Class: DdeService

Inherits:
Object
  • Object
show all
Includes:
ModelUtils
Defined in:
app/services/dde_service.rb

Defined Under Namespace

Classes: DdeMahisError

Constant Summary collapse

DdeMahis_CONFIG_PATH = 
Rails.root.join('config', 'dde.yml')
LOGGER = 
Rails.logger
PATIENT_SEARCH_RESULTS_LIMIT =

Limit all find queries for local patients to this

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Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ModelUtils

#concept, #concept_id_to_name, #concept_name, #concept_name_to_id, #drug, #encounter_type, #global_property, #order_type, #patient_identifier_type, #report_type, #user_property

Constructor Details

#initialize(visit_type:) ⇒ DdeService

Returns a new instance of DdeService.

Raises:

  • (InvalidParameterError) 


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# File 'app/services/dde_service.rb', line 18

def initialize(visit_type:)
  raise InvalidParameterError, 'VisitType (visit_type_id) is required' unless visit_type

  @visit_type = visit_type
end

Instance Attribute Details

#visit_type ⇒ Object

Returns the value of attribute visit_type.



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# File 'app/services/dde_service.rb', line 14

def visit_type
  @visit_type
end

Class Method Details

.dde_enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/dde_service.rb', line 24

def self.dde_enabled?
  property = GlobalProperty.find_by_property('dde_enabled')&.property_value
  return false unless property

  case property
  when /true/i then true
  when /false/i then false
  else raise "Invalid value for property dde_enabled: #{property.property_value}"
  end
end

Instance Method Details

#create_patient(patient) ⇒ Object

Registers local OpenMRS patient in DdeMahis

On success patient get two identifiers under the types 'Dde Person Document ID' and 'National id'. The 'Dde Person Document ID' is the patient's record ID in the local DdeMahis instance and the 'National ID' is the national unique identifier for the patient.



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# File 'app/services/dde_service.rb', line 55

def create_patient(patient)
  push_local_patient_to_dde(patient)
end

#create_patient_footprint(patient, date = nil, creator_id = nil) ⇒ Object

Pushes a footprint for patient in current visit_type to DdeMahis



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# File 'app/services/dde_service.rb', line 97

def create_patient_footprint(patient, date = nil, creator_id = nil)
  LOGGER.debug("Pushing footprint to DdeMahis for patient ##{patient.patient_id}")
  doc_id = find_patient_doc_id(patient)
  unless doc_id
    LOGGER.debug("Patient ##{patient.patient_id} is not a DdeMahis patient")
    return
  end

  response, status = dde_client.post('update_footprint', person_uuid: doc_id,
                                                         location_id: Location.current_location_health_center.location_id,
                                                         visit_type_id: visit_type.id,
                                                         encounter_datetime: date || Date.tody,
                                                         user_id: creator_id || User.current.user_id)

  LOGGER.warn("Failed to push patient footprint to DdeMahis: #{status} - #{response}") unless status == 200
end

#dde_patient_to_local_person(dde_patient) ⇒ Object

Converts a dde_patient object into an object that can be passed to the person_service to create or update a person.



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# File 'app/services/dde_service.rb', line 293

def dde_patient_to_local_person(dde_patient)
  attributes = dde_patient.fetch('attributes')

  # ActiveSupport::HashWithIndifferentAccess.new(
  #   birthdate: dde_patient.fetch('birthdate'),
  #   birthdate_estimated: dde_patient.fetch('birthdate_estimated'),
  #   gender: dde_patient.fetch('gender'),
  #   given_name: dde_patient.fetch('given_name'),
  #   family_name: dde_patient.fetch('family_name'),
  #   middle_name: dde_patient.fetch('middle_name'),
  #   home_village: attributes.fetch('home_village'),
  #   home_traditional_authority: attributes.fetch('home_traditional_authority'),
  #   home_district: attributes.fetch('home_district'),
  #   current_village: attributes.fetch('current_village'),
  #   current_traditional_authority: attributes.fetch('current_traditional_authority'),
  #   current_district: attributes.fetch('current_district')
  #   # cell_phone_number: attributes.fetch('cellphone_number'),
  #   # occupation: attributes.fetch('occupation')
  #   )
      {
        birthdate: dde_patient.fetch('birthdate'),
        birthdate_estimated: dde_patient.fetch('birthdate_estimated'),
        gender: dde_patient.fetch('gender'),
        names: [
          {
            given_name: dde_patient.fetch('given_name'),
          family_name: dde_patient.fetch('family_name'),
          middle_name: dde_patient.fetch('middle_name')
          }
        ],
        addresses: [
          {
            address1: attributes.fetch('home_district'),
            address3: attributes.fetch('current_district'),
            county_district: attributes.fetch('home_traditional_authority'),
            state_province: attributes.fetch('current_traditional_authority'),
            address2: attributes.fetch('home_village'),
            city_village: attributes.fetch('current_village')
          }
        ]
      }
end

#find_patient_updates(local_patient_id) ⇒ Object 



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# File 'app/services/dde_service.rb', line 191

def find_patient_updates(local_patient_id)
  dde_doc_id_type = PatientIdentifierType.where(name: 'Dde Person Document ID')
  doc_id = PatientIdentifier.find_by(patient_id: local_patient_id, identifier_type: dde_doc_id_type)
                            &.identifier
  return nil unless doc_id

  remote_patient = find_remote_patients_by_doc_id(doc_id).first
  return nil unless remote_patient

  Matcher.find_differences(Person.find(local_patient_id), remote_patient)
rescue DdeMahisError => e
  Rails.logger.warn("Check for DdeMahis patient updates failed: #{e.message}")
  nil
end

#find_patients_by_name_and_gender(given_name, family_name, gender) ⇒ Object 



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# File 'app/services/dde_service.rb', line 178

def find_patients_by_name_and_gender(given_name, family_name, gender)
  locals = []
  begin
    locals = patient_service.find_patients_by_name_and_gender(given_name, family_name, gender).limit(PATIENT_SEARCH_RESULTS_LIMIT)
    remotes = find_remote_patients_by_name_and_gender(given_name, family_name, gender)

    package_patients(locals, remotes)
  rescue StandardError => e
    Rails.logger.warn("Error packaging patients: #{e.message}")
    package_patients(locals, [])
  end
end

#find_patients_by_npid(npid) ⇒ Object 



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# File 'app/services/dde_service.rb', line 171

def find_patients_by_npid(npid)
  locals = patient_service.find_patients_by_npid(npid).limit(PATIENT_SEARCH_RESULTS_LIMIT)
  remotes = find_remote_patients_by_npid(npid)

  package_patients(locals, remotes, auto_push_singular_local: true)
end

#import_patients_by_doc_id(doc_id) ⇒ Object

Import patients from DdeMahis using doc id



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# File 'app/services/dde_service.rb', line 141

def import_patients_by_doc_id(doc_id)
  doc_id_type = patient_identifier_type('Dde Person Document ID')
  locals = patient_service.find_patients_by_identifier(doc_id, doc_id_type).limit(PATIENT_SEARCH_RESULTS_LIMIT)
  remotes = find_remote_patients_by_doc_id(doc_id)

  import_remote_patient(locals, remotes)
end

#import_patients_by_name_and_gender(given_name, family_name, gender) ⇒ Object

Similar to import_patients_by_npid but uses name and gender instead of npid



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# File 'app/services/dde_service.rb', line 159

def import_patients_by_name_and_gender(given_name, family_name, gender)
  locals = patient_service.find_patients_by_name_and_gender(given_name, family_name, gender).limit(PATIENT_SEARCH_RESULTS_LIMIT)

  remotes = begin
    find_remote_patients_by_name_and_gender(given_name, family_name, gender)
  rescue StandardError
    []
  end

  import_remote_patient(locals, remotes)
end

#import_patients_by_npid(npid) ⇒ Object

Imports patients from DdeMahis to the local database



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# File 'app/services/dde_service.rb', line 150

def import_patients_by_npid(npid)
  doc_id_type = patient_identifier_type('National id')
  locals = patient_service.find_patients_by_identifier(npid, doc_id_type).limit(PATIENT_SEARCH_RESULTS_LIMIT)
  remotes = find_remote_patients_by_npid(npid)

  import_remote_patient(locals, remotes)
end

#match_patients_by_demographics(family_name:, given_name:, birthdate:, gender:, home_district:, home_traditional_authority:, home_village:, birthdate_estimated: 0) ⇒ Object

Matches patients using a bunch of demographics

Raises:



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# File 'app/services/dde_service.rb', line 207

def match_patients_by_demographics(family_name:, given_name:, birthdate:,
                                   gender:, home_district:, home_traditional_authority:,
                                   home_village:, birthdate_estimated: 0)
  response, status = dde_client.post(
    'search/people', family_name: family_name,
                     given_name: given_name,
                     gender: gender,
                     birthdate: birthdate,
                     birthdate_estimated: !birthdate_estimated.zero?,
                     attributes: {
                       home_district: home_district,
                       home_traditional_authority: home_traditional_authority,
                       home_village: home_village
                     }
  )

  raise DdeMahisError, "DdeMahis patient search failed: #{status} - #{response}" unless status == 200

  response.collect do |match|
    doc_id = match['person']['id']
    patient = patient_service.find_patients_by_identifier(
      doc_id, patient_identifier_type('Dde Person Document ID')
    ).first
    match['person']['patient_id'] = patient&.id
    match
  end
end

#merge_patients(primary_patients_ids, secondary_patient_ids) ⇒ Object

Trigger a merge of patients in DdeMahis



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# File 'app/services/dde_service.rb', line 236

def merge_patients(primary_patients_ids, secondary_patient_ids)
  merging_service.merge_patients(primary_patients_ids, secondary_patient_ids)
end

#reassign_patient_npid(patient_ids) ⇒ Object

Raises:

  • (InvalidParameterError) 


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# File 'app/services/dde_service.rb', line 240

def reassign_patient_npid(patient_ids)
  patient_id = patient_ids['patient_id']
  doc_id = patient_ids['doc_id']

  raise InvalidParameterError, 'patient_id and/or doc_id required' if patient_id.blank? && doc_id.blank?

  if doc_id.blank?
    # Only have patient id thus we have patient locally only
    return push_local_patient_to_dde(Patient.find(patient_ids['patient_id']))
  end

  # NOTE: Fail patient retrieval as early as possible before making any
  # changes to DdeMahis (ie if patient_id does not exist)
  patient = patient_id.blank? ? nil : Patient.find(patient_id)

  # We have a doc_id thus we can re-assign npid in DdeMahis
  # Check if person if available in DdeMahis if not add person using doc_id
  response, status = dde_client.post('search_by_doc_id', doc_id: doc_id)
  if !response.blank? && status.to_i == 200
    response, status = dde_client.post('reassign_npid', doc_id: doc_id)
  elsif response.blank? && status.to_i == 200
    return push_local_patient_to_dde(Patient.find(patient_ids['patient_id']))
  end

  unless status == 200 && !response.empty?
    # The DdeMahis's reassign_npid end point responds with a 200 - OK but returns
    # an empty object when patient with given doc_id is not found.
    raise DdeMahisError, "Failed to reassign npid: DdeMahis Response => #{status} - #{response}"
  end

  return save_remote_patient(response) unless patient

  merging_service.link_local_to_remote_patient(patient, response)
end

#remaining_npids ⇒ Object

Raises:



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# File 'app/services/dde_service.rb', line 59

def remaining_npids
  response, status = dde_client.get("/location_npid_status?location_id=#{Location.current_location.id}")
  raise DdeMahisError, "Failed to fetch remaining npids: #{status} - #{response}" unless status == 200

  response
end

#save_remote_patient(remote_patient) ⇒ Object

Convert a DdeMahis person to an openmrs person.

NOTE: This creates a person on the database.



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# File 'app/services/dde_service.rb', line 278

def save_remote_patient(remote_patient)
  LOGGER.debug "Converting DdeMahis person to openmrs: #{remote_patient}"
  params = dde_patient_to_local_person(remote_patient)

  Person.transaction do
    person = person_service.create_person(params)

    patient = Patient.create(patient_id: person.id)
    merging_service.link_local_to_remote_patient(patient, remote_patient)
  end
end

#test_connection ⇒ Object 



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# File 'app/services/dde_service.rb', line 35

def test_connection
  response = { connection_available:  false, message: 'No connection to DdeMahis', status: 500 }
  begin
    result, status = dde_client
    response[:connection_available] = status == 200
    response[:message] = result
  rescue StandardError => exception
    LOGGER.error "Failed to connect to DdeMahis: #{exception.message}"
    response[:message] = exception.message
  end
  response
end

#update_local_patient(patient, update_npid: false) ⇒ Object

Updates local patient with demographics currently in DdeMahis.



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# File 'app/services/dde_service.rb', line 116

def update_local_patient(patient, update_npid: false)
  doc_id = patient_doc_id(patient)
  unless doc_id
    Rails.logger.warn("No DdeMahis doc_id found for patient ##{patient.patient_id}")
    push_local_patient_to_dde(patient)
    return patient
  end

  dde_patient = find_remote_patients_by_doc_id(doc_id).first
  unless dde_patient
    Rails.logger.warn("Couldn't find patient ##{patient.patient_id} in DdeMahis by doc_id ##{doc_id}")
    push_local_patient_to_dde(patient)
    return patient
  end

  if update_npid
    merging_service.link_local_to_remote_patient(patient, dde_patient)
    return patient
  end

  person_service.update_person(patient.person, dde_patient_to_local_person(dde_patient))
  patient
end

#update_patient(patient) ⇒ Object

Updates patient demographics in DdeMahis.

Local patient is not affected in anyway by the update

Raises:



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# File 'app/services/dde_service.rb', line 86

def update_patient(patient)
  dde_patient = openmrs_to_dde_patient(patient)
  response, status = dde_client.post('update_person', dde_patient)

  raise DdeMahisError, "Failed to update person in DdeMahis: #{response}" unless status == 200

  patient
end

#void_patient(patient, reason) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'app/services/dde_service.rb', line 66

def void_patient(patient, reason)
  raise ArgumentError, "Can't request a DdeMahis void for a non-voided patient" unless patient.voided?
  raise ArgumentError, 'void_reason is required' if reason.blank?

  doc_id = PatientIdentifier.unscoped
                            .where(identifier_type: dde_doc_id_type, patient: patient)
                            .order(:date_voided)
                            .last
                            &.identifier
  return patient unless doc_id

  response, status = dde_client.delete("void_person/#{doc_id}?void_reason=#{reason}")
  raise DdeMahisError, "Failed to void person in DdeMahis: #{status} - #{response}" unless status == 200

  patient
end