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wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-14 00:51 UTC

Two dimensiona forms

How would you structure a two dimension form? I have projects along
the horizontal axis and users along the vertical axis and then check
boxes at the intersections. I have it structured in html, but I can''t
figure out how name the fields so that when I post it I will be able
to iterate through it in rails so that I''ll be able to make sense of
it.
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Ryan Bigg

2008-Jan-14 00:56 UTC

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Re: Two dimensiona forms

What does this form do?

On Jan 14, 2008 11:21 AM, wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> How would you structure a two dimension form? I have projects along
> the horizontal axis and users along the vertical axis and then check
> boxes at the intersections. I have it structured in html, but I
can''t
> figure out how name the fields so that when I post it I will be able
> to iterate through it in rails so that I''ll be able to make sense
of
> it.
> >
>

-- 
Ryan Bigg
http://www.frozenplague.net
Feel free to add me to MSN and/or GTalk as this email.

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wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-14 01:31 UTC

head link

Re: Two dimensiona forms

Basically There are users and projects. Each user can have access to
any number of projects. Then the final colomn is for a company admin.
The admin will have access to all projects. Here''s what I want the
hash to look like:

{"users"=>{"id"=>["1"=>{"project_id"=>["2","4"],"admin"=>"true"},"2"=>{"project_id"=>["4"],"admin"=>"false"},"3"=>{"project_id"=>["1","3","5"],"admin"=>"false"}]}

On Jan 13, 6:56 pm, "Ryan Bigg"
<radarliste...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> What does this form do?
>
> On Jan 14, 2008 11:21 AM, wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > How would you structure a two dimension form? I have projects along
> > the horizontal axis and users along the vertical axis and then check
> > boxes at the intersections. I have it structured in html, but I
can''t
> > figure out how name the fields so that when I post it I will be able
> > to iterate through it in rails so that I''ll be able to make
sense of
> > it.
>
> --
> Ryan Bigghttp://www.frozenplague.net
> Feel free to add me to MSN and/or GTalk as this email.--~--~---------~--~----~------------~-------~--~----~
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Ryan Bigg

2008-Jan-14 01:38 UTC

head link

Re: Two dimensiona forms

How about a select box with :multiple => true?

<%= select "users", "projects[]", @projects.map { |p|
[p.name,p.id] }, {
:multiple => true } %>

On Jan 14, 2008 12:01 PM, wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> Basically There are users and projects. Each user can have access to
> any number of projects. Then the final colomn is for a company admin.
> The admin will have access to all projects. Here''s what I want the
> hash to look like:
>
>
>
{"users"=>{"id"=>["1"=>{"project_id"=>["2","4"],"admin"=>"true"},"2"=>{"project_id"=>["4"],"admin"=>"false"},"3"=>{"project_id"=>["1","3","5"],"admin"=>"false"}]}
>
> On Jan 13, 6:56 pm, "Ryan Bigg"
<radarliste...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > What does this form do?
> >
> > On Jan 14, 2008 11:21 AM,
wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
<wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> wrote:
> >
> >
> >
> > > How would you structure a two dimension form? I have projects
along
> > > the horizontal axis and users along the vertical axis and then
check
> > > boxes at the intersections. I have it structured in html, but I
can''t
> > > figure out how name the fields so that when I post it I will be
able
> > > to iterate through it in rails so that I''ll be able to
make sense of
> > > it.
> >
> > --
> > Ryan Bigghttp://www.frozenplague.net
> > Feel free to add me to MSN and/or GTalk as this email.
> >
>

-- 
Ryan Bigg
http://www.frozenplague.net
Feel free to add me to MSN and/or GTalk as this email.

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Ryan Bigg

2008-Jan-14 01:39 UTC

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Re: Two dimensiona forms

Ah, nevermind. You''re trying to edit all users at the same time.
That''s
something more complicated, sorry. You may be able to iterate through the
users and do users[<%= user.id %>]

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wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-14 01:59 UTC

head link

Re: Two dimensiona forms

I can get that, but when I try and do users[<%= user.id%>][project_ids]
[] I get an error when I submit the form. Saying:

  Status: 500 Internal Server Error
  Conflicting types for parameter containers. Expected an instance of
Hash but found an instance of String. This can be caused by colliding
Array and Hash parameters like qs[]=value&qs[key]=value.

On Jan 13, 7:39 pm, "Ryan Bigg"
<radarliste...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Ah, nevermind. You''re trying to edit all users at the same time.
That''s
> something more complicated, sorry. You may be able to iterate through the
> users and do users[<%= user.id %>]--~--~---------~--~----~------------~-------~--~----~
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Anton J Aylward

2008-Jan-14 02:11 UTC

head link

Re: Two dimensiona forms

wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org said the following on 13/01/08
07:51 PM:> How would you structure a two dimension form? I have projects along
> the horizontal axis and users along the vertical axis and then check
> boxes at the intersections. I have it structured in html, but I
can''t
> figure out how name the fields so that when I post it I will be able
> to iterate through it in rails so that I''ll be able to make sense
of
> it.
By a curious coincidence I was reading the O''Reilly "Rails
Cookbook"
yesterday and they had an example of this.  ISBN: 0-596-52731-4

"5.10 Processing Dynamically Created Input Fields."
The example used Users and Roles and a matrix of dynamically generated
check-boxes.

There is a nested loop to generate the check-boxes in the view and a
another nested loop in the controller to take apart the hash of the
user.id-projects.id pairs that are handed back in the params[] entry.

What like about this, what I prefer over pull-down select lists, is that
 it makes the ''linkages'' very visible.

What bothers me about it though is that it only makes for a limited
number of columns.  Too many and they don''t fit on the screen.
However for many applications I imagine that wouldn''t an issue.






An extension to this ....

What I wonder about is how to do ''tri-state'' check boxes.
As in something like Apache''s "Allow/Deny" hierarchy.
A user might have explicitly stated Allow/Deny permission at one level,
or not, in which the next level up, the owner, would apply.

For example, /etc/httpd/httpd.conf contains
<Directory "/var/www/html">
    .....
    AllowOverride All
    Order allow,deny
    Allow from all
</Directory>

but a .htaccess at /var/www/html/applications/blogerator/data
could contain and

   Order deny,allow
   Deny from spamlist
   Allow from starbucks-wifi

I emphasise the "COULD".  If the local override isn''t there
it defaults
to the higher level.
RTFM for more details
http://httpd.apache.org/docs/2.0/mod/core.html#allowoverride
//end of example


So the tri-state wouldn''t be simple yes-no check-boxes, it would be
"explicit-yes" (tick mark), "explicit-no" (cross mark) and
"unmarked".

Any ideas?

-- 
I can think of nothing more boring for the American people than to have
to sit in their living rooms for a whole half hour looking at my face on
their television screens.
    Dwight D. Eisenhower

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Anton J Aylward

2008-Jan-14 02:19 UTC

head link

Re: Two dimensiona forms

wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org said the following on 13/01/08
08:59 PM:> I can get that, but when I try and do users[<%=
user.id%>][project_ids]
> [] I get an error when I submit the form. Saying:
> 
>   Status: 500 Internal Server Error
>   Conflicting types for parameter containers. Expected an instance of
> Hash but found an instance of String. This can be caused by colliding
> Array and Hash parameters like qs[]=value&qs[key]=value.
> 
> On Jan 13, 7:39 pm, "Ryan Bigg"
<radarliste...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>> Ah, nevermind. You''re trying to edit all users at the same
time. That''s
>> something more complicated, sorry. You may be able to iterate through
the
>> users and do users[<%= user.id %>]
See my other post about "Rails Cookbook"
Code fragments at http://www.oreilly.com/catalog/9780596527310/toc.html
and
http://safari.oreilly.com/0596527314/Processing_Dynamically_Created_Input_Fields

-- 
Wherever you see a successful business, someone once made a courageous
decision.
   --Peter F. Drucker

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wbsmith83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org

2008-Jan-14 05:19 UTC

head link

Re: Two dimensiona forms

Thanks. Too bad the oreilly stuff is limited unless I pay. Could you
paste the view code?

On Jan 13, 8:19 pm, Anton J Aylward <a...-XdPx9462FWc@public.gmane.org>
wrote:> wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org said the following on
13/01/08 08:59 PM:
>
> > I can get that, but when I try and do users[<%=
user.id%>][project_ids]
> > [] I get an error when I submit the form. Saying:
>
> >   Status: 500 Internal Server Error
> >   Conflicting types for parameter containers. Expected an instance of
> > Hash but found an instance of String. This can be caused by colliding
> > Array and Hash parameters like qs[]=value&qs[key]=value.
>
> > On Jan 13, 7:39 pm, "Ryan Bigg"
<radarliste...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> >> Ah, nevermind. You''re trying to edit all users at the
same time. That''s
> >> something more complicated, sorry. You may be able to iterate
through the
> >> users and do users[<%= user.id %>]
>
> See my other post about "Rails Cookbook"
> Code fragments athttp://www.oreilly.com/catalog/9780596527310/toc.html
> andhttp://safari.oreilly.com/0596527314/Processing_Dynamically_Created_I...
>
> --
> Wherever you see a successful business, someone once made a courageous
> decision.
>    --Peter F. Drucker--~--~---------~--~----~------------~-------~--~----~
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Sazima

2008-Jan-14 13:18 UTC

head link

Re: Two dimensiona forms

Hey Anton,

I think that''s more a matter of the widget you''re using
(checkbox)
than Rails. Checkboxes only have 2 states. If you used a select box
with 3 options ("explicit-yes", "explicit-no" and
"unmarked") instead
of the checkbox, that would work. Sure, it wouldn''t look very good,
but still...

Cheers, Sazima

On Jan 14, 12:11 am, Anton J Aylward <a...-XdPx9462FWc@public.gmane.org>
wrote:> wbsmit...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org said the following on
13/01/08 07:51 PM:
>
> > How would you structure a two dimension form? I have projects along
> > the horizontal axis and users along the vertical axis and then check
> > boxes at the intersections. I have it structured in html, but I
can''t
> > figure out how name the fields so that when I post it I will be able
> > to iterate through it in rails so that I''ll be able to make
sense of
> > it.
>
> By a curious coincidence I was reading the O''Reilly "Rails
Cookbook"
> yesterday and they had an example of this.  ISBN: 0-596-52731-4
>
> "5.10 Processing Dynamically Created Input Fields."
> The example used Users and Roles and a matrix of dynamically generated
> check-boxes.
>
> There is a nested loop to generate the check-boxes in the view and a
> another nested loop in the controller to take apart the hash of the
> user.id-projects.id pairs that are handed back in the params[] entry.
>
> What like about this, what I prefer over pull-down select lists, is that
>  it makes the ''linkages'' very visible.
>
> What bothers me about it though is that it only makes for a limited
> number of columns.  Too many and they don''t fit on the screen.
> However for many applications I imagine that wouldn''t an issue.
>
> An extension to this ....
>
> What I wonder about is how to do ''tri-state'' check boxes.
> As in something like Apache''s "Allow/Deny" hierarchy.
> A user might have explicitly stated Allow/Deny permission at one level,
> or not, in which the next level up, the owner, would apply.
>
> For example, /etc/httpd/httpd.conf contains
> <Directory "/var/www/html">
>     .....
>     AllowOverride All
>     Order allow,deny
>     Allow from all
> </Directory>
>
> but a .htaccess at /var/www/html/applications/blogerator/data
> could contain and
>
>    Order deny,allow
>    Deny from spamlist
>    Allow from starbucks-wifi
>
> I emphasise the "COULD".  If the local override isn''t
there it defaults
> to the higher level.
> RTFM for more
detailshttp://httpd.apache.org/docs/2.0/mod/core.html#allowoverride
> //end of example
>
> So the tri-state wouldn''t be simple yes-no check-boxes, it would
be
> "explicit-yes" (tick mark), "explicit-no" (cross mark)
and "unmarked".
>
> Any ideas?
>
> --
> I can think of nothing more boring for the American people than to have
> to sit in their living rooms for a whole half hour looking at my face on
> their television screens.
>     Dwight D. Eisenhower--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
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Anton J Aylward

2008-Jan-14 14:25 UTC

head link

Re: Tri-state checkboxes (was: Two dimensiona forms)

Sazima said the following on 14/01/08 08:18 AM:> Hey Anton,
> 
> I think that''s more a matter of the widget you''re using
(checkbox)
> than Rails. Checkboxes only have 2 states. If you used a select box
> with 3 options ("explicit-yes", "explicit-no" and
"unmarked") instead
> of the checkbox, that would work. Sure, it wouldn''t look very
good,
> but still...
*sigh*

Yes, and the ''it wouldn''t look good'' means it
won''t be acceptable.
This is still ''rows and columns'' application like the one
mbsmth asked
about.  It''s essentially a dashboard - it must be very clear at a
glance
what state for each cross-point

The sketch I have looks something like this
(I''ve altered it to suit this thread)
Read "[-]" as ''explicit-no'' and "[+]" as
''explicit-yes''
The sketch is colour-enhanced, which I can''t show here.

           canRead    canWrite   canExec   canChmod
defaults    [+]         [-]        [-]       [-]
--------------------------------------------------------------------------
AntonA      [ ]         [+]        [+]       [+]
BillB       [ ]         [+]        [+]       [ ]
CathieC     [ ]         [+]        [ ]       [ ]
DannyD      [-]         [ ]        [ ]       [ ]


The point of the colour is to show the original settings.
So DannyD''s canRead would be outlined in red when the screen comes up
and even if the ''-'' is changed to ''[ ]'' or
''[+]'' it would still be
outlined in red until it is submitted and the screen redrawn.


-- 
You''ve never been lost until you''ve been lost at Mach 3.
  -- Paul F Crickmore

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Michael Schuerig

2008-Jan-14 15:22 UTC

head link

Re: Two dimensiona forms

On Monday 14 January 2008, Anton J Aylward wrote:> What I wonder about is how to do ''tri-state'' check boxes.
By inserting select elements with three options and converting them to 
tri-state checkboxes in an unobtrusive JavaScript script triggered by 
dom:loaded (custom Prototype event).

I''m pretty sure that there are scripts for tri-state check boxes, 
although I''ve never used one. When you''ve found such a script
that
suits your needs it''s almost trivial to apply it.

Michael

-- 
Michael Schuerig
mailto:michael-q5aiKMLteq4b1SvskN2V4Q@public.gmane.org
http://www.schuerig.de/michael/

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Anton J Aylward

2008-Jan-14 15:54 UTC

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Re: Two dimensiona forms

Michael Schuerig said the following on 14/01/08 10:22
AM:> On Monday 14 January 2008, Anton J Aylward wrote:
>> What I wonder about is how to do ''tri-state'' check
boxes.
> 
> By inserting select elements with three options and converting them to 
> tri-state checkboxes in an unobtrusive JavaScript script triggered by 
> dom:loaded (custom Prototype event).
> 
> I''m pretty sure that there are scripts for tri-state check boxes, 
> although I''ve never used one. When you''ve found such a
script that
> suits your needs it''s almost trivial to apply it.
"... which is left as an exercise for the reader..."

Are there some tutorials about handing back javascript values to Rails?

Well, googling I found this
http://www.thinkvitamin.com/features/design/web-app-without-makeup-the-design-iterations-of-teamsnap
which is _almost_ the discussion we had with the end users!

-- 
Education is a better safeguard of liberty than a standing army.
    --Edward Everett

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Michael Schuerig

2008-Jan-14 16:44 UTC

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Re: Two dimensiona forms

On Monday 14 January 2008, Anton J Aylward wrote:> Michael Schuerig said the following on 14/01/08 10:22 AM:
> > On Monday 14 January 2008, Anton J Aylward wrote:
> >> What I wonder about is how to do ''tri-state''
check boxes.
> >
> > By inserting select elements with three options and converting them
> > to tri-state checkboxes in an unobtrusive JavaScript script
> > triggered by dom:loaded (custom Prototype event).
> >
> > I''m pretty sure that there are scripts for tri-state check
boxes,
> > although I''ve never used one. When you''ve found such
a script that
> > suits your needs it''s almost trivial to apply it.
>
> "... which is left as an exercise for the reader..."
>
> Are there some tutorials about handing back javascript values to
> Rails?
There is no problem. Store the values, yes/no/don''t know, in a hidden 
field with the same name as the original select element and all is 
fine. Assuming that you want the changes to take effect only when a 
submit button is clicked. If you want them to be effective immediately, 
you need ajax.

If you intend to have a go at this stuff yourself, I suggest you read a 
good JavaScript book before starting. My suggestions (choose what suits 
you)

As a tutorial that touches on (almost) advanced stuff

John Resig
Pro JavaScript Techniques
Apress 2006

For reference

David Flanagan
JavaScript. The Definitive Guide. 5th Edition
O''Reilly 2006

For Prototype.js

Christophe Portneuve
Prototype and script.aculo.us
Pragmatic Programmers 2007
> Well, googling I found this
> http://www.thinkvitamin.com/features/design/web-app-without-makeup-th
>e-design-iterations-of-teamsnap which is _almost_ the discussion we
> had with the end users!
Looks like a good starting point for the visual aspect. For the 
mechanism in the background there doesn''t appear to be a readymade 
solution. With some JavaScript knowledge you will be able to do it 
yourself, or you may want to find someone with the requisite skills.

Michael

-- 
Michael Schuerig
mailto:michael-q5aiKMLteq4b1SvskN2V4Q@public.gmane.org
http://www.schuerig.de/michael/

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Rails - Jan 2008 - Two dimensiona forms

Two dimensiona forms

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Re: Tri-state checkboxes (was: Two dimensiona forms)

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