81 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Python
		
	
	
| # Copyright 2015, 2016 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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| 
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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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| 
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| import logging
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| def run_create(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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| 
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| 
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| def run_upgrade(*args, **kwargs):
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|     pass
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