Looking up data Online¶
You may find yourself using large reference files to lookup choices using the search() function; or individual data items using the pulldata() function. If these files become large and they are updated often then you may experience the following issues:
- Every time a user of fieldTask opens a form that uses the reference data then all of that data has to be loaded into memory which can be slow.
- When the reference data is changed it has to be downloaded onto all the enumerator phones. So if the file was say 5 MB in size and you had 100 enumerators that would be 500MB of data downloading. This will become a major issue if the reference file is updated multiple times per day.