coldfusion - CFML 将evaluate() 查询字符串转换为结构语法

Question

我在循环内部有下面的代码，以便循环迭代我正在设置一个动态变量 temp到 getAdvisor_Advisors.advisor_ID 的值对于当前循环迭代。

<cfset temp = "getAdvisor_Advisors#LoopCount#.advisor_ID">

下面的这个 cfinvoke 调用了一个我在动态“temp”变量中传递的查询，但必须使用它周围的慢速评估(temp)来获得正确的值。

<cfinvoke component="com.appointments" method="get_All_Appointments" returnvariable="getAppointments">
      <cfinvokeargument name="Advisor_ID" value="#evaluate(temp)#">
      <cfinvokeargument name="StartDay" value="#dateFormat(form.cal,'dd')#">
      <cfinvokeargument name="StartMonth" value="#dateFormat(form.cal,'mm')#">
      <cfinvokeargument name="StartYear" value="#dateformat(form.cal,'yyyy')#">             
</cfinvoke>

我想重写 temp变量和 evaluate()不使用评估。有人告诉我，我可以使用结构语法来引用它，如下所示:

没有评估:

<cfset foo = qBar["text#lang#"][CurrentRow]>
getAdvisor_Advisor["advisor_ID"][CurrentRow]

我如何重写

<cfset temp = "getAdvisor_Advisors#LoopCount#.advisor_ID">

使用结构语法？

添加更多代码，以便您了解为什么这很复杂，这些是复合循环。

            <cfquery name="getAdvisor_Advisors1" dbtype="query" cachedWithin="#CreateTimeSpan(0,0,15,0)#">
                Select *
                From getAdvisors
                Where Express = 'FR/SO' 
                Order by Specialization, Advisor
            </cfquery>

            <cfquery name="getAdvisor_Advisors2" dbtype="query" cachedWithin="#CreateTimeSpan(0,0,15,0)#">
                Select *
                From getAdvisors
                Where Express = 'JR/SR' 
                Order by Specialization, Advisor
            </cfquery>

            <cfquery name="getAdvisor_Advisors3" dbtype="query" cachedwithin="#CreateTimeSpan(0,0,15,0)#">
                Select *
                From getAdvisors
                Where Specialization IS NULL AND Appointments = 1 AND Campus_ID > 0
                Order by Campus_ID, Advisor
            </cfquery>

            <cfquery name="getAdvisor_Advisors4" dbtype="query" cachedwithin="#CreateTimeSpan(0,0,15,0)#">
                Select *
                From getAdvisors
                Where Specialization IS NOT NULL
                AND Title != 'BCC-GA' 
                Order by Specialization, Advisor
            </cfquery>

            <div id="calendarGrid">
                <!--- looping over the filter queries above that split advisors into groups --->   
                <cfloop index="LoopCount" from = "1" to = "4"> 
                    <!--- FR/SO Advisors --->
                    <cfif LoopCount LTE 3>
                        <cfset currGroup = "campus_id">
                    <cfelse>
                        <cfset currGroup = "specialization">
                   </cfif>
                    <cfoutput query="getAdvisor_Advisors#LoopCount#" group="#currGroup#">
                    <div class="advisorGrouping">
                        <div id="calcontainer">
                            <table class="pickme" border="0" cellspacing="1" cellpadding="1">
                                <tr class="hdr">
                                    <td width="6.9%">
                                        <cfif (Specialization IS "BCC") OR (Specialization IS "HONORS")>
                                            #uCase(Specialization)#
                                        <cfelse>                           
                                            #uCase(Campus_Text)# 
                                        <cfif Len(Express) NEQ 0>
                                            - #uCase(Express)#
                                        </cfif>
                                    </cfif>
                                    </td>
                                    <td width="4.9%" class="border">8:00</td>
                                    <td width="4.9%" class="border">8:30</td>
                                    <td width="4.9%" class="border">9:00</td>
                                    <td width="4.9%" class="border">9:30</td>
                                    <td width="4.9%" class="border">10:00</td>
                                    <td width="4.9%" class="border">10:30</td>
                                    <td width="4.9%" class="border">11:00</td>
                                    <td width="4.9%" class="border">11:30</td>
                                    <td width="4.9%" class="border">12:00</td>
                                    <td width="4.9%" class="border">12:30</td>
                                    <td width="4.9%" class="border">1:00</td>
                                    <td width="4.9%" class="border">1:30</td>
                                    <td width="4.9%" class="border">2:00</td>
                                    <td width="4.9%" class="border">2:30</td>
                                    <td width="4.9%" class="border">3:00</td>
                                    <td width="4.9%" class="border">3:30</td>
                                    <td width="4.9%" class="border">4:00</td>
                                    <td width="4.9%" class="border">4:30</td>
                                    <td width="4.9%" class="border">5:00</td>
                                </tr>
                                <cfoutput group="advisor_id">


                                    <cfset temp = "getAdvisor_Advisors#LoopCount#.advisor_ID">


                                    <!--- get Appts for cal date --->   
                                    <cfinvoke component="com.appointments" method="get_All_Appointments" returnvariable="getAppointments">
                                        <cfinvokeargument name="Advisor_ID" value="#evaluate(temp)#">
                                        <cfinvokeargument name="StartDay" value="#dateFormat(form.cal,'dd')#">
                                        <cfinvokeargument name="StartMonth" value="#dateFormat(form.cal,'mm')#">
                                        <cfinvokeargument name="StartYear" value="#dateformat(form.cal,'yyyy')#">             
                                    </cfinvoke>  

Answer 1

您当前的方法比必要的更复杂，并且您的循环内部有太多事情要做。从每次循环迭代不会改变的事情开始。

myObject = CreateObject("component","com.appointments");
argumentStructure = StructNew();
argumentStructure.StartDay= dateFormat(form.cal,'dd');
argumentStructure.StartMonth= dateFormat(form.cal,'mm');
argumentStructure.StartYear = dateFormat(form.cal,'yyyy');
</cfscript>

然后做你的循环。

<cfloop query = "getAdvisor_Advisor">
<cfscript>
argumentStructure.advisor_ID = advisor_ID;
variableFromObject = myObject.get_All_Appointments(argumentCollection = argumentStructure);
//  code to process that variable
</cfscript>
</cfloop>

请注意，该问题没有关于方法返回什么的信息。该特定细节可能会影响答案的最后一部分。