hi
i want to do a button_to to generate a xml file with all users i ahve
in the DB.
in the view i do:
<%= button_to "generate xml", :action => "create_file"
%>
in the controller :
def create_file
@users = User.find(:all)
if File.exist?("/home/delmed/Bureau/users.xml")
file = File.open("/home/delmed/Bureau/users.xml","a+")
else
file =
File.new(''/home/delmed/Bureau/users.xml'',''a+'')
end
@user.each do |user|
file.puts "aa"
end
file.close
end
when i click the button nothing happen and i have any no error !!!
then its possible on click it build a window to allow to choose the
dirictory to save the file?
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Try reading the following: http://api.rubyonrails.org/classes/ActionController/Streaming.html http://www.rorexperts.com/send-data-and-send-file-in-rails-t1648.html You should be able to solve it. :) Your code just creates/opens /home/delmed/Bureau/users.xml on your machine. To make it downloadable use send_data or send_file as in the example above. You can start by @users = User.find(:all) and do a @users.to_xml as the output data on the example found on the link above. Good luck. :) -- 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.
thanks man i will take a look and try to solve it :) 2011/5/26 Cris F. <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>> Try reading the following: > > http://api.rubyonrails.org/classes/ActionController/Streaming.html > http://www.rorexperts.com/send-data-and-send-file-in-rails-t1648.html > > You should be able to solve it. :) > > Your code just creates/opens /home/delmed/Bureau/users.xml on your > machine. > To make it downloadable use send_data or send_file as in the example > above. > > You can start by > > @users = User.find(:all) > and do a @users.to_xml as the output data on the example found on the > link above. > > Good luck. :) > > -- > 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. > >-- Mediouni Adel Tunis www.metal-tn.xooit.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.
Hi Guys, Still fairly new to Rails. Want to see if I''m doing anything un-idiomatic. Few questions of style: 1. "public controller" I''m using a "public" controller. It seems to be a good semantic choice, because it''s for the landing page and the other few pages that public site visitors go to. I see "home" more often, but while home is meaningful for the landing page, it doesn''t seem a great word to describe the collection of pages accessible to site visitors who have not registered (/, about_us, tesrms_and_conditions, etc), hence my choice of "public" which seems to better fit what I''m trying to express. Weird or just different? 2. rspec view naming I know the default naming convention for a views/public/landing.html.erb is spec/views/public/landing.html.erb_spec.rb This seems like a bad idea. I don''t want to test that it''s an erb file - I want to test that the landing.html page contains whatever I want it to contain. So if I move from erb to haml that should not require me to rewrite or rename my test. As such, a better convention seems to be: spec/views/public/landing.html_spec.rb Any thoughts/opinions? I know it''s small stuff, but I''m trying to balance idioms with standard best practices with what seems to me to be the most readable and DRYest approach to writing the code. Best Wishes, Peter -- 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.
I am new to rails as well, so you might take my advise with a grain of
salt, but I needed a similar feature myself this very evening so I
found a method of adding the following to a method in one of your
controllers:
headers[''Content-Type''] =
"application/vnd.ms-excel"
headers[''Content-Disposition''] = ''attachment;
filename="report.xls"''
headers[''Cache-Control''] = ''''
Then in the corresponding view you simply put a table with all your
data in it.. for example:
<table border="1">
<tr>
<th>First Name</th><th>Last Name</th>
</tr>
<% @user.each do |u| %>
<tr>
<td><%= user.firstname %></td><td><%=
user.lastname %></td>
<% end %>
</tr>
</table>
When you visit that page it will promt for a download.. so if you were
to simply link to that page it would bring up a download prompt.
Its quick and dirty.. but I have no idea if it is the best way to do
it!
Aaron
On May 26, 4:10 pm, Peter Bell
<pe...-AS9tOuWgs4cAvxtiuMwx3w@public.gmane.org>
wrote:> Hi Guys,
>
> Still fairly new to Rails. Want to see if I''m doing anything
un-idiomatic. Few questions of style:
>
> 1. "public controller"
> I''m using a "public" controller. It seems to be a good
semantic choice, because it''s for the landing page and the other few
pages that public site visitors go to. I see "home" more often, but
while home is meaningful for the landing page, it doesn''t seem a great
word to describe the collection of pages accessible to site visitors who have
not registered (/, about_us, tesrms_and_conditions, etc), hence my choice of
"public" which seems to better fit what I''m trying to
express. Weird or just different?
>
> 2. rspec view naming
> I know the default naming convention for a views/public/landing.html.erb is
spec/views/public/landing.html.erb_spec.rb
> This seems like a bad idea. I don''t want to test that
it''s an erb file - I want to test that the landing.html page contains
whatever I want it to contain. So if I move from erb to haml that should not
require me to rewrite or rename my test. As such, a better convention seems to
be: spec/views/public/landing.html_spec.rb
>
> Any thoughts/opinions? I know it''s small stuff, but I''m
trying to balance idioms with standard best practices with what seems to me to
be the most readable and DRYest approach to writing the code.
>
> Best Wishes,
> Peter
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it work good :) thanks but it dont give me the dialog box to choose location to save the file !!! its normal? 2011/5/26 Adel Mediouni <mediouni.adel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>> thanks man > i will take a look and try to solve it :) > > 2011/5/26 Cris F. <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> > > Try reading the following: >> >> http://api.rubyonrails.org/classes/ActionController/Streaming.html >> http://www.rorexperts.com/send-data-and-send-file-in-rails-t1648.html >> >> You should be able to solve it. :) >> >> Your code just creates/opens /home/delmed/Bureau/users.xml on your >> machine. >> To make it downloadable use send_data or send_file as in the example >> above. >> >> You can start by >> >> @users = User.find(:all) >> and do a @users.to_xml as the output data on the example found on the >> link above. >> >> Good luck. :) >> >> -- >> 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. >> >> > > > -- > Mediouni Adel > Tunis > www.metal-tn.xooit.com >-- Mediouni Adel Tunis www.metal-tn.xooit.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.
require ''fastercsv''
csv_string = FasterCSV.generate do |csv|
csv <<
[''admission_no'',''student_name'',''contact_no'']
student = Student.find(:all)
student.each do |r|
csv << [r.admission_no,r.student_name,r.contact_no'']
end
end
send_data csv_string,
:type => ''text/csv; charset=iso-8859-1;
header=present'',
:disposition => "attachment; filename=student.csv"
Good luck. :)
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