Module Gnumed.business.gmClinNarrative

GNUmed clinical narrative business object.

Expand source code
"""GNUmed clinical narrative business object."""
#============================================================
__author__ = "Carlos Moro <cfmoro1976@yahoo.es>, Karsten Hilbert <Karsten.Hilbert@gmx.net>"
__license__ = 'GPL v2 or later (for details see http://gnu.org)'

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 gmDispatcher
from Gnumed.pycommon import gmHooks

from Gnumed.business import gmCoding
from Gnumed.business import gmSoapDefs


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

#============================================================
def _on_soap_modified():
        """Always relates to the active patient."""
        gmHooks.run_hook_script(hook = 'after_soap_modified')

gmDispatcher.connect(_on_soap_modified, 'clin.clin_narrative_mod_db')

#============================================================
class cNarrative(gmBusinessDBObject.cBusinessDBObject):
        """Represents one clinical free text entry."""

        _cmd_fetch_payload = "SELECT * FROM clin.v_narrative WHERE pk_narrative = %s"
        _cmds_store_payload = [
                """update clin.clin_narrative set
                                narrative = %(narrative)s,
                                clin_when = %(date)s,
                                soap_cat = lower(%(soap_cat)s),
                                fk_encounter = %(pk_encounter)s,
                                fk_episode = %(pk_episode)s
                        WHERE
                                pk = %(pk_narrative)s
                                        AND
                                xmin = %(xmin_clin_narrative)s
                        RETURNING
                                xmin AS xmin_clin_narrative"""
                ]

        _updatable_fields = [
                'narrative',
                'date',
                'soap_cat',
                'pk_episode',
                'pk_encounter'
        ]

        #--------------------------------------------------------
        def format_maximum_information(self, patient=None):
                return self.format(fancy = True, width = 70).split('\n')

        #--------------------------------------------------------
        def format(self, left_margin='', fancy=False, width=75):

                if fancy:
                        txt = gmTools.wrap (
                                text = _('%s: %s by %.8s (v%s)\n%s') % (
                                        self._payload['date'].strftime('%x %H:%M'),
                                        gmSoapDefs.soap_cat2l10n_str[self._payload['soap_cat']],
                                        self._payload['modified_by'],
                                        self._payload['row_version'],
                                        self._payload['narrative']
                                ),
                                width = width,
                                initial_indent = '',
                                subsequent_indent = left_margin + '   '
                        )
                else:
                        txt = '%s [%s]: %s (%.8s)' % (
                                self._payload['date'].strftime('%x %H:%M'),
                                gmSoapDefs.soap_cat2l10n[self._payload['soap_cat']],
                                self._payload['narrative'],
                                self._payload['modified_by']
                        )
                        if len(txt) > width:
                                txt = txt[:width] + gmTools.u_ellipsis

                return txt

        #--------------------------------------------------------
        def add_code(self, pk_code=None):
                """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""

                if pk_code in self._payload['pk_generic_codes']:
                        return

                cmd = """
                        INSERT INTO clin.lnk_code2narrative
                                (fk_item, fk_generic_code)
                        SELECT
                                %(item)s,
                                %(code)s
                        WHERE NOT EXISTS (
                                SELECT 1 FROM clin.lnk_code2narrative
                                WHERE
                                        fk_item = %(item)s
                                                AND
                                        fk_generic_code = %(code)s
                        )"""
                args = {
                        'item': self._payload['pk_narrative'],
                        'code': pk_code
                }
                gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
                return

        #--------------------------------------------------------
        def remove_code(self, pk_code=None):
                """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""
                cmd = "DELETE FROM clin.lnk_code2narrative WHERE fk_item = %(item)s AND fk_generic_code = %(code)s"
                args = {
                        'item': self._payload['pk_narrative'],
                        'code': pk_code
                }
                gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
                return True

        #--------------------------------------------------------
        # properties
        #--------------------------------------------------------
        def _get_generic_codes(self):
                if len(self._payload['pk_generic_codes']) == 0:
                        return []

                cmd = gmCoding._SQL_get_generic_linked_codes % 'pk_generic_code = ANY(%(pks)s)'
                args = {'pks': self._payload['pk_generic_codes']}
                rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                return [ gmCoding.cGenericLinkedCode(row = {'data': r, 'pk_field': 'pk_lnk_code2item'}) for r in rows ]

        def _set_generic_codes(self, pk_codes):
                queries = []
                # remove all codes
                if len(self._payload['pk_generic_codes']) > 0:
                        queries.append ({
                                'cmd': 'DELETE FROM clin.lnk_code2narrative WHERE fk_item = %(narr)s AND fk_generic_code = ANY(%(codes)s)',
                                'args': {
                                        'narr': self._payload['pk_narrative'],
                                        'codes': self._payload['pk_generic_codes']
                                }
                        })
                # add new codes
                for pk_code in pk_codes:
                        queries.append ({
                                'cmd': 'INSERT INTO clin.lnk_code2narrative (fk_item, fk_generic_code) VALUES (%(narr)s, %(pk_code)s)',
                                'args': {
                                        'narr': self._payload['pk_narrative'],
                                        'pk_code': pk_code
                                }
                        })
                if len(queries) == 0:
                        return
                # run it all in one transaction
                gmPG2.run_rw_queries(queries = queries)
                return

        generic_codes = property(_get_generic_codes, _set_generic_codes)

#============================================================
def create_progress_note(soap=None, episode_id=None, encounter_id=None, link_obj=None):
        """Create clinical narrative entries.

        <soap>
                must be a dict, the keys being SOAP categories (including U and
                None=admin) and the values being text (possibly multi-line)

        Existing but empty ('' or None) categories are skipped.
        """
        if soap is None:
                return True

        if not gmSoapDefs.are_valid_soap_cats(list(soap), allow_upper = True):
                raise ValueError('invalid SOAP category in <soap> dictionary: %s', soap)

        if link_obj is None:
                link_obj = gmPG2.get_connection(readonly = False)
                conn_commit = link_obj.commit
                conn_close = link_obj.close
        else:
                conn_commit = lambda *x: None
                conn_close = lambda *x: None

        instances = {}
        for cat in soap:
                val = soap[cat]
                if val is None:
                        continue
                if ''.join([ v.strip() for v in val ]) == '':
                        continue
                instance = create_narrative_item (
                        narrative = '\n'.join([ v.strip() for v in val ]),
                        soap_cat = cat,
                        episode_id = episode_id,
                        encounter_id = encounter_id,
                        link_obj = link_obj
                )
                if instance is None:
                        continue
                instances[cat] = instance

        conn_commit()
        conn_close()
        return instances

#============================================================
def create_narrative_item(narrative=None, soap_cat=None, episode_id=None, encounter_id=None, link_obj=None):
        """Creates a new clinical narrative entry

                narrative - free text clinical narrative
                soap_cat - soap category
                episode_id - episodes's primary key
                encounter_id - encounter's primary key

                any of the args being None (except soap_cat) will fail the SQL code
        """
        # silently do not insert empty narrative
        narrative = narrative.strip()
        if narrative == '':
                return None

        args = {'enc': encounter_id, 'epi': episode_id, 'soap': soap_cat, 'narr': narrative}

        # insert new narrative
        # but, also silently, do not insert true duplicates
        # this should check for .provider = current_user but
        # the view has provider mapped to their staff alias
        cmd = """
                INSERT INTO clin.clin_narrative
                        (fk_encounter, fk_episode, narrative, soap_cat)
                SELECT
                        %(enc)s, %(epi)s, %(narr)s, lower(%(soap)s)
                WHERE NOT EXISTS (
                        SELECT 1 FROM clin.v_narrative
                        WHERE
                                pk_encounter = %(enc)s
                                        AND
                                pk_episode = %(epi)s
                                        AND
                                soap_cat = lower(%(soap)s)
                                        AND
                                narrative = %(narr)s
                )
                RETURNING pk"""
        rows = gmPG2.run_rw_queries(link_obj = link_obj, queries = [{'cmd': cmd, 'args': args}], return_data = True)
        if len(rows) == 1:
                # re-use same link_obj if given because when called from create_progress_note we won't yet see rows inside a new tx
                return cNarrative(aPK_obj = rows[0]['pk'], link_obj = link_obj)

        if len(rows) > 1:
                raise Exception('more than one row returned from single-row INSERT')

        # retrieve existing narrative
        cmd = """
                SELECT * FROM clin.v_narrative
                WHERE
                        pk_encounter = %(enc)s
                                AND
                        pk_episode = %(epi)s
                                AND
                        soap_cat = lower(%(soap)s)
                                AND
                        narrative = %(narr)s
        """
        rows = gmPG2.run_ro_queries(link_obj = link_obj, queries = [{'cmd': cmd, 'args': args}])
        if len(rows) == 1:
                return cNarrative(row = {'pk_field': 'pk_narrative', 'data': rows[0]})

        raise Exception('retrieving known-to-exist narrative row returned 0 or >1 result: %s' % len(rows))

#------------------------------------------------------------
def delete_clin_narrative(narrative=None):
        """Deletes a clin.clin_narrative row by it's PK."""
        cmd = "DELETE FROM clin.clin_narrative WHERE pk=%s"
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': [narrative]}])
        return True

#------------------------------------------------------------
def get_narrative(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, patient=None, order_by=None):
        """Get SOAP notes pertinent to this encounter.

                since
                        - initial date for narrative items
                until
                        - final date for narrative items
                encounters
                        - list of encounters whose narrative are to be retrieved
                episodes
                        - list of episodes whose narrative are to be retrieved
                issues
                        - list of health issues whose narrative are to be retrieved
                soap_cats
                        - list of SOAP categories of the narrative to be retrieved
        """
        where_parts = ['TRUE']
        args = {}
        if encounters is not None:
                where_parts.append('pk_encounter = ANY(%(encs)s)')
                args['encs'] = encounters
        if episodes is not None:
                where_parts.append('pk_episode = ANY(%(epis)s)')
                args['epis'] = episodes
        if issues is not None:
                where_parts.append('pk_health_issue = ANY(%(issues)s)')
                args['issues'] = issues
        if patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = patient
        if soap_cats is not None:
                where_parts.append('c_vn.soap_cat = ANY(%(soap_cats)s)')
                args['soap_cats'] = soap_cats
        if order_by is None:
                order_by = 'ORDER BY date, soap_rank'
        else:
                order_by = 'ORDER BY %s' % order_by
        cmd = """
                SELECT
                        c_vn.*,
                        c_scr.rank AS soap_rank
                FROM
                        clin.v_narrative c_vn
                                LEFT JOIN clin.soap_cat_ranks c_scr ON c_vn.soap_cat = c_scr.soap_cat
                WHERE
                        %s
                %s
        """ % (
                ' AND '.join(where_parts),
                order_by
        )

        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])

        filtered_narrative = [ cNarrative(row = {'pk_field': 'pk_narrative', 'data': row}) for row in rows ]

        if since is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['date'] >= since ]

        if until is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['date'] < until ]

        if providers is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['modified_by'] in providers ]

        return filtered_narrative

#       if issues is not None:
#               filtered_narrative = (lambda narr: narr['pk_health_issue'] in issues, filtered_narrative)
#
#       if episodes is not None:
#               filtered_narrative = (lambda narr: narr['pk_episode'] in episodes, filtered_narrative)
#
#       if encounters is not None:
#               filtered_narrative = (lambda narr: narr['pk_encounter'] in encounters, filtered_narrative)

#       if soap_cats is not None:
#               soap_cats = map(lambda c: c.casefold(), soap_cats)
#               filtered_narrative = (lambda narr: narr['soap_cat'] in soap_cats, filtered_narrative)

#------------------------------------------------------------
def get_as_journal(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, order_by=None, time_range=None, patient=None, active_encounter=None):

        if (patient is None) and (episodes is None) and (issues is None) and (encounters is None):
                raise ValueError('at least one of <patient>, <episodes>, <issues>, <encounters> must not be None')

        if order_by is None:
                order_by = 'ORDER BY clin_when, pk_episode, scr, modified_when, src_table'
        else:
                order_by = 'ORDER BY %s' % order_by

        where_parts = []
        args = {}
        if patient is not None:
                where_parts.append('c_vej.pk_patient = %(pat)s')
                args['pat'] = patient
        if soap_cats is not None:
                # work around bug in psycopg2 not being able to properly
                # adapt None to NULL inside tuples
                if None in soap_cats:
                        where_parts.append('((c_vej.soap_cat = ANY(%(soap_cat)s)) OR (c_vej.soap_cat IS NULL))')
                        soap_cats.remove(None)
                else:
                        where_parts.append('c_vej.soap_cat = ANY(%(soap_cat)s)')
                args['soap_cat'] = soap_cats
        if time_range is not None:
                where_parts.append("c_vej.clin_when > (now() - '%s days'::interval)" % time_range)
        if episodes is not None:
                where_parts.append("c_vej.pk_episode = ANY(%(epis)s)")
                args['epis'] = episodes
        if issues is not None:
                where_parts.append("c_vej.pk_health_issue = ANY(%(issues)s)")
                args['issues'] = issues
        # FIXME: implement more constraints
        cmd_journal = """
                SELECT
                        to_char(c_vej.clin_when, 'YYYY-MM-DD') AS date,
                        c_vej.clin_when,
                        coalesce(c_vej.soap_cat, '') as soap_cat,
                        c_vej.narrative,
                        c_vej.src_table,
                        c_scr.rank AS scr,
                        c_vej.modified_when,
                        to_char(c_vej.modified_when, 'YYYY-MM-DD HH24:MI') AS date_modified,
                        c_vej.modified_by,
                        c_vej.row_version,
                        c_vej.pk_episode,
                        c_vej.pk_encounter,
                        c_vej.soap_cat as real_soap_cat,
                        c_vej.src_pk,
                        c_vej.pk_health_issue,
                        c_vej.health_issue,
                        c_vej.episode,
                        c_vej.issue_active,
                        c_vej.issue_clinically_relevant,
                        c_vej.episode_open,
                        c_vej.encounter_started,
                        c_vej.encounter_last_affirmed,
                        c_vej.encounter_l10n_type,
                        c_vej.pk_patient
                FROM
                        clin.v_emr_journal c_vej
                                join clin.soap_cat_ranks c_scr on (c_scr.soap_cat IS NOT DISTINCT FROM c_vej.soap_cat)
                WHERE
                        %s
        """ % '\n\t\t\t\t\tAND\n\t\t\t\t'.join(where_parts)

        if active_encounter is None:
                cmd = cmd_journal + '\n ' + order_by
        else:
                args['pk_enc'] = active_encounter['pk_encounter']
                args['enc_start'] = active_encounter['started']
                args['enc_last_affirmed'] = active_encounter['last_affirmed']
                args['enc_type'] = active_encounter['l10n_type']
                args['enc_pat'] = active_encounter['pk_patient']
                cmd_hints = """
                        SELECT
                                to_char(now(), 'YYYY-MM-DD') AS date,
                                now() as clin_when,
                                'u'::text as soap_cat,
                                hints.title || E'\n' || hints.hint
                                        as narrative,
                                -- .src_table does not correspond with the
                                -- .src_pk column source because it is generated
                                -- from clin.get_hints_for_patient()
                                'ref.auto_hint'::text as src_table,
                                c_scr.rank AS scr,
                                now() as modified_when,
                                to_char(now(), 'YYYY-MM-DD HH24:MI') AS date_modified,
                                current_user as modified_by,
                                0::integer as row_version,
                                NULL::integer as pk_episode,
                                %(pk_enc)s as pk_encounter,
                                'u'::text as real_soap_cat,
                                hints.pk_auto_hint as src_pk,
                                NULL::integer as pk_health_issue,
                                ''::text as health_issue,
                                ''::text as episode,
                                False as issue_active,
                                False as issue_clinically_relevant,
                                False as episode_open,
                                %(enc_start)s as encounter_started,
                                %(enc_last_affirmed)s  as encounter_last_affirmed,
                                %(enc_type)s as encounter_l10n_type,
                                %(enc_pat)s as pk_patient
                        FROM
                                clin.get_hints_for_patient(%(enc_pat)s) AS hints
                                        JOIN clin.soap_cat_ranks c_scr ON (c_scr.soap_cat = 'u')
                """
                cmd = cmd_journal + '\nUNION ALL\n' + cmd_hints + '\n' + order_by

        journal_rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])

        return journal_rows

#============================================================
# convenience functions
#============================================================
def search_text_across_emrs(search_term=None):

        if search_term is None:
                return []

        if search_term.strip() == '':
                return []

        cmd = 'SELECT * FROM clin.v_narrative4search WHERE narrative ~* %(term)s ORDER BY pk_patient LIMIT 1000'
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': {'term': search_term}}])
        return rows

#============================================================
# main
#------------------------------------------------------------
if __name__ == '__main__':

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

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

        del _
        from Gnumed.pycommon import gmI18N
        gmI18N.activate_locale()
        gmI18N.install_domain(domain = 'gnumed')

        gmPG2.request_login_params(setup_pool = True)

        #-----------------------------------------
        def test_narrative():
                print("\nnarrative test")
                print("--------------")
                narrative = cNarrative(aPK_obj=7)
                fields = narrative.get_fields()
                for field in fields:
                        print(field, ':', narrative[field])
                print("updatable:", narrative.get_updatable_fields())
                print("codes:", narrative.generic_codes)
                #print "adding code..."
                #narrative.add_code('Test code', 'Test coding system')
                #print "codes:", diagnose.get_codes()

                #print "creating narrative..."
                #new_narrative = create_narrative_item(narrative = 'Test narrative', soap_cat = 'a', episode_id=1, encounter_id=2)
                #print new_narrative

        #-----------------------------------------
        def test_search_text_across_emrs():
                results = search_text_across_emrs('cut')
                for r in results:
                        print(r)
        #-----------------------------------------

        test_search_text_across_emrs()
        #test_narrative()

Functions

def create_narrative_item(narrative=None, soap_cat=None, episode_id=None, encounter_id=None, link_obj=None)

Creates a new clinical narrative entry

narrative - free text clinical narrative soap_cat - soap category episode_id - episodes's primary key encounter_id - encounter's primary key

any of the args being None (except soap_cat) will fail the SQL code

Expand source code
def create_narrative_item(narrative=None, soap_cat=None, episode_id=None, encounter_id=None, link_obj=None):
        """Creates a new clinical narrative entry

                narrative - free text clinical narrative
                soap_cat - soap category
                episode_id - episodes's primary key
                encounter_id - encounter's primary key

                any of the args being None (except soap_cat) will fail the SQL code
        """
        # silently do not insert empty narrative
        narrative = narrative.strip()
        if narrative == '':
                return None

        args = {'enc': encounter_id, 'epi': episode_id, 'soap': soap_cat, 'narr': narrative}

        # insert new narrative
        # but, also silently, do not insert true duplicates
        # this should check for .provider = current_user but
        # the view has provider mapped to their staff alias
        cmd = """
                INSERT INTO clin.clin_narrative
                        (fk_encounter, fk_episode, narrative, soap_cat)
                SELECT
                        %(enc)s, %(epi)s, %(narr)s, lower(%(soap)s)
                WHERE NOT EXISTS (
                        SELECT 1 FROM clin.v_narrative
                        WHERE
                                pk_encounter = %(enc)s
                                        AND
                                pk_episode = %(epi)s
                                        AND
                                soap_cat = lower(%(soap)s)
                                        AND
                                narrative = %(narr)s
                )
                RETURNING pk"""
        rows = gmPG2.run_rw_queries(link_obj = link_obj, queries = [{'cmd': cmd, 'args': args}], return_data = True)
        if len(rows) == 1:
                # re-use same link_obj if given because when called from create_progress_note we won't yet see rows inside a new tx
                return cNarrative(aPK_obj = rows[0]['pk'], link_obj = link_obj)

        if len(rows) > 1:
                raise Exception('more than one row returned from single-row INSERT')

        # retrieve existing narrative
        cmd = """
                SELECT * FROM clin.v_narrative
                WHERE
                        pk_encounter = %(enc)s
                                AND
                        pk_episode = %(epi)s
                                AND
                        soap_cat = lower(%(soap)s)
                                AND
                        narrative = %(narr)s
        """
        rows = gmPG2.run_ro_queries(link_obj = link_obj, queries = [{'cmd': cmd, 'args': args}])
        if len(rows) == 1:
                return cNarrative(row = {'pk_field': 'pk_narrative', 'data': rows[0]})

        raise Exception('retrieving known-to-exist narrative row returned 0 or >1 result: %s' % len(rows))
def create_progress_note(soap=None, episode_id=None, encounter_id=None, link_obj=None)

Create clinical narrative entries.

must be a dict, the keys being SOAP categories (including U and None=admin) and the values being text (possibly multi-line)

Existing but empty ('' or None) categories are skipped.

Expand source code
def create_progress_note(soap=None, episode_id=None, encounter_id=None, link_obj=None):
        """Create clinical narrative entries.

        <soap>
                must be a dict, the keys being SOAP categories (including U and
                None=admin) and the values being text (possibly multi-line)

        Existing but empty ('' or None) categories are skipped.
        """
        if soap is None:
                return True

        if not gmSoapDefs.are_valid_soap_cats(list(soap), allow_upper = True):
                raise ValueError('invalid SOAP category in <soap> dictionary: %s', soap)

        if link_obj is None:
                link_obj = gmPG2.get_connection(readonly = False)
                conn_commit = link_obj.commit
                conn_close = link_obj.close
        else:
                conn_commit = lambda *x: None
                conn_close = lambda *x: None

        instances = {}
        for cat in soap:
                val = soap[cat]
                if val is None:
                        continue
                if ''.join([ v.strip() for v in val ]) == '':
                        continue
                instance = create_narrative_item (
                        narrative = '\n'.join([ v.strip() for v in val ]),
                        soap_cat = cat,
                        episode_id = episode_id,
                        encounter_id = encounter_id,
                        link_obj = link_obj
                )
                if instance is None:
                        continue
                instances[cat] = instance

        conn_commit()
        conn_close()
        return instances
def delete_clin_narrative(narrative=None)

Deletes a clin.clin_narrative row by it's PK.

Expand source code
def delete_clin_narrative(narrative=None):
        """Deletes a clin.clin_narrative row by it's PK."""
        cmd = "DELETE FROM clin.clin_narrative WHERE pk=%s"
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': [narrative]}])
        return True
def get_as_journal(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, order_by=None, time_range=None, patient=None, active_encounter=None)
Expand source code
def get_as_journal(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, order_by=None, time_range=None, patient=None, active_encounter=None):

        if (patient is None) and (episodes is None) and (issues is None) and (encounters is None):
                raise ValueError('at least one of <patient>, <episodes>, <issues>, <encounters> must not be None')

        if order_by is None:
                order_by = 'ORDER BY clin_when, pk_episode, scr, modified_when, src_table'
        else:
                order_by = 'ORDER BY %s' % order_by

        where_parts = []
        args = {}
        if patient is not None:
                where_parts.append('c_vej.pk_patient = %(pat)s')
                args['pat'] = patient
        if soap_cats is not None:
                # work around bug in psycopg2 not being able to properly
                # adapt None to NULL inside tuples
                if None in soap_cats:
                        where_parts.append('((c_vej.soap_cat = ANY(%(soap_cat)s)) OR (c_vej.soap_cat IS NULL))')
                        soap_cats.remove(None)
                else:
                        where_parts.append('c_vej.soap_cat = ANY(%(soap_cat)s)')
                args['soap_cat'] = soap_cats
        if time_range is not None:
                where_parts.append("c_vej.clin_when > (now() - '%s days'::interval)" % time_range)
        if episodes is not None:
                where_parts.append("c_vej.pk_episode = ANY(%(epis)s)")
                args['epis'] = episodes
        if issues is not None:
                where_parts.append("c_vej.pk_health_issue = ANY(%(issues)s)")
                args['issues'] = issues
        # FIXME: implement more constraints
        cmd_journal = """
                SELECT
                        to_char(c_vej.clin_when, 'YYYY-MM-DD') AS date,
                        c_vej.clin_when,
                        coalesce(c_vej.soap_cat, '') as soap_cat,
                        c_vej.narrative,
                        c_vej.src_table,
                        c_scr.rank AS scr,
                        c_vej.modified_when,
                        to_char(c_vej.modified_when, 'YYYY-MM-DD HH24:MI') AS date_modified,
                        c_vej.modified_by,
                        c_vej.row_version,
                        c_vej.pk_episode,
                        c_vej.pk_encounter,
                        c_vej.soap_cat as real_soap_cat,
                        c_vej.src_pk,
                        c_vej.pk_health_issue,
                        c_vej.health_issue,
                        c_vej.episode,
                        c_vej.issue_active,
                        c_vej.issue_clinically_relevant,
                        c_vej.episode_open,
                        c_vej.encounter_started,
                        c_vej.encounter_last_affirmed,
                        c_vej.encounter_l10n_type,
                        c_vej.pk_patient
                FROM
                        clin.v_emr_journal c_vej
                                join clin.soap_cat_ranks c_scr on (c_scr.soap_cat IS NOT DISTINCT FROM c_vej.soap_cat)
                WHERE
                        %s
        """ % '\n\t\t\t\t\tAND\n\t\t\t\t'.join(where_parts)

        if active_encounter is None:
                cmd = cmd_journal + '\n ' + order_by
        else:
                args['pk_enc'] = active_encounter['pk_encounter']
                args['enc_start'] = active_encounter['started']
                args['enc_last_affirmed'] = active_encounter['last_affirmed']
                args['enc_type'] = active_encounter['l10n_type']
                args['enc_pat'] = active_encounter['pk_patient']
                cmd_hints = """
                        SELECT
                                to_char(now(), 'YYYY-MM-DD') AS date,
                                now() as clin_when,
                                'u'::text as soap_cat,
                                hints.title || E'\n' || hints.hint
                                        as narrative,
                                -- .src_table does not correspond with the
                                -- .src_pk column source because it is generated
                                -- from clin.get_hints_for_patient()
                                'ref.auto_hint'::text as src_table,
                                c_scr.rank AS scr,
                                now() as modified_when,
                                to_char(now(), 'YYYY-MM-DD HH24:MI') AS date_modified,
                                current_user as modified_by,
                                0::integer as row_version,
                                NULL::integer as pk_episode,
                                %(pk_enc)s as pk_encounter,
                                'u'::text as real_soap_cat,
                                hints.pk_auto_hint as src_pk,
                                NULL::integer as pk_health_issue,
                                ''::text as health_issue,
                                ''::text as episode,
                                False as issue_active,
                                False as issue_clinically_relevant,
                                False as episode_open,
                                %(enc_start)s as encounter_started,
                                %(enc_last_affirmed)s  as encounter_last_affirmed,
                                %(enc_type)s as encounter_l10n_type,
                                %(enc_pat)s as pk_patient
                        FROM
                                clin.get_hints_for_patient(%(enc_pat)s) AS hints
                                        JOIN clin.soap_cat_ranks c_scr ON (c_scr.soap_cat = 'u')
                """
                cmd = cmd_journal + '\nUNION ALL\n' + cmd_hints + '\n' + order_by

        journal_rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])

        return journal_rows
def get_narrative(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, patient=None, order_by=None)

Get SOAP notes pertinent to this encounter.

since - initial date for narrative items until - final date for narrative items encounters - list of encounters whose narrative are to be retrieved episodes - list of episodes whose narrative are to be retrieved issues - list of health issues whose narrative are to be retrieved soap_cats - list of SOAP categories of the narrative to be retrieved

Expand source code
def get_narrative(since=None, until=None, encounters=None, episodes=None, issues=None, soap_cats=None, providers=None, patient=None, order_by=None):
        """Get SOAP notes pertinent to this encounter.

                since
                        - initial date for narrative items
                until
                        - final date for narrative items
                encounters
                        - list of encounters whose narrative are to be retrieved
                episodes
                        - list of episodes whose narrative are to be retrieved
                issues
                        - list of health issues whose narrative are to be retrieved
                soap_cats
                        - list of SOAP categories of the narrative to be retrieved
        """
        where_parts = ['TRUE']
        args = {}
        if encounters is not None:
                where_parts.append('pk_encounter = ANY(%(encs)s)')
                args['encs'] = encounters
        if episodes is not None:
                where_parts.append('pk_episode = ANY(%(epis)s)')
                args['epis'] = episodes
        if issues is not None:
                where_parts.append('pk_health_issue = ANY(%(issues)s)')
                args['issues'] = issues
        if patient is not None:
                where_parts.append('pk_patient = %(pat)s')
                args['pat'] = patient
        if soap_cats is not None:
                where_parts.append('c_vn.soap_cat = ANY(%(soap_cats)s)')
                args['soap_cats'] = soap_cats
        if order_by is None:
                order_by = 'ORDER BY date, soap_rank'
        else:
                order_by = 'ORDER BY %s' % order_by
        cmd = """
                SELECT
                        c_vn.*,
                        c_scr.rank AS soap_rank
                FROM
                        clin.v_narrative c_vn
                                LEFT JOIN clin.soap_cat_ranks c_scr ON c_vn.soap_cat = c_scr.soap_cat
                WHERE
                        %s
                %s
        """ % (
                ' AND '.join(where_parts),
                order_by
        )

        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])

        filtered_narrative = [ cNarrative(row = {'pk_field': 'pk_narrative', 'data': row}) for row in rows ]

        if since is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['date'] >= since ]

        if until is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['date'] < until ]

        if providers is not None:
                filtered_narrative = [ narr for narr in filtered_narrative if narr['modified_by'] in providers ]

        return filtered_narrative
def search_text_across_emrs(search_term=None)
Expand source code
def search_text_across_emrs(search_term=None):

        if search_term is None:
                return []

        if search_term.strip() == '':
                return []

        cmd = 'SELECT * FROM clin.v_narrative4search WHERE narrative ~* %(term)s ORDER BY pk_patient LIMIT 1000'
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': {'term': search_term}}])
        return rows

Classes

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

Represents one clinical free text entry.

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 cNarrative(gmBusinessDBObject.cBusinessDBObject):
        """Represents one clinical free text entry."""

        _cmd_fetch_payload = "SELECT * FROM clin.v_narrative WHERE pk_narrative = %s"
        _cmds_store_payload = [
                """update clin.clin_narrative set
                                narrative = %(narrative)s,
                                clin_when = %(date)s,
                                soap_cat = lower(%(soap_cat)s),
                                fk_encounter = %(pk_encounter)s,
                                fk_episode = %(pk_episode)s
                        WHERE
                                pk = %(pk_narrative)s
                                        AND
                                xmin = %(xmin_clin_narrative)s
                        RETURNING
                                xmin AS xmin_clin_narrative"""
                ]

        _updatable_fields = [
                'narrative',
                'date',
                'soap_cat',
                'pk_episode',
                'pk_encounter'
        ]

        #--------------------------------------------------------
        def format_maximum_information(self, patient=None):
                return self.format(fancy = True, width = 70).split('\n')

        #--------------------------------------------------------
        def format(self, left_margin='', fancy=False, width=75):

                if fancy:
                        txt = gmTools.wrap (
                                text = _('%s: %s by %.8s (v%s)\n%s') % (
                                        self._payload['date'].strftime('%x %H:%M'),
                                        gmSoapDefs.soap_cat2l10n_str[self._payload['soap_cat']],
                                        self._payload['modified_by'],
                                        self._payload['row_version'],
                                        self._payload['narrative']
                                ),
                                width = width,
                                initial_indent = '',
                                subsequent_indent = left_margin + '   '
                        )
                else:
                        txt = '%s [%s]: %s (%.8s)' % (
                                self._payload['date'].strftime('%x %H:%M'),
                                gmSoapDefs.soap_cat2l10n[self._payload['soap_cat']],
                                self._payload['narrative'],
                                self._payload['modified_by']
                        )
                        if len(txt) > width:
                                txt = txt[:width] + gmTools.u_ellipsis

                return txt

        #--------------------------------------------------------
        def add_code(self, pk_code=None):
                """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""

                if pk_code in self._payload['pk_generic_codes']:
                        return

                cmd = """
                        INSERT INTO clin.lnk_code2narrative
                                (fk_item, fk_generic_code)
                        SELECT
                                %(item)s,
                                %(code)s
                        WHERE NOT EXISTS (
                                SELECT 1 FROM clin.lnk_code2narrative
                                WHERE
                                        fk_item = %(item)s
                                                AND
                                        fk_generic_code = %(code)s
                        )"""
                args = {
                        'item': self._payload['pk_narrative'],
                        'code': pk_code
                }
                gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
                return

        #--------------------------------------------------------
        def remove_code(self, pk_code=None):
                """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""
                cmd = "DELETE FROM clin.lnk_code2narrative WHERE fk_item = %(item)s AND fk_generic_code = %(code)s"
                args = {
                        'item': self._payload['pk_narrative'],
                        'code': pk_code
                }
                gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
                return True

        #--------------------------------------------------------
        # properties
        #--------------------------------------------------------
        def _get_generic_codes(self):
                if len(self._payload['pk_generic_codes']) == 0:
                        return []

                cmd = gmCoding._SQL_get_generic_linked_codes % 'pk_generic_code = ANY(%(pks)s)'
                args = {'pks': self._payload['pk_generic_codes']}
                rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                return [ gmCoding.cGenericLinkedCode(row = {'data': r, 'pk_field': 'pk_lnk_code2item'}) for r in rows ]

        def _set_generic_codes(self, pk_codes):
                queries = []
                # remove all codes
                if len(self._payload['pk_generic_codes']) > 0:
                        queries.append ({
                                'cmd': 'DELETE FROM clin.lnk_code2narrative WHERE fk_item = %(narr)s AND fk_generic_code = ANY(%(codes)s)',
                                'args': {
                                        'narr': self._payload['pk_narrative'],
                                        'codes': self._payload['pk_generic_codes']
                                }
                        })
                # add new codes
                for pk_code in pk_codes:
                        queries.append ({
                                'cmd': 'INSERT INTO clin.lnk_code2narrative (fk_item, fk_generic_code) VALUES (%(narr)s, %(pk_code)s)',
                                'args': {
                                        'narr': self._payload['pk_narrative'],
                                        'pk_code': pk_code
                                }
                        })
                if len(queries) == 0:
                        return
                # run it all in one transaction
                gmPG2.run_rw_queries(queries = queries)
                return

        generic_codes = property(_get_generic_codes, _set_generic_codes)

Ancestors

Instance variables

var generic_codes
Expand source code
def _get_generic_codes(self):
        if len(self._payload['pk_generic_codes']) == 0:
                return []

        cmd = gmCoding._SQL_get_generic_linked_codes % 'pk_generic_code = ANY(%(pks)s)'
        args = {'pks': self._payload['pk_generic_codes']}
        rows = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
        return [ gmCoding.cGenericLinkedCode(row = {'data': r, 'pk_field': 'pk_lnk_code2item'}) for r in rows ]

Methods

def add_code(self, pk_code=None)

must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)

Expand source code
def add_code(self, pk_code=None):
        """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""

        if pk_code in self._payload['pk_generic_codes']:
                return

        cmd = """
                INSERT INTO clin.lnk_code2narrative
                        (fk_item, fk_generic_code)
                SELECT
                        %(item)s,
                        %(code)s
                WHERE NOT EXISTS (
                        SELECT 1 FROM clin.lnk_code2narrative
                        WHERE
                                fk_item = %(item)s
                                        AND
                                fk_generic_code = %(code)s
                )"""
        args = {
                'item': self._payload['pk_narrative'],
                'code': pk_code
        }
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
        return
def format_maximum_information(self, patient=None)
Expand source code
def format_maximum_information(self, patient=None):
        return self.format(fancy = True, width = 70).split('\n')
def remove_code(self, pk_code=None)

must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)

Expand source code
def remove_code(self, pk_code=None):
        """<pk_code> must be a value from ref.coding_system_root.pk_coding_system (clin.lnk_code2item_root.fk_generic_code)"""
        cmd = "DELETE FROM clin.lnk_code2narrative WHERE fk_item = %(item)s AND fk_generic_code = %(code)s"
        args = {
                'item': self._payload['pk_narrative'],
                'code': pk_code
        }
        gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}])
        return True

Inherited members