29 lines
768 B
Go
29 lines
768 B
Go
package dao
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import (
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"errors"
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"git.rosy.net.cn/jx-callback/business/model"
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)
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// DeductionPrintBalance 扣除打印机账号余额
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/*func DeductionPrintBalance(db *DaoDB, printNo string) error {
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_, err := ExecuteSQL(db, `UPDATE print_bill SET print_balance = print_balance -1 WHERE print_no = ?`, []interface{}{printNo}...)
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return err
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}*/
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// DeductionPrintBalance 扣除打印机账号余额
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func DeductionPrintBalance(db *DaoDB, printNo string) error {
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var data *model.PrintBill
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if err := GetRow(db, &data, `SELECT * FROM print_bill WHERE print_no = ?`, []interface{}{printNo}...); err != nil {
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return err
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}
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if data == nil {
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return errors.New("数据异常")
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}
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data.PrintBalance -= 1
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_, err := UpdateEntity(db, data, "print_balance")
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return err
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}
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