reset migrations and created a seeder folder in the backend so that we don't seed the experiences/treatments/qualities in migrations

Author: YashK2005

README.md

@@ -331,3 +331,15 @@ To apply the migration, run the following command:
 ```bash
 pdm run alembic upgrade head
 ```
+
+## Database Seeding
+
+```bash
+# Seed the database with reference data
+cd backend && pdm run seed
+
+### Adding New Seed Data
+
+1. Create or modify seed files in `backend/app/seeds/`
+2. Update the runner in `backend/app/seeds/runner.py`
+3. Run `pdm run seed` to apply changes

backend/app/seeds/__init__.py

@@ -0,0 +1,10 @@
+"""
+Database seeding system for LLSC backend.
+
+This module provides a clean separation between schema migrations and reference data seeding.
+All reference data (roles, treatments, experiences, etc.) is managed here instead of in migrations.
+"""
+
+from .runner import seed_database
+
+__all__ = ["seed_database"]

backend/app/seeds/experiences.py

@@ -0,0 +1,36 @@
+"""Seed experiences data."""
+
+from sqlalchemy.orm import Session
+
+from app.models.Experience import Experience
+
+
+def seed_experiences(session: Session) -> None:
+    """Seed the experiences table with cancer-related experiences."""
+    
+    experiences_data = [
+        {"id": 1, "name": "Brain Fog"},
+        {"id": 2, "name": "Communication Challenges"},
+        {"id": 3, "name": "Compassion Fatigue"},
+        {"id": 4, "name": "Feeling Overwhelmed"},
+        {"id": 5, "name": "Fatigue"},
+        {"id": 6, "name": "Fertility Issues"},
+        {"id": 7, "name": "Graft vs Host"},
+        {"id": 8, "name": "Returning to work or school after/during treatment"},
+        {"id": 9, "name": "Speaking to your family or friends about the diagnosis"},
+        {"id": 10, "name": "Relapse"},
+        {"id": 11, "name": "Anxiety / Depression"},
+        {"id": 12, "name": "PTSD"},
+    ]
+    
+    for experience_data in experiences_data:
+        # Check if experience already exists
+        existing_experience = session.query(Experience).filter_by(id=experience_data["id"]).first()
+        if not existing_experience:
+            experience = Experience(**experience_data)
+            session.add(experience)
+            print(f"Added experience: {experience_data['name']}")
+        else:
+            print(f"Experience already exists: {experience_data['name']}")
+    
+    session.commit()

backend/app/seeds/forms.py

@@ -0,0 +1,41 @@
+"""Seed forms data."""
+
+import uuid
+from sqlalchemy.orm import Session
+
+from app.models.Form import Form
+
+
+def seed_forms(session: Session) -> None:
+    """Seed the forms table with default form configurations."""
+    
+    forms_data = [
+        {
+            "id": "12345678-1234-1234-1234-123456789012",
+            "name": "Participant Intake Form",
+            "version": 1,
+            "type": "intake",
+        },
+        {
+            "id": "12345678-1234-1234-1234-123456789013", 
+            "name": "Volunteer Intake Form",
+            "version": 1,
+            "type": "intake",
+        },
+    ]
+    
+    for form_data in forms_data:
+        # Check if form already exists
+        form_id = uuid.UUID(form_data["id"])
+        existing_form = session.query(Form).filter_by(id=form_id).first()
+        if not existing_form:
+            # Convert string UUID to UUID object
+            form_data_copy = form_data.copy()
+            form_data_copy["id"] = form_id
+            form = Form(**form_data_copy)
+            session.add(form)
+            print(f"Added form: {form_data['name']}")
+        else:
+            print(f"Form already exists: {form_data['name']}")
+    
+    session.commit()

backend/app/seeds/qualities.py

@@ -0,0 +1,32 @@
+"""Seed qualities data."""
+
+from sqlalchemy.orm import Session
+
+from app.models.Quality import Quality
+
+
+def seed_qualities(session: Session) -> None:
+    """Seed the qualities table with matching qualities."""
+    
+    qualities_data = [
+        {"slug": "same_age", "label": "the same age as"},
+        {"slug": "same_gender_identity", "label": "the same gender identity as"},
+        {"slug": "same_ethnic_or_cultural_group", "label": "the same ethnic or cultural group as"},
+        {"slug": "same_marital_status", "label": "the same marital status as"},
+        {"slug": "same_parental_status", "label": "the same parental status as"},
+        {"slug": "same_diagnosis", "label": "the same diagnosis as"},
+    ]
+    
+    for quality_data in qualities_data:
+        # Check if quality already exists
+        existing_quality = session.query(Quality).filter_by(slug=quality_data["slug"]).first()
+        if not existing_quality:
+            quality = Quality(**quality_data)
+            session.add(quality)
+            print(f"Added quality: {quality_data['slug']}")
+        else:
+            # Update label in case it changed
+            existing_quality.label = quality_data["label"]
+            print(f"Quality already exists (updated label): {quality_data['slug']}")
+    
+    session.commit()

backend/app/seeds/roles.py

@@ -0,0 +1,27 @@
+"""Seed roles data."""
+
+from sqlalchemy.orm import Session
+
+from app.models.Role import Role
+
+
+def seed_roles(session: Session) -> None:
+    """Seed the roles table with default roles."""
+    
+    roles_data = [
+        {"id": 1, "name": "participant"},
+        {"id": 2, "name": "volunteer"},
+        {"id": 3, "name": "admin"},
+    ]
+    
+    for role_data in roles_data:
+        # Check if role already exists
+        existing_role = session.query(Role).filter_by(id=role_data["id"]).first()
+        if not existing_role:
+            role = Role(**role_data)
+            session.add(role)
+            print(f"Added role: {role_data['name']}")
+        else:
+            print(f"Role already exists: {role_data['name']}")
+    
+    session.commit()

backend/app/seeds/runner.py

@@ -0,0 +1,101 @@
+"""Database seeding runner."""
+
+import logging
+import os
+import sys
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker
+from dotenv import load_dotenv
+
+from app.utilities.constants import LOGGER_NAME
+
+# Import all seed functions
+from .roles import seed_roles
+from .treatments import seed_treatments
+from .experiences import seed_experiences
+from .qualities import seed_qualities
+from .forms import seed_forms
+
+# Load environment variables
+load_dotenv()
+
+log = logging.getLogger(LOGGER_NAME("seeds"))
+
+
+def get_database_session():
+    """Create a database session for seeding."""
+    database_url = os.getenv("POSTGRES_DATABASE_URL")
+    if not database_url:
+        raise ValueError("POSTGRES_DATABASE_URL environment variable is required")
+    
+    engine = create_engine(database_url)
+    SessionLocal = sessionmaker(bind=engine)
+    return SessionLocal()
+
+
+def seed_database(verbose: bool = True) -> None:
+    """
+    Run all database seeding functions.
+    
+    Args:
+        verbose: Whether to print detailed output
+    """
+    if verbose:
+        print("🌱 Starting database seeding...")
+    
+    session = get_database_session()
+    
+    try:
+        # Run all seed functions in dependency order
+        seed_functions = [
+            ("Roles", seed_roles),
+            ("Treatments", seed_treatments), 
+            ("Experiences", seed_experiences),
+            ("Qualities", seed_qualities),
+            ("Forms", seed_forms),
+        ]
+        
+        for name, seed_func in seed_functions:
+            if verbose:
+                print(f"\n📦 Seeding {name}...")
+            try:
+                seed_func(session)
+                if verbose:
+                    print(f"✅ {name} seeded successfully")
+            except Exception as e:
+                print(f"❌ Error seeding {name}: {str(e)}")
+                log.error(f"Error seeding {name}: {str(e)}")
+                raise
+        
+        if verbose:
+            print("\n🎉 Database seeding completed successfully!")
+            
+    except Exception as e:
+        session.rollback()
+        if verbose:
+            print(f"\n❌ Database seeding failed: {str(e)}")
+        raise
+    finally:
+        session.close()
+
+
+def main():
+    """CLI entry point for database seeding."""
+    import argparse
+    
+    parser = argparse.ArgumentParser(description="Seed the LLSC database with reference data")
+    parser.add_argument("--quiet", "-q", action="store_true", help="Suppress output")
+    parser.add_argument("--env", help="Environment (currently unused but for future extension)")
+    
+    args = parser.parse_args()
+    
+    try:
+        seed_database(verbose=not args.quiet)
+        sys.exit(0)
+    except Exception as e:
+        print(f"Seeding failed: {str(e)}")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()

backend/app/seeds/treatments.py

@@ -0,0 +1,38 @@
+"""Seed treatments data."""
+
+from sqlalchemy.orm import Session
+
+from app.models.Treatment import Treatment
+
+
+def seed_treatments(session: Session) -> None:
+    """Seed the treatments table with cancer treatments."""
+    
+    treatments_data = [
+        {"id": 1, "name": "Unknown"},
+        {"id": 2, "name": "Watch and Wait / Active Surveillance"},
+        {"id": 3, "name": "Chemotherapy"},
+        {"id": 4, "name": "Immunotherapy"},
+        {"id": 5, "name": "Oral Chemotherapy"},
+        {"id": 6, "name": "Radiation"},
+        {"id": 7, "name": "Maintenance Chemotherapy"},
+        {"id": 8, "name": "Palliative Care"},
+        {"id": 9, "name": "Transfusions"},
+        {"id": 10, "name": "Autologous Stem Cell Transplant"},
+        {"id": 11, "name": "Allogeneic Stem Cell Transplant"},
+        {"id": 12, "name": "Haplo Stem Cell Transplant"},
+        {"id": 13, "name": "CAR-T"},
+        {"id": 14, "name": "BTK Inhibitors"},
+    ]
+    
+    for treatment_data in treatments_data:
+        # Check if treatment already exists
+        existing_treatment = session.query(Treatment).filter_by(id=treatment_data["id"]).first()
+        if not existing_treatment:
+            treatment = Treatment(**treatment_data)
+            session.add(treatment)
+            print(f"Added treatment: {treatment_data['name']}")
+        else:
+            print(f"Treatment already exists: {treatment_data['name']}")
+    
+    session.commit()