88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
package queries
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const CREATE_ITEM = `
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INSERT INTO item(item_name, in_season) VALUES ($1, $2);
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`
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const CREATE_ITEM_PRICE = `
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INSERT INTO item_price_history(item_id, price) VALUES ($1, $2);
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`
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const SET_ITEM_PRICE_VALID_TO_DATE = `
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UPDATE item_price_history SET valid_to = now()
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WHERE item_id IN (
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SELECT item_id FROM item_price_history WHERE item_id = $1 ORDER BY valid_from DESC LIMIT 1
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)
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`
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const GET_CURRENT_ITEM_PRICE = `
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SELECT
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i.id,
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i.item_name,
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iph.price AS unit_price
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FROM item i
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INNER JOIN item_price_history iph ON iph.item_id = i.id
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AND i.id = $1
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ORDER BY iph.valid_from DESC
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LIMIT 1;
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`
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const GET_ORDER_ITEM_PRICE = `
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SELECT
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oi.item_id,
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oi.order_id,
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i.item_name,
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oi.quantity,
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oi.made,
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oi.created_at,
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oi.quantity * iph.price AS total_price,
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iph.price AS unit_price
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FROM
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order_item oi
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INNER JOIN item i ON oi.item_id = i.id
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AND oi.item_id = $1
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AND oi.order_id = $2
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INNER JOIN item_price_history iph ON iph.item_id = i.id
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AND iph.valid_from <= oi.created_at
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AND (iph.valid_to IS NULL OR iph.valid_to > oi.created_at);
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`
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const ADD_ITEM_TO_ORDER = `
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INSERT INTO order_item (item_id, order_id, quantity, created_at) VALUES ($1, $2, $3, $4) ON CONFLICT (item_id, order_id) DO UPDATE SET
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quantity = $3,
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created_at = $4`
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const SET_QUANTITY = `
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UPDATE order_item SET quantity = $1 WHERE item_id = $2 AND order_id = $3;
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`
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const SET_MADE = `
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UPDATE order_item SET made = $1 WHERE item_id = $2 AND order_id = $3;
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`
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const GET_ORDER_ITEMS = `
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SELECT
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oi.item_id,
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oi.order_id,
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i.item_name,
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oi.quantity,
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oi.made,
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oi.created_at,
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oi.quantity * iph.price AS total_price,
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iph.price AS unit_price
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FROM
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order_item oi
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INNER JOIN item i ON oi.item_id = i.id
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AND oi.order_id = $1
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INNER JOIN item_price_history iph ON iph.item_id = i.id
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AND iph.valid_from <= oi.created_at
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AND (iph.valid_to IS NULL OR iph.valid_to > oi.created_at);
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`
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const REMOVE_ITEM_FROM_ORDER = `
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DELETE FROM order_item WHERE item_id = $1 AND order_id = $2;
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`
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const SET_ITEM_IS_IN_SEASON = `
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UPDATE item SET in_season = $1 WHERE id = $2;
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`
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