Feature/other names (#148)

* draft stg_other_name model

* minor updates to model

* rename cols

* remove unnecessary cols

* debug

* Update CHANGELOG.md

---------

Co-authored-by: gnguyen87 <gnguyen@macalester.edu>
Co-authored-by: rlittle08 <rlittle@edanalytics.org>

Author: 3 people

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Unreleased
 
 ## New features
+- Add `stg_ef3__students__other_names`
 ## Under the hood
 ## Fixes
 

models/staging/edfi_3/stage/stg_ef3__students__other_names.sql

@@ -0,0 +1,20 @@
+with students as (
+    select * from {{ ref('stg_ef3__students') }}
+),
+flattened as (
+    select 
+        tenant_code,
+        api_year,
+        k_student,
+        k_student_xyear,
+        {{ extract_descriptor('value:otherNameTypeDescriptor::varchar') }} as other_name_type,
+        value:personalTitlePrefix::varchar as personal_title_prefix,
+        value:firstName::varchar as first_name,
+        value:middleName::varchar as middle_name,
+        value:lastSurname::varchar as last_surname,
+        value:generationCodeSuffix::varchar as generation_code_suffix
+    from students
+        {{ json_flatten('v_other_names') }}
+)
+
+select * from flattened