From 65ca22d960fdce6978df9390f96d55c24a8bc07a Mon Sep 17 00:00:00 2001
From: Tom Wier <thomas@medic.org>
Date: Fri, 16 Aug 2024 14:47:54 +0300
Subject: [PATCH] testing against default project

---
 macros/cht_form_model.sql              | 77 ++++++++++++++++++++++++++
 models/contacts/hierarchy.sql          | 23 ++++++++
 models/forms/pregnancy_danger_sign.sql |  8 +++
 3 files changed, 108 insertions(+)
 create mode 100644 macros/cht_form_model.sql
 create mode 100644 models/contacts/hierarchy.sql
 create mode 100644 models/forms/pregnancy_danger_sign.sql

diff --git a/macros/cht_form_model.sql b/macros/cht_form_model.sql
new file mode 100644
index 00000000..08d7c6b6
--- /dev/null
+++ b/macros/cht_form_model.sql
@@ -0,0 +1,77 @@
+-- a macro defining the resusable columns for all form models
+{% macro data_record_columns() %}
+  data_record.uuid as uuid,
+  data_record.saved_timestamp,
+  data_record.contact_uuid as reported_by,
+  data_record.parent_uuid as reported_by_parent,
+  data_record.reported
+{% endmacro %}
+
+-- a macro defining the resusable indexes for columns above
+{% macro data_record_indexes() %}
+  {{ return([
+    {'columns': ['uuid'], 'type': 'hash'}, 
+    {'columns': ['saved_timestamp']},
+    {'columns': ['reported_by']},
+    {'columns': ['reported_by_parent']},
+    {'columns': ['reported']}
+  ])}}
+{% endmacro %}
+
+-- the from, join and where condition common to form models
+-- selects the form from data record by name
+-- joins back to the source table to get the document
+-- and adds an incremental condition
+{% macro data_record_join(form_name) %}
+  FROM {{ ref('data_record') }} data_record
+  INNER JOIN {{ env_var('POSTGRES_SCHEMA') }}.{{ env_var('POSTGRES_TABLE') }} couchdb ON couchdb._id = data_record.uuid
+  WHERE
+    data_record.form = '{{ form_name }}'
+  {% if is_incremental() %}
+    AND data_record.saved_timestamp >= {{ max_existing_timestamp('saved_timestamp') }}
+  {% endif %}
+{% endmacro %}
+
+-- this macro creates a simple form model
+-- form_name: the name of the form to be selected
+-- form_columns; form speciifc columns
+-- form_indexes; any indexes for the form specific columns
+{% macro cht_form_model(form_name, form_columns, form_indexes=[]) %}
+  {{ cht_form_multi([{'form_name': form_name, 'form_columns': form_columns}], form_indexes) }}
+{% endmacro %}
+
+-- this macro creates a model from a list of cht_forms
+-- forms: [{ 'form_name': the name of the form to be selected,
+--    'form_columns': form speciifc columns }]
+-- form_indexes; any indexes for the form specific columns
+-- each of the forms will be UNIONED together
+-- and should have the same custom columns
+{% macro cht_form_multi(forms, form_indexes=[]) %}
+  -- combine any form specifc indexes with the general 
+  {%- set all_indexes = data_record_indexes() + form_indexes -%}
+
+  -- config common to all form models
+  {{
+    config(
+      materialized='incremental',
+      unique_key='uuid',
+      on_schema_change='append_new_columns',
+      indexes=all_indexes
+    )
+  }}
+
+  -- the actual select; a combination of
+  -- form specific fields
+  -- the common data record fields
+  -- and the common data record from, join and where clause
+  {% for form in forms %}
+    SELECT
+      {{ data_record_columns() }},
+      {{ form.form_columns }}
+    {{ data_record_join(form.form_name) }}
+    -- if there is more than one form, union them together
+    {% if not loop.last %}
+    UNION
+    {% endif %}
+  {% endfor %}
+{% endmacro %}
diff --git a/models/contacts/hierarchy.sql b/models/contacts/hierarchy.sql
new file mode 100644
index 00000000..6290e349
--- /dev/null
+++ b/models/contacts/hierarchy.sql
@@ -0,0 +1,23 @@
+{{
+  config(
+    materialized = 'materialized_view',
+    indexes=[
+      {'columns': ['chw_uuid']},
+      {'columns': ['clinic_uuid']},
+      {'columns': ['health_center_uuid']},
+      {'columns': ['district_hospital_uuid']},
+    ]
+  )
+}}
+
+SELECT
+  chw.uuid as chw_uuid,
+  clinic.uuid as clinic_uuid,
+  health_center.uuid as health_center_uuid,
+  district_hospital.uuid as district_hospital_uuid
+FROM
+  {{ref('contact')}} chw
+  INNER JOIN {{ref('contact')}} clinic ON chw.parent_uuid = clinic.uuid
+  LEFT JOIN {{ref('contact')}} health_center ON clinic.parent_uuid = health_center.uuid
+  LEFT JOIN {{ref('contact')}} district_hospital ON health_center.parent_uuid = district_hospital.uuid
+WHERE chw.contact_type = 'person' AND clinic.contact_type = 'clinic';
diff --git a/models/forms/pregnancy_danger_sign.sql b/models/forms/pregnancy_danger_sign.sql
new file mode 100644
index 00000000..08546151
--- /dev/null
+++ b/models/forms/pregnancy_danger_sign.sql
@@ -0,0 +1,8 @@
+{%- set form_indexes = [
+  {'columns': ['test']}]
+-%}
+{% set form_columns %}
+  NULL as test
+{% endset %}
+{{ cht_form_model('pregnancy_danger_sign', form_columns, form_indexes) }}
+