add printer get printers

dao/print_dao.go

@@ -0,0 +1,82 @@
+package dao
+
+import (
+	"git.rosy.net.cn/baseapi/utils"
+	"git.rosy.net.cn/jx-print/model"
+	"github.com/jmoiron/sqlx"
+)
+
+func GetPrinters(db *sqlx.DB, appID int, printNo string) (printers []*model.Printer, err error) {
+	sql := `
+		SELECT * 
+		  FROM printer 
+         WHERE 1 = 1 AND deleted_at = ?
+	`
+	sqlParams := []interface{}{utils.DefaultTimeValue}
+	if appID != 0 {
+		sql += " AND app_id = ?"
+		sqlParams = append(sqlParams, appID)
+	}
+	if printNo != "" {
+		sql += " AND print_no = ?"
+		sqlParams = append(sqlParams, printNo)
+	}
+	if err = db.Select(&printers, sql, sqlParams...); err == nil {
+		return printers, err
+	}
+	return printers, err
+}
+
+func GetPrintersPage(db *sqlx.DB, appID int, printNo, name string, status, isOnline, offset, pageSize int) (page *model.PagedInfo, err error) {
+	var (
+		printers []*model.Printer
+		count    = &struct {
+			Count int `json:"count"`
+		}{}
+	)
+	sqlCount := `
+		SELECT COUNT(*) count
+	`
+	sql := `
+		SELECT *
+	`
+	sqlOhter := `
+		  FROM printer 
+         WHERE 1 = 1 AND deleted_at = ?
+	`
+	sqlParams := []interface{}{utils.DefaultTimeValue}
+	if appID != 0 {
+		sqlOhter += " AND app_id = ?"
+		sqlParams = append(sqlParams, appID)
+	}
+	if printNo != "" {
+		sqlOhter += " AND print_no = ?"
+		sqlParams = append(sqlParams, printNo)
+	}
+	if name != "" {
+		sqlOhter += " AND name LIKE ?"
+		sqlParams = append(sqlParams, "%"+name+"%")
+	}
+	if status != model.StatusAll {
+		sqlOhter += " AND status = ?"
+		sqlParams = append(sqlParams, status)
+	}
+	if isOnline != model.StatusAll {
+		sqlOhter += " AND is_online = ?"
+		sqlParams = append(sqlParams, isOnline)
+	}
+	//查总数
+	row := db.DB.QueryRow(sqlCount+sqlOhter, sqlParams...)
+	if err = row.Scan(count.Count); err != nil {
+		return page, err
+	}
+	sqlOhter += " LIMIT ? OFFSET ?"
+	sqlParams = append(sqlParams, pageSize, offset)
+	if err = db.Select(&printers, sql+sqlOhter, sqlParams...); err == nil {
+		return &model.PagedInfo{
+			TotalCount: count.Count,
+			Data:       printers,
+		}, err
+	}
+	return page, err
+}