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75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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"""smaller_grid
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Revision ID: e866bd2d4976
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Revises: 21e88bc06c02
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Create Date: 2018-02-13 08:07:40.766277
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"""
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import json
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.ext.declarative import declarative_base
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from flask_appbuilder.models.mixins import AuditMixin
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from superset import db
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revision = 'e866bd2d4976'
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down_revision = '21e88bc06c02'
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Base = declarative_base()
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RATIO = 4
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class Dashboard(Base):
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"""Declarative class to do query in upgrade"""
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__tablename__ = 'dashboards'
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id = sa.Column(sa.Integer, primary_key=True)
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position_json = sa.Column(sa.Text)
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dashboard_title = sa.Column(sa.String(500))
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def upgrade():
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bind = op.get_bind()
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session = db.Session(bind=bind)
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dashboards = session.query(Dashboard).all()
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for i, dashboard in enumerate(dashboards):
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print('Upgrading ({}/{}): {}'.format(
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i, len(dashboards), dashboard.id))
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positions = json.loads(dashboard.position_json or '{}')
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for pos in positions:
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if pos.get('v', 0) == 0:
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pos['size_x'] = pos['size_x'] * RATIO
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pos['size_y'] = pos['size_y'] * RATIO
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pos['col'] = ((pos['col'] - 1) * RATIO) + 1
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pos['row'] = pos['row'] * RATIO
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pos['v'] = 1
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dashboard.position_json = json.dumps(positions, indent=2)
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session.merge(dashboard)
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session.commit()
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session.close()
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def downgrade():
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bind = op.get_bind()
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session = db.Session(bind=bind)
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dashboards = session.query(Dashboard).all()
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for i, dashboard in enumerate(dashboards):
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print('Downgrading ({}/{}): {}'.format(
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i, len(dashboards), dashboard.id))
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positions = json.loads(dashboard.position_json or '{}')
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for pos in positions:
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if pos.get('v', 0) == 1:
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pos['size_x'] = pos['size_x'] / 4
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pos['size_y'] = pos['size_y'] / 4
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pos['col'] = ((pos['col'] - 1) / 4) + 1
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pos['row'] = pos['row'] / 4
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pos['v'] = 0
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dashboard.position_json = json.dumps(positions, indent=2)
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session.merge(dashboard)
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session.commit()
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pass
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