Re: Custom forms controller and view separation of concerns

[Anthony]

Just use SQLFORM.factory in the controller to define the form fields, and then build the form manually in the view (possibly using some of the form.custom items).

Anthony

On Saturday, October 6, 2012 2:07:49 PM UTC-4, Austin Cormier wrote:

So I have the following customer form defined in my view for prototyping:

form = FORM(FIELDSET(DIV(LABEL('Email Address', 

                                _class="control-label"), 

                         DIV(INPUT(_class="input-large", _id="email", 

                                   _name='email', requires=IS_NOT_EMPTY()), 

                             _class="controls"), 

                     _class="control-group"),

                     DIV(DIV(BUTTON("Add Email", _type='submit', _class="btn"), 

                             _class="controls"), 

                     _class="control-group"),                                                                                                                                                  

             _class="gebo"),

       _class="form-horizontal")

The issue is that I need to define the form in the controller so that I can run through the form accept (don't want to do that in the views).  Even though I'm doing this in the controller, I would like the view to be responsible for styling the form.  Are there any useful techniques anyone knows of so that I can do this in a reusable and maintainable way across my application?

[Austin Cormier]

That definitely works and I've done it like that a couple times, but then I'm defining the input fields in two separate places.

I'm thinking that maybe I have a custom view function that can take a vanilla form and then add my styling to it automatically.  If I only had to do a few forms it wouldn't be a big deal but I want to try and keep the duplication as minimal as possible.

[Anthony]

Depending on what you want to do on the processing side and what you want to do on the display side, you probably don't have to completely repeat everything. You can use form.custom.widget.fieldname in the view if that is suitable. You can also use the server-side DOM to add classes, etc. Another option is to make the "formstyle" argument to SQLFORM.factory a callable, which can generate whatever form layout you want.

Anthony

[Nguyen Minh Tuan]

Hi Anthony,

 

I try to custom view by using form.custom,

But I have trouble in format control, Ex : I want to set textbox size to 10 or whatever

Can I add more attributes to form.custom.widget.fieldname?

 

Thanks,

Tuan. 

[Anthony]

All HTML helpers act like dictionaries with respect to their attributes (and attributes beginning with "_" become HTML element attributes), so for a string field:

f.custom.widget.fieldname['_size']=10

will yield:

<input class="string" id="test_fieldname" name="fieldname" size="10" type="text" value="" />

Anthony

[Nguyen Minh Tuan]

Anthony, thanks for your help!

 

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