91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_db import exception as db_exc
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from oslo_versionedobjects import base
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from oslo_versionedobjects import fields
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import sqlalchemy as sa
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from placement.db.sqlalchemy import models
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from placement import db_api
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from placement import exception
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USER_TBL = models.User.__table__
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@db_api.placement_context_manager.writer
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def ensure_incomplete_user(ctx):
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"""Ensures that a user record is created for the "incomplete consumer
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user". Returns the internal ID of that record.
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"""
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incomplete_id = ctx.config.placement.incomplete_consumer_user_id
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sel = sa.select([USER_TBL.c.id]).where(
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USER_TBL.c.external_id == incomplete_id)
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res = ctx.session.execute(sel).fetchone()
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if res:
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return res[0]
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ins = USER_TBL.insert().values(external_id=incomplete_id)
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res = ctx.session.execute(ins)
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return res.inserted_primary_key[0]
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@db_api.placement_context_manager.reader
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def _get_user_by_external_id(ctx, external_id):
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users = sa.alias(USER_TBL, name="u")
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cols = [
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users.c.id,
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users.c.external_id,
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users.c.updated_at,
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users.c.created_at
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]
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sel = sa.select(cols)
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sel = sel.where(users.c.external_id == external_id)
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res = ctx.session.execute(sel).fetchone()
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if not res:
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raise exception.UserNotFound(external_id=external_id)
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return dict(res)
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@base.VersionedObjectRegistry.register_if(False)
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class User(base.VersionedObject):
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fields = {
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'id': fields.IntegerField(read_only=True),
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'external_id': fields.StringField(nullable=False),
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}
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@staticmethod
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def _from_db_object(ctx, target, source):
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for field in target.fields:
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setattr(target, field, source[field])
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target._context = ctx
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target.obj_reset_changes()
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return target
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@classmethod
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def get_by_external_id(cls, ctx, external_id):
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res = _get_user_by_external_id(ctx, external_id)
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return cls._from_db_object(ctx, cls(ctx), res)
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def create(self):
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@db_api.placement_context_manager.writer
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def _create_in_db(ctx):
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db_obj = models.User(external_id=self.external_id)
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try:
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db_obj.save(ctx.session)
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except db_exc.DBDuplicateEntry:
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raise exception.UserExists(external_id=self.external_id)
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self._from_db_object(ctx, self, db_obj)
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_create_in_db(self._context)
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