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MS-SQL has no native Enum-type support and therefore needs to work with constraints. Since these constraints need unique names the suggested approach referenced in the following alembic documentation has been applied: http://bit.ly/2x9r8pb ASTERISK-27255 #close Change-Id: I8b579750dae0c549f1103ee50172644afb9b2f95
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
#
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# Asterisk -- An open source telephony toolkit.
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#
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# Copyright (C) 2015, Richard Mudgett
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#
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# Richard Mudgett <rmudgett@digium.com>
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#
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# See http://www.asterisk.org for more information about
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# the Asterisk project. Please do not directly contact
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# any of the maintainers of this project for assistance;
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# the project provides a web site, mailing lists and IRC
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# channels for your use.
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#
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# This program is free software, distributed under the terms of
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# the GNU General Public License Version 2. See the LICENSE file
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# at the top of the source tree.
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#
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"""add rpid_immediate
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Revision ID: 23530d604b96
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Revises: 45e3f47c6c44
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Create Date: 2015-03-18 17:41:58.055412
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"""
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# revision identifiers, used by Alembic.
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revision = '23530d604b96'
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down_revision = '45e3f47c6c44'
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects.postgresql import ENUM
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YESNO_NAME = 'yesno_values'
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YESNO_VALUES = ['yes', 'no']
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def upgrade():
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############################# Enums ##############################
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# yesno_values have already been created, so use postgres enum object
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# type to get around "already created" issue - works okay with mysql
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yesno_values = ENUM(*YESNO_VALUES, name=YESNO_NAME, create_type=False)
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op.add_column('ps_endpoints', sa.Column('rpid_immediate', yesno_values))
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def downgrade():
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if op.get_context().bind.dialect.name == 'mssql':
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op.drop_constraint('ck_ps_endpoints_rpid_immediate_yesno_values','ps_endpoints')
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op.drop_column('ps_endpoints', 'rpid_immediate')
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