当我必须按照 Order by 子句获得结果时如何使用 Queryfilter 函数

Question

我在尝试执行以下代码时遇到错误：

myQuery = queryNew("id,name,amount","Integer,Varchar,Integer", 
            [ 
                    {id=1,name="One",amount=15}, 
                    {id=2,name="Two",amount=18}, 
                    {id=3,name="Three",amount=32},
                    {id=4,name="Four",amount=27},
                    {id=5,name="Five",amount=43},
                    {id=6,name="Six",amount=71}
            ]);

get=myQuery.filter(function(obj){
   return (order by obj.name )
});
writeOutput("The filtered query is:")
writeDump(get);

错误显示"Invalid CFML construct found on line 16 at column 22."

我知道上面的错误是因为 order by obj.name 作为 return 中的参数。但是我怎样才能做到没有任何错误呢？谢谢你。

Answer 1

要执行 order by，您需要执行 sort() 而不是 filter()。

<cfscript>
myQuery = queryNew("id,name,amount","Integer,Varchar,Integer", 
            [ 
                    {id=1,name="One",amount=15}, 
                    {id=2,name="Two",amount=18}, 
                    {id=3,name="Three",amount=32},
                    {id=4,name="Four",amount=27},
                    {id=5,name="Five",amount=43},
                    {id=6,name="Six",amount=71}
            ]);

myQuery.sort("name", "desc");
writeOutput("The filtered query is:")
writeDump(myQuery);
</cfscript>

https://trycf.com/gist/f827f61a03a173a3b13ad01a2cd13dce/lucee5?theme=monokai

已编辑：无需引用 get，只需引用查询本身即可。

当我必须按照 Order by 子句获得结果时如何使用 Queryfilter 函数

how to use Queryfilter function when I have to get results in terms Order by clause

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