我正在计算特定问题的响应,并希望通过图表显示其响应计数。我正在使用此代码来计算响应。
<cfquery name="questions">
SELECT
questions.id,
questions.question as question,
questiontypes.name as questiontype,
questiontypes.template as template,
surveys.name as surveysname
FROM
questions
LEFT JOIN answers ON questions.id = answers.fkquestionid
INNER JOIN questiontypes ON questions.fkquestiontypeid = questiontypes.id
INNER JOIN surveys ON questions.fksurveyid = surveys.id
WHERE fksurveyid = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.surveyid#">
</cfquery>
<cfset response.question = questions>
<cfloop query="questions">
<cfswitch expression ="#questions.template#">
<cfcase value="truefalse">
<cfquery name="gettotaltruefalse">
SELECT COUNT( IF(result.truefalse = 1,1,NULL )) AS totaltrue,
COUNT( IF(result.truefalse = 0,0,NULL )) AS totalfalse,
COUNT( IF(result.truefalse = 1,1,NULL ))/COUNT(0)*100 AS trueperc,
COUNT( IF(result.truefalse = 0,0,NULL ))/COUNT(0)*100 AS falseperc
FROM results result
WHERE fkquestionid = <cfqueryparam cfsqltype="cf_sql_integer" value="#questions.id#">
AND NOT ISNULL(result.truefalse)
GROUP BY result.fkquestionid
</cfquery>
<cfset response.totaltruefalse = gettotaltruefalse>
</cfcase>
我正在使用此代码来显示图表。
<cfoutput query="rc.data.questions" group="id">
<cfchart format="flash" chartwidth="575" chartheight="575" show3d="yes">
<cfchartseries type="pie" paintstyle="raise" seriescolor="blue" datalabelstyle="pattern">
<cfchartdata item="true" value="#rc.data.totaltruefalse.totaltrue#">
<cfchartdata item="false" value="#rc.data.totaltruefalse.totalfalse#">
</cfchartseries>
</cfchart>
</cfoutput>
我的问题是,即使我在所有浏览器中都尝试过,它也显示空白而不是图表。