🐛 Bugfix: Template variable resolution in generation pipeline produces...

Date: 2026-03-23
Time: 13:53:05 UTC
Session: gspace1-251.5
Agent: angular
Confidence: 98%
Status: ✅ Documented

📋 Decision Context

Question:

Template variable resolution in generation pipeline produces 'undefined' in all generated filenames (models/undefined.model.ts, components/undefined-list/). Root cause?

Task: Not specified

🎯 Decision Made

Chosen:

Fixed variable aliasing mismatch: preGenerateTemplateFiles() set entityName/entityNamePlural but interpolate() read entity/Entity/entities/Entities. Added singularize() to convert plural entity extraction to singular. Added fallback chain in interpolate() for defensive resolution.

Options Considered:

1. Fix only interpolate() to handle aliases
2. Fix only preGenerateTemplateFiles() to set canonical vars
3. Fix both sides with defensive fallbacks (chosen)

💭 Reasoning

Root cause chain: (1) extractPrimaryEntity('manage players') returns 'players' (plural, not singular). (2) preGenerateTemplateFiles sets entityName='players', entityNamePlural='playerses' (double-pluralized). (3) interpolate() replaces {{entity}} with vars.entity which is NEVER SET — only vars.entityName was set. (4) JavaScript replaces undefined → string 'undefined' in .replace(). Fix required three changes: populate ALL canonical template variables (entity, Entity, entities, Entities, ENTITY), add singularize() method, and add fallback chain in interpolate() so aliases map to canonical names if canonical vars are missing.

📁 Files Involved

• APIs/backend-ai-api/src/app/workflow/phase-executor/phase-orchestrator.service.ts
• APIs/backend-ai-api/src/app/workflow/templates/template-registry.service.ts

🔗 Related

• Decision ID: dev_1774273985474_i19atie
• Session: 251
• Workspace: gspace1

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