CFchart question

Question

If we allow users to add a review about a class they took,
the data is
stored in the following way:
Rev_ID, Rev_Class_Date, Rev_Class_Instructor, Rev_Knowledge,
Rev_Part
Rev_Friend, Rev_Prep, Rev_Expect, Rev_Cont, Rev_Enjoy,
Rev_Comments,
Rev_Comment_Date, Rev_Comment_Online, Rev_Overall
with the data looking like:
38, 2008-01-28, Steve Grosz, 5, 4, 5, 4, 5, 5, 5, Steve made
the class
enjoyable, 2008-02-21, 1, 1
How can I loop through all the dates, group the data, average
it, and have
each on a seperate line with points using CFchart?
I can do individual line graphs of dates if I specify what
dates to select
the data from. I have the code below doing a bar graph, but I
would like to
get a line graph with more than 1 date.
<cfquery name="chart" datasource="B">
select avg(rev_knowledge) as avg_know, avg(rev_part) as
avg_part,
avg(rev_friend) as avg_friend, avg(rev_prep) as avg_prep,
avg(rev_expect) as
avg_expect, avg(rev_cont) as avg_cont, avg(rev_enjoy) as
avg_enjoy
from class_review
where Rev_Class_Date="2008-04-21"
</cfquery>
<cfchart format="flash"
xaxistitle="Beginning Fencing Class"
yaxistitle="Class Review" showlegend="yes" chartwidth="500"
chartheight="400">
<cfchartseries type="bar"
query="chart"
itemcolumn="Knowledge"
valuecolumn="avg_know"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Participation"
valuecolumn="avg_part"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Friendliness"
valuecolumn="avg_friend"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Preparation"
valuecolumn="avg_prep"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Expectations Met"
valuecolumn="avg_expect"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Planning on Continuing"
valuecolumn="avg_cont"></cfchartseries>
<cfchartseries type="bar"
query="chart"
itemcolumn="Overall Enjoyment"
valuecolumn="avg_enjoy"></cfchartseries>
</cfchart>

Answer 1

specify seriesLabel attribute in each of your
<cfchartsereis> tags if
you do not already (i.e. one would be "Apples" and another
"Oranges"),
and then pass the $SERIESLABEL$ in the url along with
$ITEMLABEL$:
reportname.cfm?date=$itemlabel$&fruit=$serieslabel$
Azadi Saryev
Sabai-dee.com
http://www.sabai-dee.com/