# Module `Gnumed.business.gmCoding`

GNUmed coding systems handling middleware

Expand source code

    """GNUmed coding systems handling middleware"""
    #============================================================
    __license__ = "GPL"
    __author__ = "K.Hilbert <Karsten.Hilbert@gmx.net>"

    # stdlib
    import sys
    import logging

    # GNUmed modules
    if __name__ == '__main__':
            sys.path.insert(0, '../../')
    from Gnumed.pycommon import gmPG2
    from Gnumed.pycommon import gmBusinessDBObject
    from Gnumed.pycommon import gmHooks
    from Gnumed.pycommon import gmDispatcher

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

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

    gmDispatcher.connect(_on_code_link_modified, 'clin.episode_code_mod_db')
    gmDispatcher.connect(_on_code_link_modified, 'clin.rfe_code_mod_db')
    gmDispatcher.connect(_on_code_link_modified, 'clin.aoe_code_mod_db')
    gmDispatcher.connect(_on_code_link_modified, 'clin.health_issue_code_mod_db')
    gmDispatcher.connect(_on_code_link_modified, 'clin.narrative_code_mod_db')
    gmDispatcher.connect(_on_code_link_modified, 'clin.procedure_code_mod_db')

    #============================================================
    # generic linked code handling
    #------------------------------------------------------------
    _SQL_get_generic_linked_codes = "SELECT * FROM clin.v_linked_codes WHERE %s"

    class cGenericLinkedCode(gmBusinessDBObject.cBusinessDBObject):
            """Represents a generic linked code.

            READ ONLY
            """
            _cmd_fetch_payload = _SQL_get_generic_linked_codes % "pk_lnk_code2item = %s"
            _cmds_store_payload = []
            _updatable_fields = []
    #------------------------------------------------------------
    def get_generic_linked_codes(order_by=None):
            if order_by is None:
                    order_by = 'true'
            else:
                    order_by = 'true ORDER BY %s' % order_by

            cmd = _SQL_get_generic_linked_codes % order_by
            rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = True)
            return [ cGenericLinkedCode(row = {'data': r, 'idx': idx, 'pk_field': 'pk_lnk_code2item'}) for r in rows ]
    #============================================================
    # this class represents a generic (non-qualified) code
    #------------------------------------------------------------
    _SQL_get_generic_code = "SELECT * FROM ref.v_generic_codes WHERE %s"

    class cGenericCode(gmBusinessDBObject.cBusinessDBObject):
            """READ ONLY"""
            _cmd_fetch_payload = _SQL_get_generic_code % "pk_generic_code = %s"
            _cmds_store_payload = []
            _updatable_fields = []
    #------------------------------------------------------------
    def get_generic_codes(order_by=None):
            if order_by is None:
                    order_by = 'true'
            else:
                    order_by = 'true ORDER BY %s' % order_by

            cmd = _SQL_get_generic_code % order_by
            rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = True)
            return [ cGenericCode(row = {'data': r, 'idx': idx, 'pk_field': 'pk_generic_code'}) for r in rows ]

    #============================================================
    # module level functions
    #------------------------------------------------------------
    def get_coded_terms(coding_systems=None, languages=None, order_by=None):

            where_snippets = []
            args = {}

            if coding_systems is not None:
                    where_snippets.append("((coding_system IN %(sys)s) OR (coding_system_long IN %(sys)s)")
                    args['sys'] = tuple(coding_systems)

            if languages is not None:
                    where_snippets.append('lang IN %(lang)s')
                    args['lang'] = tuple(languages)

            cmd = 'select * from ref.v_coded_terms'

            if len(where_snippets) > 0:
                    cmd += ' WHERE %s' % ' AND '.join(where_snippets)

            if order_by is not None:
                    cmd += ' ORDER BY %s' % order_by

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

            return rows

    #============================================================
    def get_data_sources(order_by='name_long, lang, version'):
            cmd = 'SELECT * FROM ref.data_source ORDER BY %s' % order_by
            rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = False)
            return rows

    #============================================================
    def create_data_source(long_name=None, short_name=None, version=None, source=None, language=None):

                    args = {
                            'lname': long_name,
                            'sname': short_name,
                            'ver': version,
                            'src': source,
                            'lang': language
                    }

                    cmd = "SELECT pk FROM ref.data_source WHERE name_long = %(lname)s AND name_short = %(sname)s AND version = %(ver)s"
                    rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                    if len(rows) > 0:
                            return rows[0]['pk']

                    cmd = """
                            INSERT INTO ref.data_source (name_long, name_short, version, source, lang)
                            VALUES (
                                    %(lname)s,
                                    %(sname)s,
                                    %(ver)s,
                                    %(src)s,
                                    %(lang)s
                            )
                            RETURNING pk
                    """
                    rows, idx = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)

                    return rows[0]['pk']

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

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

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

            #----------------------------------------------------
            def test_get_generic_codes():
                    print("generic codes:")
                    for code in get_generic_codes():
                            print(code)
            #----------------------------------------------------
            def test_get_coded_terms():
                    print("known codes:")
                    for term in get_coded_terms():
                            print(term)
            #----------------------------------------------------
            def test_get_generic_linked_codes():
                    print("generically linked generic codes:")
                    for code in get_generic_linked_codes():
                            print(code)
            #----------------------------------------------------
            #test_get_coded_terms()
            #test_get_generic_codes()
            test_get_generic_linked_codes()

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

## Functions

`def create_data_source(long_name=None, short_name=None, version=None, source=None, language=None)`
  Expand source code

      def create_data_source(long_name=None, short_name=None, version=None, source=None, language=None):

                      args = {
                              'lname': long_name,
                              'sname': short_name,
                              'ver': version,
                              'src': source,
                              'lang': language
                      }

                      cmd = "SELECT pk FROM ref.data_source WHERE name_long = %(lname)s AND name_short = %(sname)s AND version = %(ver)s"
                      rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}])
                      if len(rows) > 0:
                              return rows[0]['pk']

                      cmd = """
                              INSERT INTO ref.data_source (name_long, name_short, version, source, lang)
                              VALUES (
                                      %(lname)s,
                                      %(sname)s,
                                      %(ver)s,
                                      %(src)s,
                                      %(lang)s
                              )
                              RETURNING pk
                      """
                      rows, idx = gmPG2.run_rw_queries(queries = [{'cmd': cmd, 'args': args}], return_data = True)

                      return rows[0]['pk']

`def get_coded_terms(coding_systems=None, languages=None, order_by=None)`
  Expand source code

      def get_coded_terms(coding_systems=None, languages=None, order_by=None):

              where_snippets = []
              args = {}

              if coding_systems is not None:
                      where_snippets.append("((coding_system IN %(sys)s) OR (coding_system_long IN %(sys)s)")
                      args['sys'] = tuple(coding_systems)

              if languages is not None:
                      where_snippets.append('lang IN %(lang)s')
                      args['lang'] = tuple(languages)

              cmd = 'select * from ref.v_coded_terms'

              if len(where_snippets) > 0:
                      cmd += ' WHERE %s' % ' AND '.join(where_snippets)

              if order_by is not None:
                      cmd += ' ORDER BY %s' % order_by

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

              return rows

`def get_data_sources(order_by='name_long, lang, version')`
  Expand source code

      def get_data_sources(order_by='name_long, lang, version'):
              cmd = 'SELECT * FROM ref.data_source ORDER BY %s' % order_by
              rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = False)
              return rows

`def get_generic_codes(order_by=None)`
  Expand source code

      def get_generic_codes(order_by=None):
              if order_by is None:
                      order_by = 'true'
              else:
                      order_by = 'true ORDER BY %s' % order_by

              cmd = _SQL_get_generic_code % order_by
              rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = True)
              return [ cGenericCode(row = {'data': r, 'idx': idx, 'pk_field': 'pk_generic_code'}) for r in rows ]

`def get_generic_linked_codes(order_by=None)`
  Expand source code

      def get_generic_linked_codes(order_by=None):
              if order_by is None:
                      order_by = 'true'
              else:
                      order_by = 'true ORDER BY %s' % order_by

              cmd = _SQL_get_generic_linked_codes % order_by
              rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd}], get_col_idx = True)
              return [ cGenericLinkedCode(row = {'data': r, 'idx': idx, 'pk_field': 'pk_lnk_code2item'}) for r in rows ]

## Classes

`class cGenericCode (aPK_obj=None, row: dict = None, link_obj=None)`

  READ ONLY

  Init business object.

  Call from child classes like so:

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

  ## Args

  `aPK_obj`
    retrieve data from backend * a simple value the primary key WHERE condition must be a simple column * a dictionary of values the primary key WHERE condition must be a subselect consuming the dict and producing the single-value primary key
  `row`
    must hold the fields * idx: a dict mapping field names to position * data: the field values in a list (as returned by cursor.fetchone() in the DB-API) * pk_field: the name of the primary key field OR * pk_obj: a dictionary suitable for passed to cursor.execute and holding the primary key values, used for composite PKs

  ## Examples

  row = { 'data': rows[0], 'idx': idx, 'pk_field': 'pk_XXX (the PK column name)', 'pk_obj': {'pk_col1': pk_col1_val, 'pk_col2': pk_col2_val} } rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}], get_col_idx = True) objects = [ cChildClass(row = {'data': r, 'idx': idx, 'pk_field': 'the PK column name'}) for r in rows ]

  Expand source code

      class cGenericCode(gmBusinessDBObject.cBusinessDBObject):
              """READ ONLY"""
              _cmd_fetch_payload = _SQL_get_generic_code % "pk_generic_code = %s"
              _cmds_store_payload = []
              _updatable_fields = []

  ### Ancestors

  - cBusinessDBObject

  ### Inherited members

  - `cBusinessDBObject`:
    - `fields_as_dict`
    - `format`
    - `get_fields`
    - `get_patient`
    - `get_updatable_fields`
    - `is_modified`
    - `patient_pk`
    - `refetch_payload`
    - `same_payload`
    - `save`
    - `save_payload`
    - `staff_id`
`class cGenericLinkedCode (aPK_obj=None, row: dict = None, link_obj=None)`

  Represents a generic linked code.

  READ ONLY

  Init business object.

  Call from child classes like so:

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

  ## Args

  `aPK_obj`
    retrieve data from backend * a simple value the primary key WHERE condition must be a simple column * a dictionary of values the primary key WHERE condition must be a subselect consuming the dict and producing the single-value primary key
  `row`
    must hold the fields * idx: a dict mapping field names to position * data: the field values in a list (as returned by cursor.fetchone() in the DB-API) * pk_field: the name of the primary key field OR * pk_obj: a dictionary suitable for passed to cursor.execute and holding the primary key values, used for composite PKs

  ## Examples

  row = { 'data': rows[0], 'idx': idx, 'pk_field': 'pk_XXX (the PK column name)', 'pk_obj': {'pk_col1': pk_col1_val, 'pk_col2': pk_col2_val} } rows, idx = gmPG2.run_ro_queries(queries = [{'cmd': cmd, 'args': args}], get_col_idx = True) objects = [ cChildClass(row = {'data': r, 'idx': idx, 'pk_field': 'the PK column name'}) for r in rows ]

  Expand source code

      class cGenericLinkedCode(gmBusinessDBObject.cBusinessDBObject):
              """Represents a generic linked code.

              READ ONLY
              """
              _cmd_fetch_payload = _SQL_get_generic_linked_codes % "pk_lnk_code2item = %s"
              _cmds_store_payload = []
              _updatable_fields = []

  ### Ancestors

  - cBusinessDBObject

  ### Inherited members

  - `cBusinessDBObject`:
    - `fields_as_dict`
    - `format`
    - `get_fields`
    - `get_patient`
    - `get_updatable_fields`
    - `is_modified`
    - `patient_pk`
    - `refetch_payload`
    - `same_payload`
    - `save`
    - `save_payload`
    - `staff_id`