43 lines
1.2 KiB
MySQL
43 lines
1.2 KiB
MySQL
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-- Migration: Add slug field to clients table
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-- Description: Adds a unique slug field to the clients table for URL-friendly client identification
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ALTER TABLE clients
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ADD COLUMN slug VARCHAR(255);
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-- Add unique index on slug field
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CREATE UNIQUE INDEX IF NOT EXISTS idx_clients_slug ON clients(slug);
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-- Add comment
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COMMENT ON COLUMN clients.slug IS 'URL-friendly slug generated from client name';
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-- Update existing records with slugs based on their names
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-- Note: This will generate slugs for existing clients
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UPDATE clients
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SET slug = LOWER(
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REGEXP_REPLACE(
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REGEXP_REPLACE(name, '[^a-zA-Z0-9\s-]', '', 'g'),
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'\s+', '-', 'g'
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)
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)
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WHERE slug IS NULL OR slug = '';
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-- Handle potential duplicates by appending numbers
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WITH numbered_slugs AS (
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SELECT
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id,
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slug,
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ROW_NUMBER() OVER (PARTITION BY slug ORDER BY created_at) as rn
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FROM clients
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WHERE slug IS NOT NULL
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)
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UPDATE clients
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SET slug = CASE
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WHEN ns.rn > 1 THEN ns.slug || '-' || ns.rn
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ELSE ns.slug
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END
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FROM numbered_slugs ns
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WHERE clients.id = ns.id AND ns.rn > 1;
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-- Make slug field NOT NULL after populating existing data
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ALTER TABLE clients ALTER COLUMN slug SET NOT NULL;
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