grails createCriteria,createAlias创建左连接查询

def QueryResult findAllInOutStock(String manInfoName,String supplieName,String wareName,
                                      Integer category,Integer inOutType,Date beginTime,
                                      Date endTime,Integer offset,Integer max){
        def list=TbInoutStock.createCriteria().list {
            //createAlias 第三个参数控制链接，
            //0：表示inner join，
            //1：表示left outer join ，
            //2：表示right outer join
            createAlias("manufacturers", "manufacturers",1)
            if(manInfoName!=null && !"".equals(manInfoName)){
                like("manufacturers.fullName","%"+manInfoName+"%")
            }
            if(supplieName!=null && !"".equals(supplieName)){
                createAlias("selfSupplieInfo","selfSupplieInfo",1)
                createAlias("supplier","supplier",1)
                or {
                    like("selfSupplieInfo.fullName","%"+supplieName+"%")
                    like("supplier.fullName","%"+supplieName+"%")
                }
            }
            if(wareName!=null &&!"".equals(wareName)){
                createAlias("ware","ware",1)
                like("ware.fullName","%"+wareName+"%")
            }
            if(category!=null){
                eq("manufacturers.category",category)
            }
            if(inOutType!=null){
                eq("inOutType",inOutType)
            }
            if(beginTime!=null){
                gte("inOutDate",beginTime)
            }
            if(endTime!=null){
                lt("inOutDate",endTime)
            }
            eq("status",1)
            if(offset){
                firstResult(offset)
            }
            if(max){
                maxResults(max)
            }
            order("inOutDate","desc")
        }
        def totalCount=TbInoutStock.createCriteria().count{
            createAlias("manufacturers", "manufacturers",1)
            if(manInfoName!=null && !"".equals(manInfoName)){
                like("manufacturers.fullName","%"+manInfoName+"%")
            }
            if(supplieName!=null && !"".equals(supplieName)){
                createAlias("selfSupplieInfo","selfSupplieInfo",1)
                createAlias("supplier","supplier",1)
                or {
                    like("selfSupplieInfo.fullName","%"+supplieName+"%")
                    like("supplier.fullName","%"+supplieName+"%")
                }
            }
            if(wareName!=null &&!"".equals(wareName)){
                createAlias("ware","ware",1)
                like("ware.fullName","%"+wareName+"%")
            }
            if(category!=null){
                eq("manufacturers.category",category)
            }
            if(inOutType!=null){
                eq("inOutType",inOutType)
            }
            if(beginTime!=null){
                gte("inOutDate",beginTime)
            }
            if(endTime!=null){
                lt("inOutDate",endTime)
            }
            eq("status",1)
        }
        QueryResult queryResult=new QueryResult()
        queryResult.list=list
        queryResult.totalCount=totalCount
        return queryResult
    }

评论

1 楼 zywayh 2017-10-31  

您好,我想问一下,多表的联查怎么做,我们使用中间表,但是因为中间表没有关联,没办法用createAlias来链接查询,还有其他办法吗