触发器：取合同订单明细最低折扣率，放在表头上一个自定义字段中。用于审批条件判断

SET @modulename='SalesOrder';
SET @tabid=(SELECT tabid FROM ld_tab WHERE `name`=@modulename);
SET @relateid=(SELECT block FROM ld_field WHERE tabid=@tabid AND columnname='smownerid' LIMIT 1);
SET @maxseq=IFNULL((SELECT MAX(sequence) FROM ld_field WHERE tabid=@tabid AND block=@relateid),0);
SET @trantable='ld_field';
SET @tablename=(SELECT tablename FROM ld_field WHERE tabid=@tabid AND columnname='smownerid' LIMIT 1);
SET @columnname='low_discount';
SET @fieldname='low_discount';
SET @zh='最低折扣';
SET @en='最低折扣';
SET @uitype=1;
SET @typeofdata='V~O';
SET @quickcreate=0;
SET @displaytype=2;
SET @bigtype='text';
SET @datarang=NULL;
SET @maxrowsshow=0;

SET @maxid=(SELECT MAX(fieldid) FROM ld_field);

INSERT INTO ld_field(tabid,fieldid,columnname,tablename,generatedtype,uitype,fieldname,fieldlabel,readonly,presence,defaultvalue,maximumlength,sequence,block,displaytype,typeofdata,quickcreate,quickcreatesequence,info_type,masseditable,helpinfo,fieldonly,approve_demand,is_checkimportfield,bigtype,datarang,maxrowsshow)
SELECT @tabid,@maxid+1,@columnname,@tablename,1,@uitype,@fieldname,@zh,1,2,NULL,100,@maxseq+1,@relateid,@displaytype,@typeofdata,@quickcreate,NULL,NULL,1,NULL,0,2,0,@bigtype,@datarang,@maxrowsshow from dual
WHERE NOT EXISTS (SELECT 1 FROM ld_field WHERE tabid=@tabid AND tablename=@tablename AND columnname=@columnname);

UPDATE ld_field_seq SET id=(SELECT max(fieldid) FROM ld_field);

SET @relateid=(SELECT fieldid FROM ld_field WHERE tabid=@tabid AND columnname=@columnname LIMIT 1);

INSERT INTO ld_tranlabel(languagetype,trantable,tabid,relateid,fieldlabel)
SELECT 'zh',@trantable,@tabid,@relateid,@zh FROM DUAL
WHERE NOT EXISTS (SELECT 1 FROM ld_tranlabel WHERE languagetype = 'zh' AND trantable =@trantable AND tabid = @tabid AND relateid=@relateid);

INSERT INTO ld_tranlabel(languagetype,trantable,tabid,relateid,fieldlabel)
SELECT 'en',@trantable,@tabid,@relateid,@en FROM DUAL
WHERE NOT EXISTS (SELECT 1 FROM ld_tranlabel WHERE languagetype = 'en' AND trantable =@trantable AND tabid = @tabid AND relateid=@relateid);

CALl AddColumn(@tablename,@columnname,'VARCHAR','100',NULL);

CALL getallprofile(@modulename);
CALL fieldprofile(@modulename);



DROP TRIGGER IF EXISTS `update_by_salesorder1`;
DELIMITER ;;
CREATE TRIGGER `update_by_salesorder1` BEFORE UPDATE ON `ld_salesorder` FOR EACH ROW BEGIN

        IF NEW.triggercount<>OLD.triggercount THEN
                SET NEW.receivable_balance=ROUND(IFNULL(NEW.total,0)-IFNULL(NEW.received_amount,0),2);
        END IF;

        -- 取产品分录中的最低折扣
        SET NEW.low_discount=(SELECT MIN(discount_percent) FROM ld_salesorderdetail WHERE id=NEW.salesorderid);

END
;;
DELIMITER ;