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5d5047fb13
Does two things:
1. Revert "Revert "Add unique constraint to email branding domain""
This reverts commit af9cb30ef3.
2. Don’t allow empty string in email branding domain
Columns with multiple `null`s can have a uniqueness constraint. Columns
with multiple empty string values are not considered unique.
This commit:
- removes any duplicate empty string values
- casts empty strings to null string any time these columns are updated
---
Squashed into this single commits because these two things are not
atomic as individual commits.
29 lines
578 B
Python
29 lines
578 B
Python
"""
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Revision ID: 0223_add_domain_constraint
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Revises: 0222_drop_service_branding
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Create Date: 2018-08-24 13:36:49.346156
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"""
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from alembic import op
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revision = '0223_add_domain_constraint'
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down_revision = '0222_drop_service_branding'
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def upgrade():
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op.execute("""
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update
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email_branding
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set
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domain = null
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where
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domain = ''
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""")
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op.create_unique_constraint('uq_email_branding_domain', 'email_branding', ['domain'])
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def downgrade():
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op.drop_constraint('uq_email_branding_domain', 'email_branding')
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