Rule Event show/hide field A depending on field B value

I'm working on a similar feature. I can hide a CCK file field based on the content of another CCK text field when the rule is triggered by the "ABC node form is being built". It sounds like you want to trigger the rule on field data entry, but I only see '...form being built', '...form being validated' and '...form is submitted' triggers for form events. I'm not sure the Rules module can dynamically show and hide form fields the way you want; you might have to use JQuery to detect and act immediately on that kind of change.

Try conditional fields module it will be much easier for this small task. Assuming you're using cck as you never actually stated. This module is an easy way to make one cck field "conditional" of a response to another cck field.

Chris

Hi Chris,

yes, I am using cck for the field (sorry for not mentioning this before). I am looking towards Rules module as a workaround against Conditional Fields module as I am needing a field to show/hide with conditions A or B or C. Conditional Fields module currently only allows for A and B and C #719068: show if ANY of controller fields are selected (OR vs AND controllers)

Would you be able to assist?

Thanks thekenshow,
I appreciate any advice that may help me!

1) By index ID do you mean the Element ID: field_mytext[0] one?
For the field I am trying to check the value of I see: Element ID: field_example

2) Do you have any specific code you use with the show configuration message testing/debugging that may help me?

field_example
type: text
widget: checkboxes/radio
allowed values:
one
two
three
four

I am trying to check if the three was selected, and if so trigger an action to show another field.
With rules debugging ON, I see that the event trigger fails where it checks for value 'three' saying FALSE even if the value three was checked and the node form saved.

Would you be able to assist?

Thanks!

I did a quick test by creating a radio button text field (field_radio) with four options: N/A, Ontario, Manitoba, Saskatchewan. Looking at the structure of the data in the form (using Dev Load), it looks like a normal text field. But the displayed ID lacks the index (i.e., field_radio instead of field_radio[0]) which is suspicious, and doesn't test properly with a simple rule (using [0] or not). I was able to get a proper result using an Execute custom PHP code condition with the following:

To see what's happening, you can use the Show a configurable message action with PHP to display the form element value, something like this:

You can do like suggested above but I found an easier way and you don't need to activate the PHP filter module. You could get the value of the field from the from like this: $form['#node']->field_official_group[0]['value'] but this only works if you have PHP filter active.

If you want to do it without PHP filter, this is where the value from a radio CCK field is found in the form:

I think what confuses people is that the suggestions made by the Rules module for a radio (with two options in my case) CCK button look like this: field_name[value][1] and field_name[value][0] when in fact it should be like this: field_name[#default_value][0][value]

Update The above code suggested if the users have the permission to edit that particular CCK field which value you will check. I'm not an expert on CCK but it seems that CCK builds the fields diferrent depending on the user access (or other conditions). In the case of a CCK Numeric field, the field for users that did not have the right to edit the field looked something like this: field_name[#value][0][value]

If anyone is more into CCK and has an explanation for this (probably also depends on the type of CCK field) I think it would help a lot of people figuring out how to check the values for CCK fields.