Hi,
I''m having some trouble with my form. The thing is I''m using a
loop to
generate check_box_tags and then when the user clicks submit I want to
be able to see what he checked. For each checked box I want to copy a
file to the corresponding directory.
Here''s the form:
<%form_for :cats, :url => {:action => :save_mt} do%>
<%@flokkar.each do |flokkur|%>
<p>
<%= check_box_tag("cats[#{flokkur}]",1,false) %>
<%= flokkur %>
</p>
<%end%>
<%= submit_tag "Vista mælitæki", :class =>
''submit''%>
<%end%>
Development.log shows these parameters have been passed:
Parameters: {"commit"=>"Vista mælitæki",
"authenticity_token"=>"B2u5ULNr7IJ/ta0+hiAMBjmjEtTtc/yMAQQvSxFn2d0=",
"cats"=>{"Geðsjúkraþjálfun"=>"1"}}
Here I only checked "Geðsjúkraþjálfun" and then submitted.
The problem is in the controller. How can I loop through the cats hash
and check if the key is there? I now have something like this:
@flokkar.each do |flokkur|
if params[:cats][:flokkur] == 1
....do some stuff...
end
end
#(@flokkar is the array that I used to build the form.)
But i never execute the block inside the if condition check. I''ve also
tried params[:cats][flokkur] but nothing happens. How can I make ruby
check whether a key exists? Like if I had a string "foo" and a hash
"durr", how could I check if durr[:foo] exists without writing the
whole
thing??
BR,
Sindri
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Hi, Are you trying to apply a loop on cats hash?? If yes then try this: @var1 = [] params[:cats].each do |key, value| @var1 << key end if @var1.include?(your_key) do this else do that end Regards, Saurabh -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Sindri Guðmundsson wrote:> Hi, > I''m having some trouble with my form. The thing is I''m using a loop to > generate check_box_tags and then when the user clicks submit I want to > be able to see what he checked. For each checked box I want to copy a > file to the corresponding directory. > > Here''s the form: > > <%form_for :cats, :url => {:action => :save_mt} do%> > <%@flokkar.each do |flokkur|%> > <p> > <%= check_box_tag("cats[#{flokkur}]",1,false) %> > <%= flokkur %> > </p> > <%end%> > <%= submit_tag "Vista mælitæki", :class => ''submit''%> > <%end%> >[...] This is strange code. You''re inside a form_for, so why are you using check_box_tag rather than check_box ? Best, -- Marnen Laibow-Koser http://www.marnen.org marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Marnen Laibow-Koser wrote:> [...] > > This is strange code. You''re inside a form_for, so why are you using > check_box_tag rather than check_box ?I read somewhere that I shouldn''t do it like this, but I couldn''t get the info on checked/uncecked using check_box. Should I get rid of the form_for and change the submit button to POST button_to? Why? Thanks Saurabh Peshkar, ofc I should''ve done that, thanks! :) -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Sindri Guðmundsson wrote:> Marnen Laibow-Koser wrote: >> [...] >> >> This is strange code. You''re inside a form_for, so why are you using >> check_box_tag rather than check_box ? > > I read somewhere that I shouldn''t do it like this, but I couldn''t get > the info on checked/uncecked using check_box. Should I get rid of the > form_for and change the submit button to POST button_to? Why?No, you should fix the problem that''s preventing you from using check_box!> > > Thanks Saurabh Peshkar, ofc I should''ve done that, thanks! :)Best, -- Marnen Laibow-Koser http://www.marnen.org marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Marnen Laibow-Koser wrote:> Sindri Guðmundsson wrote: >> Marnen Laibow-Koser wrote: >>> [...] >>> >>> This is strange code. You''re inside a form_for, so why are you using >>> check_box_tag rather than check_box ? >> >> I read somewhere that I shouldn''t do it like this, but I couldn''t get >> the info on checked/uncecked using check_box. Should I get rid of the >> form_for and change the submit button to POST button_to? Why? > > No, you should fix the problem that''s preventing you from using > check_box! > >> >> >> Thanks Saurabh Peshkar, ofc I should''ve done that, thanks! :) > > Best, > -- > Marnen Laibow-Koser > http://www.marnen.org > marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.orgHi, I''ve tried that, but I can''t seem to have check_box write anything else to params[:cats] other than nil. The only thing that happened was that params[:cats] was an array the same length as the number of categories I had but only contained nil-objects. Could you please show me how I should generate the check_boxes inside the loop in my view? BR, Sindri -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
If this helps these are the parameters passed when I use check_box:
Parameters: {"commit"=>"Vista mælitæki",
"authenticity_token"=>"B2u5ULNr7IJ/ta0+hiAMBjmjEtTtc/yMAQQvSxFn2d0=",
"cats"=>{"flokkur"=>[nil, nil, nil, nil, nil, nil,
nil, nil, nil, nil,
nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]}}
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Sindri Guðmundsson wrote:> If this helps these are the parameters passed when I use check_box: > > > Parameters: {"commit"=>"Vista mælitæki", > "authenticity_token"=>"B2u5ULNr7IJ/ta0+hiAMBjmjEtTtc/yMAQQvSxFn2d0=", > "cats"=>{"flokkur"=>[nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, > nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]}}And what does that version of the view code look like? Best, -- Marnen Laibow-Koser http://www.marnen.org marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Marnen Laibow-Koser wrote:> Sindri Guðmundsson wrote: >> If this helps these are the parameters passed when I use check_box: >> >> >> Parameters: {"commit"=>"Vista mælitæki", >> "authenticity_token"=>"B2u5ULNr7IJ/ta0+hiAMBjmjEtTtc/yMAQQvSxFn2d0=", >> "cats"=>{"flokkur"=>[nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, >> nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]}} > > And what does that version of the view code look like? > > Best, > -- > Marnen Laibow-Koser > http://www.marnen.org > marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.orgHi, It looks like this now; <%form_for :cats, :url => {:action => :save_mt} do |form|%> <%@flokkar.each do |flokkur|%> <p> <%= form.check_box ''flokkur[]'' %> <%= flokkur %> </p> <%end%> <%= submit_tag "Vista mælitæki", :class => ''submit''%> <%end%> I''ve tried different parameters for the check_box but to no success... BR, Sindri -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
Sindri Guðmundsson wrote:> Marnen Laibow-Koser wrote: >> Sindri Guðmundsson wrote: >>> If this helps these are the parameters passed when I use check_box: >>> >>> >>> Parameters: {"commit"=>"Vista mælitæki", >>> "authenticity_token"=>"B2u5ULNr7IJ/ta0+hiAMBjmjEtTtc/yMAQQvSxFn2d0=", >>> "cats"=>{"flokkur"=>[nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, >>> nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]}} >> >> And what does that version of the view code look like? >> >> Best, >> -- >> Marnen Laibow-Koser >> http://www.marnen.org >> marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org > > Hi, > It looks like this now; > > > <%form_for :cats, :url => {:action => :save_mt} do |form|%> > <%@flokkar.each do |flokkur|%> > <p> > <%= form.check_box ''flokkur[]'' %> > <%= flokkur %> > </p> > <%end%> > <%= submit_tag "Vista mælitæki", :class => ''submit''%> > <%end%> > > > I''ve tried different parameters for the check_box but to no success... > > BR, > SindriFinally got it, the empty hash did the trick ;) Thanks though :) <%form_for :cats, :url => {:action => :save_mt} do |form|%> <%@flokkar.each do |flokkur|%> <p> <%= form.check_box flokkur, {}, "yes", "no" %> <%= flokkur %> </p> <%end%> <%= submit_tag "Vista mælitæki", :class => ''submit''%> <%end%> -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.