Item8357: Allow value field for hidden parameters

When creating HTML forms manually, I usually set a series of parameters to hidden but also add a value, e.g. to pre-set the date the topic was created or to set the task status to "open" (in a task management application). RenderFormPlugin allows to hide certain parameters but doesn't allow to defined values for these parameters (at least I haven't found a way of doing it). It would be nice to introduce this feature in RenderFormPlugin.

Example:

<input type="hidden" name="DateCreated" value="%GMTIME{$day $month $year}%" />
<input type="hidden" name="TaskStatus" value="open" />

-- MartinKaufmann - 03 Dec 2009

I found the solution myself and it's rather obvious: First, predefine the value of the date field in the form definition, e.g.

| *Name* | *Type* | *Size* | *Values* | *Tooltip message* | *Attributes* |
| Date Created | date | 10 | %GMTIME{$day $month $year}% | When was this task created? | M |

In a second step, hide this field with the following call to RenderFormPlugin:

%RENDERFORM{"TestForm" templatetopic="TestTemplate" hidden="DateCreated" }%

-- MartinKaufmann - 27 Jan 2010

Careful: Item2228

-- PaulHarvey - 27 Jan 2010

Thanks for letting me know. So far, I haven't encountered any data loss. Could you described how this happened in your case? What do you mean by on update?

-- MartinKaufmann - 02 Feb 2010

IIRC, if you use RENDERFORM to render the form in edit mode from a view, it calls the submit button "update" (fields are populated with existing form data which may be modified and the user can submit ("update") their changes).

This avoids the view -> edit -> save-> cycle (becomes view->update->view)

-- PaulHarvey - 03 Feb 2010

SvenHess noted that submitting with GET method works, but using POST does not. See Tasks.Item2228

-- PaulHarvey - 03 Feb 2010

OK. I must have somehow (involuntarily) disabled this update mode. Might leave it this way.

-- MartinKaufmann - 04 Feb 2010

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