Using RRW3_WEBRFC to insert BW query template into BSP: chart not visible

Question

Hi people,
I've done a BSP page which calls a BW query template throught RRW3_WEBRFC function and inserts its code in the BSP. I've used the example code BW web reporting inside a BSP page. and all is OK but the charts.
Charts are not displayed. I change the "<img src..." of the dowloaded HTML and the chart is displayed in Firefox, but not in Internet Explorer. I've asked more people to test the BSP page with its Explorer, a no one can see the image.
Does anyone have an idea about whats happening? Maybe some system variable of the web server in SICF is distincting the Client Navigator?
Thank you very much!
Edited by: Sergi Marin on Feb 13, 2008 9:26 AM

Answer 1

Whew! I figured out a really awesome solution, which has a
ton of uses.
First of all, as I should have realized, ANY variable in a
coldfusion tag is going to be figured out when the report is
called, NOT for every query result. In other words, query.xxx or
report.xxx or whatever is NEVER going to work correctly inside of a
tag, not even in a report function or the Advanced Query builder.
However, there is a straightforward way around this. Simply
make a report function with arguments, and in your field's
expression editor call the function and pass in the query or report
variables:
#report.yourFunction(query.field1, query.field2)#
You can do all sorts of Coldfusion function magic and return
whatever form of result you want.
For my particular example (dynamically creating a query
object for a chart to be inserted), I had to add a not-so-obvious
step: creating my query object with a shared scope (in this case,
the Request scope), otherwise the variable is trapped in the
function's scope. So this was my solution: I had a chart with the
"Print When" option calling my function "getChartQuery" (passing in
the query variables, of course). The function builds
"Request.ThisChartQuery" and returns True if there's something in
it (the "Print When" logic uses the boolean to decide whether to
show the chart or not). Then my chart is still query-based, but the
Advanced Query builder has NOTHING in it at all, except for the
variable containing the query object ("Request.ThisChartQuery").
There was another solution I found where the report function
makes the entire chart (using cfchart tags, etc) and saves it as a
PNG file, and then returns the path to the image. Then you simply
add an image field to the report, and you use the expression
builder to call the function. Well, hope this helped someone!
EDIT: references are "
http://www.adobe.com/go/ee54cc6"
and "
http://www.houseoffusion.com/groups/cf-talk/thread.cfm/threadid:40786"