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GallerySubscriber/backend/alembic/versions/001_initial_schema.py
T

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Python

"""Initial schema
Revision ID: 001
Revises:
Create Date: 2025-01-24
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql
revision: str = '001'
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
def upgrade() -> None:
# Sources table
op.create_table(
'sources',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('name', sa.String(255), nullable=False),
sa.Column('platform', sa.String(50), nullable=False),
sa.Column('url', sa.Text(), nullable=False),
sa.Column('enabled', sa.Boolean(), default=True),
sa.Column('priority', sa.Integer(), default=0),
sa.Column('check_interval', sa.Integer(), default=28800),
sa.Column('last_check', sa.DateTime(), nullable=True),
sa.Column('last_success', sa.DateTime(), nullable=True),
sa.Column('error_count', sa.Integer(), default=0),
sa.Column('metadata', postgresql.JSONB(), default={}),
sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('platform', 'url', name='uq_source_platform_url')
)
op.create_index('ix_sources_platform', 'sources', ['platform'])
# Downloads table
op.create_table(
'downloads',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('source_id', sa.Integer(), nullable=True),
sa.Column('url', sa.Text(), nullable=False),
sa.Column('status', sa.String(20), default='pending'),
sa.Column('error_type', sa.String(50), nullable=True),
sa.Column('error_message', sa.Text(), nullable=True),
sa.Column('file_count', sa.Integer(), default=0),
sa.Column('total_size', sa.BigInteger(), nullable=True),
sa.Column('started_at', sa.DateTime(), nullable=True),
sa.Column('completed_at', sa.DateTime(), nullable=True),
sa.Column('metadata', postgresql.JSONB(), default={}),
sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
sa.PrimaryKeyConstraint('id'),
sa.ForeignKeyConstraint(['source_id'], ['sources.id'], ondelete='SET NULL')
)
op.create_index('ix_downloads_status', 'downloads', ['status'])
op.create_index('ix_downloads_source_id', 'downloads', ['source_id'])
# Content items table
op.create_table(
'content_items',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('source_id', sa.Integer(), nullable=False),
sa.Column('download_id', sa.Integer(), nullable=True),
sa.Column('external_id', sa.String(255), nullable=True),
sa.Column('title', sa.String(500), nullable=True),
sa.Column('content_type', sa.String(50), default='other'),
sa.Column('file_path', sa.String(500), nullable=True),
sa.Column('file_size', sa.BigInteger(), nullable=True),
sa.Column('thumbnail_path', sa.String(500), nullable=True),
sa.Column('published_at', sa.DateTime(), nullable=True),
sa.Column('discovered_at', sa.DateTime(), server_default=sa.func.now()),
sa.Column('metadata', postgresql.JSONB(), default={}),
sa.PrimaryKeyConstraint('id'),
sa.ForeignKeyConstraint(['source_id'], ['sources.id'], ondelete='CASCADE'),
sa.ForeignKeyConstraint(['download_id'], ['downloads.id'], ondelete='SET NULL'),
sa.UniqueConstraint('source_id', 'external_id', name='uq_content_source_external')
)
op.create_index('ix_content_items_source_id', 'content_items', ['source_id'])
op.create_index('ix_content_items_discovered_at', 'content_items', ['discovered_at'])
# Credentials table
op.create_table(
'credentials',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('platform', sa.String(50), nullable=False),
sa.Column('credential_type', sa.String(20), nullable=False),
sa.Column('data', sa.LargeBinary(), nullable=False),
sa.Column('expires_at', sa.DateTime(), nullable=True),
sa.Column('last_verified', sa.DateTime(), nullable=True),
sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('platform', name='uq_credential_platform')
)
op.create_index('ix_credentials_platform', 'credentials', ['platform'])
# Settings table
op.create_table(
'settings',
sa.Column('key', sa.String(100), nullable=False),
sa.Column('value', postgresql.JSONB(), nullable=False),
sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
sa.PrimaryKeyConstraint('key')
)
# Insert default settings
op.execute("""
INSERT INTO settings (key, value) VALUES
('download.parallel_limit', '3'),
('download.rate_limit', '3.0'),
('download.retry_count', '3'),
('download.schedule_interval', '28800'),
('notification.enabled', 'false'),
('notification.webhook_url', 'null')
""")
def downgrade() -> None:
op.drop_table('settings')
op.drop_table('credentials')
op.drop_table('content_items')
op.drop_table('downloads')
op.drop_table('sources')