1

dao/print_activation.go

@@ -0,0 +1,18 @@
+package dao
+
+import "git.rosy.net.cn/jx-print/globals"
+
+type PrintActivation struct {
+}
+
+var PrintActivationDao = new(PrintActivation)
+
+// QueryPrintHeartBeat 查询打印机是否心跳监听正常
+func (p *PrintActivation) QueryPrintHeartBeat(printNo string) (bool, error) {
+	count := 0
+	err := globals.GetDB().QueryRow(`SELECT count(print_no) FROM print_activation WHERE print_no = ?`, []interface{}{printNo}...).Scan(&count)
+	if err != nil {
+		return false, err
+	}
+	return count == 1, nil
+}