Database Schema

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Overview

The Letraz database is the backbone of our application’s data management, supporting both our core business logic and ancillary services. Designed with scalability, flexibility, and clarity in mind, the schema has been refined over time, and we’ll continue to do so as the schema evolves with our project. Below is a visual representation of the database schema:

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Design Philosophy

The Letraz database follows a structured approach with a focus on modularity and scalability. The key principles guiding our schema design are:

1. User-Centric Data Organization: Each user owns and manages their resumes, experiences, education, projects, skills, and strengths.
2. Modular Resume Composition: Resumes are constructed from distinct sections, allowing flexibility and customization.
3. Job Matching and Optimization: The system stores job postings, allowing intelligent resume tailoring.
4. Efficient Export and Versioning: Export requests and version control ensure that users can manage multiple variations of their resumes seamlessly.

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Schema Overview

Below is a breakdown of the main entities in the database:

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1. User Table (user)

• Stores personal information such as name, email, contact details, nationality, and profile text.
• Tracks account status with fields like is_active and is_staff.
• Users are linked to their resumes and other related entities.

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2. Resumes Table (resumes)

• Represents individual resumes created by users.
• Contains metadata such as base (indicating if it’s a primary resume) and personal_info.
• Connected to multiple resume_section records, allowing flexible customization.
• Now includes a reference to job, indicating if a resume is linked to a specific job posting.

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3. Resume Sections Table (resume_section)

• Stores individual components of a resume (e.g., experience, education, skills).
• Each section is linked to a resume and has an index field to maintain order.
• The type field is an enum representing different section types.

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4. Education Table (education)

• Captures academic qualifications of users.
• Fields include institution_name, degree, field_of_study, and duration.
• Supports ongoing education with the current boolean flag.

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5. Experience Table (experience)

• Logs professional experiences.
• Fields include company_name, job_title, location, duration, and description.

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6. Projects Table (projects)

• Tracks individual projects completed by users.
• Includes category, name, description, role, and duration.
• Project specific fields: github_url, live_url, and skills_used for better portfolio integration.

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7. Skills Table (skills)

• Stores skills associated with users.
• Includes name, category, and proficiency as an enum.

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8. Strengths Table (strengths)

• Captures user strengths that aren’t necessarily hard skills.

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9. Jobs Table (jobs)

• Stores job postings.
• Fields include title, company_name, location, employment_type, salary_range, description, and requirements.
• Used for AI-powered resume tailoring.

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10. Export Requests Table (export_request)

• Tracks requests for exporting resumes.
• Contains metadata such as created_at, expires_at, and downloaded.
• Now references job, allowing better tracking of exported resumes tied to specific job applications.

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Future Considerations

• Performance Optimization: Indexing frequently queried fields.
• Data Privacy: Ensuring user data security and compliance.
• Enhanced Resume Customization: Additional section types and templates.

This document will be updated as the schema evolves to better support Letraz’s functionality and user experience.