feat(dbt): Add dbt models

models/orders.sql

@@ -0,0 +1,56 @@
+{% set payment_methods = ['credit_card', 'coupon', 'bank_transfer', 'gift_card'] %}
+
+with orders as (
+
+    select * from {{ ref('stg_orders') }}
+
+),
+
+payments as (
+
+    select * from {{ ref('stg_payments') }}
+
+),
+
+order_payments as (
+
+    select
+        order_id,
+
+        {% for payment_method in payment_methods -%}
+        sum(case when payment_method = '{{ payment_method }}' then amount else 0 end) as {{ payment_method }}_amount,
+        {% endfor -%}
+
+        sum(amount) as total_amount
+
+    from payments
+
+    group by order_id
+
+),
+
+final as (
+
+    select
+        orders.order_id,
+        orders.customer_id,
+        orders.order_date,
+        orders.status,
+
+        {% for payment_method in payment_methods -%}
+
+        order_payments.{{ payment_method }}_amount,
+
+        {% endfor -%}
+
+        order_payments.total_amount as amount
+
+    from orders
+
+
+    left join order_payments
+        on orders.order_id = order_payments.order_id
+
+)
+
+select * from final