Rikard BartholfandGitHub
664c89b774
* WIP
* WIP - will organize code later
* Remove redundant view
* 🎨 Fix typo
* Cleanup
* Fix invalid column references
* Ensure start date is before end date on INSERT or UPDATE
* Fix migration number
77 lines
3.0 KiB
SQL
77 lines
3.0 KiB
SQL
-- ============================================================================
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-- Delete unused discount codes older than 2023-01-01 or having invalid dates.
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-- ============================================================================
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DELETE FROM discount_code_filters
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WHERE discount_code_id IN (
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SELECT discountid
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FROM discount_codes
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WHERE (SELECT COUNT(*) FROM order_rows s WHERE s.sub_type = 'discount_code' AND s.data ->> 'code' = code) = 0
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AND ("end" < '2023-01-01' OR start > "end")
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);
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DELETE FROM discount_codes
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WHERE discountid IN (
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SELECT discountid
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FROM discount_codes dc
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WHERE (SELECT COUNT(*) FROM order_rows s WHERE s.sub_type = 'discount_code' AND s.data ->> 'code' = code) = 0
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AND ("end" < '2023-01-01' OR start > "end")
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);
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-- ============================================================================
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-- Delete discounts with codes occuring more than once.
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-- Keep the latest inserted.
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-- ============================================================================
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CREATE INDEX IF NOT EXISTS ix_discount_codes_discountid_lower_code ON discount_codes (discountid, LOWER(code));
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DELETE FROM discount_code_filters
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WHERE NOT discount_code_id IN (
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SELECT discountid
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FROM discount_codes dc
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WHERE discountid = (
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SELECT MAX(discountid)
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FROM discount_codes dcs
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WHERE LOWER(dc.code) = LOWER(dcs.code)
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)
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);
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DELETE FROM discount_codes
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WHERE NOT discountid IN (
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SELECT discountid
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FROM discount_codes dc
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WHERE discountid = (
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SELECT MAX(discountid)
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FROM discount_codes dcs
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WHERE LOWER(dc.code) = LOWER(dcs.code)
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)
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);
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DROP INDEX IF EXISTS ix_discount_codes_discountid_lower_code;
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-- ============================================================================
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-- Make existing codes lower cased.
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-- ============================================================================
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-- Keep existing updated timestamps
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DROP TRIGGER IF EXISTS updated_timestamp ON public.discount_codes;
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UPDATE discount_codes
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SET code = LOWER(code);
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CREATE TRIGGER updated_timestamp
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BEFORE UPDATE
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ON public.discount_codes
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FOR EACH ROW
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EXECUTE FUNCTION public.updated_timestamp();
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-- ============================================================================
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-- Make code unique.
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-- ============================================================================
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CREATE UNIQUE INDEX IF NOT EXISTS uix_discount_codes_lower_code ON discount_codes (LOWER(code));
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-- ============================================================================
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-- Ensure start date is before end date.
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-- ============================================================================
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ALTER TABLE discount_codes
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ADD CONSTRAINT date_range_check
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CHECK (start <= "end");
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