Question

我的控制器中有使用动态查找器的列表代码

def listPurchaseRequest(Integer max){
    params.max = Math.min(max ?: 5, 100)

    def purchaseRequestList = PurchaseRequest.list (params)     
    if ( params.query) {
        purchaseRequestList = PurchaseRequest.findAllByRequestByLikeOrRequestNumberLike("%${params.query}%", "%${params.query}%", params)
    }

    [purchaseRequestInstanceList: purchaseRequestList,
     purchaseRequestInstanceTotal: //this]
}

我的搜索和列表正在工作，除了我的分页。

<g:paginate total="${purchaseRequestInstanceTotal}" params="${params}" maxsteps="3" prev="&laquo;" next="&raquo;" />

如果我使用purchaseRequestList.totalCount它可以使用默认列表，但是当我搜索后显示结果时，它会给我Exception evaluating property 'totalCount' for java.util.ArrayList, Reason: groovy.lang.MissingPropertyException: No such property: totalCount for class: rms.PurchaseRequest错误

如果我使用purchaseRequestList.count()它会给我Could not find which method count() to invoke from this list: public java.lang.Number java.util.Collection#count(groovy.lang.Closure) public java.lang.Number java.util.Collection#count(java.lang.Object)错误

Answer 1

您需要使用CountBy*方法进行搜索。试试这个

def listPurchaseRequest(Integer max){
    params.max = Math.min(max ?: 5, 100)

    def purchaseRequestList, count  

    if (params.query) {
        purchaseRequestList = PurchaseRequest.findAllByRequestByLikeOrRequestNumberLike("%${params.query}%", "%${params.query}%", params)
        count = PurchaseRequest.countByRequestByLikeOrRequestNumberLike("%${params.query}%", "%${params.query}%")
    } else {
        purchaseRequestList = PurchaseRequest.list (params)
        count = purchaseRequestList.totalCount
    }

    [purchaseRequestInstanceList: purchaseRequestList,
     purchaseRequestInstanceTotal: count]
}

仅供参考，我将.list()移至else条款，以便在list设置时保存您同时调用findBy和params.query。

Grails分页不起作用

1 个答案: