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"""add new tables for the bookmarks and the tags of bookmarks
Revision ID: b329a1a7366f
Revises: 2c5cc05216fa
Create Date: 2017-05-23 21:42:37.636307
"""
# revision identifiers, used by Alembic.
revision = 'b329a1a7366f'
down_revision = '2c5cc05216fa'
branch_labels = None
depends_on = None
from datetime import datetime
from alembic import op
import sqlalchemy as sa
def upgrade():
op.drop_table('tag')
op.create_table('article_tag',
sa.Column('text', sa.String(), nullable=False),
sa.Column('article_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['article_id'], ['article.id'],
ondelete='CASCADE'),
sa.PrimaryKeyConstraint('text', 'article_id')
)
op.create_table('bookmark_tag',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('text', sa.String(), nullable=False),
sa.Column('user_id', sa.Integer(), nullable=False),
sa.Column('bookmark_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['bookmark_id'], ['bookmark.id'],
ondelete='CASCADE'),
sa.ForeignKeyConstraint(['user_id'], ['user.id'],
ondelete='CASCADE'),
sa.PrimaryKeyConstraint('id')
)
op.create_table('bookmark',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('href', sa.String(), default=""),
sa.Column('title', sa.String(), default=""),
sa.Column('description', sa.String(), default=""),
sa.Column('shared', sa.Boolean(), default=False),
sa.Column('to_read', sa.Boolean(), default=False),
sa.Column('time', sa.DateTime(), default=datetime.utcnow),
sa.Column('user_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['user_id'], ['user.id'],
ondelete='CASCADE'),
sa.PrimaryKeyConstraint('id')
)
def downgrade():
op.drop_table('article_tag')
op.drop_table('bookmark_tag')
op.drop_table('bookmark')
op.create_table('tag',
sa.Column('text', sa.String(), nullable=False),
sa.Column('article_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['article_id'], ['article.id'],
ondelete='CASCADE'),
sa.PrimaryKeyConstraint('text', 'article_id')
)
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