Reddit Termination Plan - Revision Summary

Date: 2024-12-05
Revision: 1.1
Revised By: AI Agent (Code Review & Current State Analysis)

Purpose

This document summarizes the revisions made to the reddit-termination-plan to make it actionable for AI agent implementation based on the current codebase state.

Key Changes

1. Current State Analysis Added

Files Updated:

  • README.md - Added “Current Codebase Status” section
  • INDEX.md - Added “Pre-Implementation Checklist” and “Implementation Quick Start”

What Changed:

  • Documented existing Django models (Post, Comment, Channel)
  • Identified existing fields (e.g., score already exists as BigIntegerField(null=True))
  • Noted that Base36IntegerField is currently used for primary IDs
  • Clarified that models exist and need updates, not creation from scratch

2. Phase 1 Schema Plan Revised

File: PHASE_1_SCHEMA.md

Major Revisions:

  1. Changed approach from “Create” to “Update”
    • Original plan assumed creating new models
    • Revised to update existing models with new fields
  2. Added “What NOT to Remove” section
    • Critical safety measure: Keep post_id, comment_id during migration
    • Keep Reddit auth models until Phase 7
    • Keep Base36IntegerField class until after data migration
  3. Detailed Migration Strategy
    • 5 specific migrations instead of generic plan
    • Exact field definitions for each migration
    • Code examples for each migration file
    • Testing procedures for each migration
  4. Specified Current vs. Needed State
    • For each model, showed current fields vs. changes needed
    • Highlighted existing fields that just need modification (e.g., score)
    • Identified @property plain_text needs to become stored field
  5. Added Comprehensive Testing Section
    • Specific test cases for new fields
    • CommentTreeNode tree building and traversal tests
    • Migration verification tests
    • Integration tests
  6. Success Criteria & Verification Commands
    • Checklist for Phase 1 completion
    • Exact commands to run for verification
    • Database queries to check indexes

3. Made Instructions AI-Agent Actionable

Changes Throughout:

  1. Specific file paths and line numbers
    • “channels/models.py (starts at line 134)” instead of just “channels/models.py”
  2. Exact code to add
    • Full field definitions with all parameters
    • Not just “add field X” but the complete Django field definition
  3. Step-by-step procedures
    • Phase 1: Run migration 1, test, run migration 2, test, etc.
    • Not just “create migrations”
  4. Test cases included
    • Copy-pasteable test functions
    • Expected outcomes specified
  5. Common issues documented
    • “If X fails, do Y”
    • Migration conflicts, factory issues, etc.

4. Added Context About Original Plan

Throughout documentation:

  • Noted differences between original human-written docs (dual-write approach) and this plan (read-only archive)
  • Referenced original docs/reddit-migration/ docs for historical context
  • Explained why certain approaches were chosen (e.g., Materialized Paths for trees)

What Wasn’t Changed

Phases 2-7 Structure

  • Phase 2-7 documents kept mostly intact
  • They still provide good overall guidance
  • Specific implementation details may need similar revision when starting those phases

Overall Strategy

  • Read-only archive approach: Still valid
  • Timeline (9-13 weeks): Still accurate
  • Phase sequence: Unchanged and correct

GitHub Issues

  • 25 issues in GITHUB_ISSUES.md: Still relevant
  • May need minor adjustments as implementation proceeds

Recommendations for Implementation

Before Starting Phase 1

  1. Create git branch - git checkout -b reddit-termination
  2. Backup current database - Full pg_dump of production
  3. Set up staging environment - Copy of production data
  4. Document current config - Reddit credentials, settings
  5. Review this revision summary - Understand what changed and why

During Phase 1

  1. Follow PHASE_1_SCHEMA.md exactly - It’s now specific to current codebase
  2. Test each migration individually - Don’t batch them
  3. Run tests after each change - pytest channels/models_test.py
  4. Use staging database - Never test on production
  5. Document deviations - If code doesn’t match docs, note why

After Phase 1

  1. Before Phase 2 - Review Phase 2 docs and revise based on Phase 1 learnings
  2. Update this summary - Note any changes made during implementation
  3. Verify success criteria - All checkboxes in Phase 1 must be checked

Files Modified in This Revision

  1. ✅ README.md - Added current state analysis, updated status
  2. ✅ INDEX.md - Added pre-implementation checklist, implementation guide
  3. ✅ PHASE_1_SCHEMA.md - Complete rewrite for current codebase
  4. ✅ REVISION_SUMMARY.md - This file (new)

Files Not Modified (But Should Be Reviewed Before Use)

  • PHASE_2_DATA_MIGRATION.md - Review before Phase 2
  • PHASE_3_VERIFICATION.md - Review before Phase 3
  • PHASE_4_READONLY_API.md - Review before Phase 4
  • PHASES_5_6_7_SUMMARY.md - Review before Phase 5
  • GITHUB_ISSUES.md - Issues still valid but may need adjustment

Version History

  • v1.0 (2024-11-20) - Original AI-generated plan
  • v1.1 (2024-12-05) - Revised based on current codebase analysis

Next Actions

For Project Manager:

  1. Review this revision summary
  2. Approve Phase 1 approach
  3. Schedule kickoff meeting
  4. Create GitHub issues from GITHUB_ISSUES.md

For Developer/AI Agent:

  1. Read PHASE_1_SCHEMA.md completely
  2. Verify current codebase state matches description
  3. Start with Migration 1 (reddit_id fields)
  4. Follow success criteria checklist

For All:

  1. Keep Reddit service running until Phase 6
  2. All work in staging until Phase 6 deployment
  3. Document any deviations from plan
  4. Update this summary as implementation proceeds

Questions? Review INDEX.md for overview and PHASE_1_SCHEMA.md for implementation details.