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103 lines
4.0 KiB
Python
103 lines
4.0 KiB
Python
"""initial schema: users, pdfs, annotations
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Revision ID: 0001
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Revises:
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Create Date: 2026-03-31
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"""
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revision = "0001"
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down_revision = None
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branch_labels = None
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depends_on = None
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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def upgrade() -> None:
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# ── users ─────────────────────────────────────────────────────────────────
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op.create_table(
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"users",
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sa.Column("id", sa.Integer(), nullable=False),
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sa.Column("username", sa.String(length=64), nullable=False),
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sa.Column("email", sa.String(length=255), nullable=False),
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sa.Column("password_hash", sa.String(length=255), nullable=False),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.text("now()"),
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),
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sa.PrimaryKeyConstraint("id"),
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)
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op.create_index("ix_users_id", "users", ["id"])
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op.create_index("ix_users_username", "users", ["username"], unique=True)
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op.create_index("ix_users_email", "users", ["email"], unique=True)
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# ── pdfs ──────────────────────────────────────────────────────────────────
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op.create_table(
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"pdfs",
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sa.Column("id", sa.Integer(), nullable=False),
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sa.Column("user_id", sa.Integer(), nullable=False),
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sa.Column("title", sa.String(length=255), nullable=False),
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sa.Column("file_path", sa.Text(), nullable=False),
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sa.Column("total_pages", sa.Integer(), nullable=True),
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sa.Column(
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"created_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.text("now()"),
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),
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sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
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sa.PrimaryKeyConstraint("id"),
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)
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op.create_index("ix_pdfs_id", "pdfs", ["id"])
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op.create_index("ix_pdfs_user_id", "pdfs", ["user_id"])
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# ── annotations ───────────────────────────────────────────────────────────
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op.create_table(
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"annotations",
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sa.Column("id", sa.Integer(), nullable=False),
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sa.Column("pdf_id", sa.Integer(), nullable=False),
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sa.Column("user_id", sa.Integer(), nullable=False),
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sa.Column("page_number", sa.Integer(), nullable=False),
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sa.Column(
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"canvas_data",
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postgresql.JSONB(astext_type=sa.Text()),
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nullable=False,
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server_default="{}",
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),
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sa.Column(
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"updated_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.text("now()"),
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),
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sa.ForeignKeyConstraint(["pdf_id"], ["pdfs.id"], ondelete="CASCADE"),
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sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),
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sa.PrimaryKeyConstraint("id"),
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sa.UniqueConstraint(
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"pdf_id", "user_id", "page_number", name="uq_annotation_pdf_user_page"
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),
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)
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op.create_index("ix_annotations_id", "annotations", ["id"])
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op.create_index("ix_annotations_pdf_id", "annotations", ["pdf_id"])
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op.create_index("ix_annotations_user_id", "annotations", ["user_id"])
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def downgrade() -> None:
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op.drop_index("ix_annotations_user_id", table_name="annotations")
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op.drop_index("ix_annotations_pdf_id", table_name="annotations")
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op.drop_index("ix_annotations_id", table_name="annotations")
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op.drop_table("annotations")
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op.drop_index("ix_pdfs_user_id", table_name="pdfs")
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op.drop_index("ix_pdfs_id", table_name="pdfs")
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op.drop_table("pdfs")
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op.drop_index("ix_users_email", table_name="users")
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op.drop_index("ix_users_username", table_name="users")
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op.drop_index("ix_users_id", table_name="users")
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op.drop_table("users")
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