fe6592859b85_fix_mwi_subscribe_replaces_ Namespace Reference

Functions
	downgrade ()
	upgrade ()

Variables
str	AST_BOOL_NAME = 'ast_bool_values'
list	AST_BOOL_VALUES
str	down_revision = '1d3ed26d9978'
str	revision = 'fe6592859b85'

Detailed Description

Fix mwi_subscribe_replaces_unsolicited

Revision ID: fe6592859b85
Revises: 1d3ed26d9978
Create Date: 2018-08-06 15:50:44.405534

Function Documentation

downgrade()

downgrade

(

)

Definition at line 40 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.

def downgrade():
    # First we need to ensure the column is using only the 'numeric' bool enum values.
    op.execute("UPDATE ps_endpoints SET mwi_subscribe_replaces_unsolicited='0'"
               " WHERE mwi_subscribe_replaces_unsolicited='off'"
               "  OR mwi_subscribe_replaces_unsolicited='false'"
               "  OR mwi_subscribe_replaces_unsolicited='no'")
    op.execute("UPDATE ps_endpoints SET mwi_subscribe_replaces_unsolicited='1'"
               " WHERE mwi_subscribe_replaces_unsolicited='on'"
               "  OR mwi_subscribe_replaces_unsolicited='true'"
               "  OR mwi_subscribe_replaces_unsolicited='yes'")
 
    # There is no direct way to convert from ENUM to Integer that is
    # not database specific so we transition through a string type.
    if op.get_context().bind.dialect.name == 'mssql':
        op.drop_constraint('ck_ps_endpoints_mwi_subscribe_replaces_unsolicited_ast_bool_values', 'ps_endpoints')
    op.alter_column('ps_endpoints', 'mwi_subscribe_replaces_unsolicited',
                    type_=sa.String(5))
    op.alter_column('ps_endpoints', 'mwi_subscribe_replaces_unsolicited',
            type_=sa.Integer, postgresql_using='mwi_subscribe_replaces_unsolicited::Integer')
 
    if op.get_context().bind.dialect.name == 'postgresql':
        ENUM(name=AST_BOOL_NAME).drop(op.get_bind(), checkfirst=False)

upgrade()

upgrade

(

)

Definition at line 26 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.

def upgrade():
    # Create the new enum
    ast_bool_values = ENUM(*AST_BOOL_VALUES, name=AST_BOOL_NAME, create_type=False)
    if op.get_context().bind.dialect.name == 'postgresql':
        ast_bool_values.create(op.get_bind(), checkfirst=False)
 
    # There is no direct way to convert from Integer to ENUM that is
    # not database specific so we transition through a string type.
    op.alter_column('ps_endpoints', 'mwi_subscribe_replaces_unsolicited',
                    type_=sa.String(5))
    op.alter_column('ps_endpoints', 'mwi_subscribe_replaces_unsolicited',
            type_=ast_bool_values, postgresql_using='mwi_subscribe_replaces_unsolicited::{0}'.format(AST_BOOL_NAME))
 
 

Variable Documentation

AST_BOOL_NAME

str AST_BOOL_NAME = 'ast_bool_values'

Definition at line 17 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.

AST_BOOL_VALUES

list AST_BOOL_VALUES

Initial value:

=  [ '0', '1',
                    'off', 'on',
                    'false', 'true',
                    'no', 'yes' ]

Definition at line 20 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.

down_revision

str down_revision = '1d3ed26d9978'

Definition at line 11 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.

revision

str revision = 'fe6592859b85'

Definition at line 10 of file fe6592859b85_fix_mwi_subscribe_replaces_.py.