83 lines
2.7 KiB
Plaintext
83 lines
2.7 KiB
Plaintext
DELIMITER //
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CREATE OR REPLACE PROCEDURE sys_d_update_m3(
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IN p_tablename VARCHAR(100)
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)
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/*
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function : 配合 orm_api 的存檔後過帳, 當新增一筆 detail 後, update master 的合計欄位(目前先寫死 totalamount)
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description: 目前先配合 omi_api 的存檔後機制(sys_transaction) 執行, 希望能全部透過設定, 而不是每一個 table 都必須客製
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build date : 2023/10/14
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modify history
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item who date modify docs
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==== ========== ========== ================================================
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1 michael 2023-10-14 Init
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2 Michael 2025/07/20 改寫為 MariaDB 並最佳化(ChatGPT+DeepSeek)
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*/
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BEGIN
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DECLARE v_relation_key VARCHAR(100);
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DECLARE v_middle_field VARCHAR(100);
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DECLARE v_dest_table VARCHAR(100);
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DECLARE v_dest_field VARCHAR(100);
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DECLARE v_dest_field2 VARCHAR(100);
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DECLARE v_sql TEXT;
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DECLARE v_para01 VARCHAR(100);
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DECLARE v_para02 VARCHAR(100);
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DECLARE v_pos INT;
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DECLARE v_source_field VARCHAR(100);
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DECLARE v_source_field2 VARCHAR(100);
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-- get data
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SELECT
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IFNULL(RelationKey,''), IFNULL(MiddleField,''),
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IFNULL(para01,''), IFNULL(para02,''),
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IFNULL(dest_table,''), IFNULL(dest_field,''),
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IFNULL(dest_field2,'')
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INTO
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v_relation_key, v_middle_field, v_para01, v_para02,
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v_dest_table, v_dest_field, v_dest_field2
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FROM sys_transaction
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WHERE tablename = p_tablename;
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-- prepare sql
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SET v_pos = LOCATE('=', v_dest_field);
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IF v_pos > 0 THEN
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SET v_source_field = SUBSTRING(v_dest_field, 1, v_pos-1);
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SET v_dest_field = SUBSTRING(v_dest_field, v_pos+1);
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END IF;
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SET v_pos = LOCATE('=', v_dest_field2);
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IF v_pos > 0 THEN
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SET v_source_field2 = SUBSTRING(v_dest_field2, 1, v_pos-1);
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SET v_dest_field2 = SUBSTRING(v_dest_field2, v_pos+1);
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END IF;
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-- build SQL
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IF v_dest_field2 IS NULL OR v_dest_field2 = '' THEN
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SET @sql = CONCAT(
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'UPDATE ', v_dest_table, ' d ',
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'JOIN (SELECT ', v_middle_field, ', ', v_source_field,
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' FROM ', p_tablename,
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' WHERE ', v_relation_key, ' = ''', v_para01, ''') s ',
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'ON d.', v_middle_field, ' = s.', v_middle_field, ' ',
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'SET d.', v_dest_field, ' = s.', v_source_field, ';'
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);
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ELSE
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SET @sql = CONCAT(
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'UPDATE ', v_dest_table, ' d ',
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'JOIN (SELECT ', v_middle_field, ', ', v_source_field, ', ', v_source_field2,
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' FROM ', p_tablename,
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' WHERE ', v_relation_key, ' = ''', v_para01, ''') s ',
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'ON d.', v_middle_field, ' = s.', v_middle_field, ' ',
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'SET d.', v_dest_field, ' = s.', v_source_field,
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', d.', v_dest_field2, ' = s.', v_source_field2, ';'
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);
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END IF;
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-- exec SQL
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PREPARE stmt FROM @sql;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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END //
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DELIMITER ; |