Initial Commit

slip slop

migrations/README

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+Generic single-database configuration.

migrations/env.py

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+"""Alembic environment — wired to our SQLAlchemy models and DATABASE_URL."""
+import os
+from logging.config import fileConfig
+
+from dotenv import load_dotenv
+from sqlalchemy import engine_from_config, pool
+from alembic import context
+
+# Load .env so DATABASE_URL is available when running alembic locally.
+load_dotenv()
+
+# Alembic Config object
+config = context.config
+
+# Set up loggers from alembic.ini
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# Override sqlalchemy.url from environment (takes precedence over alembic.ini).
+db_url = os.environ.get("DATABASE_URL")
+if db_url:
+    config.set_main_option("sqlalchemy.url", db_url)
+
+# Import models so Alembic autogenerate can see the metadata.
+from app.extensions import db  # noqa: E402
+import app.models  # noqa: E402, F401  — registers all models on db.metadata
+
+target_metadata = db.metadata
+
+
+def run_migrations_offline() -> None:
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+    with connectable.connect() as connection:
+        context.configure(connection=connection, target_metadata=target_metadata)
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, Sequence[str], None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

migrations/versions/024f72e7bea5_drop_tune_id_from_tunes.py

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+"""drop tune_id from tunes
+
+Revision ID: 024f72e7bea5
+Revises: 2bb981f6ee16
+Create Date: 2026-06-09
+"""
+from alembic import op
+
+revision = "024f72e7bea5"
+down_revision = "2bb981f6ee16"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.drop_column("tunes", "tune_id")
+
+
+def downgrade() -> None:
+    import sqlalchemy as sa
+    op.add_column("tunes", sa.Column("tune_id", sa.Integer(), nullable=True))

migrations/versions/2bb981f6ee16_initial_schema.py

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+"""initial schema
+
+Revision ID: 2bb981f6ee16
+Revises:
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "2bb981f6ee16"
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tunes",
+        sa.Column("id",      sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("name",    sa.String(), nullable=True),
+        sa.Column("version", sa.String(), nullable=True),
+        sa.Column("key",     sa.String(), nullable=True),
+        sa.Column("tune_id", sa.Integer(), nullable=True),
+    )
+
+    op.create_table(
+        "banjo",
+        sa.Column("id",           sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id",      sa.Integer(), sa.ForeignKey("tunes.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("learned_from", sa.String(),  nullable=True),
+        sa.Column("date_learned", sa.Date(),    nullable=True),
+        sa.Column("tuning",       sa.String(),  nullable=True),
+        sa.Column("callable",     sa.Boolean(), nullable=True),
+        sa.Column("review",       sa.Boolean(), nullable=True),
+        sa.Column("to_learn",     sa.Boolean(), nullable=True),
+        sa.Column("difficulty",   sa.String(),  nullable=True),
+        sa.UniqueConstraint("tune_id", name="banjo_tune_id_unique"),
+    )
+
+    op.create_table(
+        "fiddle",
+        sa.Column("id",           sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id",      sa.Integer(), sa.ForeignKey("tunes.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("learned_from", sa.String(),  nullable=True),
+        sa.Column("date_learned", sa.Date(),    nullable=True),
+        sa.Column("tuning",       sa.String(),  nullable=True),
+        sa.Column("callable",     sa.Boolean(), nullable=True),
+        sa.Column("review",       sa.Boolean(), nullable=True),
+        sa.Column("to_learn",     sa.Boolean(), nullable=True),
+        sa.Column("difficulty",   sa.String(),  nullable=True),
+        sa.UniqueConstraint("tune_id", name="fiddle_tune_id_unique"),
+    )
+
+    op.create_table(
+        "notes",
+        sa.Column("id",      sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id", sa.Integer(), sa.ForeignKey("tunes.id", ondelete="CASCADE"), nullable=True),
+        sa.Column("note",    sa.String(),  nullable=True),
+    )
+
+    op.create_table(
+        "references",
+        sa.Column("id",      sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id", sa.Integer(), sa.ForeignKey("tunes.id", ondelete="CASCADE"), nullable=True),
+        sa.Column("link",    sa.String(),  nullable=True),
+        sa.Column("site",    sa.String(),  nullable=True),
+    )
+
+    op.create_table(
+        "musicians",
+        sa.Column("name",         sa.String(),  primary_key=True, nullable=False),
+        sa.Column("reference_id", sa.Integer(), sa.ForeignKey("references.id", ondelete="CASCADE"), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("musicians")
+    op.drop_table("references")
+    op.drop_table("notes")
+    op.drop_table("fiddle")
+    op.drop_table("banjo")
+    op.drop_table("tunes")

migrations/versions/2bd4f3ff0ccc_decouple_musicians.py

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+"""decouple musicians: standalone table, join table for references, fk for learned_from
+
+Revision ID: 2bd4f3ff0ccc
+Revises: ea4bb85f9908
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "2bd4f3ff0ccc"
+down_revision = "ea4bb85f9908"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # 1. Drop the old musicians table (string PK, tied to references)
+    op.drop_table("musicians")
+
+    # 2. Create standalone musicians table with integer PK
+    op.create_table(
+        "musicians",
+        sa.Column("id",   sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(),  nullable=False),
+    )
+
+    # 3. Create reference_musicians join table (many-to-many)
+    op.create_table(
+        "reference_musicians",
+        sa.Column("reference_id", sa.Integer(),
+                  sa.ForeignKey("references.id", ondelete="CASCADE"),
+                  nullable=False),
+        sa.Column("musician_id",  sa.Integer(),
+                  sa.ForeignKey("musicians.id",  ondelete="CASCADE"),
+                  nullable=False),
+        sa.PrimaryKeyConstraint("reference_id", "musician_id"),
+    )
+
+    # 4. Add learned_from_id FK to banjo and fiddle (keep old learned_from text
+    #    column for the downgrade path, then drop it)
+    op.add_column("banjo",  sa.Column("learned_from_id", sa.Integer(),
+                                      sa.ForeignKey("musicians.id", ondelete="SET NULL"),
+                                      nullable=True))
+    op.add_column("fiddle", sa.Column("learned_from_id", sa.Integer(),
+                                      sa.ForeignKey("musicians.id", ondelete="SET NULL"),
+                                      nullable=True))
+    op.drop_column("banjo",  "learned_from")
+    op.drop_column("fiddle", "learned_from")
+
+
+def downgrade() -> None:
+    op.add_column("banjo",  sa.Column("learned_from", sa.String(), nullable=True))
+    op.add_column("fiddle", sa.Column("learned_from", sa.String(), nullable=True))
+    op.drop_column("banjo",  "learned_from_id")
+    op.drop_column("fiddle", "learned_from_id")
+    op.drop_table("reference_musicians")
+    op.drop_table("musicians")
+    # Recreate original musicians table
+    op.create_table(
+        "musicians",
+        sa.Column("name",         sa.String(),  primary_key=True, nullable=False),
+        sa.Column("reference_id", sa.Integer(),
+                  sa.ForeignKey("references.id", ondelete="CASCADE"),
+                  nullable=True),
+    )

migrations/versions/57326830536b_instrument_tunings.py

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+"""add instrument_tunings join table
+
+Revision ID: 57326830536b
+Revises: abdeb80d003e
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "57326830536b"
+down_revision = "abdeb80d003e"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "instrument_tunings",
+        sa.Column("instrument_id", sa.Integer(),
+                  sa.ForeignKey("instruments.id", ondelete="CASCADE"),
+                  primary_key=True, nullable=False),
+        sa.Column("tuning_id", sa.Integer(),
+                  sa.ForeignKey("tunings.id", ondelete="CASCADE"),
+                  primary_key=True, nullable=False),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("instrument_tunings")

migrations/versions/84db90f5499e_tune_by_instrument.py

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+"""replace banjo/fiddle with instruments + tune_by_instrument tables
+
+Revision ID: 84db90f5499e
+Revises: 2bd4f3ff0ccc
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "84db90f5499e"
+down_revision = "2bd4f3ff0ccc"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # 1. Drop old per-instrument tables (and their notes)
+    op.drop_table("banjo")
+    op.drop_table("fiddle")
+
+    # Rename notes → tune_notes
+    op.rename_table("notes", "tune_notes")
+
+    # 2. Instruments lookup table
+    op.create_table(
+        "instruments",
+        sa.Column("id",   sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(),  nullable=False, unique=True),
+    )
+    # Seed banjo and fiddle
+    op.execute("INSERT INTO instruments (name) VALUES ('banjo'), ('fiddle')")
+
+    # 3. Generic tune_by_instrument table
+    op.create_table(
+        "tune_by_instrument",
+        sa.Column("id",              sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id",         sa.Integer(),
+                  sa.ForeignKey("tunes.id",       ondelete="CASCADE"),   nullable=False),
+        sa.Column("instrument_id",   sa.Integer(),
+                  sa.ForeignKey("instruments.id", ondelete="CASCADE"),   nullable=False),
+        sa.Column("learned_from_id", sa.Integer(),
+                  sa.ForeignKey("musicians.id",   ondelete="SET NULL"),  nullable=True),
+        sa.Column("date_learned",    sa.Date(),    nullable=True),
+        sa.Column("tuning",          sa.String(),  nullable=True),
+        sa.Column("callable",        sa.Boolean(), nullable=True),
+        sa.Column("review",          sa.Boolean(), nullable=True),
+        sa.Column("to_learn",        sa.Boolean(), nullable=True),
+        sa.Column("difficulty",      sa.String(),  nullable=True),
+        sa.UniqueConstraint("tune_id", "instrument_id", name="uq_tune_instrument"),
+    )
+
+    # 4. Instrument-specific notes
+    op.create_table(
+        "tune_by_instrument_notes",
+        sa.Column("id",                   sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_by_instrument_id", sa.Integer(),
+                  sa.ForeignKey("tune_by_instrument.id", ondelete="CASCADE"), nullable=False),
+        sa.Column("note",                 sa.String(),  nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("tune_by_instrument_notes")
+    op.drop_table("tune_by_instrument")
+    op.drop_table("instruments")
+    op.rename_table("tune_notes", "notes")
+    op.create_table(
+        "banjo",
+        sa.Column("id",              sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id",         sa.Integer(), sa.ForeignKey("tunes.id",     ondelete="CASCADE"),  nullable=False, unique=True),
+        sa.Column("learned_from_id", sa.Integer(), sa.ForeignKey("musicians.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("date_learned",    sa.Date(),    nullable=True),
+        sa.Column("tuning",          sa.String(),  nullable=True),
+        sa.Column("callable",        sa.Boolean(), nullable=True),
+        sa.Column("review",          sa.Boolean(), nullable=True),
+        sa.Column("to_learn",        sa.Boolean(), nullable=True),
+        sa.Column("difficulty",      sa.String(),  nullable=True),
+    )
+    op.create_table(
+        "fiddle",
+        sa.Column("id",              sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("tune_id",         sa.Integer(), sa.ForeignKey("tunes.id",     ondelete="CASCADE"),  nullable=False, unique=True),
+        sa.Column("learned_from_id", sa.Integer(), sa.ForeignKey("musicians.id", ondelete="SET NULL"), nullable=True),
+        sa.Column("date_learned",    sa.Date(),    nullable=True),
+        sa.Column("tuning",          sa.String(),  nullable=True),
+        sa.Column("callable",        sa.Boolean(), nullable=True),
+        sa.Column("review",          sa.Boolean(), nullable=True),
+        sa.Column("to_learn",        sa.Boolean(), nullable=True),
+        sa.Column("difficulty",      sa.String(),  nullable=True),
+    )

migrations/versions/abdeb80d003e_add_tunings.py

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+"""add tunings table and tuning_id fk on tune_by_instrument
+
+Revision ID: abdeb80d003e
+Revises: 84db90f5499e
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "abdeb80d003e"
+down_revision = "84db90f5499e"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tunings",
+        sa.Column("id",   sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(),  nullable=False, unique=True),
+    )
+    op.drop_column("tune_by_instrument", "tuning")
+    op.add_column("tune_by_instrument",
+                  sa.Column("tuning_id", sa.Integer(),
+                            sa.ForeignKey("tunings.id", ondelete="SET NULL"),
+                            nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("tune_by_instrument", "tuning_id")
+    op.add_column("tune_by_instrument", sa.Column("tuning", sa.String(), nullable=True))
+    op.drop_table("tunings")

migrations/versions/ea4bb85f9908_add_sources.py

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+"""add sources table, source_id and modal to tunes, drop version
+
+Revision ID: ea4bb85f9908
+Revises: 024f72e7bea5
+Create Date: 2026-06-09
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "ea4bb85f9908"
+down_revision = "024f72e7bea5"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "sources",
+        sa.Column("id",   sa.Integer(), primary_key=True, autoincrement=True, nullable=False),
+        sa.Column("name", sa.String(),  nullable=False),
+    )
+
+    op.drop_column("tunes", "version")
+    op.add_column("tunes", sa.Column("source_id", sa.Integer(),
+                                     sa.ForeignKey("sources.id", ondelete="SET NULL"),
+                                     nullable=True))
+    op.add_column("tunes", sa.Column("modal", sa.Boolean(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("tunes", "modal")
+    op.drop_column("tunes", "source_id")
+    op.add_column("tunes", sa.Column("version", sa.String(), nullable=True))
+    op.drop_table("sources")