Atlas Plan
Plans003 2026 02 20 Transform Layer

Progress

2026-02-20 19:26 - T-001

Overview: Scaffolded the new dbt transform package and validated local Python/dbt setup.

Completed:

  • feat(transform): create @packages/transform project config (pyproject.toml, requirements.txt, profiles.yml, dbt_project.yml)
  • feat(transform): create base folder structure (models/staging, models/intermediate, models/marts, tests)
  • chore(transform): run uv venv && uv pip install -r requirements.txt
  • chore(transform): run uv run dbt debug --profiles-dir . --project-dir . successfully

Files:

  • @packages/transform/pyproject.toml
  • @packages/transform/requirements.txt
  • @packages/transform/profiles.yml
  • @packages/transform/dbt_project.yml
  • @packages/transform/tests/.gitkeep

2026-02-20 19:27 - T-002

Overview: Registered all raw DuckDB tables as dbt sources.

Completed:

  • feat(transform): add models/staging/sources.yml for raw_transactions, raw_students, raw_organizations, raw_targets, raw_marketing_activity

Files:

  • @packages/transform/models/staging/sources.yml

2026-02-20 19:29 - T-003

Overview: Implemented stg_transactions with per-year-safe column mapping, casting, and deduplication.

Completed:

  • feat(transform): create stg_transactions.sql using source('raw','raw_transactions')
  • feat(transform): normalize variant_name, period_label, and transactional fields with dynamic column fallback
  • feat(transform): apply TRY_CAST numeric/date handling, empty-row filtering, and ROW_NUMBER dedupe by receipt

Decisions:

  • Added legacy receipt fallback key generation for rows without NO. KWITANSI so downstream tests and joins remain stable.

Files:

  • @packages/transform/models/staging/stg_transactions.sql

2026-02-20 19:31 - T-004

Overview: Implemented stg_students with year-aware intake/date handling and column normalization.

Completed:

  • feat(transform): create stg_students.sql using source('raw','raw_students')
  • feat(transform): map period_label via COALESCE(INTAKE, BULAN/INTAKE) and parse mixed date formats
  • feat(transform): filter non-data/header rows and expose normalized student dimensions

Files:

  • @packages/transform/models/staging/stg_students.sql

2026-02-20 19:33 - T-005

Overview: Implemented resilient stg_targets to handle both named and positional raw columns.

Completed:

  • feat(transform): create stg_targets.sql from source('raw','raw_targets')
  • feat(transform): apply TRY_CAST to target/actual numeric fields and normalize unit naming
  • feat(transform): filter non-target rows and enforce one row per unit via windowed ranking

Decisions:

  • Raw targets in current data load use positional columns (_2, _4, etc.), so model supports both canonical and positional headers.

Files:

  • @packages/transform/models/staging/stg_targets.sql

2026-02-20 19:34 - T-006

Overview: Implemented stg_marketing_activity with channel lead field mapping and defensive fallbacks.

Completed:

  • feat(transform): create stg_marketing_activity.sql from source('raw','raw_marketing_activity')
  • feat(transform): map IG/WA/EMAIL/TELEMARKETING/GTS/BRANDING/FREE CLASS to typed lead columns
  • feat(transform): filter non-data rows and provide entity fallback when tenant column is absent

Files:

  • @packages/transform/models/staging/stg_marketing_activity.sql

2026-02-20 19:36 - T-007

Overview: Added staging schema tests and verified staging quality checks.

Completed:

  • test(transform): create models/staging/schema.yml with not_null, unique, and accepted_values checks
  • test(transform): run uv run dbt test --profiles-dir . --project-dir . and confirm staging tests pass

Files:

  • @packages/transform/models/staging/schema.yml

2026-02-20 19:38 - T-008

Overview: Implemented int_orders join model with normalization and period derivation.

Completed:

  • feat(transform): create int_orders.sql joining transactions and students by receipt or name/period/unit fallback
  • feat(transform): add unit_code_normalized, customer_type, period_year, and period_month derivations
  • feat(transform): keep one best student match per receipt via row-number ranking

Files:

  • @packages/transform/models/intermediate/int_orders.sql

2026-02-20 19:39 - T-009

Overview: Implemented enrollment-only intermediate filter model.

Completed:

  • feat(transform): create int_enrollments.sql selecting from ref('int_orders')
  • feat(transform): exclude non-enrollment categories and non-positive amounts

Files:

  • @packages/transform/models/intermediate/int_enrollments.sql

2026-02-20 19:40 - T-010

Overview: Implemented revenue mart aggregation by unit and period.

Completed:

  • feat(transform): create mart_revenue.sql with SUM(amount), distinct transaction counts, and YYYY-MM period label

Files:

  • @packages/transform/models/marts/mart_revenue.sql

2026-02-20 19:41 - T-011

Overview: Implemented program progress mart for product-level enrollment metrics.

Completed:

  • feat(transform): create mart_program_progress.sql with order, student, and revenue aggregates by program dimensions

Files:

  • @packages/transform/models/marts/mart_program_progress.sql

2026-02-20 19:42 - T-012

Overview: Implemented channel marketing mart with contribution percentage.

Completed:

  • feat(transform): create mart_channel_marketing.sql with closings/students by channel and period
  • feat(transform): compute contribution_pct via window function partitioned by unit and period

Files:

  • @packages/transform/models/marts/mart_channel_marketing.sql

2026-02-20 19:43 - T-013

Overview: Implemented annual school progress mart.

Completed:

  • feat(transform): create mart_school_progress.sql with yearly distinct student counts by organization

Files:

  • @packages/transform/models/marts/mart_school_progress.sql

2026-02-20 19:44 - T-014

Overview: Added mart schema tests and validated mart-level constraints.

Completed:

  • test(transform): create models/marts/schema.yml with required not-null checks
  • test(transform): verify mart tests through full dbt test run

Files:

  • @packages/transform/models/marts/schema.yml

2026-02-20 19:45 - T-015

Overview: Completed full dbt execution verification against real data.

Completed:

  • chore(transform): run uv run dbt run --profiles-dir . --project-dir . (10/10 models PASS)
  • chore(transform): run uv run dbt test --profiles-dir . --project-dir . (15/15 tests PASS)
  • chore(transform): validate marts contain expected units, program rows, channel values (including KBM/Sosial Media), and organization rows

Files:

  • @packages/transform/models/staging/schema.yml
  • @packages/transform/models/marts/schema.yml

2026-02-20 19:46 - T-016

Overview: Updated agent command documentation to include dbt test command usage.

Completed:

  • docs(*): add uv run dbt test under transform pipeline commands in AGENTS

Files:

  • AGENTS.md

2026-02-20 19:48 - Amendment

Overview: Accepted minor plan deviations discovered during compliance review and aligned plan/task text with implemented behavior.

Changes:

  • task: Updated T-003 acceptance wording to allow deterministic fallback receipt keys for legacy rows without NO. KWITANSI.
  • task: Updated T-006 wording to reflect deferred weekly decomposition and resilient monthly/channel mapping with tenant fallback.
  • plan: Marked open implementation questions as resolved in Plan.md.

Rationale:

  • Raw source header inconsistencies require defensive fallbacks to keep dbt run/test stable on real data.
  • The accepted deviations improve reliability without changing the core transform outputs required by downstream plans.

2026-02-20 19:49 - T-015

Overview: Re-verified the full dbt pipeline after a small int_orders normalization cleanup.

Completed:

  • chore(transform): remove duplicate CASE branch in int_orders
  • chore(transform): rerun dbt run and dbt test successfully (10 models, 15 tests)

Files:

  • @packages/transform/models/intermediate/int_orders.sql

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