Hi @Kal_lam and everyone else,
I am experiencing severe slowness when using Enketo web forms on low- to mid-range Android tablets. My survey consists in 21 repeating groups, all displayed on a single page (all within a group with field-list appearance).
I suspect that the slowness is due to the calculations I am running. In each repeating group, following a “text” question named “enternameGROUP” (where GROUP is a suffix for the repeating group in which this appears), I perform the following:
| type | name | calculate |
|---|---|---|
| calculate | alter_textGROUP | concat(“somestring”, position(…), “: ”, ${entername}, “ somestring ”) |
Immediately after closing the repeating group, I concatenate all the values in alter_textGROUP:
| type | name | calculate |
|---|---|---|
| calculate | new_altersGROUP | concat(${alter_textGROUP}) |
I use this to create one “new_altersGROUP” per repeating group. So after the first repeating group I have the form creates new_alters1, after the second repeating group new_alters2, etc.
In each group, I present all the “new_altersGROUP” variables that have already been created in a note. For example, in repeating group 2, I have the following field:
| type | name | calculate |
|---|---|---|
| note | namesfromprev2 | ${new_alters1} |
In repeating group 3
| type | name | calculate |
|---|---|---|
| note | namesfromprev3 | ${new_alters1} ${new_alters 2} |
etc.
The resulting form, with 21 repeating groups, is unusably slow. Specifically, clicking the “+” button in any of the repeating groups will hang the form for multiple seconds (4 to 5 seconds at best, more in some cases). My workflow requires the ability to very rapidly add elements to the repeating groups. (I am asking questions in which a respondent lists other people quickly. For each person I need to click the plus, add the person named. And only once respondent has finished listing out people do I ask the other questions in the repeating group.)
I am looking for help on how to make the form more responsive. The key think I need to achieve is
- Repeating groups that are ideally all visible at the same time, where I can very rapidly add new entries using the + button on enketo web forms
- The ability to show all answers for a particular question in previously entered repeating groups
Additional information:
-
I previously had a workflow where I performed one more concatenation, so I could store all previously entered answers in a single variable: concatenate new_alters1 and new_alters2 in a variable previous_alters2, then concatenate new_alters3 with previous_alters2 in a variable previous_alters3, etc. This was even slower.
-
Each repeating group has some 10 to 15 questions in total. One of these is a select_one_from_file that pulls from a csv with 3700 rows
