Module Gnumed.business.gmProviderInbox

GNUmed provider inbox middleware.

This should eventually end up in a class cPractice.

Expand source code
# -*- coding: latin-1 -*-
"""GNUmed provider inbox middleware.

This should eventually end up in a class cPractice.
"""
#============================================================
__license__ = "GPL"
__author__ = "K.Hilbert <Karsten.Hilbert@gmx.net>"


import sys
import logging


if __name__ == '__main__':
        sys.path.insert(0, '../../')
        _ = lambda x:x
from Gnumed.pycommon import gmPG2
from Gnumed.pycommon import gmBusinessDBObject
from Gnumed.pycommon import gmTools
from Gnumed.pycommon import gmDateTime

from Gnumed.business import gmStaff

_log = logging.getLogger('gm.inbox')

#============================================================
# provider message inbox
#------------------------------------------------------------
_SQL_get_inbox_messages = """SELECT * FROM dem.v_message_inbox d_vi WHERE %s"""

class cInboxMessage(gmBusinessDBObject.cBusinessDBObject):

        _cmd_fetch_payload = _SQL_get_inbox_messages % "pk_inbox_message = %s"
        _cmds_store_payload = [
                """
                        UPDATE dem.message_inbox SET
                                fk_staff = %(pk_staff)s,
                                fk_inbox_item_type = %(pk_type)s,
                                comment = gm.nullify_empty_string(%(comment)s),
                                data = gm.nullify_empty_string(%(data)s),
                                importance = %(importance)s,
                                fk_patient = %(pk_patient)s,
                                ufk_context = NULLIF(%(pk_context)s::integer[], ARRAY[NULL::integer]),
                                due_date = %(due_date)s,
                                expiry_date = %(expiry_date)s
                        WHERE
                                pk = %(pk_inbox_message)s
                                        AND
                                xmin = %(xmin_message_inbox)s
                        RETURNING
                                pk as pk_inbox_message,
                                xmin as xmin_message_inbox
                """
        ]
        _updatable_fields = [
                'pk_staff',
                'pk_type',
                'comment',
                'data',
                'importance',
                'pk_patient',
                'pk_context',
                'due_date',
                'expiry_date'
        ]
        #------------------------------------------------------------
        def format(self, with_patient=True):
                tt = '%s: %s%s\n' % (
                        gmDateTime.pydt_strftime (
                                self._payload['received_when'],
                                format = '%A, %Y %b %d, %H:%M',
                                accuracy = gmDateTime.acc_minutes
                        ),
                        gmTools.bool2subst(self._payload['is_virtual'], _('virtual message'), _('message')),
                        gmTools.coalesce(self._payload['pk_inbox_message'], '', ' #%s ')
                )

                tt += '%s: %s\n' % (
                        self._payload['l10n_category'],
                        self._payload['l10n_type']
                )

                tt += '%s %s %s\n' % (
                        self._payload['modified_by'],
                        gmTools.u_arrow2right,
                        gmTools.coalesce(self._payload['provider'], _('everyone'))
                )

                tt += '\n%s%s%s\n\n' % (
                        gmTools.u_left_double_angle_quote,
                        self._payload['comment'],
                        gmTools.u_right_double_angle_quote
                )

                if with_patient and (self._payload['pk_patient'] is not None):
                        tt += _('Patient: %s, %s%s %s   #%s\n' % (
                                self._payload['lastnames'],
                                self._payload['firstnames'],
                                gmTools.coalesce(self._payload['l10n_gender'], '', ' (%s)'),
                                gmDateTime.pydt_strftime(self._payload['dob'], '%Y %b %d', none_str = ''),
                                self._payload['pk_patient']
                        ))

                if self._payload['due_date'] is not None:
                        if self._payload['is_overdue']:
                                template = _('Due: %s (%s ago)\n')
                        else:
                                template = _('Due: %s (in %s)\n')
                        tt += template % (
                                gmDateTime.pydt_strftime(self._payload['due_date'], '%Y %b %d'),
                                gmDateTime.format_interval_medically(self._payload['interval_due'])
                        )

                if self._payload['expiry_date'] is not None:
                        if self._payload['is_expired']:
                                template = _('Expired: %s\n')
                        else:
                                template = _('Expires: %s\n')
                        tt += template % gmDateTime.pydt_strftime(self._payload['expiry_date'], '%Y %b %d')

                if self._payload['data'] is not None:
                        tt += self._payload['data'][:150]
                        if len(self._payload['data']) > 150:
                                tt += gmTools.u_ellipsis

                return tt
#------------------------------------------------------------
def get_reminders(pk_patient=None, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY due_date, importance DESC, received_when DESC'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {'pat': pk_patient}
        where_parts = [
                'pk_patient = %(pat)s',
                'due_date IS NOT NULL'
        ]

        cmd = "SELECT * FROM dem.v_message_inbox WHERE %s" % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]

#------------------------------------------------------------
def get_overdue_messages(pk_patient=None, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY due_date, importance DESC, received_when DESC'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {'pat': pk_patient}
        where_parts = [
                'pk_patient = %(pat)s',
                'is_overdue IS TRUE'
        ]

        cmd = "SELECT * FROM dem.v_message_inbox WHERE %s" % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]

#------------------------------------------------------------
def get_relevant_messages(pk_staff=None, pk_patient=None, include_without_provider=False, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY importance desc, received_when desc'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {}
        where_parts = []

        if pk_staff is not None:
                if include_without_provider:
                        where_parts.append('((pk_staff IN (%(staff)s, NULL)) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                else:
                        where_parts.append('((pk_staff = %(staff)s) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                args['staff'] = pk_staff

        if pk_patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = pk_patient

        where_parts.append("""
                -- messages which have no due date and are not expired
                ((due_date IS NULL) AND ((expiry_date IS NULL) OR (expiry_date > now())))
                        OR
                -- messages which are due and not expired
                ((due_date IS NOT NULL) AND (due_date < now()) AND ((expiry_date IS NULL) OR (expiry_date > now())))
        """)

        cmd = _SQL_get_inbox_messages % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]

#------------------------------------------------------------
def get_inbox_messages(pk_staff=None, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY importance desc, received_when desc'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {}
        where_parts = []

        if pk_staff is not None:
                if include_without_provider:
                        where_parts.append('((pk_staff IN (%(staff)s, NULL)) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                else:
                        where_parts.append('((pk_staff = %(staff)s) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                args['staff'] = pk_staff

        if pk_patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = pk_patient

        if exclude_expired:
                where_parts.append('is_expired IS FALSE')

        if expired_only:
                where_parts.append('is_expired IS TRUE')

        if overdue_only:
                where_parts.append('is_overdue IS TRUE')

        if unscheduled_only:
                where_parts.append('due_date IS NULL')

        if exclude_unscheduled:
                where_parts.append('due_date IS NOT NULL')

        cmd = _SQL_get_inbox_messages % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]

#------------------------------------------------------------
def create_inbox_message(message_type=None, subject=None, patient=None, staff=None, message_category='clinical'):

        success, pk_type = gmTools.input2int(initial = message_type)
        if not success:
                pk_type = create_inbox_item_type(message_type = message_type, category = message_category)

        cmd = """
                INSERT INTO dem.message_inbox (
                        fk_staff,
                        fk_patient,
                        fk_inbox_item_type,
                        comment
                ) VALUES (
                        %(staff)s,
                        %(pat)s,
                        %(type)s,
                        gm.nullify_empty_string(%(subject)s)
                )
                RETURNING pk
        """
        args = {
                'staff': staff,
                'pat': patient,
                'type': pk_type,
                'subject': subject
        }
        rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)
        return cInboxMessage(aPK_obj = rows[0]['pk'])

#------------------------------------------------------------
def delete_inbox_message(inbox_message=None):
        args = {'pk': inbox_message}
        cmd = "DELETE FROM dem.message_inbox WHERE pk = %(pk)s"
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
        return True

#------------------------------------------------------------
def create_inbox_item_type(message_type=None, category='clinical'):

        # determine category PK
        success, pk_cat = gmTools.input2int(initial = category)
        if not success:
                args = {'cat': category}
                cmd = """SELECT COALESCE (
                        (SELECT pk FROM dem.inbox_item_category WHERE _(description) = %(cat)s),
                        (SELECT pk FROM dem.inbox_item_category WHERE description = %(cat)s)
                ) AS pk"""
                rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                if rows[0]['pk'] is None:
                        cmd = "INSERT INTO dem.inbox_item_category (description) VALUES (%(cat)s) RETURNING pk"
                        rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)
                        pk_cat = rows[0]['pk']
                else:
                        pk_cat = rows[0]['pk']

        # find type PK or create type
        args = {'pk_cat': pk_cat, 'type': message_type}
        cmd = """SELECT COALESCE (
                (SELECT pk FROM dem.inbox_item_type where fk_inbox_item_category = %(pk_cat)s AND _(description) = %(type)s),
                (SELECT pk FROM dem.inbox_item_type where fk_inbox_item_category = %(pk_cat)s AND description = %(type)s)
        ) AS pk"""
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if rows[0]['pk'] is None:
                cmd = """
                        INSERT INTO dem.inbox_item_type (
                                fk_inbox_item_category,
                                description,
                                is_user
                        ) VALUES (
                                %(pk_cat)s,
                                %(type)s,
                                TRUE
                        ) RETURNING pk"""
                rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)

        return rows[0]['pk']

#============================================================
class cProviderInbox:
        def __init__(self, provider_id=None):
                if provider_id is None:
                        self.__provider_id = gmStaff.gmCurrentProvider()['pk_staff']
                else:
                        self.__provider_id = provider_id
        #--------------------------------------------------------
        def delete_message(self, pk=None):
                return delete_inbox_message(inbox_message = pk)

        #--------------------------------------------------------
        def add_message(self, message_type=None, subject=None, patient=None):
                return create_inbox_message (
                        message_type = message_type,
                        subject = subject,
                        patient = patient,
                        staff = self.__provider_id
                )

        #--------------------------------------------------------
        # properties
        #--------------------------------------------------------
        def get_messages(self, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None):
                return get_inbox_messages (
                        pk_staff = self.__provider_id,
                        pk_patient = pk_patient,
                        include_without_provider = include_without_provider,
                        exclude_expired = exclude_expired,
                        expired_only = expired_only,
                        overdue_only = overdue_only,
                        unscheduled_only = unscheduled_only,
                        exclude_unscheduled = exclude_unscheduled,
                        order_by = order_by
                )

        messages = property(get_messages)

        #--------------------------------------------------------
        def get_relevant_messages(self, pk_patient=None, include_without_provider=True):
                return get_relevant_messages (
                        pk_staff = self.__provider_id,
                        pk_patient = pk_patient,
                        include_without_provider = include_without_provider
                )

#============================================================
if __name__ == '__main__':

        if len(sys.argv) < 2:
                sys.exit()

        if sys.argv[1] != 'test':
                sys.exit()

        from Gnumed.pycommon import gmI18N

        gmI18N.activate_locale()
        gmI18N.install_domain()

        #---------------------------------------
        def test_inbox():
                gmStaff.gmCurrentProvider(provider = gmStaff.cStaff())
                inbox = cProviderInbox()
                for msg in inbox.messages:
                        print(msg)
        #---------------------------------------
        def test_msg():
                msg = cInboxMessage(aPK_obj = 1)
                print(msg)
        #---------------------------------------
        def test_create_type():
                print(create_inbox_item_type(message_type = 'test'))
        #---------------------------------------
        def test_due():
                for msg in get_overdue_messages(pk_patient = 12):
                        print(msg.format())
        #---------------------------------------
        #test_inbox()
        #test_msg()
        #test_create_type()
        #test_due()

#============================================================

Functions

def create_inbox_item_type(message_type=None, category='clinical')
Expand source code
def create_inbox_item_type(message_type=None, category='clinical'):

        # determine category PK
        success, pk_cat = gmTools.input2int(initial = category)
        if not success:
                args = {'cat': category}
                cmd = """SELECT COALESCE (
                        (SELECT pk FROM dem.inbox_item_category WHERE _(description) = %(cat)s),
                        (SELECT pk FROM dem.inbox_item_category WHERE description = %(cat)s)
                ) AS pk"""
                rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                if rows[0]['pk'] is None:
                        cmd = "INSERT INTO dem.inbox_item_category (description) VALUES (%(cat)s) RETURNING pk"
                        rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)
                        pk_cat = rows[0]['pk']
                else:
                        pk_cat = rows[0]['pk']

        # find type PK or create type
        args = {'pk_cat': pk_cat, 'type': message_type}
        cmd = """SELECT COALESCE (
                (SELECT pk FROM dem.inbox_item_type where fk_inbox_item_category = %(pk_cat)s AND _(description) = %(type)s),
                (SELECT pk FROM dem.inbox_item_type where fk_inbox_item_category = %(pk_cat)s AND description = %(type)s)
        ) AS pk"""
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if rows[0]['pk'] is None:
                cmd = """
                        INSERT INTO dem.inbox_item_type (
                                fk_inbox_item_category,
                                description,
                                is_user
                        ) VALUES (
                                %(pk_cat)s,
                                %(type)s,
                                TRUE
                        ) RETURNING pk"""
                rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)

        return rows[0]['pk']
def create_inbox_message(message_type=None, subject=None, patient=None, staff=None, message_category='clinical')
Expand source code
def create_inbox_message(message_type=None, subject=None, patient=None, staff=None, message_category='clinical'):

        success, pk_type = gmTools.input2int(initial = message_type)
        if not success:
                pk_type = create_inbox_item_type(message_type = message_type, category = message_category)

        cmd = """
                INSERT INTO dem.message_inbox (
                        fk_staff,
                        fk_patient,
                        fk_inbox_item_type,
                        comment
                ) VALUES (
                        %(staff)s,
                        %(pat)s,
                        %(type)s,
                        gm.nullify_empty_string(%(subject)s)
                )
                RETURNING pk
        """
        args = {
                'staff': staff,
                'pat': patient,
                'type': pk_type,
                'subject': subject
        }
        rows = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)
        return cInboxMessage(aPK_obj = rows[0]['pk'])
def delete_inbox_message(inbox_message=None)
Expand source code
def delete_inbox_message(inbox_message=None):
        args = {'pk': inbox_message}
        cmd = "DELETE FROM dem.message_inbox WHERE pk = %(pk)s"
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
        return True
def get_inbox_messages(pk_staff=None, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None, return_pks=False)
Expand source code
def get_inbox_messages(pk_staff=None, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY importance desc, received_when desc'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {}
        where_parts = []

        if pk_staff is not None:
                if include_without_provider:
                        where_parts.append('((pk_staff IN (%(staff)s, NULL)) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                else:
                        where_parts.append('((pk_staff = %(staff)s) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                args['staff'] = pk_staff

        if pk_patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = pk_patient

        if exclude_expired:
                where_parts.append('is_expired IS FALSE')

        if expired_only:
                where_parts.append('is_expired IS TRUE')

        if overdue_only:
                where_parts.append('is_overdue IS TRUE')

        if unscheduled_only:
                where_parts.append('due_date IS NULL')

        if exclude_unscheduled:
                where_parts.append('due_date IS NOT NULL')

        cmd = _SQL_get_inbox_messages % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]
def get_overdue_messages(pk_patient=None, order_by=None, return_pks=False)
Expand source code
def get_overdue_messages(pk_patient=None, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY due_date, importance DESC, received_when DESC'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {'pat': pk_patient}
        where_parts = [
                'pk_patient = %(pat)s',
                'is_overdue IS TRUE'
        ]

        cmd = "SELECT * FROM dem.v_message_inbox WHERE %s" % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]
def get_relevant_messages(pk_staff=None, pk_patient=None, include_without_provider=False, order_by=None, return_pks=False)
Expand source code
def get_relevant_messages(pk_staff=None, pk_patient=None, include_without_provider=False, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY importance desc, received_when desc'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {}
        where_parts = []

        if pk_staff is not None:
                if include_without_provider:
                        where_parts.append('((pk_staff IN (%(staff)s, NULL)) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                else:
                        where_parts.append('((pk_staff = %(staff)s) OR (modified_by = (SELECT short_alias FROM dem.staff WHERE pk = %(staff)s)))')
                args['staff'] = pk_staff

        if pk_patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = pk_patient

        where_parts.append("""
                -- messages which have no due date and are not expired
                ((due_date IS NULL) AND ((expiry_date IS NULL) OR (expiry_date > now())))
                        OR
                -- messages which are due and not expired
                ((due_date IS NOT NULL) AND (due_date < now()) AND ((expiry_date IS NULL) OR (expiry_date > now())))
        """)

        cmd = _SQL_get_inbox_messages % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]
def get_reminders(pk_patient=None, order_by=None, return_pks=False)
Expand source code
def get_reminders(pk_patient=None, order_by=None, return_pks=False):

        if order_by is None:
                order_by = '%s ORDER BY due_date, importance DESC, received_when DESC'
        else:
                order_by = '%%s ORDER BY %s' % order_by

        args = {'pat': pk_patient}
        where_parts = [
                'pk_patient = %(pat)s',
                'due_date IS NOT NULL'
        ]

        cmd = "SELECT * FROM dem.v_message_inbox WHERE %s" % (
                order_by % ' AND '.join(where_parts)
        )
        _log.debug('SQL: %s', cmd)
        _log.debug('args: %s', args)
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        if return_pks:
                return [ r['pk_inbox_message'] for r in rows ]
        return [ cInboxMessage(row = {'data': r, 'pk_field': 'pk_inbox_message'}) for r in rows ]

Classes

class cInboxMessage (aPK_obj: int | dict = None, row: dict = None, link_obj=None)

Represents business objects in the database.

Rules

  • instances ARE ASSUMED TO EXIST in the database
  • PK construction (aPK_obj): DOES verify its existence on instantiation (fetching data fails)
  • Row construction (row): allowed by using a dict of pairs of field name: field value (PERFORMANCE improvement)
  • does NOT verify FK target existence
  • does NOT create new entries in the database
  • does NOT lazy-fetch fields on access

Class scope SQL commands and variables:

_cmd_fetch_payload:

  • must return exactly one row
  • WHERE clause argument values are expected in self.pk_obj (taken from init(aPK_obj))
  • must return xmin of all rows that _cmds_store_payload will be updating, so views must support the xmin columns of their underlying tables

_cmds_store_payload:

  • one or multiple "update … set … where xmin_ = … and pk = …" statements which actually update the database from the data in self._payload,
  • the last query must refetch at least the XMIN values needed to detect concurrent updates, their field names had better be the same as in _cmd_fetch_payload,
  • the last query CAN return other fields which is particularly useful when those other fields are computed in the backend and may thus change upon save but will not have been set by the client code explicitly - this is only really of concern if the saved subclass is to be reused after saving rather than re-instantiated
  • when subclasses tend to live a while after save_payload() was called and they support computed fields (say, _(some_column) you need to return all columns (see cEncounter)

_updatable_fields:

  • a list of fields available for update via object['field']

Call init from child classes like so:

    super().__init__(aPK_obj = aPK_obj, row = row, link_obj = link_obj)

Args

aPK_obj
retrieve data from backend
  • an scalar value the ._cmd_fetch_payload WHERE condition must be a simple column: "… WHERE pk_col = %s"
  • a dictionary of values the ._cmd_fetch_payload WHERE condition must consume the dictionary and produce a unique row
row
must hold the fields
  • data: list of column values for the row selected by ._cmd_fetch_payload (as returned by cursor.fetchone() in the DB-API)
  • pk_field: the name of the primary key column OR
  • pk_obj: a dictionary suitable for being passed to cursor.execute and holding the primary key values, used for composite PKs
  • for example:
    row = {
            'data': rows[0],
            'pk_field': 'pk_XXX (the PK column name)',
            'pk_obj': {'pk_col1': pk_col1_val, 'pk_col2': pk_col2_val}
    }
    
    rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
    objects = [ cChildClass(row = {'data': r, 'pk_field': 'the PK column name'}) for r in rows ]
    
Expand source code
class cInboxMessage(gmBusinessDBObject.cBusinessDBObject):

        _cmd_fetch_payload = _SQL_get_inbox_messages % "pk_inbox_message = %s"
        _cmds_store_payload = [
                """
                        UPDATE dem.message_inbox SET
                                fk_staff = %(pk_staff)s,
                                fk_inbox_item_type = %(pk_type)s,
                                comment = gm.nullify_empty_string(%(comment)s),
                                data = gm.nullify_empty_string(%(data)s),
                                importance = %(importance)s,
                                fk_patient = %(pk_patient)s,
                                ufk_context = NULLIF(%(pk_context)s::integer[], ARRAY[NULL::integer]),
                                due_date = %(due_date)s,
                                expiry_date = %(expiry_date)s
                        WHERE
                                pk = %(pk_inbox_message)s
                                        AND
                                xmin = %(xmin_message_inbox)s
                        RETURNING
                                pk as pk_inbox_message,
                                xmin as xmin_message_inbox
                """
        ]
        _updatable_fields = [
                'pk_staff',
                'pk_type',
                'comment',
                'data',
                'importance',
                'pk_patient',
                'pk_context',
                'due_date',
                'expiry_date'
        ]
        #------------------------------------------------------------
        def format(self, with_patient=True):
                tt = '%s: %s%s\n' % (
                        gmDateTime.pydt_strftime (
                                self._payload['received_when'],
                                format = '%A, %Y %b %d, %H:%M',
                                accuracy = gmDateTime.acc_minutes
                        ),
                        gmTools.bool2subst(self._payload['is_virtual'], _('virtual message'), _('message')),
                        gmTools.coalesce(self._payload['pk_inbox_message'], '', ' #%s ')
                )

                tt += '%s: %s\n' % (
                        self._payload['l10n_category'],
                        self._payload['l10n_type']
                )

                tt += '%s %s %s\n' % (
                        self._payload['modified_by'],
                        gmTools.u_arrow2right,
                        gmTools.coalesce(self._payload['provider'], _('everyone'))
                )

                tt += '\n%s%s%s\n\n' % (
                        gmTools.u_left_double_angle_quote,
                        self._payload['comment'],
                        gmTools.u_right_double_angle_quote
                )

                if with_patient and (self._payload['pk_patient'] is not None):
                        tt += _('Patient: %s, %s%s %s   #%s\n' % (
                                self._payload['lastnames'],
                                self._payload['firstnames'],
                                gmTools.coalesce(self._payload['l10n_gender'], '', ' (%s)'),
                                gmDateTime.pydt_strftime(self._payload['dob'], '%Y %b %d', none_str = ''),
                                self._payload['pk_patient']
                        ))

                if self._payload['due_date'] is not None:
                        if self._payload['is_overdue']:
                                template = _('Due: %s (%s ago)\n')
                        else:
                                template = _('Due: %s (in %s)\n')
                        tt += template % (
                                gmDateTime.pydt_strftime(self._payload['due_date'], '%Y %b %d'),
                                gmDateTime.format_interval_medically(self._payload['interval_due'])
                        )

                if self._payload['expiry_date'] is not None:
                        if self._payload['is_expired']:
                                template = _('Expired: %s\n')
                        else:
                                template = _('Expires: %s\n')
                        tt += template % gmDateTime.pydt_strftime(self._payload['expiry_date'], '%Y %b %d')

                if self._payload['data'] is not None:
                        tt += self._payload['data'][:150]
                        if len(self._payload['data']) > 150:
                                tt += gmTools.u_ellipsis

                return tt

Ancestors

Inherited members

class cProviderInbox (provider_id=None)
Expand source code
class cProviderInbox:
        def __init__(self, provider_id=None):
                if provider_id is None:
                        self.__provider_id = gmStaff.gmCurrentProvider()['pk_staff']
                else:
                        self.__provider_id = provider_id
        #--------------------------------------------------------
        def delete_message(self, pk=None):
                return delete_inbox_message(inbox_message = pk)

        #--------------------------------------------------------
        def add_message(self, message_type=None, subject=None, patient=None):
                return create_inbox_message (
                        message_type = message_type,
                        subject = subject,
                        patient = patient,
                        staff = self.__provider_id
                )

        #--------------------------------------------------------
        # properties
        #--------------------------------------------------------
        def get_messages(self, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None):
                return get_inbox_messages (
                        pk_staff = self.__provider_id,
                        pk_patient = pk_patient,
                        include_without_provider = include_without_provider,
                        exclude_expired = exclude_expired,
                        expired_only = expired_only,
                        overdue_only = overdue_only,
                        unscheduled_only = unscheduled_only,
                        exclude_unscheduled = exclude_unscheduled,
                        order_by = order_by
                )

        messages = property(get_messages)

        #--------------------------------------------------------
        def get_relevant_messages(self, pk_patient=None, include_without_provider=True):
                return get_relevant_messages (
                        pk_staff = self.__provider_id,
                        pk_patient = pk_patient,
                        include_without_provider = include_without_provider
                )

Instance variables

var messages
Expand source code
def get_messages(self, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None):
        return get_inbox_messages (
                pk_staff = self.__provider_id,
                pk_patient = pk_patient,
                include_without_provider = include_without_provider,
                exclude_expired = exclude_expired,
                expired_only = expired_only,
                overdue_only = overdue_only,
                unscheduled_only = unscheduled_only,
                exclude_unscheduled = exclude_unscheduled,
                order_by = order_by
        )

Methods

def add_message(self, message_type=None, subject=None, patient=None)
Expand source code
def add_message(self, message_type=None, subject=None, patient=None):
        return create_inbox_message (
                message_type = message_type,
                subject = subject,
                patient = patient,
                staff = self.__provider_id
        )
def delete_message(self, pk=None)
Expand source code
def delete_message(self, pk=None):
        return delete_inbox_message(inbox_message = pk)
def get_messages(self, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None)
Expand source code
def get_messages(self, pk_patient=None, include_without_provider=False, exclude_expired=False, expired_only=False, overdue_only=False, unscheduled_only=False, exclude_unscheduled=False, order_by=None):
        return get_inbox_messages (
                pk_staff = self.__provider_id,
                pk_patient = pk_patient,
                include_without_provider = include_without_provider,
                exclude_expired = exclude_expired,
                expired_only = expired_only,
                overdue_only = overdue_only,
                unscheduled_only = unscheduled_only,
                exclude_unscheduled = exclude_unscheduled,
                order_by = order_by
        )
def get_relevant_messages(self, pk_patient=None, include_without_provider=True)
Expand source code
def get_relevant_messages(self, pk_patient=None, include_without_provider=True):
        return get_relevant_messages (
                pk_staff = self.__provider_id,
                pk_patient = pk_patient,
                include_without_provider = include_without_provider
        )