update standard ecommerce params (#200)

* update standard ecommerce params

* begin_checkout fix

Author: dgitis

models/staging/recommended_events/stg_ga4__event_add_to_cart.sql

@@ -5,6 +5,8 @@
 }}
  with add_to_cart_with_params as (
    select *except (items),
+   {{ ga4.unnest_key('event_params', 'currency') }},
+   {{ ga4.unnest_key('event_params', 'value', 'double_value') }},
    (select items FROM UNNEST(items) items LIMIT 1) as items
     {% if var("default_custom_parameters", "none") != "none" %}
       {{ ga4.stage_custom_parameters( var("default_custom_parameters") )}}

models/staging/recommended_events/stg_ga4__event_begin_checkout.sql

@@ -5,6 +5,9 @@
 }}
  with begin_checkout_with_params as (
    select *
+   , {{ ga4.unnest_key('event_params', 'currency') }}
+   , {{ ga4.unnest_key('event_params', 'value', 'double_value') }}
+   , {{ ga4.unnest_key('event_params', 'coupon') }}
     {% if var("default_custom_parameters", "none") != "none" %}
       {{ ga4.stage_custom_parameters( var("default_custom_parameters") )}}
     {% endif %}

models/staging/recommended_events/stg_ga4__event_remove_from_cart.sql

@@ -4,8 +4,10 @@
   )
 }}
 with remove_from_cart_with_params as (
-  select * except (items),
-  (select items from unnest(items) items limit 1) as items
+  select * except (items)
+  , {{ ga4.unnest_key('event_params', 'currency') }}
+  , {{ ga4.unnest_key('event_params', 'value', 'double_value') }}
+  , (select items from unnest(items) items limit 1) as items
   {% if var("default_custom_parameters", "none") != "none" %}
     {{ ga4.stage_custom_parameters( var("default_custom_parameters") )}}
   {% endif %}

models/staging/recommended_events/stg_ga4__event_view_item.sql

@@ -4,8 +4,10 @@
   )
 }}
 with view_item_with_params as (
-  select * except (items),
-  (select items from unnest(items) items limit 1) as items
+  select * except (items)
+  , {{ ga4.unnest_key('event_params', 'currency') }}
+  , {{ ga4.unnest_key('event_params', 'value', 'double_value') }}
+  , (select items from unnest(items) items limit 1) as items
   {% if var("default_custom_parameters", "none") != "none" %}
     {{ ga4.stage_custom_parameters( var("default_custom_parameters") )}}
   {% endif %}

models/staging/recommended_events/stg_ga4__event_view_item_list.sql

@@ -5,6 +5,8 @@
 }}
 with view_item_list_with_params as (
   select *
+  , {{ ga4.unnest_key('event_params', 'item_list_id') }}
+  , {{ ga4.unnest_key('event_params', 'item_list_name') }}
   {% if var("default_custom_parameters", "none") != "none" %}
     {{ ga4.stage_custom_parameters( var("default_custom_parameters") )}}
   {% endif %}