77 lines
2.7 KiB
Python
77 lines
2.7 KiB
Python
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# Copyright 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Main purpose of this upgrade is to change the unique key on the
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pushers table again (it was missed when the v16 full schema was
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made) but this also changes the pushkey and data columns to text.
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When selecting a bytea column into a text column, postgres inserts
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the hex encoded data, and there's no portable way of getting the
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UTF-8 bytes, so we have to do it in Python.
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"""
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import logging
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logger = logging.getLogger(__name__)
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def run_upgrade(cur, database_engine, *args, **kwargs):
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logger.info("Porting pushers table...")
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cur.execute("""
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CREATE TABLE IF NOT EXISTS pushers2 (
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id BIGINT PRIMARY KEY,
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user_name TEXT NOT NULL,
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access_token BIGINT DEFAULT NULL,
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profile_tag VARCHAR(32) NOT NULL,
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kind VARCHAR(8) NOT NULL,
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app_id VARCHAR(64) NOT NULL,
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app_display_name VARCHAR(64) NOT NULL,
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device_display_name VARCHAR(128) NOT NULL,
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pushkey TEXT NOT NULL,
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ts BIGINT NOT NULL,
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lang VARCHAR(8),
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data TEXT,
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last_token TEXT,
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last_success BIGINT,
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failing_since BIGINT,
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UNIQUE (app_id, pushkey, user_name)
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)
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""")
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cur.execute("""SELECT
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id, user_name, access_token, profile_tag, kind,
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app_id, app_display_name, device_display_name,
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pushkey, ts, lang, data, last_token, last_success,
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failing_since
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FROM pushers
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""")
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count = 0
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for row in cur.fetchall():
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row = list(row)
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row[8] = bytes(row[8]).decode("utf-8")
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row[11] = bytes(row[11]).decode("utf-8")
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cur.execute(database_engine.convert_param_style("""
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INSERT into pushers2 (
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id, user_name, access_token, profile_tag, kind,
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app_id, app_display_name, device_display_name,
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pushkey, ts, lang, data, last_token, last_success,
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failing_since
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) values (%s)""" % (','.join(['?' for _ in range(len(row))]))),
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row
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)
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count += 1
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cur.execute("DROP TABLE pushers")
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cur.execute("ALTER TABLE pushers2 RENAME TO pushers")
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logger.info("Moved %d pushers to new table", count)
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