using alembic to perform database

Author: Aaronga19

.gitignore

@@ -4,4 +4,8 @@ taste.py
 # Confidential
 
 secret.json
-.env
+.env
+
+# Alembic
+
+alembic

alembic.ini

@@ -0,0 +1,100 @@
+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python-dateutil library that can be
+# installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator"
+# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. Valid values are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # default: use os.pathsep
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = 
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

app/SQLQuery.pgsql

@@ -1,15 +1,19 @@
 
-/*
-INSERT INTO posts (title, content, published, owner_id) VALUES ('From SQL SENTENCE', 'FROM SQL SENTENCE IN A SCRIPT', false, 1) RETURNING *;
+/* Pull information */
+--INSERT INTO posts (title, content, published, owner_id) VALUES ('From SQL SENTENCE', 'FROM SQL SENTENCE IN A SCRIPT', false, 1) RETURNING *;
 
-INSERT INTO users (email, password) VALUES ('arcan_diabdo@hotmail.com', 'Micontraseña1234') RETURNING *;
-*/
+--INSERT INTO users (email, password) VALUES ('arcan_diabdo@hotmail.com', 'Micontraseña1234') RETURNING *;
 
-SELECT * FROM votes;
+/* to group the number of post from each person*/
+--SELECT users.id, users.email, COUNT(posts.id) AS user_post_count FROM posts LEFT JOIN users ON posts.owner_id = users.id GROUP BY users.id;
 
-/* DELETE TABLE */
-/*DROP TABLE posts;*/
+/* Filters*/
+-- SELECT posts.*, COUNT(votes.post_id) FROM posts LEFT JOIN votes ON posts.id = votes.post_id GROUP BY posts.id;
 
+/* DELETE TABLE */
+--DROP TABLE votes;
+/* CASCADE*/
+--DROP TABLE votes CASCADE
 /* delete all rows from a table
 DELETE FROM posts;
 */

app/main.py

@@ -16,7 +16,7 @@
 
 app = FastAPI()
 
-models.Base.metadata.create_all(bind=engine)
+#models.Base.metadata.create_all(bind=engine)
 
 # ROUTERS
 app.include_router(post.router)

app/models.py

@@ -27,6 +27,7 @@ class User(Base):
     password = Column(String, nullable=False)
     created_at = Column(TIMESTAMP(timezone=True), nullable=False, server_default=text('now()'))
     premium = Column(Boolean, nullable=False)
+    phone_number = Column(String)
 
 class Vote(Base):
     __tablename__ = "votes"

app/routers/post.py

@@ -2,7 +2,7 @@
 from fastapi import status, HTTPException, Depends
 from fastapi.routing import APIRouter
 from sqlalchemy.orm import Session
-
+from sqlalchemy import func
 from app import oauth2
 from .. import models, schemas
 from ..database import get_db
@@ -16,15 +16,21 @@
 
 # API
 
-@router.get("/", response_model=List[schemas.Post])
+#@router.get("/", response_model=List[schemas.Post])
+@router.get("/", response_model=List[schemas.PostOut])
 def get_posts(db: Session = Depends(get_db), current_user: int = Depends(oauth2.get_current_user), limit: int = 10, skip: int= 0, search: Optional[str]= ""):
     # SQL 
     """cursor.execute('''SELECT * FROM posts''')
     posts = cursor.fetchall()"""
     # ORM
     print(f"Request by '{current_user.id}' - {current_user.email}")
     # to filter by user _ posts = db.query(models.Post).filter(models.Post.owner_id == current_user.id).all()
-    posts = db.query(models.Post).filter(models.Post.title.contains(search)).limit(limit).offset(skip).all()
+    #posts = db.query(models.Post).filter(models.Post.title.contains(search)).limit(limit).offset(skip).all()
+    posts = db.query(
+        models.Post, func.count(models.Vote.post_id).label('votes')).join(
+            models.Vote, models.Vote.post_id == models.Post.id, isouter=True).group_by(
+                models.Post.id).filter(
+                    models.Post.title.contains(search)).limit(limit).offset(skip).all()
     return posts
 
 
@@ -57,15 +63,19 @@ def get_latest_post():
     """post = my_posts[len(my_posts)-1]
     return post"""
 
-@router.get("/{id}", response_model=schemas.Post)
+@router.get("/{id}", response_model=schemas.PostOut)
 async def get_post(id: int, db: Session = Depends(get_db), current_user: int = Depends(oauth2.get_current_user)):
 
     # SQL CODE
     '''cursor.execute("SELECT * FROM posts WHERE id = %s", (str(id),))
     post = cursor.fetchone()'''
 
     # ORM 
-    post = db.query(models.Post).filter(models.Post.id==id).first()
+    #post = db.query(models.Post).filter(models.Post.id==id).first()
+    post = db.query(
+        models.Post, func.count(models.Vote.post_id).label('votes')).join(
+            models.Vote, models.Vote.post_id == models.Post.id, isouter=True).group_by(
+                models.Post.id).filter(models.Post.id==id).first()
     #post = find_post(id)
     if post != None:
         return post

app/routers/vote.py

@@ -15,6 +15,10 @@
 @router.post("/", status_code=status.HTTP_201_CREATED)
 def vote(vote: schemas.Vote, db: Session = Depends(database.get_db), current_user: int = Depends(oauth2.get_current_user)):
 
+    post = db.query(models.Post).filter(models.Post.id == vote.post_id).first()
+    if not post:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Post with id {vote.post_id} does not exist!")
+
     vote_query = db.query(models.Vote).filter(models.Vote.post_id == vote.post_id, models.Vote.user_id == current_user.id)
     found_vote = vote_query.first()
     if vote.dir == 1:

app/schemas.py

@@ -37,6 +37,13 @@ class Post(PostBase):
     class Config:
         orm_mode = True
 
+class PostOut(BaseModel):
+    Post: Post
+    votes: int
+
+    class Config:
+        orm_mode = True
+
 class UserCreate(BaseModel):
     email: EmailStr
     password: str