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✨ feat: Update recruitment database schema with Prisma - NGVM#2

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nigivamu wants to merge 1 commit intoLIDR-academy:mainfrom
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✨ feat: Update recruitment database schema with Prisma - NGVM#2
nigivamu wants to merge 1 commit intoLIDR-academy:mainfrom
nigivamu:main

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@nigivamu nigivamu commented Nov 13, 2025

…frastructure

  • Add comprehensive Prisma schema with recruitment entities (Application, Position, Interview, etc.)
  • Create database migration for new recruitment workflow
  • Add seed data for development environment
  • Configure Jest and testing dependencies
  • Include database documentation and ER diagram

Summary by CodeRabbit

  • New Features

    • Added comprehensive recruitment management system with support for companies, positions, candidates, applications, and interview workflows.
    • Introduced interview flow configuration and automated interview step tracking.
  • Chores

    • Updated testing framework and build tools.
    • Enhanced environment file handling.
  • Documentation

    • Added reference documentation for system domain models and entity architecture.

…frastructure

- Add comprehensive Prisma schema with recruitment entities (Application, Position, Interview, etc.)
- Create database migration for new recruitment workflow
- Add seed data for development environment
- Configure Jest and testing dependencies
- Include database documentation and ER diagram
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coderabbitai bot commented Nov 13, 2025

Walkthrough

This pull request introduces a comprehensive recruitment domain expansion to the database schema with new entities (Company, Employee, Position, Application, Interview-related models), implements a Prisma seed script for sample data initialization, updates development dependencies for testing tooling, documents both current and new entity models, and activates .env file exclusion in git.

Changes

Cohort / File(s) Summary
Configuration & Dependencies
.gitignore, backend/package.json
Uncommented **/.env pattern to ignore environment files. Added Prisma seed script (prisma:seed), updated dev dependencies (@types/jest, jest, ts-jest), and bumped ts-node from ^9.1.1 to ^10.9.2.
Database Schema
backend/prisma/schema.prisma, backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql
Added 10 new recruitment models (Company, Employee, InterviewType, InterviewFlow, InterviewStep, Position, Application, Interview, ApplicationAttachment, ApplicationStatusHistory) with comprehensive indexing strategy. Modified 4 existing models (Candidate, Education, WorkExperience, Resume) to add unique constraints, relations, and performance indices. Migration script defines all tables, constraints, and foreign keys.
Data Initialization
backend/prisma/seed.ts
New TypeScript seed script that populates the database with interview types, interview flows with steps, sample company and employees, and three positions with full recruitment details.
Documentation
prompts/current_entities.md, prompts/new_entities.md, prompts/prompts.md
Added three documentation files: current entity model analysis with ERD and architecture details, new entity relationship diagram for recruitment domain, and expert prompts for database optimization strategy.

Sequence Diagram(s)

sequenceDiagram
    participant npm as npm Script
    participant seed as seed.ts
    participant prisma as Prisma Client
    participant db as PostgreSQL

    npm->>seed: npm run prisma:seed
    seed->>prisma: new PrismaClient()
    prisma->>db: connect()
    
    Note over seed,db: Initialize Data
    seed->>prisma: createMany InterviewTypes
    prisma->>db: INSERT interview_types
    
    seed->>prisma: createMany InterviewFlows<br/>+ InterviewSteps
    prisma->>db: INSERT interview_flows<br/>INSERT interview_steps
    
    seed->>prisma: create Company
    prisma->>db: INSERT companies
    
    seed->>prisma: createMany Employees
    prisma->>db: INSERT employees
    
    seed->>prisma: createMany Positions
    prisma->>db: INSERT positions
    
    Note over seed,db: Complete
    seed->>prisma: Log summary counts
    seed->>prisma: $disconnect()
    prisma->>db: close connection
Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

  • Schema changes: 10 new models with extensive indexing and 4 modified models require thorough validation of relationships, constraints, and index strategy alignment with queries
  • Migration integrity: Large SQL migration must be verified for consistency with Prisma schema definitions and foreign key cascade behaviors
  • Seed data completeness: Review position descriptions, interview flow definitions, and cascading relations to ensure data consistency and business logic correctness
  • Dependency updates: Verify ts-node upgrade compatibility and test tooling integration

Poem

🐰✨ The warren grows with new recruitment dreams,
Positions, interviews, and interview schemes!
With indices gleaming and relations so fine,
Ten models now dance in a hiring design.
The seed sprouts fresh data, so structured and true,
Our system hops forward—there's so much to do!

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. You can run @coderabbitai generate docstrings to improve docstring coverage.
✅ Passed checks (2 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly identifies the main change: updating the recruitment database schema with Prisma, which aligns with the substantial schema additions and migrations throughout the changeset.
✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment

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Actionable comments posted: 7

🧹 Nitpick comments (2)
prompts/new_entities.md (1)

1-88: Verify naming convention consistency between diagram and implementation.

The ER diagram uses mixed naming conventions:

  • Foreign keys use snake_case (e.g., company_id, interview_flow_id)
  • CANDIDATE fields use camelCase (e.g., firstName, lastName)
  • Other entity fields use lowercase (e.g., name, email)

The actual Prisma schema implementation uses camelCase for all fields (e.g., companyId, firstName). While this is documentation and doesn't affect runtime behavior, maintaining consistency between documentation and implementation helps prevent confusion.

Consider updating the diagram to match the Prisma schema's camelCase convention:

  COMPANY {
      int id PK
      string name
  }
  EMPLOYEE {
      int id PK
-     int company_id FK
+     int companyId FK
      string name
      ...
backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql (1)

2-11: Consider VARCHAR length for phone numbers.

The phone field is defined as VARCHAR(15) in both Candidate (line 7) and Employee (line 72) tables. International phone numbers with country codes and extensions can exceed 15 characters (e.g., +1-555-0123 ext. 4567 is 23 characters).

Consider increasing to VARCHAR(20) or VARCHAR(25) to accommodate international formats:

"phone" VARCHAR(25),

Also applies to: 66-81

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between eba3f29 and cd83073.

⛔ Files ignored due to path filters (2)
  • backend/package-lock.json is excluded by !**/package-lock.json
  • prompts/LTIdb - dbeaver final diagram.png is excluded by !**/*.png
📒 Files selected for processing (8)
  • .gitignore (1 hunks)
  • backend/package.json (2 hunks)
  • backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql (1 hunks)
  • backend/prisma/schema.prisma (3 hunks)
  • backend/prisma/seed.ts (1 hunks)
  • prompts/current_entities.md (1 hunks)
  • prompts/new_entities.md (1 hunks)
  • prompts/prompts.md (1 hunks)
🧰 Additional context used
🪛 LanguageTool
prompts/current_entities.md

[grammar] ~1-~1: Aquí puede haber un error.
Context: # Análisis de Entidades del Backend - AI4Devs Candidate System ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~1-~1: Aquí puede haber un error.
Context: # Análisis de Entidades del Backend - AI4Devs Candidate System ## Resumen ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~1-~1: Aquí puede haber un error.
Context: ...s del Backend - AI4Devs Candidate System ## Resumen Ejecutivo El backend del sistem...

(QB_NEW_ES)


[grammar] ~3-~3: Aquí puede haber un error.
Context: ... - AI4Devs Candidate System ## Resumen Ejecutivo El backend del sistema AI4Devs está impl...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~5-~5: Aquí puede haber un error.
Context: ...ción, experiencia laboral y currículums. ## Entidades Principales ### 1. Candidate ...

(QB_NEW_ES)


[grammar] ~7-~7: Aquí puede haber un error.
Context: ...ia laboral y currículums. ## Entidades Principales ### 1. Candidate (Candidato) **Entidad centr...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~10-~10: Aquí puede haber un error.
Context: ...l sistema que representa a un postulante** Atributos: - id: Identificador único...

(QB_NEW_ES)


[grammar] ~18-~18: Aquí puede haber un error.
Context: ...: Dirección opcional (String, 100 chars) Relaciones: - Uno a muchos con Educati...

(QB_NEW_ES)


[grammar] ~23-~23: Aquí puede haber un error.
Context: ...WorkExperience - Uno a muchos con Resume ### 2. Education (Educación) **Registra la f...

(QB_NEW_ES)


[grammar] ~26-~26: Aquí puede haber un error.
Context: ...la formación académica de los candidatos** Atributos: - id: Identificador único...

(QB_NEW_ES)


[grammar] ~34-~34: Aquí puede haber un error.
Context: ...didateId`: Referencia al candidato (Int) Relaciones: - Muchos a uno con Candida...

(QB_NEW_ES)


[grammar] ~37-~37: Aquí puede haber un error.
Context: ...laciones:** - Muchos a uno con Candidate ### 3. WorkExperience (Experiencia Laboral) ...

(QB_NEW_ES)


[grammar] ~40-~40: Aquí puede haber un error.
Context: ...xperiencia profesional de los candidatos** Atributos: - id: Identificador único...

(QB_NEW_ES)


[grammar] ~49-~49: Aquí puede haber un error.
Context: ...didateId`: Referencia al candidato (Int) Relaciones: - Muchos a uno con Candida...

(QB_NEW_ES)


[grammar] ~52-~52: Aquí puede haber un error.
Context: ...laciones:** - Muchos a uno con Candidate ### 4. Resume (Currículum) **Almacena los ar...

(QB_NEW_ES)


[grammar] ~55-~55: Aquí puede haber un error.
Context: ...ena los archivos de CV de los candidatos** Atributos: - id: Identificador único...

(QB_NEW_ES)


[grammar] ~62-~62: Aquí puede haber un error.
Context: ...didateId`: Referencia al candidato (Int) Relaciones: - Muchos a uno con Candida...

(QB_NEW_ES)


[grammar] ~65-~65: Aquí puede haber un error.
Context: ...laciones:** - Muchos a uno con Candidate ## Diagrama de Relaciones de Entidades (ERD...

(QB_NEW_ES)


[grammar] ~67-~67: Aquí puede haber un error.
Context: ...iagrama de Relaciones de Entidades (ERD) mermaid erDiagram Candidate { int id PK string firstName string lastName string email UK string phone string address } Education { int id PK string institution string title datetime startDate datetime endDate int candidateId FK } WorkExperience { int id PK string company string position string description datetime startDate datetime endDate int candidateId FK } Resume { int id PK string filePath string fileType datetime uploadDate int candidateId FK } Candidate ||--o{ Education : "tiene" Candidate ||--o{ WorkExperience : "tiene" Candidate ||--o{ Resume : "tiene" ## Arquitectura del Dominio ### Implementa...

(QB_NEW_ES)


[grammar] ~112-~112: Aquí puede haber un error.
Context: ...sume : "tiene" ``` ## Arquitectura del Dominio ### Implementación en TypeScript El sistema...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~118-~118: Aquí puede haber un error.
Context: ...n las siguientes características: 1. Modelos de Dominio: Cada entidad tiene su pro...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_OTHER)


[grammar] ~118-~118: Aquí puede haber un error.
Context: ...entes características: 1. Modelos de Dominio: Cada entidad tiene su propia clase T...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~118-~118: Aquí puede haber un error.
Context: ...e TypeScript con métodos de persistencia 2. Validaciones: Implementadas en el serv...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~119-~119: Aquí puede haber un error.
Context: ... servicio de validación (validator.ts) 3. Servicios de Aplicación: Orquestan las...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~120-~120: Aquí puede haber un error.
Context: ...ción (validator.ts) 3. Servicios de Aplicación: Orquestan las operaciones de negocio...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~120-~120: Aquí puede haber un error.
Context: ...**: Orquestan las operaciones de negocio 4. Controladores: Exponen los endpoints R...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~121-~121: Aquí puede haber un error.
Context: ...adores**: Exponen los endpoints REST API ### Patrones de Persistencia - **Active Rec...

(QB_NEW_ES)


[grammar] ~123-~123: Aquí puede haber un error.
Context: ...los endpoints REST API ### Patrones de Persistencia - Active Record Pattern: Los modelos de ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~125-~125: Aquí puede haber un error.
Context: ... API ### Patrones de Persistencia - Active Record Pattern: Los modelos de domini...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_OTHER)


[grammar] ~125-~125: Aquí puede haber un error.
Context: ...luyen métodos save() para persistencia - Prisma Client: Utilizado como ORM para...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~126-~126: Aquí puede haber un error.
Context: ...como ORM para interactuar con PostgreSQL - Transacciones Implícitas: Prisma manej...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~127-~127: Aquí puede haber un error.
Context: ...maneja las transacciones automáticamente ### Operaciones Principales 1. **Creación d...

(QB_NEW_ES)


[grammar] ~129-~129: Aquí puede haber un error.
Context: ...ciones automáticamente ### Operaciones Principales 1. Creación de Candidatos: - Validaci...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~131-~131: Aquí puede haber un error.
Context: ...eraciones Principales 1. Creación de Candidatos: - Validación de datos de entrada...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~134-~134: Aquí puede haber un error.
Context: ...elacionados (educación, experiencia, CV) 2. Consulta de Candidatos: - Búsqueda ...

(QB_NEW_ES)


[grammar] ~136-~136: Aquí puede haber un error.
Context: ...ión, experiencia, CV) 2. Consulta de Candidatos: - Búsqueda por ID con relaciones ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~138-~138: Aquí puede haber un error.
Context: ...uidas - Manejo de errores de conexión 3. Gestión de Archivos: - Upload de ar...

(QB_NEW_ES)


[grammar] ~140-~140: Aquí puede haber un error.
Context: ... - Manejo de errores de conexión 3. Gestión de Archivos: - Upload de archivos ...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_OTHER)


[grammar] ~140-~140: Aquí puede haber un error.
Context: ...de errores de conexión 3. Gestión de Archivos: - Upload de archivos CV (PDF, DOC...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~142-~142: Aquí puede haber un error.
Context: ...cenamiento de metadatos en base de datos ## Características Técnicas ### Base de Da...

(QB_NEW_ES)


[grammar] ~144-~144: Aquí puede haber un error.
Context: ...os en base de datos ## Características Técnicas ### Base de Datos - PostgreSQL: Sistema ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~146-~146: Aquí puede haber un error.
Context: ...# Características Técnicas ### Base de Datos - PostgreSQL: Sistema de base de datos r...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~147-~147: Aquí puede haber un error.
Context: ...PostgreSQL*: Sistema de base de datos relacional - Prisma Migrations: Control de versione...

(QB_NEW_ES)


[grammar] ~148-~148: Aquí puede haber un error.
Context: ... Migrations**: Control de versiones del esquema - Constraints: Validaciones a nivel de b...

(QB_NEW_ES)


[style] ~149-~149: En sentido figurado es preferible usar otras expresiones.
Context: ...esquema - Constraints: Validaciones a nivel de base de datos (unique, not null, foreig...

(A_NIVEL_DE)


[grammar] ~149-~149: Aquí puede haber un error.
Context: ...e datos (unique, not null, foreign keys) ### API REST - Express.js: Framework web...

(QB_NEW_ES)


[grammar] ~156-~156: Aquí puede haber un error.
Context: ... - POST /upload: Subir archivos de CV ### Validaciones - Email único: Constrai...

(QB_NEW_ES)


[style] ~159-~159: En sentido figurado es preferible usar otras expresiones.
Context: ...idaciones - Email único: Constraint a nivel de base de datos - **Validaciones de forma...

(A_NIVEL_DE)


[grammar] ~161-~161: Aquí puede haber un error.
Context: ...e longitud**: Límites en campos de texto ## Consideraciones de Diseño 1. **Escalabi...

(QB_NEW_ES)


[grammar] ~163-~163: Aquí puede haber un error.
Context: ... campos de texto ## Consideraciones de Diseño 1. Escalabilidad: El diseño permite manej...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~165-~165: Aquí puede haber un error.
Context: ...ar múltiples registros relacionados por candidato 2. Integridad Referencial: Foreign ...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_PUNCTUATION)


[grammar] ~166-~166: Aquí puede haber un error.
Context: ...acionados por candidato 2. Integridad Referencial: Foreign keys aseguran consistencia d...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~166-~166: Aquí puede haber un error.
Context: ...: Foreign keys aseguran consistencia de datos 3. Flexibilidad: Campos opcionales ...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_PUNCTUATION)


[grammar] ~167-~167: Aquí puede haber un error.
Context: ...ionales permiten diferentes perfiles de candidatos 4. Auditoría: Fechas en registros p...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_PUNCTUATION)


[grammar] ~168-~168: Aquí puede haber un error.
Context: ... registros permiten seguimiento temporal ## Posibles Mejoras 1. Indexación: Agr...

(QB_NEW_ES)


[grammar] ~170-~170: Aquí puede haber un error.
Context: ...miten seguimiento temporal ## Posibles Mejoras 1. Indexación: Agregar índices en campos ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_ORTHOGRAPHY_UPPERCASE)


[grammar] ~172-~172: Aquí puede haber un error.
Context: ...nto temporal ## Posibles Mejoras 1. Indexación: Agregar índices en campos frecuentem...

(QB_NEW_ES_OTHER_ERROR_IDS_MISSING_OTHER)


[grammar] ~172-~172: Aquí puede haber un error.
Context: ...ces en campos frecuentemente consultados 2. Soft Deletes: Implementar eliminación ...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~173-~173: Aquí puede haber un error.
Context: ...mentar eliminación lógica para auditoría 3. Caching: Implementar caché para consul...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~174-~174: Aquí puede haber un error.
Context: ...lementar caché para consultas frecuentes 4. Paginación: Para listados de candidato...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~175-~175: Aquí puede haber un error.
Context: ...aginación**: Para listados de candidatos 5. Validaciones Adicionales: Reglas de ne...

(QB_NEW_ES_OTHER_ERROR_IDS_REPLACEMENT_OTHER)


[grammar] ~176-~176: Aquí puede haber un error.
Context: ...nales**: Reglas de negocio más complejas ## Conclusión El sistema presenta una arqu...

(QB_NEW_ES)

prompts/prompts.md

[grammar] ~9-~9: Aquí puede haber un error.
Context: ...ra expandir el sistema` --- 🚀 Estado Final El sistema AI4Devs ha sido transformado...

(QB_NEW_ES)

🪛 markdownlint-cli2 (0.18.1)
prompts/current_entities.md

10-10: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)


26-26: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)


40-40: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)


55-55: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)

🔇 Additional comments (8)
.gitignore (1)

3-3: LGTM! Essential security practice.

Activating the .env exclusion pattern is the correct approach to prevent accidentally committing sensitive environment variables (such as DATABASE_URL) to version control.

backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql (1)

357-400: Well-designed foreign key constraints with appropriate ON DELETE behaviors.

The migration uses appropriate referential integrity actions:

  • ON DELETE RESTRICT for critical relationships (prevents accidental data loss)
  • ON DELETE SET NULL for optional relationships (Position.interviewFlowId)
  • ON UPDATE CASCADE throughout for ID updates

This design protects data integrity while maintaining flexibility.

backend/package.json (2)

12-18: Prisma seed configuration looks good.

The seed script is properly wired in both the scripts section (line 12) and the prisma configuration block (lines 16-18), which is the recommended approach for Prisma seeding.


14-14: The Jest configuration already exists and is properly configured; no action needed.

The review comment's premise is incorrect. The verification reveals that jest.config.js does exist at backend/jest.config.js and contains a valid configuration with the ts-jest preset, node test environment, and appropriate test patterns. Additionally, all required dependencies (jest, ts-jest, and @types/jest) are present in the package.json devDependencies. The suggestion to create a Jest configuration file is unnecessary and the original concern is unfounded.

Likely an incorrect or invalid review comment.

backend/prisma/seed.ts (2)

10-40: Seed data is well-structured and comprehensive.

The seed script creates realistic, well-formed test data with:

  • Proper email formats and phone numbers
  • Comprehensive position details including salary ranges, deadlines, and requirements
  • Logical relationships between entities
  • Appropriate data for both technical and non-technical roles

Also applies to: 123-247


259-266: Error handling and cleanup properly implemented.

The script correctly handles errors and ensures Prisma client disconnection in the finally block, preventing connection leaks.

backend/prisma/schema.prisma (2)

21-36: Excellent indexing strategy for existing entities.

The updated Candidate, Education, WorkExperience, and Resume models now include well-designed indexes that will optimize common query patterns:

  • Name-based searches on candidates
  • Email lookups
  • Candidate-related record retrieval
  • Institution and company filtering

Also applies to: 38-50, 52-65, 67-78


84-321: Comprehensive and well-normalized recruitment domain model.

The new entities demonstrate strong database design:

  • Proper normalization with separate entities for Companies, Employees, Positions, Applications, and Interviews
  • Support entities (ApplicationAttachment, ApplicationStatusHistory) enable audit trails
  • Flexible interview workflow system (InterviewFlow → InterviewStep → InterviewType)
  • Extensive composite indexes for optimizing multi-column queries
  • Appropriate use of unique constraints to prevent duplicates
  • Strategic use of nullable foreign keys where optionality makes sense

Comment on lines +167 to +183
CREATE TABLE "Interview" (
"id" SERIAL NOT NULL,
"applicationId" INTEGER NOT NULL,
"interviewStepId" INTEGER NOT NULL,
"employeeId" INTEGER NOT NULL,
"interviewDate" TIMESTAMP(3) NOT NULL,
"duration" INTEGER,
"result" VARCHAR(50),
"score" INTEGER,
"notes" TEXT,
"feedback" TEXT,
"scheduledBy" INTEGER,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
"updatedAt" TIMESTAMP(3) NOT NULL,

CONSTRAINT "Interview_pkey" PRIMARY KEY ("id")
);
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⚠️ Potential issue | 🟠 Major

Missing foreign key constraint for scheduledBy field.

Line 178 defines scheduledBy as an integer field that likely references an Employee, but no foreign key constraint is added. This can lead to orphaned references if the scheduling employee is deleted or if invalid IDs are inserted.

Add a foreign key constraint for data integrity:

-- AddForeignKey
ALTER TABLE "Interview" ADD CONSTRAINT "Interview_scheduledBy_fkey" FOREIGN KEY ("scheduledBy") REFERENCES "Employee"("id") ON DELETE SET NULL ON UPDATE CASCADE;

Note: Use ON DELETE SET NULL since scheduledBy is nullable and the interview should remain valid even if the scheduling employee is removed from the system.

🤖 Prompt for AI Agents
In
backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql
around lines 167-183, the "Interview" table defines a nullable integer column
"scheduledBy" but does not add a foreign key constraint; add an ALTER TABLE
statement to create a foreign key constraint named "Interview_scheduledBy_fkey"
that references "Employee"(id) and use ON DELETE SET NULL and ON UPDATE CASCADE
so the column is nulled when the referenced employee is removed and updated on
employee id changes.

Comment on lines +186 to +198
CREATE TABLE "ApplicationAttachment" (
"id" SERIAL NOT NULL,
"applicationId" INTEGER NOT NULL,
"fileName" VARCHAR(255) NOT NULL,
"filePath" VARCHAR(500) NOT NULL,
"fileSize" INTEGER NOT NULL,
"mimeType" VARCHAR(100) NOT NULL,
"description" VARCHAR(500),
"uploadedBy" INTEGER,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

CONSTRAINT "ApplicationAttachment_pkey" PRIMARY KEY ("id")
);
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⚠️ Potential issue | 🟠 Major

Missing foreign key constraint for uploadedBy field.

Line 194 defines uploadedBy as an integer field that likely references an Employee, but no foreign key constraint is added. This creates a risk of orphaned references.

Add a foreign key constraint:

-- AddForeignKey
ALTER TABLE "ApplicationAttachment" ADD CONSTRAINT "ApplicationAttachment_uploadedBy_fkey" FOREIGN KEY ("uploadedBy") REFERENCES "Employee"("id") ON DELETE SET NULL ON UPDATE CASCADE;
🤖 Prompt for AI Agents
In
backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql
around lines 186-198, the "ApplicationAttachment" table declares an integer
uploadedBy column but lacks a foreign key constraint; add an ALTER TABLE
statement to add constraint "ApplicationAttachment_uploadedBy_fkey" making
uploadedBy reference "Employee"(id) with ON DELETE SET NULL and ON UPDATE
CASCADE so orphaned references are prevented and updates cascade.

Comment on lines +200 to +211
-- CreateTable
CREATE TABLE "ApplicationStatusHistory" (
"id" SERIAL NOT NULL,
"applicationId" INTEGER NOT NULL,
"oldStatus" VARCHAR(50),
"newStatus" VARCHAR(50) NOT NULL,
"changedBy" INTEGER,
"notes" TEXT,
"createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,

CONSTRAINT "ApplicationStatusHistory_pkey" PRIMARY KEY ("id")
);
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⚠️ Potential issue | 🟠 Major

Missing foreign key constraint for changedBy field.

Line 206 defines changedBy as an integer field that likely references an Employee, but no foreign key constraint is added.

Add a foreign key constraint to maintain referential integrity:

-- AddForeignKey
ALTER TABLE "ApplicationStatusHistory" ADD CONSTRAINT "ApplicationStatusHistory_changedBy_fkey" FOREIGN KEY ("changedBy") REFERENCES "Employee"("id") ON DELETE SET NULL ON UPDATE CASCADE;
🤖 Prompt for AI Agents
In
backend/prisma/migrations/20251111022517_add_recruitment_entities/migration.sql
around lines 200 to 211 the "changedBy" column on ApplicationStatusHistory is
defined as an INTEGER but lacks a foreign key constraint; add an ALTER TABLE
statement to add constraint "ApplicationStatusHistory_changedBy_fkey" that
references Employee(id) with ON DELETE SET NULL and ON UPDATE CASCADE to
maintain referential integrity and allow nulling when the referenced employee is
removed.

Comment on lines +252 to +280
model Interview {
id Int @id @default(autoincrement())
applicationId Int
interviewStepId Int
employeeId Int
interviewDate DateTime
duration Int? // Duración real en minutos
result String? @db.VarChar(50) // pass, fail, pending, no_show
score Int? // Puntuación 1-10
notes String? @db.Text
feedback String? @db.Text
scheduledBy Int? // Employee who scheduled the interview
createdAt DateTime @default(now())
updatedAt DateTime @updatedAt

// Relaciones
application Application @relation(fields: [applicationId], references: [id])
interviewStep InterviewStep @relation(fields: [interviewStepId], references: [id])
employee Employee @relation(fields: [employeeId], references: [id])

// Índices para rendimiento
@@unique([applicationId, interviewStepId], map: "uniq_interview_application_step")
@@index([applicationId], map: "idx_interview_application")
@@index([interviewStepId], map: "idx_interview_step")
@@index([employeeId], map: "idx_interview_employee")
@@index([interviewDate], map: "idx_interview_date")
@@index([interviewDate, employeeId], map: "idx_interview_date_employee")
@@index([result], map: "idx_interview_result")
}
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⚠️ Potential issue | 🟠 Major

Missing relation definition for scheduledBy field.

Line 263 defines scheduledBy as Int? to store the employee who scheduled the interview, but there's no corresponding @relation attribute. This prevents Prisma from enforcing referential integrity and makes it impossible to query the scheduling employee through Prisma's type-safe API.

Add the relation definition:

 model Interview {
   id              Int       @id @default(autoincrement())
   applicationId   Int
   interviewStepId Int
   employeeId      Int
   interviewDate   DateTime
   duration        Int?
   result          String?   @db.VarChar(50)
   score           Int?
   notes           String?   @db.Text
   feedback        String?   @db.Text
   scheduledBy     Int?
   createdAt       DateTime  @default(now())
   updatedAt       DateTime  @updatedAt
   
   // Relaciones
   application     Application  @relation(fields: [applicationId], references: [id])
   interviewStep   InterviewStep @relation(fields: [interviewStepId], references: [id])
   employee        Employee     @relation(fields: [employeeId], references: [id])
+  scheduler       Employee?    @relation("ScheduledInterviews", fields: [scheduledBy], references: [id], onDelete: SetNull)

Also update the Employee model to include the back-relation:

 model Employee {
   // ... existing fields ...
   company     Company   @relation(fields: [companyId], references: [id])
   interviews  Interview[]
+  scheduledInterviews Interview[] @relation("ScheduledInterviews")

Committable suggestion skipped: line range outside the PR's diff.

Comment on lines +286 to +303
model ApplicationAttachment {
id Int @id @default(autoincrement())
applicationId Int
fileName String @db.VarChar(255)
filePath String @db.VarChar(500)
fileSize Int // Tamaño en bytes
mimeType String @db.VarChar(100)
description String? @db.VarChar(500)
uploadedBy Int? // Employee who uploaded the file
createdAt DateTime @default(now())

// Relaciones
application Application @relation(fields: [applicationId], references: [id])

// Índices para rendimiento
@@index([applicationId], map: "idx_attachment_application")
@@index([mimeType], map: "idx_attachment_mime_type")
}
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⚠️ Potential issue | 🟠 Major

Missing relation definition for uploadedBy field.

Line 294 defines uploadedBy as Int? but lacks a @relation attribute to link it to the Employee model.

Add the relation:

 model ApplicationAttachment {
   id            Int       @id @default(autoincrement())
   applicationId Int
   fileName      String    @db.VarChar(255)
   filePath      String    @db.VarChar(500)
   fileSize      Int
   mimeType      String    @db.VarChar(100)
   description   String?   @db.VarChar(500)
   uploadedBy    Int?
   createdAt     DateTime  @default(now())
   
   // Relaciones
   application   Application @relation(fields: [applicationId], references: [id])
+  uploader      Employee?   @relation("UploadedAttachments", fields: [uploadedBy], references: [id], onDelete: SetNull)

Update Employee model:

 model Employee {
   // ... existing fields ...
   interviews  Interview[]
+  uploadedAttachments ApplicationAttachment[] @relation("UploadedAttachments")

Committable suggestion skipped: line range outside the PR's diff.

🤖 Prompt for AI Agents
In backend/prisma/schema.prisma around lines 286 to 303, the
ApplicationAttachment model defines uploadedBy Int? but lacks a @relation to
Employee; add a nullable relation field to ApplicationAttachment (e.g., employee
UploadedBy? or employee Employee? ) that uses @relation(fields: [uploadedBy],
references: [id]) and keep uploadedBy as the FK Int?; also add the reciprocal
relation array field on the Employee model (e.g., applicationAttachments
ApplicationAttachment[]) and optionally add @@index([uploadedBy]) to
ApplicationAttachment for query performance so the FK is properly modeled and
navigable from both sides.

Comment on lines +305 to 321
model ApplicationStatusHistory {
id Int @id @default(autoincrement())
applicationId Int
oldStatus String? @db.VarChar(50)
newStatus String @db.VarChar(50)
changedBy Int? // Employee who made the change
notes String? @db.Text
createdAt DateTime @default(now())

// Relaciones
application Application @relation(fields: [applicationId], references: [id])

// Índices para rendimiento
@@index([applicationId], map: "idx_status_history_application")
@@index([newStatus], map: "idx_status_history_new_status")
@@index([createdAt], map: "idx_status_history_created")
} No newline at end of file
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⚠️ Potential issue | 🟠 Major

Missing relation definition for changedBy field.

Line 310 defines changedBy as Int? but doesn't include a @relation to Employee.

Add the relation:

 model ApplicationStatusHistory {
   id            Int       @id @default(autoincrement())
   applicationId Int
   oldStatus     String?   @db.VarChar(50)
   newStatus     String    @db.VarChar(50)
   changedBy     Int?
   notes         String?   @db.Text
   createdAt     DateTime  @default(now())
   
   // Relaciones
   application   Application @relation(fields: [applicationId], references: [id])
+  changedByEmployee Employee? @relation("StatusChanges", fields: [changedBy], references: [id], onDelete: SetNull)

Update Employee model:

 model Employee {
   // ... existing fields ...
   interviews  Interview[]
+  statusChanges ApplicationStatusHistory[] @relation("StatusChanges")

Committable suggestion skipped: line range outside the PR's diff.

🤖 Prompt for AI Agents
In backend/prisma/schema.prisma around lines 305 to 321, the
ApplicationStatusHistory.changedBy field is declared as Int? but lacks a
@relation to the Employee model; add a relation on changedBy that references
Employee.id (e.g., changedBy Int? @relation(fields: [changedBy], references:
[id]) or using a distinct relation name if needed) and add the corresponding
relation field on the Employee model (e.g., statusChangeHistories
ApplicationStatusHistory[] with the same relation name) so Prisma understands
the two-way foreign key relationship and generates the proper foreign key
constraint and navigation properties.

Comment on lines +5 to +257
async function main() {
console.log('🌱 Starting database seeding...');

// Crear tipos de entrevista básicos
console.log('📝 Creating interview types...');
const phoneScreening = await prisma.interviewType.create({
data: {
name: 'Phone Screening',
description: 'Initial phone interview to assess basic qualifications',
duration: 30,
},
});

const technicalInterview = await prisma.interviewType.create({
data: {
name: 'Technical Interview',
description: 'In-depth technical assessment',
duration: 60,
},
});

const behavioralInterview = await prisma.interviewType.create({
data: {
name: 'Behavioral Interview',
description: 'Assessment of cultural fit and soft skills',
duration: 45,
},
});

const finalInterview = await prisma.interviewType.create({
data: {
name: 'Final Interview',
description: 'Final decision-making interview with management',
duration: 60,
},
});

// Crear flujo de entrevista estándar para posiciones técnicas
console.log('🔄 Creating technical interview flow...');
const technicalFlow = await prisma.interviewFlow.create({
data: {
name: 'Standard Technical Flow',
description: 'Standard interview process for technical positions',
},
});

// Agregar pasos al flujo técnico
await prisma.interviewStep.createMany({
data: [
{
interviewFlowId: technicalFlow.id,
interviewTypeId: phoneScreening.id,
name: 'Initial Phone Screen',
description: 'Initial screening to verify basic qualifications and interest',
orderIndex: 1,
},
{
interviewFlowId: technicalFlow.id,
interviewTypeId: technicalInterview.id,
name: 'Technical Assessment',
description: 'Technical interview with development team',
orderIndex: 2,
},
{
interviewFlowId: technicalFlow.id,
interviewTypeId: behavioralInterview.id,
name: 'Behavioral Interview',
description: 'Cultural fit and behavioral assessment',
orderIndex: 3,
},
{
interviewFlowId: technicalFlow.id,
interviewTypeId: finalInterview.id,
name: 'Final Interview',
description: 'Final interview with hiring manager',
orderIndex: 4,
},
],
});

// Crear flujo de entrevista para posiciones no técnicas
console.log('🔄 Creating non-technical interview flow...');
const nonTechnicalFlow = await prisma.interviewFlow.create({
data: {
name: 'Standard Non-Technical Flow',
description: 'Standard interview process for non-technical positions',
},
});

// Agregar pasos al flujo no técnico
await prisma.interviewStep.createMany({
data: [
{
interviewFlowId: nonTechnicalFlow.id,
interviewTypeId: phoneScreening.id,
name: 'Initial Phone Screen',
description: 'Initial screening to verify basic qualifications and interest',
orderIndex: 1,
},
{
interviewFlowId: nonTechnicalFlow.id,
interviewTypeId: behavioralInterview.id,
name: 'HR Interview',
description: 'HR interview to assess cultural fit and experience',
orderIndex: 2,
},
{
interviewFlowId: nonTechnicalFlow.id,
interviewTypeId: finalInterview.id,
name: 'Final Interview',
description: 'Final interview with department head',
orderIndex: 3,
},
],
});

// Crear empresa de ejemplo
console.log('🏢 Creating sample company...');
const sampleCompany = await prisma.company.create({
data: {
name: 'Tech Solutions Inc.',
description: 'Leading technology company specializing in software development and consulting',
website: 'https://techsolutions.example.com',
industry: 'Technology',
size: '201-500',
location: 'San Francisco, CA',
},
});

// Crear empleados de ejemplo
console.log('👥 Creating sample employees...');
const hrManager = await prisma.employee.create({
data: {
companyId: sampleCompany.id,
firstName: 'Sarah',
lastName: 'Johnson',
email: 'sarah.johnson@techsolutions.example.com',
phone: '+1-555-0101',
role: 'HR Manager',
department: 'Human Resources',
},
});

const techLead = await prisma.employee.create({
data: {
companyId: sampleCompany.id,
firstName: 'Michael',
lastName: 'Chen',
email: 'michael.chen@techsolutions.example.com',
phone: '+1-555-0102',
role: 'Technical Lead',
department: 'Engineering',
},
});

const seniorDev = await prisma.employee.create({
data: {
companyId: sampleCompany.id,
firstName: 'Emily',
lastName: 'Rodriguez',
email: 'emily.rodriguez@techsolutions.example.com',
phone: '+1-555-0103',
role: 'Senior Developer',
department: 'Engineering',
},
});

// Crear posiciones de ejemplo
console.log('💼 Creating sample positions...');
const seniorPosition = await prisma.position.create({
data: {
companyId: sampleCompany.id,
interviewFlowId: technicalFlow.id,
title: 'Senior Software Engineer',
description: 'We are looking for an experienced Senior Software Engineer to join our dynamic team.',
jobDescription: 'As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining high-quality software solutions. You will work closely with cross-functional teams to deliver innovative products.',
requirements: '5+ years of experience in software development, proficiency in JavaScript/TypeScript, experience with React and Node.js, strong problem-solving skills.',
responsibilities: 'Design and implement software solutions, mentor junior developers, participate in code reviews, collaborate with product managers.',
benefits: 'Competitive salary, health insurance, 401(k) matching, flexible work hours, remote work options, professional development budget.',
companyDescription: 'Tech Solutions Inc. is a fast-growing technology company that values innovation, collaboration, and continuous learning.',
location: 'San Francisco, CA / Remote',
employmentType: 'full-time',
salaryMin: 120000,
salaryMax: 160000,
currency: 'USD',
applicationDeadline: new Date(Date.now() + 30 * 24 * 60 * 60 * 1000), // 30 days from now
contactInfo: 'careers@techsolutions.example.com',
status: 'active',
isVisible: true,
openings: 2,
experienceLevel: 'senior',
},
});

const juniorPosition = await prisma.position.create({
data: {
companyId: sampleCompany.id,
interviewFlowId: technicalFlow.id,
title: 'Junior Software Engineer',
description: 'Great opportunity for recent graduates to start their career in software development.',
jobDescription: 'As a Junior Software Engineer, you will work with senior developers to build and maintain software applications. This is an excellent opportunity to learn and grow in a supportive environment.',
requirements: 'Bachelor degree in Computer Science or related field, basic programming knowledge, eagerness to learn, good communication skills.',
responsibilities: 'Assist in software development, participate in code reviews, learn new technologies, collaborate with team members.',
benefits: 'Mentorship program, training budget, health insurance, flexible hours, casual work environment.',
companyDescription: 'Tech Solutions Inc. believes in nurturing talent and providing growth opportunities for new professionals.',
location: 'San Francisco, CA',
employmentType: 'full-time',
salaryMin: 70000,
salaryMax: 90000,
currency: 'USD',
applicationDeadline: new Date(Date.now() + 45 * 24 * 60 * 60 * 1000), // 45 days from now
contactInfo: 'careers@techsolutions.example.com',
status: 'active',
isVisible: true,
openings: 3,
experienceLevel: 'junior',
},
});

const hrPosition = await prisma.position.create({
data: {
companyId: sampleCompany.id,
interviewFlowId: nonTechnicalFlow.id,
title: 'HR Coordinator',
description: 'We are seeking an organized HR Coordinator to support our Human Resources department.',
jobDescription: 'The HR Coordinator will assist with various HR functions including recruitment, employee relations, and administrative tasks.',
requirements: '2+ years of HR experience, knowledge of HR practices, strong organizational skills, excellent communication.',
responsibilities: 'Coordinate recruitment processes, maintain employee records, assist with onboarding, support HR initiatives.',
benefits: 'Competitive salary, health insurance, paid time off, professional development opportunities.',
companyDescription: 'Join our growing HR team and help us build a great workplace culture.',
location: 'San Francisco, CA',
employmentType: 'full-time',
salaryMin: 55000,
salaryMax: 70000,
currency: 'USD',
applicationDeadline: new Date(Date.now() + 20 * 24 * 60 * 60 * 1000), // 20 days from now
contactInfo: 'careers@techsolutions.example.com',
status: 'active',
isVisible: true,
openings: 1,
experienceLevel: 'mid',
},
});

console.log('✅ Database seeding completed successfully!');
console.log('📊 Summary:');
console.log(` - Interview Types: 4`);
console.log(` - Interview Flows: 2`);
console.log(` - Interview Steps: 7`);
console.log(` - Companies: 1`);
console.log(` - Employees: 3`);
console.log(` - Positions: 3`);
}
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⚠️ Potential issue | 🟠 Major

Seed script lacks idempotency - running multiple times will fail.

The seed script creates interview types with unique names (lines 10-40), but doesn't check if they already exist. Running npm run prisma:seed multiple times will cause unique constraint violations on InterviewType.name.

Consider using upsert operations or clearing existing data first to make the seed script idempotent:

Option 1: Use upsert operations

const phoneScreening = await prisma.interviewType.upsert({
  where: { name: 'Phone Screening' },
  update: {},
  create: {
    name: 'Phone Screening',
    description: 'Initial phone interview to assess basic qualifications',
    duration: 30,
  },
});

Option 2: Clear data before seeding

async function main() {
  console.log('🌱 Starting database seeding...');
  
  // Clear existing data in correct order (respecting foreign keys)
  console.log('🗑️  Clearing existing data...');
  await prisma.interview.deleteMany();
  await prisma.applicationAttachment.deleteMany();
  await prisma.applicationStatusHistory.deleteMany();
  await prisma.application.deleteMany();
  await prisma.position.deleteMany();
  await prisma.employee.deleteMany();
  await prisma.company.deleteMany();
  await prisma.interviewStep.deleteMany();
  await prisma.interviewFlow.deleteMany();
  await prisma.interviewType.deleteMany();
  
  // ... rest of seed logic
}
🤖 Prompt for AI Agents
In backend/prisma/seed.ts around lines 5-257 the seed script is not idempotent
and will hit unique constraint errors (e.g., InterviewType.name) when run
multiple times; fix by either replacing direct create calls with upsert
operations for entities with unique keys (interview types, flows, company,
positions, etc.) so they update-or-create, or add a pre-seed cleanup that calls
deleteMany on tables in FK-safe order (children first, parents last) to clear
existing data before recreating; apply the same approach consistently to
interviewTypes, interviewFlows, interviewSteps, companies, employees and
positions so repeated runs succeed.

@PetraZeta
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Resumen de la evaluación

✅ Puntos fuertes

  • El modelo de datos presenta entidades principales bien definidas (Candidate, Company, Position, Application, Interview) y buena normalización con tablas de soporte.
  • Se ha cuidado la integridad de datos: claves primarias, FKs coherentes y restricciones de unicidad aplicadas correctamente.
  • Buena atención al rendimiento: muchos FKs tienen índice, y los índices compuestos reflejan casos de uso reales del negocio.

🔧 Áreas de mejora

  • Relaciones hacia Employee: Falta definir en Prisma y SQL las relaciones para Interview.scheduledBy, ApplicationAttachment.uploadedBy y ApplicationStatusHistory.changedBy. Incluir FK + índice.
  • CHECK constraints: Añadir restricciones como salaryMin >= 0, salaryMax >= 0, salaryMin <= salaryMax, openings >= 0; en entrevistas score BETWEEN 1 AND 10, duration > 0; en attachments fileSize >= 0; en pasos de entrevista orderIndex > 0.
  • Índices: Eliminar el índice redundante en Candidate.email; añadir índice en Position.interviewFlowId si se filtra por él; revisar índices en campos de baja selectividad (isActive, status, etc.).
  • Convención de nombres / Prisma mapping: Usar snake_case en SQL y mapear en Prisma (@@map, @map) para evitar nombres entre comillas y mejorar legibilidad.
  • Estrategia de borrado: Documentar cuándo usar ON DELETE CASCADE, RESTRICT o soft delete (deletedAt, isDeleted) en tablas dependientes como Resume, ApplicationAttachment, etc.

📌 Prioridades sugeridas

  1. Definir relaciones hacia Employee + índices.
  2. Implementar los CHECK constraints más críticos.
  3. Ajustar o eliminar índices innecesarios.
  4. Establecer convención de nombres (snake_case) con mapeo en Prisma.
  5. Documentar la estrategia de borrado para cada tabla.

¡Buen trabajo hasta ahora! Con estas mejoras el modelo será aún más sólido y mantenible.

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