Hide line from script content when widget unselected

[monicagiraldochica]

Hi, thank you again for this amazing app. I continue to personalize for our users and would appreciate some help with the following:

I have 3 partitions: normal, bigmem, gpu. A widget called nodes should only be visible when the selected partition is normal. That works! And then when the user types in the number of nodes, it gracefully adds the line #SBATCH --nodes=n. However, when the user unselects the checkbox widget, that line stays in the script content. And I would like to remove it. How do I add an action for when a checkbox is unselected? In this case I would guess it would be, assign empty value to widget nodes? Also, if after writing the number of nodes I go and chose any of the other partitions, my widget disappears but the line in the script is still there. Our users love to request multiple nodes when they dont need to :-) so I would like to reduce that temptation as much as possible :-).

By the way, the same happens with things like "show email options". I would love to remove the email lines if possible, when the checkbox is unselected.

This is my current code:
partition:
widget: select
label: Partition
required: true
options:
- [ Normal,
normal ]
- [ High memory,
bigmem,
set-label-cores_memory_2: "Memory per core (up to 31GB)",
set-value-cores_memory_2: 31,
set-max-cores_memory_2: 31,
hide-show_nodes_option,
hide-nodes ]
- [ GPU,
gpu,
hide-show_nodes_option,
hide-nodes ]

show_nodes_option:
widget: checkbox
options:
- [ "My job uses MPI", "", show-nodes ]

nodes:
widget: number
label: "Number of nodes (1 - 30)"
indent: 1
min: 1

script: |
#!/bin/bash
#SBATCH --account=#{account}
#SBATCH --partition=#{partition}
#SBATCH --nodes=#{nodes}
#SBATCH --cpus-per-task=#{cores_memory_1}
#SBATCH --mem-per-cpu=#{cores_memory_2}G
#SBATCH --time=#{zeropadding(time,2)}:00:00
#SBATCH --mail-user=#{email}
#SBATCH --mail-type=#{mail_option}

Thanks!!

[mnakao]

Dear @monicagiraldochica,

When you want to remove a line in the script section, use "disable-" instead of "hide-".
Does the code below meet your needs?

form:
  partition:
    widget: select
    label: Partition
    required: true
    options:
      - [ Normal, normal ]
      - [ High memory, bigmem, disable-nodes ]
      - [ GPU, gpu, disable-nodes ]

  nodes:
    widget: number
    label: "Number of nodes (1 - 30)"
    indent: 1
    min: 1

script: |
  #!/bin/bash
  #SBATCH --partition=#{partition}
  #SBATCH --nodes=#{nodes}

Thanks,

[monicagiraldochica]

Hi, thank you for your reply. It only works partially the solution.

When I click gpu or highmem partition, the line does disappear from the script. But if I select the normal partition, then the checkbox and the field for number of nodes appear. Then, if I write the number of nodes that I need but later change my mind and unselect that checkbox, the field for number of nodes disappear, but the line in the script is still there.

I am attaching a screenshot to make it more clear. So, what I would want to do is that when I uncheck the checkbox, the line disappears from the script if it was there.

So, first I check the checkbox that says "My job uses MPI", and write the number of nodes:

Then, I uncheck the checkbox, but the line is still in the script:

Here's another example of the issue. If I select email:

But then change my mind, would be nice if the email lines disappear:

Thanks!

[mnakao]

Perhaps, I figure out what you're trying to do. The enable-<widget> command enables the specified when you select that option.
How about the below form.yml?

form:
  partition:
    widget: select
    label: Partition
    required: true
    options:
      - [ Normal,      normal ]
      - [ High memory, bigmem, disable-show_nodes_option, disable-nodes ]
      - [ GPU,         gpu,    disable-show_nodes_option, disable-nodes ]

  show_nodes_option:
    widget: checkbox
    indent: 1
    options:
      - [ "My job uses MPI", "", enable-nodes ]

  nodes:
    widget: number
    indent: 1
    label: "Number of nodes (1 - 30)"

  show_mail_option:
    widget: checkbox
    options:
      - [Show email options, "", enable-mail_option, enable-mail_address]

  mail_option:
    widget: checkbox
    label: Mail option
    indent: 1
    separator: ","
    options:
      - [Beginning of job exectuion, BEGIN, enable-mail_address]
      - [END, END, enable-mail_address]

  mail_address:
    widget: email
    label: Email
    indent: 1

script: |
  #!/bin/bash
  #SBATCH --partition=#{partition}
  #SBATCH --nodes=#{nodes}
  #SBATCH --mail-user=#{mail_address}
  #SBATCH --mail-type=#{mail_option}

Note that the first widget options also work as follows. disable-<widget> and enable-<widget> have the opposite meaning.

    options:
      - [ Normal,      normal, enable-show_nodes_option, enable-nodes ]
      - [ High memory, bigmem ]
      - [ GPU,         gpu ]

Thanks,