mirror of
https://github.com/bnair123/MusicAnalyser.git
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f4432154b6
- Refactor Database: Add `Artist` model, M2M relationship, and `AnalysisSnapshot` model. - Backend Services: Implement `StatsService` for computable metrics and `NarrativeService` for Gemini LLM integration. - Fix Ingestion: Correctly handle multiple artists per track and backfill existing data. - Testing: Add unit tests for statistics logic and live verification scripts. - Documentation: Add `PHASE_4_FRONTEND_GUIDE.md`.
64 lines
2.4 KiB
Python
64 lines
2.4 KiB
Python
"""Add Artist and Snapshot models
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Revision ID: 4401cb416661
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Revises: 707387fe1be2
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Create Date: 2025-12-24 23:06:59.235445
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = '4401cb416661'
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down_revision: Union[str, Sequence[str], None] = '707387fe1be2'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Upgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('analysis_snapshots',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('date', sa.DateTime(), nullable=True),
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sa.Column('period_start', sa.DateTime(), nullable=True),
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sa.Column('period_end', sa.DateTime(), nullable=True),
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sa.Column('period_label', sa.String(), nullable=True),
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sa.Column('metrics_payload', sa.JSON(), nullable=True),
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sa.Column('narrative_report', sa.JSON(), nullable=True),
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sa.Column('model_used', sa.String(), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_analysis_snapshots_date'), 'analysis_snapshots', ['date'], unique=False)
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op.create_index(op.f('ix_analysis_snapshots_id'), 'analysis_snapshots', ['id'], unique=False)
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op.create_table('artists',
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sa.Column('id', sa.String(), nullable=False),
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sa.Column('name', sa.String(), nullable=True),
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sa.Column('genres', sa.JSON(), nullable=True),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_artists_id'), 'artists', ['id'], unique=False)
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op.create_table('track_artists',
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sa.Column('track_id', sa.String(), nullable=False),
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sa.Column('artist_id', sa.String(), nullable=False),
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sa.ForeignKeyConstraint(['artist_id'], ['artists.id'], ),
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sa.ForeignKeyConstraint(['track_id'], ['tracks.id'], ),
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sa.PrimaryKeyConstraint('track_id', 'artist_id')
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)
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# ### end Alembic commands ###
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def downgrade() -> None:
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"""Downgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_table('track_artists')
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op.drop_index(op.f('ix_artists_id'), table_name='artists')
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op.drop_table('artists')
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op.drop_index(op.f('ix_analysis_snapshots_id'), table_name='analysis_snapshots')
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op.drop_index(op.f('ix_analysis_snapshots_date'), table_name='analysis_snapshots')
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op.drop_table('analysis_snapshots')
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# ### end Alembic commands ###
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