Hi!
I have a problem that I need to solve when using the dynamic ajax select
feature of Hobo
(http://hobocentral.net/tutorials/dynamic_ajax_select_menus).
I am relatively new to Ruby, Rails, and Hobo.
The primary issue is that I don't understand how the select-one tag changes
the context.
Here is what I am doing:
Under certain circumstances, I need to add a new value part way through my
dynamic select process.
I investigated the select-one-or-new dialog, but the formlet didn't have
all the features that I wanted, so I decided to take a different approach
that uses a full form.
I added a link to my initial dynamic select page that takes me to a
simplified add page for the data item that I want to add.
I now have two pages:
- one page where I am doing the dynamic ajax select
- a second page where I add a new data item that will then be available on
the first page as a selection.
When I hit the save button on the second page, I am redirected back to the
first page.
Here is where I run into a problem. I want to return to the first page and
have all of my original selections re-applied, so that the user doesn't
have to re-select anything that they have already selected.
I have the selections saved in the session, and I should be able to
re-apply them.
I played with select-one, but it doesn't have a "selected" option. I can
apply the selections to filter the select-one data so that the user only
sees their original selection; however, in this case, the user still needs
to re-select.
I really want to still have all the original data available for selection,
but have the original selection pre-selected.
I subsequently played with the select-input and select-menu tags.
I can use the selected option of the select-input or select-menu tags to
select exactly what I want, but that doesn't set the context correctly for
the next selection box.
Here is a small simplified DRYML code excerpt. The actual code is more
complex and has some logic that attempts to determine whether or not the
session parameters from a previous selection are available or not. It also
has about 5 layers of selections:
<country_make-view:>
<hot-input ajax>
<select-input options="&CountryMake.user_view(current_user.id,
current_user.country_id)" selected
="&session[:trim_parms][:country_make_id]"/>
</hot-input>
</country_make-view:>
<country_model-view:>
<if test="&this_parent.country_make">
<hot-input ajax>
<select-menu options="&this_parent.country_make.country_model"
sort="true"/>
</hot-input>
</if>
<else>
<select disabled><option>First select a make</option></select>
</else>
</country_model-view:>
........
The above code never satisfies the "if test" logic, so I can't get to my
second selection box. I believe that I should be able to manually set the
context to resolve this problem. I read through the DRYML guide, but I
can't say that I have a clear idea of how to do that.
Can someone shed a little light on this?
Thx,
Ed Gomolka
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