I have the following models:
class LabResult(Model):
__tablename__ = 'cp_svc_lab_result'
id = Column(Integer, primary_key=True, autoincrement=True)
test_code = Column(String(255))
test_code_system = Column(String(255))
test_name = Column(String(255))
test_name_orig = Column(String(255))
proc_name = Column(String(255))
proc_code = Column(String(255))
proc_code_modifier = Column(String(255))
proc_code_system = Column(String(255))
result_value = Column(String(255))
result_value_num = Column(String(255))
result_value_num_orig = Column(String(255))
result_unit = Column(String(255))
result_unit_orig = Column(String(255))
ref_normal_min = Column(String(255))
ref_normal_max = Column(String(255))
result_characterization = Column(String(255))
collection_datetime = Column(DateTime)
result_datetime = Column(DateTime)
abnormal_flag = Column(String(255))
lab_status = Column(String(255))
result_comment = Column(UnicodeText)
component_comment = Column(UnicodeText)
order_id = Column(String(255))
order_num = Column(String(255))
order_priority = Column(String(255))
order_result_id = Column(String(255))
order_reviewed = Column(String(255))
order_type_orig = Column(String(255))
order_type_orig_id = Column(String(255))
result_code_orig = Column(String(255))
result_code_orig_system = Column(String(255))
result_status = Column(String(255))
patient_id = Column(Integer, ForeignKey('cp_patient.patient_id'))
service_id = Column(Integer, ForeignKey('cp_service.service_id'))
provider_id = Column(Integer, ForeignKey('cp_provider.provider_id'))
and,
class Provider(Model):
__tablename__ = 'cp_provider'
provider_id = Column(Integer, primary_key=True)
authorize_meds_yn = Column(String(80))
active_status = Column(String(80))
authorize_orders_yn = Column(String(80))
birth_date = Column(DateTime)
clinician_degree = Column(String(80))
clinician_title = Column(String(80))
country = Column(String(80))
dea_number = Column(String(80))
email = Column(String(80))
external_name = Column(String(80))
provider_e_prescribe_yn = Column(String(80))
inpatient_ordering_yn = Column(String(80))
name = Column(String(80))
npi = Column(String(80))
office_fax = Column(String(80))
office_phone = Column(String(80))
outpatient_ordering_yn = Column(String(80))
provider_type = Column(String(80))
referral_source_type = Column(String(80))
resident_yn = Column(String(80))
sex = Column(String(80))
surgical_pool_yn = Column(String(80))
transcription_user_yn = Column(String(80))
upin = Column(String(80))
encounter = relationship("EncounterList", backref=backref("Provider"), lazy=
'dynamic')
Where one provider can have multiple LabResults... How do I handle the case
when there may be a provider_id in the LabResult table, but not in the
Provider table (we are only keeping a subset of the provider list)? I need
to access the object Provider so that I can have access to all of its
attributes, such as Provider.name, etc. When I try this now, I get an error
that "Nonetype has attribute name." Ia there a way to set a default value
for when the result is NULL?
Thanks!
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