The limit is in the variable 

#define MAX_N_ATTR      100

in elogd.c. If you increase it and recompile, it could work, but at some time you will get a stack overflow since arrays with that size are dynamically allocated on the stack, and depending on your compiler settings the stack size is only finite.

Stefan

Dear ELOG users,

starting with SVN revision 2328, custom input forms are implemented. This allows application specific formats for check lists etc. In our specific case we had to implement a shift check list, which was quite long. Furthermore the check list should be optimized for an iPad, which we take in the field and record various checks and readings (in our case some gas pressure gauges at the PSI particle accelerator). Since the standard ELOG interface was too inflexible, a completely hand-written form was needed. The form can be activated by the new configuration options Custom New Form, Custom Edit Form and Custom Display Form, one for a new entry, an entry to edit and and entry to display. In our case we used the same form for all three cases. This is how the shift check list looks under the Safari Browser on a PC:

And here is how it looks on the iPad:

Each section can be collapsed and expanded (blue arrows at the left), and various internal checks are made before the check list can be submitted.

Implementing such forms is however more something for the advanced user, since you have to hand-write HTML with CSS and JavaScript code. It can then however be a powerful method for check lists. Please find in the attachments the elogd.cfg configuration for that logbook and the shiftcheck.html source code file. It is a bit complicated since the page is a static page, elogd just serves it from the file. This requires all the dynamic functions to be implemented inside the HTML file with JavaScript. To display an entry for example, the JavaScript loads the raw data with the "?cmd=Download" command and the populates the form fields. The collapsing and expanding is done by using CSS properties. The integrated style sheet was optimized for the rendering on an iPad. Rather large fonts were chosen so that the items can be checked easily with your finger tips. Various parameters are sent between the browser and the elogd program via hidden fields and cookies. So only something for experts! But if you go through the effort and hand-write the form, it can be very handy. Note that you have to upgrade to SVN revision 2328 for the three new options.

Right now it is not possible to easily include pictures into the message body, but I put it on the wishlist. Of course you can always refer to external pictures if you submit your text as HTML and put the proper tags there like this one:

and you can even scale them like

but of course this requires to have that image stored somewhere else. I will probably add a feature like

att:name.gif

which will reference a picture from the attachment, and will be converted to the full picture name after submitting that message.