87 lines
2.2 KiB
Plaintext
87 lines
2.2 KiB
Plaintext
DELIMITER //
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CREATE OR REPLACE FUNCTION zen_get_keyvalue(
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p_tablename VARCHAR(100),
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p_fieldname VARCHAR(20)
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)
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RETURNS TEXT
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DETERMINISTIC
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/*
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Function : 改寫成 api 給 amis 呼叫時, 如果一個 Form 上有多個 select 是固定內容
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Description: 如上
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Build Date : 2022/02/16
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Modify History
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Item Who Date Modify Docs
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===M= ========== ========== ================================================
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1 Michael 2022/02/16 Init
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*/
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BEGIN
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DECLARE v_cnt INT;
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DECLARE v_crlf VARCHAR(2);
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DECLARE v_comma VARCHAR(1);
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DECLARE v_value VARCHAR(100);
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DECLARE v_label VARCHAR(100);
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DECLARE v_rets TEXT;
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DECLARE v_imax INT;
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DECLARE v_inow INT;
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DECLARE v_rowid INT DEFAULT 1;
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-- 臨時表儲存 JSON 數據
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DROP TEMPORARY TABLE IF EXISTS temp_jsondata;
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CREATE TEMPORARY TABLE temp_jsondata (
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rowid INT AUTO_INCREMENT PRIMARY KEY,
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value VARCHAR(100),
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label VARCHAR(100)
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);
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SET v_crlf = CONCAT(CHAR(13), CHAR(10));
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-- 檢查是否有設定到 tablename
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SELECT COUNT(*) INTO v_cnt FROM zen_keyvalue
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WHERE tablename = p_tablename AND fieldname = p_fieldname;
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IF v_cnt > 0 THEN
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INSERT INTO temp_jsondata (value, label)
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SELECT keyid AS value, keyvalue AS label
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FROM zen_keyvalue
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WHERE tablename = p_tablename AND fieldname = p_fieldname;
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ELSE
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INSERT INTO temp_jsondata (value, label)
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SELECT keyid AS value, keyvalue AS label
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FROM zen_keyvalue
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WHERE tablename = 'xxxx' AND fieldname = p_fieldname;
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END IF;
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-- 回傳 options []
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SELECT COUNT(*) INTO v_imax FROM temp_jsondata;
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SET v_inow = 1;
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SET v_rets = '';
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SET v_comma = ',';
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WHILE v_inow <= v_imax DO
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IF v_inow = v_imax THEN
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SET v_comma = '';
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END IF;
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SELECT value, label INTO v_value, v_label
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FROM temp_jsondata
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WHERE rowid = v_inow;
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SET v_rets = CONCAT(v_rets,
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' {', v_crlf,
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' "label": "', v_label, '",', v_crlf,
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' "value": "', v_value, '"', v_crlf,
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' }', v_comma, v_crlf);
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SET v_inow = v_inow + 1;
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END WHILE;
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SET v_rets = CONCAT('"options": [ ', v_rets, ' ],', v_crlf);
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DROP TEMPORARY TABLE IF EXISTS temp_jsondata;
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RETURN v_rets;
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END //
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DELIMITER ; |