Marcelo Piñeyro - Innovative approach to error trapping and handling in FileMaker

Описание: As FileMaker developers, we tend to neglect robust error trapping and handling in our apps. This can have adverse security and data integrity implications. In this session, we’ll cover an error trapping and handling technique that generates a script call stack trace, which greatly facilitates debugging during development, and troubleshooting after deployment. This is a proven technique that has been used in numerous production FileMaker applications over the past 5 years.

What attendees will get out of this session?
Exploration of innovative FileMaker technique that facilitates the following:
Adding extensive validations to FileMaker scripts with minimum impact on code length and readability
Easily trapping for error conditions in scripts and subscripts
Easily “throwing” an error
Automatically capturing a script stack trace of any and all errors - and state information - for every script that is part of a script chain in which an error occurs
Logging of errors that greatly facilitates debugging and troubleshooting

This technique is independent of how parameters are passed to scripts, of how results are returned from scripts, and of any type of FileMaker coding framework. It only requires a few proven custom functions that facilitate the creation of error objects and a script call trace.

Discussion of a developer’s attitude towards proactively error trapping and handling
Discussion of what types of errors to display to users, how to display those errors, and at what point in the code execution to do so
Discussion of error logging and notifications