(
[("model", "=", self._name)], order="sequence desc"
)
sequence = 0
for td in tier_definitions:
if rec.evaluate_tier(td):
sequence += 1
created_trs += tr_obj.create(
{
"model": self._name,
"res_id": rec.id,
"definition_id": td.id,
"sequence": sequence,
"requested_by": self.env.uid,
}
)
self._update_counter()
self._notify_review_requested(created_trs)
return created_trs
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def _notify_restarted_review_body(self):
return _("The review has been reset by %s.") % (self.env.user.name)
def _notify_restarted_review(self):
post = "message_post"
if hasattr(self, post):
getattr(self.sudo(), post)(
subtype_xmlid=self._get_restarted_notification_subtype(),
body=self._notify_restarted_review_body(),
)
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def restart_validation(self):
for rec in self:
if getattr(rec, self._state_field) in self._state_from:
rec.mapped("review_ids").unlink()
self._update_counter()
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rec._notify_restarted_review()
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@api.model
def _update_counter(self):
self.review_ids._compute_can_review()
notifications = []
channel = "base.tier.validation"
notifications.append([channel, {}])
self.env["bus.bus"].sendmany(notifications)
def unlink(self):
self.mapped("review_ids").unlink()
return super().unlink()
@api.model
def fields_view_get(
self, view_id=None, view_type="form", toolbar=False, submenu=False
):
res = super().fields_view_get(
view_id=view_id, view_type=view_type, toolbar=toolbar, submenu=submenu
)
if view_type == "form" and not self._tier_validation_manual_config:
doc = etree.XML(res["arch"])
params = {
"state_field": self._state_field,
"state_from": ",".join("'%s'" % state for state in self._state_from),
}
for node in doc.xpath(self._tier_validation_buttons_xpath):
# By default, after the last button of the header
str_element = self.env["ir.qweb"]._render(
"base_tier_validation.tier_validation_buttons", params
)
new_node = etree.fromstring(str_element)
for new_element in new_node:
node.addnext(new_element)
for node in doc.xpath("/form/sheet"):
str_element = self.env["ir.qweb"]._render(
"base_tier_validation.tier_validation_label", params
)
new_node = etree.fromstring(str_element)
for new_element in new_node:
node.addprevious(new_element)
str_element = self.env["ir.qweb"]._render(
"base_tier_validation.tier_validation_reviews", params
)
node.addnext(etree.fromstring(str_element))
View = self.env["ir.ui.view"]
# Override context for postprocessing
if view_id and res.get("base_model", self._name) != self._name:
View = View.with_context(base_model_name=res["base_model"])
new_arch, new_fields = View.postprocess_and_fields(doc, self._name)
res["arch"] = new_arch
# We don't want to loose previous configuration, so, we only want to add
# the new fields
new_fields.update(res["fields"])
res["fields"] = new_fields
return res