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Created August 14, 2021 18:45
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GIST created by python code
├── Pipfile
├── Pipfile.lock
├── alembic.ini
├── db.py
├── db.sqlite
├── main.py
└── migrations
sqlalchemy.url = sqlite:///db.sqlite
# db.py
class Users(ormar.Model):
class Meta(BaseMeta):
tablename = "users"
id: int = ormar.Integer(primary_key=True)
email: str = ormar.String(max_length=64, unique=True)
password: str = ormar.String(max_length=128)
is_active: bool = ormar.Boolean(default=True) # new
(fastapi-ormar-alembic) $ alembic init migrations
from fastapi import FastAPI
from db import database
app = FastAPI()
@app.on_event("startup")
async def startup():
if not database.is_connected:
await database.connect()
@app.on_event("shutdown")
async def shutdown():
if database.is_connected:
await database.disconnect()
$ sqlite3 db.sqlite
SQLite version 3.31.1 2020-01-27 19:55:54
Enter ".help" for usage hints.
sqlite> .schema users
CREATE TABLE users (
id INTEGER NOT NULL,
email VARCHAR(64) NOT NULL,
password VARCHAR(128) NOT NULL, is_active BOOLEAN,
PRIMARY KEY (id),
UNIQUE (email)
);
sqlite> .quit
(fastapi-ormar-alembic) $ alembic revision --autogenerate -m "Added is_active to users table"
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.autogenerate.compare] Detected added column 'users.is_active'
Generating /home/amalshaji/Workspace/Python/blog-code-repository/fastapi-ormar-
alembic/migrations/versions/026a9a23ebbe_added_is_active_to_users_table.py ... done
(fastapi-ormar-alembic) $ alembic upgrade head
...
from db import BaseMeta
...
target_metadata = BaseMeta.metadata
$ mkdir fastapi-ormar-alembic && cd $_
$ mkdir .venv
$ pipenv install fastapi uvicorn ormar alembic aiosqlite
import databases
import ormar
import sqlalchemy
database = databases.Database("sqlite:///db.sqlite")
metadata = sqlalchemy.MetaData()
class BaseMeta(ormar.ModelMeta):
database = database
metadata = metadata
class Users(ormar.Model):
class Meta(BaseMeta):
tablename = "users"
id: int = ormar.Integer(primary_key=True)
email: str = ormar.String(max_length=64, unique=True)
password: str = ormar.String(max_length=128)
"""Added users table
Revision ID: c07fe5d55962
Revises:
Create Date: 2021-08-14 11:55:46.845709
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = 'c07fe5d55962'
down_revision = None
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('users',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('email', sa.String(length=64), nullable=False),
sa.Column('password', sa.String(length=128), nullable=False),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('email')
)
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.drop_table('users')
# ### end Alembic commands ###
(fastapi-ormar-alembic) $ alembic revision --autogenerate -m "Added users table"
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.autogenerate.compare] Detected added table 'users'
Generating /home/amalshaji/Workspace/Python/blog-code-repository/fastapi-ormar-
alembic/migrations/versions/c07fe5d55962_added_users_table.py ... done
"""Added is_active to users table
Revision ID: 026a9a23ebbe
Revises: c07fe5d55962
Create Date: 2021-08-14 12:20:36.817128
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '026a9a23ebbe'
down_revision = 'c07fe5d55962'
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.add_column('users', sa.Column('is_active', sa.Boolean(), nullable=True))
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.drop_column('users', 'is_active')
# ### end Alembic commands ###
(fastapi-ormar-alembic) $ alembic upgrade head
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