Mercurial > libervia-backend
annotate sat/memory/migration/versions/79e5f3313fa4_create_table_for_pubsub_subscriptions.py @ 3862:100dd30244c6
core (memory/sqla): add argument to `getPubsubNode` to auto-create a node:
if the node is not in cache, the new `create` and `create_kwargs` arguments can be used to
automatically call `setPubsubNode`
rel 370
author | Goffi <goffi@goffi.org> |
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date | Wed, 20 Jul 2022 17:41:44 +0200 |
parents | 658ddbabaf36 |
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core (memory/sqla): new table/mapping to handle Pubsub node subscriptions:
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1 """create table for pubsub subscriptions |
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2 |
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3 Revision ID: 79e5f3313fa4 |
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4 Revises: 129ac51807e4 |
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5 Create Date: 2022-03-14 17:15:00.689871 |
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6 |
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7 """ |
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8 from alembic import op |
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9 import sqlalchemy as sa |
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10 from sat.memory.sqla_mapping import JID |
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11 |
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12 |
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13 # revision identifiers, used by Alembic. |
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14 revision = '79e5f3313fa4' |
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15 down_revision = '129ac51807e4' |
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16 branch_labels = None |
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17 depends_on = None |
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18 |
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19 |
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20 def upgrade(): |
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21 op.create_table('pubsub_subs', |
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22 sa.Column('id', sa.Integer(), nullable=False), |
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23 sa.Column('node_id', sa.Integer(), nullable=False), |
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24 sa.Column('subscriber', JID(), nullable=True), |
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25 sa.Column('state', sa.Enum('SUBSCRIBED', 'PENDING', name='state'), nullable=True), |
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26 sa.ForeignKeyConstraint(['node_id'], ['pubsub_nodes.id'], name=op.f('fk_pubsub_subs_node_id_pubsub_nodes'), ondelete='CASCADE'), |
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27 sa.PrimaryKeyConstraint('id', name=op.f('pk_pubsub_subs')), |
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28 sa.UniqueConstraint('node_id', 'subscriber', name=op.f('uq_pubsub_subs_node_id')) |
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29 ) |
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30 |
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31 |
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32 def downgrade(): |
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33 op.drop_table('pubsub_subs') |