For example, you could write an RPG program as follows. I called mine LABELDATA and put it in a library named SKTEST:
Code: Select all
* To compile:
*> CRTRPGMOD LABELDATA SRCFILE(QRPGLESRC) DBGVIEW(*LIST)
*> CRTPGM LABELDATA MODULE(LABELDATA) BNDSRVPGM(QHTTPSVR/QZHBCGI)
D QtmhWrStout PR extproc('QtmhWrStout')
D DtaVar 32767A options(*varsize) const
D DtaVarLen 10I 0 const
D ErrorCode 32767a options(*varsize)
D Err ds
D 10i 0 inz(0)
D 10i 0 inz(0)
D CRLF C x'0d25'
D data s 32767a varying
/free
data = 'Content-type: text/plain' + CRLF
+ CRLF;
QtmhWrStout(data: %len(data): Err );
data = 'This data goes in the iframe.';
QtmhWrStout(data: %len(data): Err );
*inlr = *on;
/end-free
So the 'Content-type:' line tells the Apache HTTP server that the data is plain text. The line ends with CRLF (hex 0d25). Then I insert an empty line by sendign another CRLF, this tells Apache that I'm ready to begin the actual data. Then, I send a line of text that simply says "This data goes in the iframe". You can write whatever data you want here... it could be an SQL statement to read a database, or it could just be data calculated somehow in your RPG program. The point is... you can calculate any data you like, and it's not that much more difficult than it would be to run an SQL statement.
You'll need to tell Apache that it's okay to call programs in this library by adding the following to your Apache config file:
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ScriptAlias /sktest /QSYS.LIB/SKTEST.LIB
<Directory /QSYS.LIB/SKTEST.LIB>
Order allow,deny
Allow from all
</Directory>
My library is named SKTEST. You can name yours whatever you wish by making the appropriate changes to the config, above.
That can be added to a PROFOUNDUI config file if you like. Just add it to the end -- and remember that each time you reinstall ProfoundUI you'll need to go into the advanced options and tell it not to replace your httpd.conf with the one from the installation.
Once you've added those Apache config statements, you need to restart your Apache instance for the changes to take place.
Now in Genie, you can go into the "Containers" widgets in Genie and drag an iframe widget to wherever you want to show the extra label. You can also set the size of the widget, color, font, etc at this time.
- iframe1.png (19.01 KiB) Viewed 1582 times
- iframe2.png (16.87 KiB) Viewed 1582 times
The most important property, however, is the "iframe Url" property. This is how you tell it which program to call on the server. In my case, my ScriptAlias starts with /sktest, so the URL to call my program must also start with /sktest. The program's name is "labeldata" so using IFS syntax, the program name should be "labeldata.pgm". So my URL would look like this.
- iframe3.png (5.24 KiB) Viewed 1582 times
As always with Genie, you have to make sure you set a screen identifier, and save your changes to the server. Once it's all been done, the label will show up on your screen with the data from your program.
I stuck mine on the IBM-supplied command entry screen
- iframe4.png (17.99 KiB) Viewed 1582 times
That may seem like a lot of steps -- but once you've done one program, they're really easy (because you only need to update the Apache config once.) It's a really easy way to add data to a screen without having to change the underlying program -- which is especially useful if you don't want, or can't, change the existing display file.