Gered
aca45d9631
can now run the application from the command line to invoke the various data import/update or image scraping operations. removed all copies of scraped set/symbol/mana images
73 lines
1.8 KiB
PL/PgSQL
73 lines
1.8 KiB
PL/PgSQL
ALTER TABLE cards ADD COLUMN paper_price DECIMAL(10, 2);
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ALTER TABLE cards ADD COLUMN online_price DECIMAL(10, 2);
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CREATE INDEX cards_paper_price_idx ON cards (paper_price);
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CREATE INDEX cards_paper_price_nulls_first_idx ON cards (paper_price NULLS FIRST);
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CREATE INDEX cards_online_price_idx ON cards (online_price);
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CREATE INDEX cards_online_price_nulls_first_idx ON cards (online_price NULLS FIRST);
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--
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-- trigger to run whenever a card_price row is added/updated that fills in
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-- both the online_price and paper_price columns of the corresponding card
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--
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CREATE OR REPLACE FUNCTION most_recent_card_price()
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RETURNS TRIGGER
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AS $most_recent_card_price$
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DECLARE
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update_card_id TEXT;
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BEGIN
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IF (TG_OP = 'DELETE') THEN
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update_card_id = OLD.card_id;
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ELSE
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update_card_id = NEW.card_id;
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END IF;
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UPDATE cards
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SET
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paper_price = (
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SELECT cp.price
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FROM card_prices cp
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WHERE cp.card_id = update_card_id AND cp.online = FALSE
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ORDER BY cp.last_updated_at DESC
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LIMIT 1
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),
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online_price = (
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SELECT cp.price
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FROM card_prices cp
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WHERE cp.card_id = update_card_id AND cp.online = TRUE
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ORDER BY cp.last_updated_at DESC
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LIMIT 1
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)
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WHERE id = update_card_id;
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RETURN NULL;
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END;
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$most_recent_card_price$ LANGUAGE plpgsql;
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CREATE TRIGGER cards_update_most_recent_card_price_trigger
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AFTER INSERT OR UPDATE OR DELETE ON card_prices
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FOR EACH ROW EXECUTE PROCEDURE most_recent_card_price();
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--
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-- fill in paper_price / online_price columns in any existing cards
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--
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UPDATE cards c
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SET
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paper_price = (
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SELECT cp.price
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FROM card_prices cp
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WHERE cp.card_id = c.id AND cp.online = FALSE
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ORDER BY cp.last_updated_at DESC
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LIMIT 1
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),
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online_price = (
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SELECT cp.price
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FROM card_prices cp
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WHERE cp.card_id = c.id AND cp.online = TRUE
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ORDER BY cp.last_updated_at DESC
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LIMIT 1
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);
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