Remove FK relation from device to device_info

migrations/versions/885123e6a2d6_remove_fk_relation_from_device_to_.py

@@ -0,0 +1,28 @@
+"""Remove FK relation from device to device_info
+
+Revision ID: 885123e6a2d6
+Revises: 002656878233
+Create Date: 2019-04-27 14:22:30.841969
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '885123e6a2d6'
+down_revision = '002656878233'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.drop_index('ix_device_infos_device_id', table_name='device_infos')
+    op.drop_constraint('device_infos_device_id_fkey', 'device_infos', type_='foreignkey')
+    op.drop_column('device_infos', 'device_id')
+
+
+def downgrade():
+    op.add_column('device_infos', sa.Column('device_id', sa.INTEGER(), autoincrement=False, nullable=True))
+    op.create_foreign_key('device_infos_device_id_fkey', 'device_infos', 'devices', ['device_id'], ['id'], ondelete='SET NULL')
+    op.create_index('ix_device_infos_device_id', 'device_infos', ['device_id'], unique=False)

ogn_python/model/device.py

@@ -39,7 +39,6 @@ class Device(db.Model):
 
         return query.first()
 
-    # Todo: remove FK from DeviceInfo
     def get_infos(self):
         query = db.session.query(DeviceInfo) \
             .filter(DeviceInfo.address == self.address) \

ogn_python/model/device_info.py

@@ -17,10 +17,6 @@ class DeviceInfo(db.Model):
 
     address_origin = db.Column(db.SmallInteger)
 
-    # Relations (deprecated)
-    device_id = db.Column(db.Integer, db.ForeignKey('devices.id', ondelete='SET NULL'), index=True)
-    device = db.relationship('Device', foreign_keys=[device_id], backref=db.backref('infos', order_by='DeviceInfo.address_origin.asc()'))
-
     def __repr__(self):
         return "<DeviceInfo: %s,%s,%s,%s,%s,%s,%s,%s,%s>" % (
             self.address_type,