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76 lines
2.4 KiB
76 lines
2.4 KiB
"""Add topic_schedule table
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Revision ID: 20b5f07e5f80
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Revises: d56e71257a86
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Create Date: 2019-10-02 22:08:13.324006
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"""
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from alembic import op
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import sqlalchemy as sa
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from tildes.lib.database import ArrayOfLtree
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# revision identifiers, used by Alembic.
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revision = "20b5f07e5f80"
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down_revision = "d56e71257a86"
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branch_labels = None
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depends_on = None
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def upgrade():
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op.create_table(
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"topic_schedule",
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sa.Column("schedule_id", sa.Integer(), nullable=False),
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sa.Column("group_id", sa.Integer(), nullable=False),
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sa.Column("user_id", sa.Integer(), nullable=True),
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sa.Column(
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"created_time",
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sa.TIMESTAMP(timezone=True),
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server_default=sa.text("NOW()"),
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nullable=False,
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),
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sa.Column("title", sa.Text(), nullable=False),
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sa.Column("markdown", sa.Text(), nullable=False),
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sa.Column("tags", ArrayOfLtree(), server_default="{}", nullable=False),
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sa.Column("next_post_time", sa.TIMESTAMP(timezone=True), nullable=True),
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sa.Column("recurrence_rule", sa.Text(), nullable=True),
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sa.ForeignKeyConstraint(
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["group_id"],
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["groups.group_id"],
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name=op.f("fk_topic_schedule_group_id_groups"),
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),
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sa.ForeignKeyConstraint(
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["user_id"], ["users.user_id"], name=op.f("fk_topic_schedule_user_id_users")
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),
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sa.PrimaryKeyConstraint("schedule_id", name=op.f("pk_topic_schedule")),
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)
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op.create_index(
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op.f("ix_topic_schedule_group_id"), "topic_schedule", ["group_id"], unique=False
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)
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op.create_index(
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op.f("ix_topic_schedule_next_post_time"),
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"topic_schedule",
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["next_post_time"],
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unique=False,
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)
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op.create_check_constraint("title_length", "topic_schedule", "LENGTH(title) <= 200")
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# add the generic Tildes user (used to post scheduled topics by default)
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op.execute(
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"""
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INSERT INTO users (user_id, username, password_hash)
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VALUES(-1, 'Tildes', '')
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ON CONFLICT DO NOTHING
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"""
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)
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def downgrade():
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op.drop_constraint("ck_topic_schedule_title_length", "topic_schedule")
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op.drop_index(op.f("ix_topic_schedule_next_post_time"), table_name="topic_schedule")
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op.drop_index(op.f("ix_topic_schedule_group_id"), table_name="topic_schedule")
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op.drop_table("topic_schedule")
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# don't delete the Tildes user, won't work if it posted any topics
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