#!/usr/bin/env python
"""
camcops_server/tasks/dast.py
===============================================================================
Copyright (C) 2012, University of Cambridge, Department of Psychiatry.
Created by Rudolf Cardinal (rnc1001@cam.ac.uk).
This file is part of CamCOPS.
CamCOPS is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
CamCOPS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with CamCOPS. If not, see <https://www.gnu.org/licenses/>.
===============================================================================
"""
from typing import Any, Dict, List, Tuple, Type
from cardinal_pythonlib.stringfunc import strseq
from sqlalchemy.ext.declarative import DeclarativeMeta
from sqlalchemy.sql.sqltypes import Integer
from camcops_server.cc_modules.cc_constants import CssClass
from camcops_server.cc_modules.cc_ctvinfo import CTV_INCOMPLETE, CtvInfo
from camcops_server.cc_modules.cc_db import add_multiple_columns
from camcops_server.cc_modules.cc_html import answer, get_yes_no, tr, tr_qa
from camcops_server.cc_modules.cc_request import CamcopsRequest
from camcops_server.cc_modules.cc_snomed import SnomedExpression, SnomedLookup
from camcops_server.cc_modules.cc_sqla_coltypes import CharColType
from camcops_server.cc_modules.cc_summaryelement import SummaryElement
from camcops_server.cc_modules.cc_task import (
get_from_dict,
Task,
TaskHasPatientMixin,
)
from camcops_server.cc_modules.cc_text import SS
from camcops_server.cc_modules.cc_trackerhelpers import TrackerInfo
# =============================================================================
# DAST
# =============================================================================
class DastMetaclass(DeclarativeMeta):
# noinspection PyInitNewSignature
def __init__(
cls: Type["Dast"],
name: str,
bases: Tuple[Type, ...],
classdict: Dict[str, Any],
) -> None:
add_multiple_columns(
cls,
"q",
1,
cls.NQUESTIONS,
CharColType,
pv=["Y", "N"],
comment_fmt='Q{n}. {s} ("+" = Y scores 1, "-" = N scores 1)',
comment_strings=[
"non-medical drug use (+)",
"abused prescription drugs (+)",
"abused >1 drug at a time (+)",
"get through week without drugs (-)",
"stop when want to (-)",
"abuse drugs continuously (+)",
"try to limit to certain situations (-)",
"blackouts/flashbacks (+)",
"feel bad about drug abuse (-)",
"spouse/parents complain (+)",
"friends/relative know/suspect (+)",
"caused problems with spouse (+)",
"family sought help (+)",
"lost friends (+)",
"neglected family/missed work (+)",
"trouble at work (+)",
"lost job (+)",
"fights under influence (+)",
"arrested for unusual behaviour under influence (+)",
"arrested for driving under influence (+)",
"illegal activities to obtain (+)",
"arrested for possession (+)",
"withdrawal symptoms (+)",
"medical problems (+)",
"sought help (+)",
"hospital for medical problems (+)",
"drug treatment program (+)",
"outpatient treatment for drug abuse (+)",
],
)
super().__init__(name, bases, classdict)
[docs]class Dast(TaskHasPatientMixin, Task, metaclass=DastMetaclass):
"""
Server implementation of the DAST task.
"""
__tablename__ = "dast"
shortname = "DAST"
provides_trackers = True
prohibits_commercial = True
NQUESTIONS = 28
TASK_FIELDS = strseq("q", 1, NQUESTIONS)
[docs] @staticmethod
def longname(req: "CamcopsRequest") -> str:
_ = req.gettext
return _("Drug Abuse Screening Test")
[docs] def get_trackers(self, req: CamcopsRequest) -> List[TrackerInfo]:
return [
TrackerInfo(
value=self.total_score(),
plot_label="DAST total score",
axis_label=f"Total score (out of {self.NQUESTIONS})",
axis_min=-0.5,
axis_max=self.NQUESTIONS + 0.5,
horizontal_lines=[10.5, 5.5],
)
]
[docs] def get_clinical_text(self, req: CamcopsRequest) -> List[CtvInfo]:
if not self.is_complete():
return CTV_INCOMPLETE
return [
CtvInfo(
content=f"DAST total score "
f"{self.total_score()}/{self.NQUESTIONS}"
)
]
[docs] def get_summaries(self, req: CamcopsRequest) -> List[SummaryElement]:
return self.standard_task_summary_fields() + [
SummaryElement(
name="total",
coltype=Integer(),
value=self.total_score(),
comment="Total score",
)
]
[docs] def is_complete(self) -> bool:
return (
self.all_fields_not_none(Dast.TASK_FIELDS)
and self.field_contents_valid()
)
def get_score(self, q: int) -> int:
yes = "Y"
value = getattr(self, "q" + str(q))
if value is None:
return 0
if q == 4 or q == 5 or q == 7:
return 0 if value == yes else 1
else:
return 1 if value == yes else 0
def total_score(self) -> int:
total = 0
for q in range(1, Dast.NQUESTIONS + 1):
total += self.get_score(q)
return total
[docs] def get_task_html(self, req: CamcopsRequest) -> str:
score = self.total_score()
exceeds_cutoff_1 = score >= 6
exceeds_cutoff_2 = score >= 11
main_dict = {
None: None,
"Y": req.sstring(SS.YES),
"N": req.sstring(SS.NO),
}
q_a = ""
for q in range(1, Dast.NQUESTIONS + 1):
q_a += tr(
self.wxstring(req, "q" + str(q)),
answer(get_from_dict(main_dict, getattr(self, "q" + str(q))))
+ " — "
+ answer(str(self.get_score(q))),
)
h = """
<div class="{CssClass.SUMMARY}">
<table class="{CssClass.SUMMARY}">
{tr_is_complete}
{total_score}
{exceeds_standard_cutoff_1}
{exceeds_standard_cutoff_2}
</table>
</div>
<table class="{CssClass.TASKDETAIL}">
<tr>
<th width="80%">Question</th>
<th width="20%">Answer</th>
</tr>
{q_a}
</table>
<div class="{CssClass.COPYRIGHT}">
DAST: Copyright © Harvey A. Skinner and the Centre for
Addiction and Mental Health, Toronto, Canada.
Reproduced here under the permissions granted for
NON-COMMERCIAL use only. You must obtain permission from the
copyright holder for any other use.
</div>
""".format(
CssClass=CssClass,
tr_is_complete=self.get_is_complete_tr(req),
total_score=tr(
req.sstring(SS.TOTAL_SCORE),
answer(score) + f" / {self.NQUESTIONS}",
),
exceeds_standard_cutoff_1=tr_qa(
self.wxstring(req, "exceeds_standard_cutoff_1"),
get_yes_no(req, exceeds_cutoff_1),
),
exceeds_standard_cutoff_2=tr_qa(
self.wxstring(req, "exceeds_standard_cutoff_2"),
get_yes_no(req, exceeds_cutoff_2),
),
q_a=q_a,
)
return h
[docs] def get_snomed_codes(self, req: CamcopsRequest) -> List[SnomedExpression]:
if not self.is_complete():
return []
return [SnomedExpression(req.snomed(SnomedLookup.DAST_SCALE))]