lmiranda
c9cf744d84
Implement full 5-tab Toronto Neighbourhood Dashboard with real data connectivity: Dashboard Structure: - Overview tab with livability scores and rankings - Housing tab with affordability metrics - Safety tab with crime statistics - Demographics tab with population/income data - Amenities tab with parks, schools, transit Figure Factories (portfolio_app/figures/): - bar_charts.py: ranking, stacked, horizontal bars - scatter.py: scatter plots, bubble charts - radar.py: spider/radar charts - demographics.py: donut, age pyramid, income distribution Service Layer (portfolio_app/toronto/services/): - neighbourhood_service.py: queries dbt marts for all tab data - geometry_service.py: generates GeoJSON from PostGIS - Graceful error handling when database unavailable Callbacks (portfolio_app/pages/toronto/callbacks/): - map_callbacks.py: choropleth updates, map click handling - chart_callbacks.py: supporting chart updates - selection_callbacks.py: dropdown handlers, KPI updates Data Pipeline (scripts/data/): - load_toronto_data.py: orchestration script with CLI flags Lessons Learned: - Graceful error handling in service layers - Modular callback structure for multi-tab dashboards - Figure factory pattern for reusable charts Closes: #64, #65, #66, #67, #68, #69, #70 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
# Project Lessons Learned
|
|
|
|
This folder contains lessons learned from sprints and development work. These lessons help prevent repeating mistakes and capture valuable insights.
|
|
|
|
**Note:** This is a temporary local backup while Wiki.js integration is being configured. Once Wiki.js is ready, lessons will be migrated there for better searchability.
|
|
|
|
---
|
|
|
|
## Lessons Index
|
|
|
|
| Date | Sprint/Phase | Title | Tags |
|
|
|------|--------------|-------|------|
|
|
| 2026-01-17 | Sprint 9-10 | [Graceful Error Handling in Service Layers](./sprint-9-10-graceful-error-handling.md) | python, postgresql, error-handling, dash, graceful-degradation, arm64 |
|
|
| 2026-01-17 | Sprint 9-10 | [Modular Callback Structure](./sprint-9-10-modular-callback-structure.md) | dash, callbacks, architecture, python, code-organization |
|
|
| 2026-01-17 | Sprint 9-10 | [Figure Factory Pattern](./sprint-9-10-figure-factory-pattern.md) | plotly, dash, design-patterns, python, visualization |
|
|
| 2026-01-16 | Phase 4 | [dbt Test Syntax Deprecation](./phase-4-dbt-test-syntax.md) | dbt, testing, yaml, deprecation |
|
|
|
|
---
|
|
|
|
## How to Use
|
|
|
|
### When Starting a Sprint
|
|
1. Review relevant lessons in this folder before implementation
|
|
2. Search by tags or keywords to find applicable insights
|
|
3. Apply prevention strategies from past lessons
|
|
|
|
### When Closing a Sprint
|
|
1. Document any significant lessons learned
|
|
2. Use the template below
|
|
3. Add entry to the index table above
|
|
|
|
---
|
|
|
|
## Lesson Template
|
|
|
|
```markdown
|
|
# [Sprint/Phase] - [Lesson Title]
|
|
|
|
## Context
|
|
[What were you trying to do?]
|
|
|
|
## Problem
|
|
[What went wrong or what insight emerged?]
|
|
|
|
## Solution
|
|
[How did you solve it?]
|
|
|
|
## Prevention
|
|
[How can this be avoided in future sprints?]
|
|
|
|
## Tags
|
|
[Comma-separated tags for search]
|
|
```
|