feat: add POST /fruits endpoint to create new fruits

alembic/versions/20250430_094514_6958f2e3_update_fruit.py

@@ -0,0 +1,34 @@
+"""create table for fruits
+
+Revision ID: 9f2b6a4e5c28
+Revises: 2d7c4f9e8a1c
+Create Date: 2023-05-24 12:00:00
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import func
+import uuid
+
+# revision identifiers, used by Alembic.
+revision = '9f2b6a4e5c28'
+down_revision = '2d7c4f9e8a1c'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    table_name = "fruits"
+
+    op.create_table(
+        table_name,
+        sa.Column('id', sa.String(36), primary_key=True, default=lambda: str(uuid.uuid4())),
+        sa.Column('name', sa.String(), nullable=False, unique=True),
+        sa.Column('color', sa.String(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), server_default=func.now()),
+        sa.Column('updated_at', sa.DateTime(), server_default=func.now(), onupdate=func.now()),
+        sa.Index('ix_fruits_name', 'name')
+    )
+
+def downgrade():
+    table_name = "fruits"
+    op.drop_table(table_name)

endpoints/fruits.post.py

@@ -0,0 +1,15 @@
+from fastapi import APIRouter, Depends, status
+from sqlalchemy.orm import Session
+from core.database import get_db
+from schemas.fruit import FruitSchema, FruitCreate
+from helpers.fruit_helpers import create_fruit
+
+router = APIRouter()
+
+@router.post("/fruits", status_code=status.HTTP_201_CREATED, response_model=FruitSchema)
+async def create_new_fruit(
+    fruit_data: FruitCreate,
+    db: Session = Depends(get_db)
+):
+    new_fruit = create_fruit(db=db, fruit_data=fruit_data)
+    return new_fruit

helpers/fruit_helpers.py

@@ -0,0 +1,55 @@
+from typing import Optional
+from sqlalchemy.orm import Session
+from sqlalchemy.exc import IntegrityError
+from models.fruit import Fruit
+from schemas.fruit import FruitCreate
+from uuid import UUID
+
+def create_fruit(db: Session, fruit_data: FruitCreate) -> Fruit:
+    """
+    Creates a new fruit in the database.
+
+    Args:
+        db (Session): The database session.
+        fruit_data (FruitCreate): The data for the fruit to create.
+
+    Returns:
+        Fruit: The newly created fruit object.
+
+    Raises:
+        IntegrityError: If a fruit with the same name already exists.
+    """
+    try:
+        db_fruit = Fruit(**fruit_data.dict())
+        db.add(db_fruit)
+        db.commit()
+        db.refresh(db_fruit)
+        return db_fruit
+    except IntegrityError:
+        db.rollback()
+        raise ValueError(f"A fruit with the name '{fruit_data.name}' already exists.")
+
+def get_fruit_by_id(db: Session, fruit_id: UUID) -> Optional[Fruit]:
+    """
+    Retrieves a single fruit by its ID.
+
+    Args:
+        db (Session): The database session.
+        fruit_id (UUID): The ID of the fruit to retrieve.
+
+    Returns:
+        Optional[Fruit]: The fruit object if found, otherwise None.
+    """
+    return db.query(Fruit).filter(Fruit.id == fruit_id).first()
+
+def get_all_fruits(db: Session) -> list[Fruit]:
+    """
+    Retrieves all fruits from the database.
+
+    Args:
+        db (Session): The database session.
+
+    Returns:
+        list[Fruit]: A list of all fruit objects.
+    """
+    return db.query(Fruit).all()

models/fruit.py

@@ -0,0 +1,14 @@
+from sqlalchemy import Column, String, DateTime
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.sql import func
+from core.database import Base
+import uuid
+
+class Fruit(Base):
+    __tablename__ = "fruits"
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    name = Column(String, nullable=False, unique=True, index=True)
+    color = Column(String, nullable=False)
+    created_at = Column(DateTime, default=func.now())
+    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())

schemas/fruit.py

@@ -0,0 +1,23 @@
+from pydantic import BaseModel, Field
+from typing import Optional
+from datetime import datetime
+from uuid import UUID
+
+class FruitBase(BaseModel):
+    name: str = Field(..., description="The name of the fruit")
+    color: str = Field(..., description="The color of the fruit")
+
+class FruitCreate(FruitBase):
+    pass
+
+class FruitUpdate(FruitBase):
+    name: Optional[str] = Field(None, description="The updated name of the fruit")
+    color: Optional[str] = Field(None, description="The updated color of the fruit")
+
+class FruitSchema(FruitBase):
+    id: UUID
+    created_at: datetime
+    updated_at: datetime
+
+    class Config:
+        orm_mode = True